essay on energy source

Renewable Energy

Renewable energy comes from sources that will not be used up in our lifetimes, such as the sun and wind.

Earth Science, Experiential Learning, Engineering, Geology

Wind Turbines in a Sheep Pasture

Wind turbines use the power of wind to generate energy. This is just one source of renewable energy.

Photograph by Jesus Keller/ Shutterstock

The wind, the sun, and Earth are sources of  renewable energy . These energy sources naturally renew, or replenish themselves.

Wind, sunlight, and the planet have energy that transforms in ways we can see and feel. We can see and feel evidence of the transfer of energy from the sun to Earth in the sunlight shining on the ground and the warmth we feel when sunlight shines on our skin. We can see and feel evidence of the transfer of energy in wind’s ability to pull kites higher into the sky and shake the leaves on trees. We can see and feel evidence of the transfer of energy in the geothermal energy of steam vents and geysers .

People have created different ways to capture the energy from these renewable sources.

Solar Energy

Solar energy can be captured “actively” or “passively.”

Active solar energy uses special technology to capture the sun’s rays. The two main types of equipment are photovoltaic cells (also called PV cells or solar cells) and mirrors that focus sunlight in a specific spot. These active solar technologies use sunlight to generate electricity , which we use to power lights, heating systems, computers, and televisions.

Passive solar energy does not use any equipment. Instead, it gets energy from the way sunlight naturally changes throughout the day. For example, people can build houses so their windows face the path of the sun. This means the house will get more heat from the sun. It will take less energy from other sources to heat the house.

Other examples of passive solar technology are green roofs , cool roofs, and radiant barriers . Green roofs are completely covered with plants. Plants can get rid of pollutants in rainwater and air. They help make the local environment cleaner.

Cool roofs are painted white to better reflect sunlight. Radiant barriers are made of a reflective covering, such as aluminum. They both reflect the sun’s heat instead of absorbing it. All these types of roofs help lower the amount of energy needed to cool the building.

Advantages and Disadvantages There are many advantages to using solar energy. PV cells last for a long time, about 20 years.

However, there are reasons why solar power cannot be used as the only power source in a community. It can be expensive to install PV cells or build a building using passive solar technology.

Sunshine can also be hard to predict. It can be blocked by clouds, and the sun doesn’t shine at night. Different parts of Earth receive different amounts of sunlight based on location, the time of year, and the time of day.

Wind Energy

People have been harnessing the wind’s energy for a long, long time. Five-thousand years ago, ancient Egyptians made boats powered by the wind. In 200 B.C.E., people used windmills to grind grain in the Middle East and pump water in China.

Today, we capture the wind’s energy with wind turbines . A turbine is similar to a windmill; it has a very tall tower with two or three propeller-like blades at the top. These blades are turned by the wind. The blades turn a generator (located inside the tower), which creates electricity.

Groups of wind turbines are known as wind farms . Wind farms can be found near farmland, in narrow mountain passes, and even in the ocean, where there are steadier and stronger winds. Wind turbines anchored in the ocean are called “ offshore wind farms.”

Wind farms create electricity for nearby homes, schools, and other buildings.

Advantages and Disadvantages Wind energy can be very efficient . In places like the Midwest in the United States and along coasts, steady winds can provide cheap, reliable electricity.

Another great advantage of wind power is that it is a “clean” form of energy. Wind turbines do not burn fuel or emit any pollutants into the air.

Wind is not always a steady source of energy, however. Wind speed changes constantly, depending on the time of day, weather , and geographic location. Currently, it cannot be used to provide electricity for all our power needs.

Wind turbines can also be dangerous for bats and birds. These animals cannot always judge how fast the blades are moving and crash into them.

Geothermal Energy

Deep beneath the surface is Earth’s core . The center of Earth is extremely hot—thought to be over 6,000 °C (about 10,800 °F). The heat is constantly moving toward the surface.

We can see some of Earth’s heat when it bubbles to the surface. Geothermal energy can melt underground rocks into magma and cause the magma to bubble to the surface as lava . Geothermal energy can also heat underground sources of water and force it to spew out from the surface. This stream of water is called a geyser.

However, most of Earth’s heat stays underground and makes its way out very, very slowly.

We can access underground geothermal heat in different ways. One way of using geothermal energy is with “geothermal heat pumps.” A pipe of water loops between a building and holes dug deep underground. The water is warmed by the geothermal energy underground and brings the warmth aboveground to the building. Geothermal heat pumps can be used to heat houses, sidewalks, and even parking lots.

Another way to use geothermal energy is with steam. In some areas of the world, there is underground steam that naturally rises to the surface. The steam can be piped straight to a power plant. However, in other parts of the world, the ground is dry. Water must be injected underground to create steam. When the steam comes to the surface, it is used to turn a generator and create electricity.

In Iceland, there are large reservoirs of underground water. Almost 90 percent of people in Iceland use geothermal as an energy source to heat their homes and businesses.

Advantages and Disadvantages An advantage of geothermal energy is that it is clean. It does not require any fuel or emit any harmful pollutants into the air.

Geothermal energy is only avaiable in certain parts of the world. Another disadvantage of using geothermal energy is that in areas of the world where there is only dry heat underground, large quantities of freshwater are used to make steam. There may not be a lot of freshwater. People need water for drinking, cooking, and bathing.

Biomass Energy

Biomass is any material that comes from plants or microorganisms that were recently living. Plants create energy from the sun through photosynthesis . This energy is stored in the plants even after they die.

Trees, branches, scraps of bark, and recycled paper are common sources of biomass energy. Manure, garbage, and crops , such as corn, soy, and sugar cane, can also be used as biomass feedstocks .

We get energy from biomass by burning it. Wood chips, manure, and garbage are dried out and compressed into squares called “briquettes.” These briquettes are so dry that they do not absorb water. They can be stored and burned to create heat or generate electricity.

Biomass can also be converted into biofuel . Biofuels are mixed with regular gasoline and can be used to power cars and trucks. Biofuels release less harmful pollutants than pure gasoline.

Advantages and Disadvantages A major advantage of biomass is that it can be stored and then used when it is needed.

Growing crops for biofuels, however, requires large amounts of land and pesticides . Land could be used for food instead of biofuels. Some pesticides could pollute the air and water.

Biomass energy can also be a nonrenewable energy source. Biomass energy relies on biomass feedstocks—plants that are processed and burned to create electricity. Biomass feedstocks can include crops, such as corn or soy, as well as wood. If people do not replant biomass feedstocks as fast as they use them, biomass energy becomes a non-renewable energy source.

Hydroelectric Energy

Hydroelectric energy is made by flowing water. Most hydroelectric power plants are located on large dams , which control the flow of a river.

Dams block the river and create an artificial lake, or reservoir. A controlled amount of water is forced through tunnels in the dam. As water flows through the tunnels, it turns huge turbines and generates electricity.

Advantages and Disadvantages Hydroelectric energy is fairly inexpensive to harness. Dams do not need to be complex, and the resources to build them are not difficult to obtain. Rivers flow all over the world, so the energy source is available to millions of people.

Hydroelectric energy is also fairly reliable. Engineers control the flow of water through the dam, so the flow does not depend on the weather (the way solar and wind energies do).

However, hydroelectric power plants are damaging to the environment. When a river is dammed, it creates a large lake behind the dam. This lake (sometimes called a reservoir) drowns the original river habitat deep underwater. Sometimes, people build dams that can drown entire towns underwater. The people who live in the town or village must move to a new area.

Hydroelectric power plants don’t work for a very long time: Some can only supply power for 20 or 30 years. Silt , or dirt from a riverbed, builds up behind the dam and slows the flow of water.

Other Renewable Energy Sources

Scientists and engineers are constantly working to harness other renewable energy sources. Three of the most promising are tidal energy , wave energy , and algal (or algae) fuel.

Tidal energy harnesses the power of ocean tides to generate electricity. Some tidal energy projects use the moving tides to turn the blades of a turbine. Other projects use small dams to continually fill reservoirs at high tide and slowly release the water (and turn turbines) at low tide.

Wave energy harnesses waves from the ocean, lakes, or rivers. Some wave energy projects use the same equipment that tidal energy projects do—dams and standing turbines. Other wave energy projects float directly on waves. The water’s constant movement over and through these floating pieces of equipment turns turbines and creates electricity.

Algal fuel is a type of biomass energy that uses the unique chemicals in seaweed to create a clean and renewable biofuel. Algal fuel does not need the acres of cropland that other biofuel feedstocks do.

Renewable Nations

These nations (or groups of nations) produce the most energy using renewable resources. Many of them are also the leading producers of nonrenewable energy: China, European Union, United States, Brazil, and Canada

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Related Resources

• ENVIRONMENT

Renewable energy, explained

Solar, wind, hydroelectric, biomass, and geothermal power can provide energy without the planet-warming effects of fossil fuels.

In any discussion about climate change , renewable energy usually tops the list of changes the world can implement to stave off the worst effects of rising temperatures. That's because renewable energy sources such as solar and wind don't emit carbon dioxide and other greenhouse gases that contribute to global warming .

Clean energy has far more to recommend it than just being "green." The growing sector creates jobs , makes electric grids more resilient, expands energy access in developing countries, and helps lower energy bills. All of those factors have contributed to a renewable energy renaissance in recent years, with wind and solar setting new records for electricity generation .

For the past 150 years or so, humans have relied heavily on coal, oil, and other fossil fuels to power everything from light bulbs to cars to factories. Fossil fuels are embedded in nearly everything we do, and as a result, the greenhouse gases released from the burning of those fuels have reached historically high levels .

As greenhouse gases trap heat in the atmosphere that would otherwise escape into space, average temperatures on the surface are rising . Global warming is one symptom of climate change, the term scientists now prefer to describe the complex shifts affecting our planet’s weather and climate systems. Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas , and a range of other impacts .

Of course, renewables—like any source of energy—have their own trade-offs and associated debates. One of them centers on the definition of renewable energy. Strictly speaking, renewable energy is just what you might think: perpetually available, or as the U.S. Energy Information Administration puts it, " virtually inexhaustible ." But "renewable" doesn't necessarily mean sustainable, as opponents of corn-based ethanol or large hydropower dams often argue. It also doesn't encompass other low- or zero-emissions resources that have their own advocates, including energy efficiency and nuclear power.

Types of renewable energy sources

Hydropower: For centuries, people have harnessed the energy of river currents, using dams to control water flow. Hydropower is the world's biggest source of renewable energy by far, with China, Brazil, Canada, the U.S., and Russia the leading hydropower producers . While hydropower is theoretically a clean energy source replenished by rain and snow, it also has several drawbacks.

For Hungry Minds

Large dams can disrupt river ecosystems and surrounding communities , harming wildlife and displacing residents. Hydropower generation is vulnerable to silt buildup, which can compromise capacity and harm equipment. Drought can also cause problems. In the western U.S., carbon dioxide emissions over a 15-year period were 100 megatons higher than they normally would have been, according to a 2018 study , as utilities turned to coal and gas to replace hydropower lost to drought. Even hydropower at full capacity bears its own emissions problems, as decaying organic material in reservoirs releases methane.

Dams aren't the only way to use water for power: Tidal and wave energy projects around the world aim to capture the ocean's natural rhythms. Marine energy projects currently generate an estimated 500 megawatts of power —less than one percent of all renewables—but the potential is far greater. Programs like Scotland’s Saltire Prize have encouraged innovation in this area.

Wind: Harnessing the wind as a source of energy started more than 7,000 years ago . Now, electricity-generating wind turbines are proliferating around the globe, and China, the U.S., and Germany are the leading wind energy producers. From 2001 to 2017 , cumulative wind capacity around the world increased to more than 539,000 megawatts from 23,900 mw—more than 22 fold.

Some people may object to how wind turbines look on the horizon and to how they sound, but wind energy, whose prices are declining , is proving too valuable a resource to deny. While most wind power comes from onshore turbines, offshore projects are appearing too, with the most in the U.K. and Germany. The first U.S. offshore wind farm opened in 2016 in Rhode Island, and other offshore projects are gaining momentum . Another problem with wind turbines is that they’re a danger for birds and bats, killing hundreds of thousands annually , not as many as from glass collisions and other threats like habitat loss and invasive species, but enough that engineers are working on solutions to make them safer for flying wildlife.

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Solar: From home rooftops to utility-scale farms, solar power is reshaping energy markets around the world. In the decade from 2007 and 2017 the world's total installed energy capacity from photovoltaic panels increased a whopping 4,300 percent .

In addition to solar panels, which convert the sun's light to electricity, concentrating solar power (CSP) plants use mirrors to concentrate the sun's heat, deriving thermal energy instead. China, Japan, and the U.S. are leading the solar transformation, but solar still has a long way to go, accounting for around two percent of the total electricity generated in the U.S. in 2017. Solar thermal energy is also being used worldwide for hot water, heating, and cooling.

Biomass: Biomass energy includes biofuels such as ethanol and biodiesel , wood and wood waste, biogas from landfills, and municipal solid waste. Like solar power, biomass is a flexible energy source, able to fuel vehicles, heat buildings, and produce electricity. But biomass can raise thorny issues.

Critics of corn-based ethanol , for example, say it competes with the food market for corn and supports the same harmful agricultural practices that have led to toxic algae blooms and other environmental hazards. Similarly, debates have erupted over whether it's a good idea to ship wood pellets from U.S. forests over to Europe so that it can be burned for electricity. Meanwhile, scientists and companies are working on ways to more efficiently convert corn stover , wastewater sludge , and other biomass sources into energy, aiming to extract value from material that would otherwise go to waste.

Geothermal: Used for thousands of years in some countries for cooking and heating, geothermal energy is derived from the Earth’s internal heat . On a large scale, underground reservoirs of steam and hot water can be tapped through wells that can go a mile deep or more to generate electricity. On a smaller scale, some buildings have geothermal heat pumps that use temperature differences several feet below ground for heating and cooling. Unlike solar and wind energy, geothermal energy is always available, but it has side effects that need to be managed, such as the rotten egg smell that can accompany released hydrogen sulfide.

Ways to boost renewable energy

Cities, states, and federal governments around the world are instituting policies aimed at increasing renewable energy. At least 29 U.S. states have set renewable portfolio standards —policies that mandate a certain percentage of energy from renewable sources, More than 100 cities worldwide now boast at least 70 percent renewable energy, and still others are making commitments to reach 100 percent . Other policies that could encourage renewable energy growth include carbon pricing, fuel economy standards, and building efficiency standards. Corporations are making a difference too, purchasing record amounts of renewable power in 2018.

Wonder whether your state could ever be powered by 100 percent renewables? No matter where you live, scientist Mark Jacobson believes it's possible. That vision is laid out here , and while his analysis is not without critics , it punctuates a reality with which the world must now reckon. Even without climate change, fossil fuels are a finite resource, and if we want our lease on the planet to be renewed, our energy will have to be renewable.

Related Topics

• SUSTAINABILITY
• RENEWABLE ENERGY
• GEOTHERMAL ENERGY
• SOLAR POWER
• HYDROELECTRIC POWER
• CLIMATE CHANGE

Activists fear a new threat to biodiversity—renewable energy

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What is renewable energy?

Renewable energy is energy derived from natural sources that are replenished at a higher rate than they are consumed. Sunlight and wind, for example, are such sources that are constantly being replenished. Renewable energy sources are plentiful and all around us.

Fossil fuels - coal, oil and gas - on the other hand, are non-renewable resources that take hundreds of millions of years to form. Fossil fuels, when burned to produce energy, cause harmful greenhouse gas emissions, such as carbon dioxide.

Generating renewable energy creates far lower emissions than burning fossil fuels. Transitioning from fossil fuels, which currently account for the lion’s share of emissions, to renewable energy is key to addressing the climate crisis.

Renewables are now cheaper in most countries, and generate three times more jobs than fossil fuels.

Here are a few common sources of renewable energy:

SOLAR ENERGY

Solar energy is the most abundant of all energy resources and can even be harnessed in cloudy weather. The rate at which solar energy is intercepted by the Earth is about 10,000 times greater than the rate at which humankind consumes energy.

Solar technologies can deliver heat, cooling, natural lighting, electricity, and fuels for a host of applications. Solar technologies convert sunlight into electrical energy either through photovoltaic panels or through mirrors that concentrate solar radiation.

Although not all countries are equally endowed with solar energy, a significant contribution to the energy mix from direct solar energy is possible for every country.

The cost of manufacturing solar panels has plummeted dramatically in the last decade, making them not only affordable but often the cheapest form of electricity. Solar panels have a lifespan of roughly 30 years , and come in variety of shades depending on the type of material used in manufacturing.

WIND ENERGY

Wind energy harnesses the kinetic energy of moving air by using large wind turbines located on land (onshore) or in sea- or freshwater (offshore). Wind energy has been used for millennia, but onshore and offshore wind energy technologies have evolved over the last few years to maximize the electricity produced - with taller turbines and larger rotor diameters.

Though average wind speeds vary considerably by location, the world’s technical potential for wind energy exceeds global electricity production, and ample potential exists in most regions of the world to enable significant wind energy deployment.

Many parts of the world have strong wind speeds, but the best locations for generating wind power are sometimes remote ones. Offshore wind power offers t remendous potential .

GEOTHERMAL ENERGY

Geothermal energy utilizes the accessible thermal energy from the Earth’s interior. Heat is extracted from geothermal reservoirs using wells or other means.

Reservoirs that are naturally sufficiently hot and permeable are called hydrothermal reservoirs, whereas reservoirs that are sufficiently hot but that are improved with hydraulic stimulation are called enhanced geothermal systems.

Once at the surface, fluids of various temperatures can be used to generate electricity. The technology for electricity generation from hydrothermal reservoirs is mature and reliable, and has been operating for more than 100 years .

Hydropower harnesses the energy of water moving from higher to lower elevations. It can be generated from reservoirs and rivers. Reservoir hydropower plants rely on stored water in a reservoir, while run-of-river hydropower plants harness energy from the available flow of the river.

Hydropower reservoirs often have multiple uses - providing drinking water, water for irrigation, flood and drought control, navigation services, as well as energy supply.

Hydropower currently is the largest source of renewable energy in the electricity sector. It relies on generally stable rainfall patterns, and can be negatively impacted by climate-induced droughts or changes to ecosystems which impact rainfall patterns.

The infrastructure needed to create hydropower can also impact on ecosystems in adverse ways. For this reason, many consider small-scale hydro a more environmentally-friendly option , and especially suitable for communities in remote locations.

OCEAN ENERGY

Ocean energy derives from technologies that use the kinetic and thermal energy of seawater - waves or currents for instance -  to produce electricity or heat.

Ocean energy systems are still at an early stage of development, with a number of prototype wave and tidal current devices being explored. The theoretical potential for ocean energy easily exceeds present human energy requirements.

Bioenergy is produced from a variety of organic materials, called biomass, such as wood, charcoal, dung and other manures for heat and power production, and agricultural crops for liquid biofuels. Most biomass is used in rural areas for cooking, lighting and space heating, generally by poorer populations in developing countries.

Modern biomass systems include dedicated crops or trees, residues from agriculture and forestry, and various organic waste streams.

Energy created by burning biomass creates greenhouse gas emissions, but at lower levels than burning fossil fuels like coal, oil or gas. However, bioenergy should only be used in limited applications, given potential negative environmental impacts related to large-scale increases in forest and bioenergy plantations, and resulting deforestation and land-use change.

For more information on renewable sources of energy, please check out the following websites:

International Renewable Energy Agency | Renewables

International Energy Agency | Renewables

Intergovernmental Panel on Climate Change | Renewable Sources of Energy

UN Environment Programme | Roadmap to a Carbon-Free Future

Sustainable Energy for All | Renewable Energy

Renewable energy – powering a safer future

What is renewable energy and why does it matter? Learn more about why the shift to renewables is our only hope for a brighter and safer world.

Five ways to jump-start the renewable energy transition now

UN Secretary-General outlines five critical actions the world needs to prioritize now to speed up the global shift to renewable energy.

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Essay on Sources of Energy

Students are often asked to write an essay on Sources of Energy in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Sources of Energy

Introduction.

Energy is vital for our daily life. It powers our homes, schools, and cities. Energy comes from different sources, mainly classified into two categories: renewable and non-renewable.

Non-Renewable Energy

Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes. Examples include oil, natural gas, and coal. These sources are often used to generate electricity.

Renewable Energy

Renewable energy is from sources that never run out or are replenished quickly. Sunlight, wind, water, and geothermal heat are examples. These sources are environmentally friendly but require technology to harness.

Understanding energy sources helps us make informed choices. It’s important to support renewable energy for a sustainable future.

Also check:

• 10 Lines on Sources of Energy

250 Words Essay on Sources of Energy

Energy is the driving force behind all natural and artificial phenomena. It is an indispensable resource in our daily lives, powering our homes, industries, and transportation. The sources of energy can be broadly classified into two categories: renewable and non-renewable.

Non-renewable Energy Sources

Non-renewable energy sources are finite and will eventually deplete. They include fossil fuels such as coal, oil, and natural gas. These energy sources are primarily used for electricity generation and transportation. However, their usage results in harmful environmental impacts, including air pollution and climate change, due to the emission of greenhouse gases.

Renewable Energy Sources

Renewable energy sources, on the other hand, are inexhaustible and can be replenished naturally. They include solar, wind, hydro, geothermal, and biomass energy. Solar energy, harnessed through photovoltaic cells, is a clean and abundant source. Wind energy, captured by wind turbines, is another potent source, especially in coastal and high-altitude regions.

Hydro energy, derived from the kinetic energy of flowing or falling water, is a dominant renewable source, while geothermal energy, obtained from the Earth’s internal heat, is reliable and consistent. Biomass energy, generated from organic materials, can be a sustainable option if managed responsibly.

The transition from non-renewable to renewable energy sources is crucial for sustainable development. While non-renewable sources have been the backbone of our energy infrastructure, their environmental impacts necessitate a shift towards cleaner, renewable sources. This transition is not only an environmental imperative but also an opportunity for economic growth and energy security.

500 Words Essay on Sources of Energy

Energy is the backbone of all human activities, powering everything from our homes and industries to our transportation systems. The sources of energy we use are diverse and each has its own advantages and disadvantages. They can broadly be classified into two categories: renewable and non-renewable energy sources.

Non-Renewable Energy Sources

Non-renewable energy sources are those that do not replenish in a short time. They include fossil fuels such as coal, oil, and natural gas. These energy sources are formed over millions of years from the remains of plants and animals. They are finite and their extraction and use lead to environmental pollution.

Coal, for instance, is used to generate electricity and in industrial processes requiring heat. Its extraction, however, often leads to environmental degradation and health hazards. Oil is used in transportation and manufacturing, but its extraction can lead to oil spills causing severe environmental damage. Natural gas, although cleaner than coal and oil, is still a major contributor to greenhouse gas emissions.

Renewable energy sources are those that can be replenished naturally in a short time. They include solar, wind, hydro, geothermal, and biomass energy. These sources are considered environmentally friendly as they produce little to no greenhouse gases.

Solar energy harnesses the power of the sun and converts it into electricity. It’s a clean, abundant source of energy, but its efficiency is affected by weather conditions and geographical location. Wind energy converts the kinetic energy of wind into electricity. It’s a clean and renewable source, but its effectiveness is dependent on wind speed and direction.

Hydropower uses the energy of flowing or falling water to generate electricity. It’s renewable and produces a significant amount of electricity, but it can disrupt aquatic ecosystems and requires significant infrastructure. Geothermal energy harnesses the heat from the earth’s crust to generate electricity. It’s a reliable and constant source of energy but its extraction can cause land instability.

Biomass energy comes from organic materials like plant and animal waste. It’s renewable, but its use can lead to deforestation and it produces some greenhouse gases.

The world’s energy needs are diverse and complex. Non-renewable energy sources have been the mainstay of our energy systems, but their environmental impact and finite nature necessitate a shift towards renewable energy sources. However, these too have their challenges. The future of energy therefore lies in a balanced mix of different energy sources, improved energy efficiency, and technological innovations that mitigate the downsides of each source. As we move towards a sustainable future, the understanding and exploration of these energy sources become more crucial than ever.

That’s it! I hope the essay helped you.

If you’re looking for more, here are essays on other interesting topics:

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• Clean energy
• The advantages and disadvan...

The advantages and disadvantages of renewable energy

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As we move toward a zero-carbon future, wind power, geothermal energy, solar energy, hydropower, tidal energy, hydrogen, and other renewable technologies are becoming widely popular energy sources worldwide. Countries, corporations, and individuals are adopting clean energy for several great benefits, from reduced air pollution to financial savings. In this article, we’ll dive into some of the advantages and disadvantages of renewable energy .

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Here are some of the most important pros and cons of using clean, renewable energy:

Advantages of renewable energy

Renewable energy has multiple advantages over fossil fuels. Here are some of the top benefits of using an alternative energy source:

Renewable energy won’t run out.

Renewable energy has lower maintenance requirements.

Renewables save money.

Renewable energy has numerous environmental benefits.

Renewables lower reliance on foreign energy sources.

Renewable energy leads to cleaner water and air.

Renewable energy creates jobs.

Renewable energy can cut down on waste.

1. Renewable energy won’t run out

Renewable energy technologies use resources straight from the environment to generate power. These energy sources include sunshine, wind, tides, and biomass. Renewable resources won’t run out, which cannot be said for many types of fossil fuels – as we use fossil fuel resources, they will be increasingly difficult to obtain, likely driving up both the cost and environmental impact of extraction.

2. Maintenance requirements are lower for renewable energy

Renewable energy systems usually require less overall maintenance than generators that use traditional fuel sources. This is because generating technology like solar panels and wind turbines either have few or no moving parts and don’t rely on flammable, combustible fuel sources to operate. Fewer maintenance requirements translate to more time and money saved.

3. Renewables save money

Using renewable energy can help you save money long term. Not only will you save on maintenance costs but also on operating costs. You don't have to pay to refuel when you’re using a technology that generates power from the sun, wind, steam, or natural processes. The amount of money you will save using renewable energy can vary depending on several factors, including the technology itself. In most cases, transitioning to renewable energy means anywhere from hundreds to thousands of dollars in savings—find out how much you can save by switching to solar energy .

4. Renewable energy has numerous environmental benefits

Renewable energy generation sources lead to lower greenhouse gas emissions than traditional fuel sources like natural gas. This means a smaller carbon footprint and an overall positive impact on the natural environment . During the combustion process, fossil fuels emit high amounts of greenhouse gases, which have been proven to exacerbate climate change, which in turn causes rising global temperatures and higher frequencies of extreme weather events.

The use of fossil fuels emits greenhouse gases and other harmful pollutants that lead to respiratory and cardiac health issues . With renewable energy, you’re helping decrease these pollutants' prevalence and contributing to a healthier atmosphere.

5. Renewables lower reliance on foreign energy sources

With renewable energy technologies, you can produce energy locally. The higher the amount of our energy use is renewable, the less we’ll rely on imported energy, and the more we’ll contribute to U.S. energy independence. Renewable energy sources can help us minimize the geo-political risks associated with fossil fuels, from trade disputes to political instability to pricing wars, which are often rooted in access to oil.

6. Renewable energy leads to cleaner water and air

When you burn fossil fuels to generate electricity, it contaminates the air and water we use. For example, coal power stations release high volumes of carbon dioxide, nitrous oxide, and harmful toxins like mercury, lead, and sulfur dioxide. Health problems from ingesting these elements can be dangerous and even fatal. Investing in renewable energy is a great way to work against these risks, as renewables have a far lower negative impact on our air and water. 

The use of fossil fuels emits greenhouse gases and other harmful pollutants that lead to respiratory and cardiac health issues . With renewable energy, you’re helping decrease these pollutants' prevalence and contributing to a healthier environment.

7. Renewable energy creates new jobs 

While the U.S. shifts its focus to combat global warming, we’re setting ambitious carbon-reduction goals that require labor to get the job done. Today, the renewable energy sector employs three times as many people as fossil fuels in the U.S. That number is expected to rise over the next few years—and as a plus, these jobs tend to pay above average wages, making it a desirable career option and an overall economic boom. 

8. Renewable energy can help solve our waste problem

Specifically, biomass energy can offer a significant benefit in this way. Biomass generators consume used organic products like vegetable oil, corn and soybean byproducts, and even algae to generate energy. Because of this, using biomass as an energy source can reduce the amount of waste that goes into landfills, which helps cut down on carbon emissions and environmental contamination.

Disadvantages of renewable energy

Renewable energy has many benefits, but it’s not always sunny when it comes to renewable energy. Here are some cons of renewable energy when compared to traditional fuel sources:

Renewable energy has high upfront costs.

Renewable energy is intermittent.

Renewables have storage capabilities.

Renewable energy sources have geographic limitations.

Renewables aren’t always 100% carbon-free.

1. Higher upfront cost

While you can save money using renewable energy, the technologies are typically more expensive upfront than traditional energy generators. To combat this, financial incentives such as tax credits and rebates are available to help alleviate your initial costs of renewable technology.

2. Intermittency

Though renewable energy resources are available around the world, many of these resources aren’t available 24/7, year-round. Some days may be windier than others, the sun doesn’t shine at night, and droughts may occur for periods. Unpredictable weather events can disrupt these technologies, and the amount of energy we can get from renewable power sources can be inconsistent. Fossil fuels are not intermittent, and power plants can be turned on or off at any time to provide an energy supply. Wondering if you should make the switch to renewables? Find out if an energy source like solar power is a good fit for you . 

3. Storage capabilities

Because of the intermittency of some renewable energy sources, there’s a high need for energy storage. Storage technologies are available but can be expensive, especially for large-scale renewable energy plants. It’s worth noting that energy storage capacity is growing as the technology progresses, and batteries are becoming more affordable as time passes.

4. Geographic limitations

The United States has a diverse geography with varying climates, topographies, vegetation, etc. This creates a beautiful melting pot of landscapes but also means that some geographies are more suitable for renewable technologies than others. For example, a large property in a rural area with open space may be an excellent place for a residential wind farm or a large-scale solar farm. At the same time, a townhome in a city covered in shade from taller buildings wouldn’t be able to reap the benefits of either technology. There are other options if your property isn’t suitable for a personal renewable energy technology. If you’re interested in solar but don’t have a sunny property, you can often still benefit from renewable energy by purchasing green power or enrolling in a community solar option .

5. Not 100% carbon-free

Although solar panels and other forms of renewable energy drastically reduce carbon emissions, these resources aren’t always completely clean. The manufacturing, transportation, and installation of renewable energy, like wind turbines, can create a carbon footprint since they’re usually produced in factories powered by fossil fuels —not to mention the diesel and gasoline needed to fuel the transport trucks. As the U.S. becomes more and more electrified – from solar panels on factories to electric transport trucks – carbon emissions associated with solar will continue to decrease.

6. Supply chain constraints

Renewables must have an effective distribution network created to transfer the energy where it’s needed on a large scale. These networks need non-renewable fuels to be generated, which offsets the benefits of renewable energy for a bit until it’s paid back. Additionally, politics can play a factor in installing renewable energy if it’s not a priority among local governments.

Types of renewable energy sources

There are a few types of renewable sources we can use for energy production: 

Wind energy leverages the power of wind motion to generate electricity created by the uneven heating of the Earth’s surface. 

Solar power uses energy from the sun to generate electricity and heat.

Hydropower utilizes fast-moving water to spin turbines and generate electricity. This is also known as hydroelectric power or hydroelectricity.

Biomass generates electricity from organic plant matter.

Geothermal energy leverages heat from inside the earth to generate electricity.

Tidal produces electricity with special generators that leverage the surges of the ocean created during rising and falling tides. Hydrogen: utilized as fuel and electricity when separated from other elements like oxygen.

Nuclear energy , while not technically renewable, is often lumped in with the abovementioned sources. Nuclear power has the potential to provide electricity generation on a massive scale with zero emissions, making it an intriguing part of our energy future.

Renewable energy has more benefits than drawbacks

When it comes to renewable energy, the positives outweigh the negatives. Transitioning to renewables on a personal, corporate, or governmental level will help you save money and promote a cleaner, healthier environment for the future.

Installing solar panels is one of the easiest ways to go green. By signing up on the EnergySage Solar Marketplace , you can compare multiple quotes from local, pre-screened installers to see what solar costs and savings for your property. The quotes will also include estimates of the amount of carbon dioxide emissions you will offset over 20 years and what this equates to in both trees planted and gallons of gasoline burned.

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• Natural Sources Of Energy

Sources of Energy

The sun is the main source of energy on Earth. Other energy sources include coal, geothermal energy, wind energy, biomass, petrol, nuclear energy, and many more. Energy is classified into various types based on sustainability as renewable sources of energy and non-renewable sources of energy.

What Is Energy?

The classical description of energy is the ability of a system to perform work, but as energy exists in so many forms, it is hard to find one comprehensive definition. It is the property of an object that can be transferred from one object to another or converted to different forms but cannot be created or destroyed. There are numerous sources of energy. In the next few sections, let us discuss the about different sources of energy in detail.

Sources Of Energy

Sources of energy can be classified into:

• Renewable Sources
• Non-renewable Sources

Renewable sources of energy are available plentiful in nature and are sustainable. These resources of energy can be naturally replenished and are safe for the environment.

Examples of renewable sources of energy are : Solar energy, geothermal energy, wind energy, biomass, hydropower and tidal energy.

A non-renewable resource is a natural resource that is found underneath the earth. These type of energy resources do not replenish at the same speed at which it is used. They take millions of years to replenish. The main examples of non-renewable resources are coal, oil and natural gas.

Examples of non-renewable sources of energy are: Natural gas, coal, petroleum, nuclear energy and hydrocarbon gas liquids.

Difference between Renewable and Non-renewable Sources of Energy

Natural sources of energy.

During the stone age, it was wood. During the iron age, we had coal. In the modern age, we have fossil fuels like petroleum and natural gas. So how do we choose the source of energy?

Good sources of energy should have the following qualities:

• Optimum heat production per unit of volume/mass used
• Easy to transport
• Least Polluting

Types of Natural Sources of Energy

There are two types of natural sources of energy classified by their popularity and use,

• Conventional Sources of Energy
• Non-Conventional Sources of Energy

Difference between Conventional and Non-conventional Sources of Energy

In this article, you learned about natural resources, energy sources, and what makes a good source of energy. Explore more such articles at BYJU’S, which provides detailed solutions to the questions of NCERT Book for the energy source so that one can compare their answers with the sample answers given for this chapter.

Frequently Asked Questions – FAQs

What sources of energy are renewable.

• Biomass energy
• Wind energy
• Tidal energy
• Hydro energy

What is the main source of energy in India?

What are the sources of energy in india.

Following are the sources of energy in India:

• Natural gas
• Thermal energy
• Mineral oil

Can any source of energy be pollution-free?

What are the advantages and disadvantages of wind power.

• There are no harmful gases released into the environment.
• It is a way for the generation of revenue in the local communities.
• It is one of the clean sources of energy.

Disadvantages:

• The storage of energy needs to be improved.
• The initial setup requires a lot of investment.
• Numerous lands will be used up.

List the examples of sources of energy

• Biofuel energy
• Geothermal energy
• Solar energy
• Nuclear energy

Watch the video and find out conservation measures we can take to save the natural resources depleting at an alarming rate.

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Nuclear Power in a Clean Energy System

About this report.

With nuclear power facing an uncertain future in many countries, the world risks a steep decline in its use in advanced economies that could result in billions of tonnes of additional carbon emissions. Some countries have opted out of nuclear power in light of concerns about safety and other issues. Many others, however, still see a role for nuclear in their energy transitions but are not doing enough to meet their goals.

The publication of the IEA's first report addressing nuclear power in nearly two decades brings this important topic back into the global energy debate.

Key findings

Nuclear power is the second-largest source of low-carbon electricity today.

Nuclear power is the second-largest source of low-carbon electricity today, with 452 operating reactors providing 2700 TWh of electricity in 2018, or 10% of global electricity supply.

In advanced economies, nuclear has long been the largest source of low-carbon electricity, providing 18% of supply in 2018. Yet nuclear is quickly losing ground. While 11.2 GW of new nuclear capacity was connected to power grids globally in 2018 – the highest total since 1990 – these additions were concentrated in China and Russia.

Global low-carbon power generation by source, 2018

Cumulative co2 emissions avoided by global nuclear power in selected countries, 1971-2018, an aging nuclear fleet.

In the absense of further lifetime extensions and new projects could result in an additional 4 billion tonnes of CO2 emissions, underlining the importance of the nuclear fleet to low-carbon energy transitions around the globe. In emerging and developing economies, particularly China, the nuclear fleet will provide low-carbon electricity for decades to come.

However the nuclear fleet in advanced economies is 35 years old on average and many plants are nearing the end of their designed lifetimes. Given their age, plants are beginning to close, with 25% of existing nuclear capacity in advanced economies expected to be shut down by 2025.

It is considerably cheaper to extend the life of a reactor than build a new plant, and costs of extensions are competitive with other clean energy options, including new solar PV and wind projects. Nevertheless they still represent a substantial capital investment. The estimated cost of extending the operational life of 1 GW of nuclear capacity for at least 10 years ranges from $500 million to just over $1 billion depending on the condition of the site.

However difficult market conditions are a barrier to lifetime extension investments. An extended period of low wholesale electricity prices in most advanced economies has sharply reduced or eliminated margins for many technologies, putting nuclear at risk of shutting down early if additional investments are needed. As such, the feasibility of extensions depends largely on domestic market conditions.

Age profile of nuclear power capacity in selected regions, 2019

United states, levelised cost of electricity in the united states, 2040, european union, levelised cost of electricity in the european union, 2040, levelised cost of electricity in japan, 2040, the nuclear fade case, nuclear capacity operating in selected advanced economies in the nuclear fade case, 2018-2040, wind and solar pv generation by scenario 2019-2040, policy recommendations.

In this context, countries that intend to retain the option of nuclear power should consider the following actions:

• Keep the option open:  Authorise lifetime extensions of existing nuclear plants for as long as safely possible. 
• Value dispatchability:  Design the electricity market in a way that properly values the system services needed to maintain electricity security, including capacity availability and frequency control services. Make sure that the providers of these services, including nuclear power plants, are compensated in a competitive and non-discriminatory manner.
• Value non-market benefits:  Establish a level playing field for nuclear power with other low-carbon energy sources in recognition of its environmental and energy security benefits and remunerate it accordingly.
• Update safety regulations:  Where necessary, update safety regulations in order to ensure the continued safe operation of nuclear plants. Where technically possible, this should include allowing flexible operation of nuclear power plants to supply ancillary services.
• Create a favourable financing framework:  Create risk management and financing frameworks that facilitate the mobilisation of capital for new and existing plants at an acceptable cost taking the risk profile and long time-horizons of nuclear projects into consideration.
• Support new construction:  Ensure that licensing processes do not lead to project delays and cost increases that are not justified by safety requirements.
• Support innovative new reactor designs:  Accelerate innovation in new reactor designs with lower capital costs and shorter lead times and technologies that improve the operating flexibility of nuclear power plants to facilitate the integration of growing wind and solar capacity into the electricity system.
• Maintain human capital:  Protect and develop the human capital and project management capabilities in nuclear engineering.

Executive summary

Nuclear power can play an important role in clean energy transitions.

Nuclear power today makes a significant contribution to electricity generation, providing 10% of global electricity supply in 2018.  In advanced economies 1 , nuclear power accounts for 18% of generation and is the largest low-carbon source of electricity. However, its share of global electricity supply has been declining in recent years. That has been driven by advanced economies, where nuclear fleets are ageing, additions of new capacity have dwindled to a trickle, and some plants built in the 1970s and 1980s have been retired. This has slowed the transition towards a clean electricity system. Despite the impressive growth of solar and wind power, the overall share of clean energy sources in total electricity supply in 2018, at 36%, was the same as it was 20 years earlier because of the decline in nuclear. Halting that slide will be vital to stepping up the pace of the decarbonisation of electricity supply.

A range of technologies, including nuclear power, will be needed for clean energy transitions around the world.  Global energy is increasingly based around electricity. That means the key to making energy systems clean is to turn the electricity sector from the largest producer of CO 2 emissions into a low-carbon source that reduces fossil fuel emissions in areas like transport, heating and industry. While renewables are expected to continue to lead, nuclear power can also play an important part along with fossil fuels using carbon capture, utilisation and storage. Countries envisaging a future role for nuclear account for the bulk of global energy demand and CO 2 emissions. But to achieve a trajectory consistent with sustainability targets – including international climate goals – the expansion of clean electricity would need to be three times faster than at present. It would require 85% of global electricity to come from clean sources by 2040, compared with just 36% today. Along with massive investments in efficiency and renewables, the trajectory would need an 80% increase in global nuclear power production by 2040.

Nuclear power plants contribute to electricity security in multiple ways.  Nuclear plants help to keep power grids stable. To a certain extent, they can adjust their operations to follow demand and supply shifts. As the share of variable renewables like wind and solar photovoltaics (PV) rises, the need for such services will increase. Nuclear plants can help to limit the impacts from seasonal fluctuations in output from renewables and bolster energy security by reducing dependence on imported fuels.

Lifetime extensions of nuclear power plants are crucial to getting the energy transition back on track

Policy and regulatory decisions remain critical to the fate of ageing reactors in advanced economies.  The average age of their nuclear fleets is 35 years. The European Union and the United States have the largest active nuclear fleets (over 100 gigawatts each), and they are also among the oldest: the average reactor is 35 years old in the European Union and 39 years old in the United States. The original design lifetime for operations was 40 years in most cases. Around one quarter of the current nuclear capacity in advanced economies is set to be shut down by 2025 – mainly because of policies to reduce nuclear’s role. The fate of the remaining capacity depends on decisions about lifetime extensions in the coming years. In the United States, for example, some 90 reactors have 60-year operating licenses, yet several have already been retired early and many more are at risk. In Europe, Japan and other advanced economies, extensions of plants’ lifetimes also face uncertain prospects.

Economic factors are also at play.  Lifetime extensions are considerably cheaper than new construction and are generally cost-competitive with other electricity generation technologies, including new wind and solar projects. However, they still need significant investment to replace and refurbish key components that enable plants to continue operating safely. Low wholesale electricity and carbon prices, together with new regulations on the use of water for cooling reactors, are making some plants in the United States financially unviable. In addition, markets and regulatory systems often penalise nuclear power by not pricing in its value as a clean energy source and its contribution to electricity security. As a result, most nuclear power plants in advanced economies are at risk of closing prematurely.

The hurdles to investment in new nuclear projects in advanced economies are daunting

What happens with plans to build new nuclear plants will significantly affect the chances of achieving clean energy transitions.  Preventing premature decommissioning and enabling longer extensions would reduce the need to ramp up renewables. But without new construction, nuclear power can only provide temporary support for the shift to cleaner energy systems. The biggest barrier to new nuclear construction is mobilising investment.  Plans to build new nuclear plants face concerns about competitiveness with other power generation technologies and the very large size of nuclear projects that require billions of dollars in upfront investment. Those doubts are especially strong in countries that have introduced competitive wholesale markets.

A number of challenges specific to the nature of nuclear power technology may prevent investment from going ahead.  The main obstacles relate to the sheer scale of investment and long lead times; the risk of construction problems, delays and cost overruns; and the possibility of future changes in policy or the electricity system itself. There have been long delays in completing advanced reactors that are still being built in Finland, France and the United States. They have turned out to cost far more than originally expected and dampened investor interest in new projects. For example, Korea has a much better record of completing construction of new projects on time and on budget, although the country plans to reduce its reliance on nuclear power.

Without nuclear investment, achieving a sustainable energy system will be much harder

A collapse in investment in existing and new nuclear plants in advanced economies would have implications for emissions, costs and energy security.  In the case where no further investments are made in advanced economies to extend the operating lifetime of existing nuclear power plants or to develop new projects, nuclear power capacity in those countries would decline by around two-thirds by 2040. Under the current policy ambitions of governments, while renewable investment would continue to grow, gas and, to a lesser extent, coal would play significant roles in replacing nuclear. This would further increase the importance of gas for countries’ electricity security. Cumulative CO 2 emissions would rise by 4 billion tonnes by 2040, adding to the already considerable difficulties of reaching emissions targets. Investment needs would increase by almost USD 340 billion as new power generation capacity and supporting grid infrastructure is built to offset retiring nuclear plants.

Achieving the clean energy transition with less nuclear power is possible but would require an extraordinary effort.  Policy makers and regulators would have to find ways to create the conditions to spur the necessary investment in other clean energy technologies. Advanced economies would face a sizeable shortfall of low-carbon electricity. Wind and solar PV would be the main sources called upon to replace nuclear, and their pace of growth would need to accelerate at an unprecedented rate. Over the past 20 years, wind and solar PV capacity has increased by about 580 GW in advanced economies. But in the next 20 years, nearly five times that much would need to be built to offset nuclear’s decline. For wind and solar PV to achieve that growth, various non-market barriers would need to be overcome such as public and social acceptance of the projects themselves and the associated expansion in network infrastructure. Nuclear power, meanwhile, can contribute to easing the technical difficulties of integrating renewables and lowering the cost of transforming the electricity system.

With nuclear power fading away, electricity systems become less flexible.  Options to offset this include new gas-fired power plants, increased storage (such as pumped storage, batteries or chemical technologies like hydrogen) and demand-side actions (in which consumers are encouraged to shift or lower their consumption in real time in response to price signals). Increasing interconnection with neighbouring systems would also provide additional flexibility, but its effectiveness diminishes when all systems in a region have very high shares of wind and solar PV.

Offsetting less nuclear power with more renewables would cost more

Taking nuclear out of the equation results in higher electricity prices for consumers.  A sharp decline in nuclear in advanced economies would mean a substantial increase in investment needs for other forms of power generation and the electricity network. Around USD 1.6 trillion in additional investment would be required in the electricity sector in advanced economies from 2018 to 2040. Despite recent declines in wind and solar costs, adding new renewable capacity requires considerably more capital investment than extending the lifetimes of existing nuclear reactors. The need to extend the transmission grid to connect new plants and upgrade existing lines to handle the extra power output also increases costs. The additional investment required in advanced economies would not be offset by savings in operational costs, as fuel costs for nuclear power are low, and operation and maintenance make up a minor portion of total electricity supply costs. Without widespread lifetime extensions or new projects, electricity supply costs would be close to USD 80 billion higher per year on average for advanced economies as a whole.

Strong policy support is needed to secure investment in existing and new nuclear plants

Countries that have kept the option of using nuclear power need to reform their policies to ensure competition on a level playing field.  They also need to address barriers to investment in lifetime extensions and new capacity. The focus should be on designing electricity markets in a way that values the clean energy and energy security attributes of low-carbon technologies, including nuclear power.

Securing investment in new nuclear plants would require more intrusive policy intervention given the very high cost of projects and unfavourable recent experiences in some countries.  Investment policies need to overcome financing barriers through a combination of long-term contracts, price guarantees and direct state investment.

Interest is rising in advanced nuclear technologies that suit private investment such as small modular reactors (SMRs).  This technology is still at the development stage. There is a case for governments to promote it through funding for research and development, public-private partnerships for venture capital and early deployment grants. Standardisation of reactor designs would be crucial to benefit from economies of scale in the manufacturing of SMRs.

Continued activity in the operation and development of nuclear technology is required to maintain skills and expertise.  The relatively slow pace of nuclear deployment in advanced economies in recent years means there is a risk of losing human capital and technical know-how. Maintaining human skills and industrial expertise should be a priority for countries that aim to continue relying on nuclear power.

The following recommendations are directed at countries that intend to retain the option of nuclear power. The IEA makes no recommendations to countries that have chosen not to use nuclear power in their clean energy transition and respects their choice to do so.

• Keep the option open:  Authorise lifetime extensions of existing nuclear plants for as long as safely possible.
• Value non-market benefits:  Establish a level playing field for nuclear power with other low carbon energy sources in recognition of its environmental and energy security benefits and remunerate it accordingly.
• Create an attractive financing framework:  Set up risk management and financing frameworks that can help mobilise capital for new and existing plants at an acceptable cost, taking the risk profile and long time horizons of nuclear projects into consideration.
• Support new construction:  Ensure that licensing processes do not lead to project delays and cost increases that are not justified by safety requirements. Support standardisation and enable learning-by-doing across the industry.
• Support innovative new reactor designs:  Accelerate innovation in new reactor designs, such as small modular reactors (SMRs), with lower capital costs and shorter lead times and technologies that improve the operating flexibility of nuclear power plants to facilitate the integration of growing wind and solar capacity into the electricity system.

Advanced economies consist of Australia, Canada, Chile, the 28 members of the European Union, Iceland, Israel, Japan, Korea, Mexico, New Zealand, Norway, Switzerland, Turkey and the United States.

Reference 1

Cite report.

IEA (2019), Nuclear Power in a Clean Energy System , IEA, Paris https://www.iea.org/reports/nuclear-power-in-a-clean-energy-system, Licence: CC BY 4.0

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This Is the Future: Essay on Renewable Energy

Today the world population depends on nonrenewable energy resources. With the constantly growing demand for energy, natural gas, coal, and oil get used up and cannot replenish themselves. 

Aside from limited supply, heavy reliance on fossil fuels causes planetary-scale damage. Sea levels are rising. Heat-trapping carbon dioxide increased the warming effect by 45% from 1990 to 2019. The only way to tackle the crisis is to start the transition to renewable energy now. 

What is renewable energy? It is energy that comes from replenishable natural resources like sunlight, wind, thermal energy, moving water, and organic materials. Renewable resources do not run out. They are cost-efficient and renew faster than they are consumed. How does renewable energy save money? It creates new jobs, supports economic growth, and decreases inequitable fossil fuel subsidies. 

At the current rates of production, some fossil fuels will not even last another century. This is why the future depends on reliable and eco-friendly resources. This renewable energy essay examines the types and benefits of renewable energy and its role in creating a sustainable future.

Top 5 Types of Renewable Energy: The Apollo Alliance Rankings

There are many natural resources that can provide people with clean energy. To make a list of the five most booming types of renewable energy on the market today, this energy essay uses data gathered by the Apollo Alliance. It is a project that aims to revolutionize the energy sector of the US with a focus on clean energy. 

The Apollo Alliance unites businesses, community leaders, and environmental experts to support the transition to more sustainable and efficient living. Their expert opinion helped to compile information about the most common and cost-competitive sources of renewable energy. However, if you want to get some more in-depth research, you can entrust it to an essay writer . Here’s a quick overview of renewable energy resources that have a huge potential to substitute fossil fuels. 

Solar Renewable Energy

The most abundant and practically endless resource is solar energy. It can be turned into electricity by photovoltaic systems that convert radiant energy captured from sunlight. Solar farms could generate enough energy for thousands of homes.

An endless supply is the main benefit of solar energy. The rate at which the Earth receives it is 10,000 times greater than people can consume it, as a paper writer points out based on their analysis of research findings. It can substitute fossil fuels and deliver people electricity, hot water, cooling, heat, etc. 

The upfront investment in solar systems is rather expensive. This is one of the primary limitations that prevent businesses and households from switching to this energy source at once. However, the conclusion of solar energy is still favorable. In the long run, it can significantly decrease energy costs. Besides, solar panels are gradually becoming more affordable to manufacture and adopt, even at an individual level. 

Wind Renewable Energy

Another clean energy source is wind. Wind farms use the kinetic energy of wind flow to convert it into electricity. The Appolo Alliance notes that, unlike solar farms, they can’t be placed in any location. To stay cost-competitive, wind farms should operate in windy areas. Although not all countries have the right conditions to use them on a large scale, wind farms might be introduced for some energy diversity. The technical potential for it is still tremendous. 

Wind energy is clean and safe for the environment. It does not pollute the atmosphere with any harmful products compared to nonrenewable energy resources. 

The investment in wind energy is also economically wise. If you examine the cost of this energy resource in an essay on renewable resources, you’ll see that wind farms can deliver electricity at a price lower than nonrenewable resources. Besides, since wind isn’t limited, its cost won’t be influenced by the imbalance of supply and demand.

Geothermal Renewable Energy

Natural renewable resources are all around us, even beneath the ground. Geothermal energy can be produced from the thermal energy from the Earth’s interior. Sometimes heat reaches the surface naturally, for example, in the form of geysers. But it can also be used by geothermal power plants. The Earth’s heat gets captured and converted to steam that turns a turbine. As a result, we get geothermal energy.

This source provides a significant energy supply while having low emissions and no significant footprint on land. A factsheet and essay on renewable resources state that geothermal plants will increase electricity production from 17 billion kWh in 2020 to 49.8 billion kWh in 2050.

However, this method is not without limitations. While writing a renewable resources essay, consider that geothermal energy can be accessed only in certain regions. Geological hotspots are off-limits as they are vulnerable to earthquakes. Yet, the quantity of geothermal resources is likely to grow as technology advances. 

Ocean Renewable Energy

The kinetic and thermal energy of the ocean is a robust resource. Ocean power systems rely on:

• Changes in sea level;
• Wave energy;
• Water surface temperatures;
• The energy released from seawater and freshwater mixing.

Ocean energy is more predictable compared to other resources. As estimated by EPRI, it has the potential to produce 2640 TWh/yr. However, an important point to consider in a renewable energy essay is that the kinetic energy of the ocean varies. Yet, since it is ruled by the moon’s gravity, the resource is plentiful and continues to be attractive for the energy industry. 

Wave energy systems are still developing. The Apollo energy corporation explores many prototypes. It is looking for the most reliable and robust solution that can function in the harsh ocean environment. 

Another limitation of ocean renewable energy is that it may cause disruptions to marine life. Although its emissions are minimal, the system requires large equipment to be installed in the ocean. 

Biomass Renewable Energy

Organic materials like wood and charcoal have been used for heating and lighting for centuries. There are a lot more types of biomass: from trees, cereal straws, and grass to processed waste. All of them can produce bioenergy. 

Biomass can be converted into energy through burning or using methane produced during the natural process of decomposition. In an essay on renewable sources of energy, the opponents of the method point out that biomass energy is associated with carbon dioxide emissions. Yet, the amount of released greenhouse gases is much lower compared to nonrenewable energy use. 

While biomass is a reliable source of energy, it is only suitable for limited applications. If used too extensively, it might lead to disruptions in biodiversity, a negative impact on land use, and deforestation. Still, Apollo energy includes biomass resources that become waste and decompose quickly anyway. These are organic materials like sawdust, chips from sawmills, stems, nut shells, etc. 

What Is the Apollo Alliance?

The Apollo Alliance is a coalition of business leaders, environmental organizations, labor unions, and foundations. They all unite their efforts in a single project to harness clean energy in new, innovative ways. 

Why Apollo? Similarly to President John F. Kennedy’s Apollo Project, Apollo energy is a strong visionary initiative. It is a dare, a challenge. The alliance calls for the integrity of science, research, technology, and the public to revolutionize the energy industry.

The project has a profound message. Apollo energy solutions are not only about the environment or energy. They are about building a new economy. The alliance gives hope to building a secure future for Americans. 

What is the mission of the Apollo Alliance? 

• Achieve energy independence with efficient and limitless resources of renewable energy.
• Pioneer innovation in the energy sector.
• Build education campaigns and communication to inspire new perceptions of energy. 
• Create new jobs.
• Reduce dependence on imported fossil fuels. 
• Build healthier and happier communities. 

The transformation of the industry will lead to planet-scale changes. The Apollo energy corporation can respond to the global environmental crisis and prevent climate change. 

Apollo renewable energy also has the potential to become a catalyst for social change. With more affordable energy and new jobs in the industry, people can bridge the inequality divide and build stronger communities. 

Why Renewable Energy Is Important for the Future

Renewable energy resources have an enormous potential to cover people’s energy needs on a global scale. Unlike fossil fuels, they are available in abundance and generate minimal to no emissions. 

The burning of fossil fuels caused a lot of environmental problems—from carbon dioxide emissions to ocean acidification. Research this issue in more detail with academic assistance from essay writer online . You can use it to write an essay on renewable sources of energy to explain the importance of change and its global impact. 

Despite all the damage people caused to the planet, there’s still hope to mitigate further repercussions. Every renewable energy essay adds to the existing body of knowledge we have today and advances research in the field. Here are the key advantages and disadvantages of alternative energy resources people should keep in mind. 

Advantage of Green Energy

The use of renewable energy resources has a number of benefits for the climate, human well-being, and economy:

• Renewable energy resources have little to no greenhouse gas emissions. Even if we take into account the manufacturing and recycling of the technologies involved, their impact on the environment is significantly lower compared to fossil fuels. 
• Renewable energy promotes self-sufficiency and reduces a country’s dependence on foreign fuel. According to a study, a 1% increase in the use of renewable energy increases economic growth by 0.21%. This gives socio-economic stability.
• Due to a lack of supply of fossil fuels and quick depletion of natural resources, prices for nonrenewable energy keep increasing. In contrast, green energy is limitless and can be produced locally. In the long run, this allows decreasing the cost of energy. 
• Unlike fossil fuels, renewable energy doesn’t emit air pollutants. This positively influences health and quality of life. 
• The emergence of green energy plants creates new jobs. Thus, Apollo energy solutions support the growth of local communities. By 2030, the transition to renewable energy is expected to generate 10.3 million new jobs. 
• Renewable energy allows decentralization of the industry. Communities get their independent sources of energy that are more flexible in terms of distribution. 
• Renewable energy supports equality. It has the potential to make energy more affordable to low-income countries and expand access to energy even in remote and less fortunate neighborhoods. 

Disadvantages of Non-Conventional Energy Sources

No technology is perfect. Renewable energy resources have certain drawbacks too: 

• The production of renewable energy depends on weather conditions. For example, wind farms could be effective only in certain locations where the weather conditions allow it. The weather also makes it so that renewable energy cannot be generated around the clock. 
• The initial cost of renewable energy technology is expensive. Both manufacturing and installation require significant investment. This is another disadvantage of renewable resources. It makes them unaffordable to a lot of businesses and unavailable for widespread individual use. In addition, the return on investment might not be immediate.
• Renewable energy technology takes up a lot of space. It may affect life in the communities where these clean energy farms are installed. They may also cause disruptions to wildlife in the areas. 
• One more limitation a renewable resources essay should consider is the current state of technology. While the potential of renewable energy resources is tremendous, the technology is still in its development phase. Therefore, renewable energy might not substitute fossil fuels overnight. There’s a need for more research, investment, and time to transition to renewable energy completely. Yet, some diversity of energy resources should be introduced as soon as possible. 
• Renewable energy resources have limited emissions, but they are not entirely pollution-free. The manufacturing process of equipment is associated with greenhouse gas emissions while, for example, the lifespan of a wind turbine is only 20 years. 

For high school seniors eyeing a future rich with innovative endeavors in renewable energy or other fields, it's crucial to seek financial support early on. Explore the top 10 scholarships for high school seniors to find the right fit that can propel you into a future where you can contribute to the renewable energy movement and beyond. Through such financial support, the road to making meaningful contributions to a sustainable future becomes a tangible reality.

Renewable energy unlocks the potential for humanity to have clean energy that is available in abundance. It leads us to economic growth, independence, and stability. With green energy, we can also reduce the impact of human activity on the environment and stop climate change before it’s too late. 

So what’s the conclusion of renewable energy? Transitioning to renewable energy resources might be challenging and expensive. However, most experts agree that the advantages of green energy outweigh any drawbacks. Besides, since technology is continuously evolving, we’ll be able to overcome most limitations in no time.

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Solar Energy Essay

500 words essay on solar energy.

Solar energy is the energy which the earth receives from the sun which converts into thermal or electrical energy. Moreover, solar energy influences the climate of the earth and weather to sustain life. It has great potential which we must use to our advantage fully. Through the solar energy essay, we will look at this in detail and know more about it carefully.

Importance of Solar Energy

Solar energy is very important as it is a clean and renewable source of energy. Thus, this means it will not damage the earth in any way. In addition, it is available on a daily basis. Similarly, it does not cause any kind of pollution.

As it is environment-friendly, it is very important in today’s world. It is so much better than other pollution sources of energies like fossil fuels and more. Further, it has low maintenance costs.

Solar panel systems do not require a lot of solar power energy. Moreover, they come with 5-10 years of warranty which is very beneficial. Most importantly, it reduces the cost of electricity bills.

In other words, we use it mostly for cooking and heating up our homes. Thus, it drops the utility bills cost and helps us save some extra money. Further, solar energy also has many possible applications.

A lot of communities and villages make use of solar energy to power their homes, offices and more. Further, we can use it in areas where there is no access to a power grid. For instance, distilling the water is Africa and powering the satellites in space.

Get the huge list of more than 500 Essay Topics and Ideas

Uses of Solar Energy

In today’s world, we use solar energy for a lot of things. Firstly, we use solar power for many things as small as calculators to as big as power plants which power the entire city. We use the most common solar power for small things.

For instance, many calculators use solar cells to operate, thus they never run out of batteries. Moreover, we also have some watches which run on solar cells. Similarly, there are also radios which run on solar cells.

Thus, you see so many things run on solar power. All satellites run on solar power otherwise they won’t be able to function. Moreover, large desalinization plants make use of solar power if there is little or no freshwater.

In addition, many countries have solar furnaces. We also use solar power commercially and residentially. You will find its uses in transportation service too. In fact, soon, solar powers will also be out on the streets.

Conclusion of Solar Energy Essay

To sum it up, solar energy is a cost-effective means of energy which is quite useful for people that have huge families. When we install solar panels, we can get solar energy which will reduce electricity costs and allow us to lead a sustainable lifestyle. Thus, we must all try to use it well to our advantage.

FAQ of Solar Energy Essay

Question 1: What is solar energy in simple words?

Answer 1: Solar energy is basically the transformation of heat, the energy which is derived from the sun. We have been using it for thousands of years in numerous different ways all over the world. The oldest uses of solar energy are for heating, cooking, and drying.

Question 2: What are the advantages of solar energy?

Answer 2: There are many advantages of solar energy. Firstly, it is a renewable source of energy which makes it healthy. Moreover, it also reduces the electricity bills of ours. After that, we can also use it for diverse applications. Further, it also has low maintenance costs.

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461 Energy Essay Topics to Write about & Examples

🔝 top 10 topics related to energy, 🏆 best energy topic ideas & essay examples, 👍 good energy essay topics, 📑 interesting topics to write about energy, 🔍 good research topics about energy.

• 🎓 Energy Writing Prompts

📌 Simple & Easy Energy Essay Titles

Welcome to our ultimate list of topics related to energy! Here, you will find solar energy essay topics, interesting titles for energy projects, writing ideas about environmentally friendly and renewable energy sources, research titles on trending issues, and more.

• The Economics of Energy
• Wind Energy for Clean Electricity
• Sustainable Alternative Energy Sources
• How Fossil Fuels Influence Climate Change
• Strategies for Reducing Energy Consumption
• Nuclear Energy’s Safety and Sustainability
• The Role of Solar Power in the Future
• Hydropower: Environmental Pros and Cons
• Energy Transition from Non-Renewable to Renewable Sources
• Smart Grid Technology and Other Ways of Energy Distribution
• Alternative Sources of Energy Essay Consequently, the government has been urged to reduce restrictions impeding the development of renewable sources of energy and increase funding of the same.
• Solar Energy Installation Project Management 0 Pilot solar energy project Managers will run a pilot project to determine the feasibility of the project. A number of resources will be required to complete the project.
• Renewable Energy Sources: Existence, Impacts and Trends It is important to note that about 20% of the world energy sources come from renewable sources. The management and maintenance of renewable energy production may be in the short run or long run.
• Solar Energy as an Alternative Source of Energy It is of essence to note that, with the depletion of fossil fuels, more emphasis is now being put on the use of solar energy as an alternate energy source.
• Grassland Ecosystem and the Energy Flow in the Ecosystem Apart from the leaves and foliages, the primary consumers in the grass land ecosystem can also feed on the roots and backs of trees.3.
• Energy Conservation: The Lab Experiment The motion of a pendulum is a good demonstration of mechanical energy conservation. However, gravity is a conservative force, which is why it does not cause any change to the total mechanical energy of the […]
• New Energy Drink Marketing Strategy The Mission of the company is to be a leader in the manufacturing and marketing of healthy, nutritious beverages in the USA and to satisfy consumers’ needs while at the same time enhancing the individual […]
• The Benefits of Renewable and Non-Renewable Energy This research paper seeks to describe renewable and non renewable energy sources, their effects on the environment and economic benefits.”Fossils fuels are one of the most widely used sources of energy”.
• Monster Energy Company’s Marketing Strategies In spite of applying all approaches to the market segmentation in order to promote the product, including demographic, geographic, behavioral, and psychographic segmentation, Monster Energy accentuates the use of demographic and behavioral analysis.
• Hydro Energy Advantages and Disadvantages Run off rivers This is the use of water speed in running rivers which is used to rotate turbines for electricity generation.
• Adopting Renewable Energies Proponents of fossil fuels assert that while alternative energy sources purport to be the solution to the problems that fossil fuels have caused, alternative energy sources can simply not cater for the huge energy needs […]
• Waste-to-Energy Conversion Efforts The EPA documents that once waste has been converted into energy through incineration, only 10% of the initial waste volume is recovered as ash to be disposed in the landfills. The cost of converting waste […]
• Energy Crisis in Pakistan At the present moment, the most common source of energy that is used in the world is electricity. In 2010, violent protests emerged in several parts of the nation, especially major cities of Pakistan in […]
• The Advantages and Disadvantages of Biomass Energy Biomass is widely known as a renewable source of energy, which is utilized in the production of electricity and other types of energy in most parts of the world.
• Conservation Of Energy The amount of kinetic energy in a body is affected by environmental factors and the state of surrounding bodies while potential energy is independent of the surroundings.
• Why Nuclear Energy Is Not Good? Even those who say net production is cost effective for unit of nuclear energy produced may not be saying the truth because most of these estimate forget that nuclear energy is recipient of many government […]
• Biofuel: Renewable Energy Type The purpose of this essay is to discuss this statement and evaluate its accuracy in accordance to the latest studies, as well as the pros and cons of biofuel in general.
• The Concept of Energy Wind is not only one of the most attractive sources of energy, but it also among the cleanest sources of renewable energy, and for these reasons, it is the fastest advancing energy technology in the […]
• Why People Should Donate Time, Money, Energy to a Particular Organization, Charity, or Cause Its vision is to have a world that is free from Alzheimer’s disease.”The Alzheimer’s Association is the leading, global voluntary health organization in Alzheimer’s care and support, and the largest private, nonprofit funder of Alzheimer’s […]
• Using Solar (PV) Energy to Generate Hydrogen Gas for Fuel Cells With the current technologies, an electrolyzer working at 100% efficiency needs 39 kWh of electricity to liberate 1 kg of hydrogen.
• Price Influence on Energy Drink Consumption Behavior The goal of the report is to explore the consumption behavior of customers in response to price changes. The understanding of the consumption behavior of customers plays a central role in the marketing of products.
• Energy and Momentum in the Daily Life Ke= mv2/2 From eq taking the negligible potential energy we have E t = Ke = mv2/2 Kinetic energy is therefore related to momentum in the above equation. As mentioned in the literature energy is […]
• Renewable Energy Ethical Question Despite the fact that the power of wind, sun, and water can be transformed into energy the great majority of people argue the importance of the renewable energy system implementation proving that the disadvantages should […]
• Virtual Water and Water-Energy-Food Nexus The content of the “real” water in the product is usually insignificant in comparison to the amount of used virtual water.
• Solar Energy in the United Arab Emirates The success of the solar power initiatives in the UAE is largely attributed to the wide range of financial incentives that the UAE government has offered to the companies that are prepared to advance the […]
• Suzlon Energy Case from a Strategic Point of View Suzlon is the dominant provider of wind energy in India with a market share of more than 50% where it provides customers with both the land and the infrastructure.
• Renewable Energy: Geothermal Energy Of all these forms of renewables, geothermal energy is perceived as one of the renowned forms of renewable energy which is generated from the crust of the earth.
• Advantages and Disadvantages of Wind Energy Another advantage is the fact that most of the turbines that are used in the generation of wind power are located in ranches, and on farms.
• Wind Energy as Forms of Sustainable Energy Sources T he only costs to be met in producing wind energy is the cost of equipment for harnessing wind, wind turbines for converting the energy and photovoltaic panels for storing energy.
• Energy Conservation The second step is to check all the electric devices and gadgets in every room unplugging them from the sockets on the walls, switching off all the bulbs that are on.
• Solar Energy in the UAE It is important to note that the nature of the solar field is modular, and that it has a number of parallel solar collector rows.
• The Emirates Nuclear Energy Corporation The Emirates Nuclear Energy Corporation, ENEC, brought together six UAE member states, the International Atomic Energy Agency and other countries such as the United States of America. The assertions made above indicate that UAE relies […]
• Can a Switch to Renewable Energy Sources Help Combat Global Warming? This paper will argue that since fossil fuels have been the primary contributors to the global warming problem, a switch to renewable energy sources will help to mitigate global warming and possibly even reverse the […]
• Renewable Energy: Comparison Between Biogas and Solar Energies Again, the research finds that the cost of installation is higher compared to solar energy sources. However, the paper is going to compare solar and biogas energy sources.
• The Energy Crisis and Its Biological and Environmental Impact While the process of formation of fossil fuels is long and the process of their consumption quick, the use of these fuels presents hazards to the environment.
• Application of Catalyst and Energy Production This work entails developing a catalyst coupled with the construction of a good reformer in the field of catalysis. The catalyst is released at the end of the reaction and may be used again.
• Energy Drink Competition Analysis The short product life cycle in this industry requires an effective research and development strategy to ensure that new products are availed to the market at the opportune time.
• Environment and Renewable Energy A greater focus on renewable energy development is necessary in this day and age due to the various problems brought about by the use of fossil fueled power plants, which have caused not only an […]
• The Effects of Energy Drinks and Alcohol on Neuropsychological Functioning According to the title of the report, the aim of Curry and Stasio is to identify the effects of energy drinks and alcohol on neuropsychological functioning.
• The Impact of Green Energy on Environment and Sustainable Development Traditional methods of receiving the necessary amount of power for meeting the needs of the developed cites and industries cannot be discussed as efficient according to the threat of the environmental pollution which is the […]
• The Importance of Affordable and Clean Energy One of the best ways to accomplish this is to encourage the international community to develop renewable energy sources. Local sources of energy are crucial to developing countries, as occasionally, electricity can be an issue […]
• Energy Wasting and Consumption Optimization The problem of the research is that patterns of energy waste are ineffective and contribute to the problem of energy waste. The purpose of the research is to identify the factors that contribute to the […]
• Thermodynamics History: Heat, Work, and Energy A famous ancient painting of the machine that was attributed to Hero of Alexandria as the inventor in the first century points to the beginning of thermodynamics.
• Biomass Energy, Its Advantages and Disadvantages Biomass energy is a source of energy that involves the use of natural living matter such as plants and animals. As stated, biomass energy is cheap and accessible to the majority of people.
• Halliburton Company: Energy Issues Halliburton is one of the major players in the energy industry. The main goal of this paper is to discuss three issues that are relevant to the company.
• Tesla’s Strategic Plan for Leadership in Energy Sector The purpose of this report is to analyze Tesla’s strategic plan of technological leadership in the energy segment to strengthen its competitive position.
• Nuclear Energy: Safe, Economical, Reliable Thus, nuclear energy is viable and safe in meeting the current and future demand for energy across the world. Nuclear energy has significant implications for the environment and population health in case of an accident […]
• Energy Drink Product Marketing As far as the objectives regarding the brand in question are concerned, it will be imperative that the introduction of the product into the global market should trigger at least a 10% increase in the […]
• UK Energy Industry Analysis This report evaluates the market structure of the UK energy sector, the reasons for the current structure, and the possible future structure. The report further assesses the impact of the industry structure on strategy decisions […]
• Nuclear Energy and Its Risks The situation became difficult when the power in the reactors reduced and could not be enough to be used by the operators.
• Energy Conservation for Solving Climate Change Problem The United States Environmental Protection Agency reports that of all the ways energy is used in America, about 39% is used to generate electricity.
• Carbon Taxes in Environmental Protection In addition, application of the strategy extends to the use of fuels and the amount of carbon emitted in the process of production.
• Non-Conventional Energy Resources In the world, there exist different forms of energy that are categorized into two groups that include the fossil fuels and non-fossil fuels.
• Role of Alternative Energy Resources in Reshaping Global Transportation Infrastructure In this regard, it will emphasize on the invention and use of electric cars to achieve environmental conservation. This is major concern as in the case of purely electric cars.
• The EON Firm as an Energy Service Provider The major factor that sets EON apart from other companies within the same industry is that it is It is one of the largest energy providers in the globe, and yet it does not have […]
• The Sun’s Light and Heat: Solar Energy Issue The figure below provides an overview of the major parts of the solar system, which include the solar core, the radiative zone, the convective zone, the photosphere, the chromosphere, and the corona among others.
• Investment in Renewable Energy Sources Thus, it is possible to say that climate crisis can prove to be a catastrophe that can profoundly influence people living in various regions of the world; more importantly, the existing policies are not sufficient […]
• Australian Energy Company Strategic Human Resource Management The other important aspect of the integrated model is the focus on employ assessment in order to ensure that the employees comply with the process-based standards rather the development of a psychological atmosphere that enables […]
• Contradictions to the Conservation Law of Energy One of the major contributions of the article is a discussion on the various contradictions that the law of conservation of energy has.
• Energy: Types and Conversion Process This process is called energy conversion, and it is one of the most important concepts in understanding energy. An example of energy conversion in daily activities is the shift from electric energy to heat in […]
• British Petroleum Alternative Energy The company was incorporated in the UK in 2005 and is operating all over the world. After incorporating, British petroleum sold off its derivative businesses to be able to run the current business The company […]
• Massey Energy Company’s Social Responsibility According to Williams, this decision is contrary to the justice rule of ethics in a business because it continues to do more harm than good to the people. Consequently, it would be easier said than […]
• Geothermal Energy and Its Application in the Middle East Not much is known to the general public regarding the development of the geothermal energy in the countries of the Middle East.
• Suzlon Energy Case The failure of a company to invest in growth will render it uncompetitive in the medium-term. There is sufficient room for expansion of Suzlon to cover the emerging markets and increase its presence in the […]
• Recovering Energy from Waste In the past, the Victorian government did not see the relevance of enacting strict policies to help in the management of waste because it never considered it a major issue.
• Sustainable Initiatives in Energy Industry Therefore, they are mandated to regulate the use of energy in the country Some researchers argue that, private companies should regulate the production of energy resources, while others argue that end users should also be […]
• Renewable Energy Sources Thus, the establishment that the use of fossil fuels adversely affects the environment is important in explaining the shift to the use of renewable energy sources.
• Ethanol as an Alternative Energy Source The fuel has the backing of some of the influential figures in the automobile industry. Ethanol has the capacity to absorb water in the engine such that one eliminates the need for addition of such […]
• Wind Energy: The Use of Wind Turbines One of the most promising is wind energy, specifically the use of wind turbines to produce clean and renewable energy. The only problem is that it is more expensive to build large wind turbines.
• New Techniques for Harnessing Solar Energy Due to the scarcity of fossil fuels and the expenses incurred in the mining of fossil fuels, it is important that we find a new source of energy to fulfill the energy needs of the […]
• Aspects of Materialism and Energy Consumption In my opinion, this led to the formation of the materialism phenomenon and enforced a particular way of thinking centered on meeting one’s demands.”Different economies worldwide use fossil fuels, such as coal, oil, and natural […]
• Innovations on Energy and Water Co-Benefits In addition, the number of harmful emissions that are harmful to both people and the planet will be significantly reduced. The introduction of social innovations is to develop strategies that will solve social problems.
• Climate Change: Renewable Energy Sources Climate change is the biggest threat to humanity, and deforestation and “oil dependency” only exacerbate the situation and rapidly kill people. Therefore it is important to invest in the development of renewable energy sources.
• Energy Resources in Minnesota: Clean Energy Transition Just like the United States, the MROW region is one of the leading coal producers in the country, which means many people and organizations have a significant reliance on this resource.
• The Engie Firm’s Vision of Energy Sobriety in Asia For Engie to have a leading vision of energy sobriety in APAC regions and still make profits compared to their competitors, the company should make strategic alliances with other companies in Japan that can aid […]
• The Concept of Energy Consumption and Integrity Therefore, I prefer the end-use method as it is the most appropriate for a full account of energy consumption patterns in totality.
• “Windfall Taxes on Energy Are All the Rage They Shouldn’t Be” by Mintz As such, the editors expound that the Russian invasion of Ukraine has led to governments from Europe to the United States grappling with energy alternatives due to its scarcity.
• Å Energi IT Infrastructure and Strategic Solutions The company aspires to expand its operations in the Eastern and Southern parts of the United States of America to serve the local population.
• The Role of Renewable Energy in Addressing Electricity Demand in Zambia In this regard, ZESCO Limited, the Zambian power utility company, has an obligation to generate and supply the electricity in the country.
• IT Services in the Energy Industry Companies Although the existing literature on the topic of digital transformation is abundant, the area of IT service management within the context of the larger digitalization of organizations is surprisingly underresearched.
• The Caribbean Culture: Energy Security and Poverty Issues Globally, Latin American and the Caribbean also has the most expensive energy products and services because of fuel deprivation in the Caribbean and the Pacific regions.
• Low-Carbon Multi-Energy Options in the UAE S, and Mohamad, M.O.A.’Transition to low-carbon hydrogen energy system in the UAE: sector efficiency and hydrogen energy production efficiency analysis. The authors found that the UAE should put industry and transportation first in the transfer […]
• Water and Energy Problems in Mining Industry The goal is to find and recommend solutions for mining companies to easily access quality ore deposits in inaccessible areas. According to the second interviewee, accessibility to water and electricity are among the major challenges […]
• The Relationship Between the Kinetic Energy of Motion and the Force The ultimate goal of the laboratory work is to determine the relationship between the kinetic energy of motion and the force.
• Sustainable Development and Water-Food-Energy Nexus in Sweden The Food and Agriculture Organization of the United Nations states that the securities of food, energy, and water are interconnected and depend on each other.
• Energy Balance and Expenditure Energy density, which is typically expressed as the number of calories in a gram, is the quantity of energy or calories in a specific weight of food.
• The Agriculture, Energy, and Transportation Infrastructure: Main Threats Thus, the purpose of the work is to analyze the food/agricultural, energy, and transport sectors of critical infrastructure in terms of physical, cyber, or natural disaster threats.
• Mind-Body and Energy Approaches This connects to the film because the video explains how one’s health can be preserved by ensuring that the mental and emotional components of the mind-body system are treated to the appropriate conditions in the […]
• Equations for Predicting Resting Energy Expenditure They helped identify the best equations to use for predicting REE in patients of different weight and age categories when indirect calorimetry is unavailable.
• Interplay of Energy Systems During Physical Exercise At the start of the exercise in consideration, as the three energy systems begin to supply energy to cells, the ATP-PC system provides the most energy during the first 10 seconds of running, with the […]
• Types of Energy and Their Effects on Matter Finally, electrical energy is similar to thermal energy, but in this case, there is the movement of electric charges, which cause perturbation of the electromagnetic field.
• Energy Deficiency During Training Study by Beals et al. Additionally, the training of the SQT students in MWCW to determine the TDEE, compare it to the TDI and observe temperature patterns did not adhere to various ethical standards as the participant’s health was not […]
• Unnecessarily Waste of Energy During a Typical Day It is common to walk out of place and neglect the duty to turn off the lights. Similar to the previous issue, this action neglects the principle of effective and minimized use of energy in […]
• Barriers to Deploying Renewable Energy in Hotels The main benefit of renewable energy is environmental protection, improving the environmental and social performance of the industry, and reducing utility costs.
• A Virtual Resource to Reimagine Energy for People It is important to note that BP Plc is engaged in both mandatory and voluntary reporting as well as disclosure of information in order to achieve a higher degree of legitimacy.
• Green Energy Solutions & Sustainability at Al Qusais Landfill The figure below presents the overview of the company and the potential solutions to its problems. Furthermore, it is in the best interest of the government to mitigate the negative externalities and promote positive externalities.
• Issues Affecting the Energy Industry and Their Solutions The increasing demand for sustainable energy is one of the issues affecting the sector. Price volatility is one of the most significant concerns in the energy industry.
• Impact of Energy on Ecosystems The major benefit of the generation of renewable energy is the minimization of water and air pollution as it does not presuppose carbon dioxide emission and soil erosion. For instance, the use of wind energy […]
• Renewable Energy: An International Profile To illustrate the severity of some of the outlined consequences and challenges presented to the national environment, the following graph is presented, illustrating the growth rate of the US fracking industry.
• Energy and Sustainability Issue in the Ignabi Community Thus, understanding different methods of generating renewable energy is the key to ensuring that the world achieves a low-carbon level in the future.
• The Speech on the Use of Alternative Energy Sources for Different Audiences The upbringing of children determines the future of a society in which their generation will make decisions, and for this reason, it is necessary to inform them of global issues.
• Unlocking Geothermal Energy: Eden Project’s Sustainable Transition The biomes of the attraction, along with some other buildings, are going to be heated by the use of geothermal energy.
• Cybersecurity in the Energy Sector The stable supply of energy is the key to the normal functioning of American society, as it fuels all essential industries that ensure the vitality of the nation.
• Low-Income Home Energy Assistance Program (LIHEAP): Georgia The history of the program dates back to the 1980s when the Low Income Energy Assistance Program was created to mitigate rising energy prices.
• “The American Recovery and Reinvestment Act”: Developing Renewable Energy The focus of this bill on the technological aspect of environmental protection is seen in the allocation of funds on loan guarantees, grants for researchers, and the manufacturing of advanced systems.
• Energy and Air Emission Effects of Water Supply Contemporary systems meant to heat water/air explore both the heat pumps and the solar plates that are combined to form a unit with the aim of optimizing on the energy efficiency as well as solar […]
• Metropolitan Edison Company vs. People Against Nuclear Energy In addition, the commission published a hearing notice which entailed an invitation to parties that were interested to submit their briefs explaining the impacts of the accident to the psychological harm or any other indirect […]
• Technology and Wind Energy Efforts by the elite members of the society enlightened the global countries about the benefits of renewable energy sources in conserving the environment prompting the need to consider wind energy.
• Efficient Solar Refrigeration: A Technology Platform for Clean Energy and Water Refrigeration cycle capable to be driven by low grade energy, substituting gas-phase ejector used in conventional mechanical compressor.
• Non-Renewable Energy and Gross Domestic Product of China The use of non-renewable energy in China has the negative impact on the GDP, as indicated by the negative values of DOLS and CCR coefficients. The generation of renewable energy has a negligible negative impact […]
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🎓 EnergyWriting Prompts

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• Global Race for Energy
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• Mitigation Plan for Energy Resources
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• Evolution of Solar Energy in US
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• Are Alternative Energy Sources an Option?
• Nuclear Energy in Australia
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• Impact of Nuclear Energy in France
• Suppression of Alternative Energy
• Energy Needs in the United States of America
• Problems in Energy Conservation
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• Is Solar Energy Good for the State of New Jersey?
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Abnormally Dry Canada Taps U.S. Energy, Reversing Usual Flow

Lower-than-normal rain and snow have reduced Canada’s hydropower production, raising worries in the industry about the effects of climate change.

Canadian hydroelectric plants, like the Robert-Bourassa Generating Station in northern Quebec, have faced low water levels because of a recent drop in rain and snow. Credit...

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By Ivan Penn

Photographs by Ruth Fremson

Reporting from Hydro-Québec’s Robert-Bourassa Generating Station, Montreal and Portland, Ore.

• June 3, 2024

In February, the United States did something that it had not done in many years — the country sent more electricity to Canada than it received from its northern neighbor. Then, in March, U.S. electricity exports to Canada climbed even more, reaching their highest level since at least 2010.

The increasing flow of power north is part of a worrying trend for North America: Demand for energy is growing robustly everywhere, but the supply of power — in Canada’s case from giant hydroelectric dams — and the ability to get the energy to where it’s needed are increasingly under strain.

Many energy experts say Canadian hydroelectric plants, which have had to reduce electricity production because of a recent drop in rain and snow, will eventually bounce back. But some industry executives are worried that climate change, which has already been linked to the explosive wildfires in Canada last year , could make it harder to predict when rain and snowfall will return to normal.

“We’ve all got to be humble in the face of more extreme weather,” said Chris O’Riley, president and chief executive of the British Columbia Hydro and Power Authority, which operates hydroelectric dams in western Canada. “We manage from year to year the ups and downs of water, and when we have the downs like we’re having, the lower levels, it’s common for us to import power, and we expect to continue that this year.”

The United States and Canada have long relied on each other because power use tends to peak north of the border during the winter when Canadians use electric heaters, and American electricity use peaks in the summer during air-conditioning season.

The abundance of Canada’s hydroelectric power has been a cornerstone of the trade, providing relatively low-cost renewable energy to California, Oregon, Washington State, New York State and New England.

But the supply-and-demand equation for energy is changing. Demand for electricity in many states has been climbing sharply in summer and winter. Some experts predict that winter electricity demand in the United States could eclipse summer demand by 2050.

At the same time, utilities are increasingly reliant on intermittent resources like solar and wind power. Large hydroelectric plants, once considered a stable source of electricity, have struggled with low reservoirs in California, around Hoover Dam and recently in Canada.

“We are facing real changes in the weather, and we’re finding out in real time how that’s going to affect hydroelectric operations, pretty much across North America,” said Robert McCullough of McCullough Research, a firm based in Portland, Ore., who has been a consultant for corporate customers of Canadian utilities since the 1980s.

In addition, electricity use is expected to climb as people and businesses turn to electric heat pumps, cars and industrial equipment to replace devices that burn oil, natural gas and coal. Demand is also growing because of data centers .

One solution is to build more power lines, something the Biden administration and some states are working on. But energy experts say the United States also ought to add more such connections to Canada. That would allow, for example, solar farms in California to supply Canada when its dams don’t have enough water and for Canadian utilities to send more power south when they have an abundance.

“Most models suggest that a more interconnected grid is a better grid,” said Shelley Welton, a presidential distinguished professor at the University of Pennsylvania who helped write a recent report on electric grid reliability and governance. “I do think there is power in being interconnected across North America. We need scenario planning. We need long-term planning.”

Set among the pine and spruce trees of northern Quebec, the Robert-Bourassa hydroelectric dam represents the promises and challenges inherent in harnessing renewable energy.

The plant’s operator, Hydro-Québec, a utility owned by the Canadian province, built the power plant on a bank of La Grande River as part of a network of stations that can produce more than twice as much electricity as the largest U.S. power plant — the Grand Coulee Dam on the Columbia River in Washington State.

The La Grande complex has helped Hydro-Québec become a leading supplier to New York State and New England. But less snow than normal has forced Hydro-Québec and other Canadian utilities to import more power from the United States in recent months.

“It looks like conditions are abnormally dry,” said Gilbert Bennett, president of Water Power Canada, a nonprofit that represents the hydropower industry. “The year-to-year variations are becoming large.”

Hydro-Québec executives say they expect the dry spell to end soon, citing similar stretches in 2004 and 2014. Models predict an increase in precipitation of 6 to 8 percent for eastern Canada over the next 25 years, the company said.

Serge Abergel, chief operating officer for Hydro-Québec Energy Services, said Canada’s greater reliance on the United States had been a temporary way for hydro plants to save their water. He added that as both countries modernized and expanded their grids with more renewable and efficient resources, they would be able to complement each other.

“The transition is also creating opportunities,” Mr. Abergel said during a recent tour of the Robert-Bourassa dam. “You optimize these resources.”

In general, the United States would prefer to import more power from Canada because it’s much cheaper. Hydro-Québec’s residential customers pay about $50 for 1,000 kilowatt-hours of energy, Mr. Abergel said, compared with $236 in New York State and $276 on average in New England .

The company’s costs are low because its hydro plants were built and paid off long ago. But bringing that affordable power south is expensive — Canadian hydro energy costs homeowners in Massachusetts twice as much as it does residents of Quebec, according to an analysis by McCullough Research.

Hydro-Québec has been building more power lines. It is taking part in one project, the Champlain Hudson Power Express , which is expected to be completed by mid-2026. The $6 billion, roughly 339-mile-long transmission line will connect a substation in La Prairie, near Montreal, to a converter station in Astoria, Queens. The line will be able to deliver enough energy to serve more than a million homes in New York City.

“If you want to transition quickly, you need more transmission,” Mr. Abergel said. But, “we’re not incentivizing someone to come up with solutions,” he added. “We’re doing things piecemeal.”

Mr. Abergel said Hydro-Québec would meet all of its obligations to New York and other states despite the dry conditions because it can preserve water by reducing how much electricity its hydro power produces and importing more energy from the United States. This way, the company will still have enough water to export power when energy demand is higher in New York and New England.

But some energy experts are not so sanguine. Mr. McCullough, the consultant, said he worried that global warming could so strain reservoirs that it would no longer be feasible for Canadian utilities to keep enough water in reserve to make it through a very long dry spell.

“Each time we have one of these episodes,” Mr. McCullough said, “it’s a white-knuckle moment.”

How dependent the utilities in the United States and Canada are on each other is on stark display in Oregon. Portland General Electric, a utility serving about two million residents in the state, tracks water flows and snowpack in British Columbia from an operations center near Portland.

When drought and wildfires threaten areas around the Columbia River, hydroelectric plants and transmission lines that connect Canada, Washington, Oregon and California become vulnerable.

“What we’re really concerned about right now is the snowpack is low in Canada,” said Darrington Outama, senior director of power operations at Portland General Electric. “What we focus on as a region is how are they doing up there.”

In addition to importing electricity from British Columbia, PGE gets power from two small hydroelectric plants in the Bull Run watershed east of Portland.

Oregon’s Bull Run rainforest does not get water from the Columbia River. But a severe wildfire like one last summer could force officials to shut down those dams and stop drawing water from Bull Run. If that happened, Portland would have to rely on groundwater, which could in turn affect the Columbia River and hydroelectric dams tied to it.

“We have to think about all of the scenarios,” Kristin Anderson, water resources program manager for the Portland Water Bureau, said during a tour of the Bull Run. “We’ve been seeing more rapid shifts of weather moments. We’re planning throughout the season to be ready for anything.”

Hydroelectric plants often are the lowest priority for water use. As a result, wildfires, low snowpack and drought can lead to significant reductions in their production. If demand for electricity is high at the same time, regional energy grids could buckle.

“There were these historic patterns of power from north to south,” Mr. O’Riley of British Columbia Hydro said. “All of those patterns have been upended. Power’s flowing in all different directions.”

In a twist, California, which suffered a severe drought in recent years, has lately been awash. Blizzards, atmospheric rivers and other storms have covered the state’s mountains in snow and topped off reservoirs, enabling its dams to crank out lots of electricity.

The state also recently installed many large batteries that allow utilities to use the abundant solar power for hours after the sun has set.

California’s energy plenitude should be a boon to British Columbia, Oregon and Washington State, but energy executives said there weren’t enough transmission lines to carry all of that surplus electricity north where it is needed.

Ivan Penn is a reporter based in Los Angeles and covers the energy industry. His work has included reporting on clean energy, failures in the electric grid and the economics of utility services. More about Ivan Penn

Ruth Fremson is a Times photographer, based in Seattle, who covers stories nationally and internationally. More about Ruth Fremson

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Tesla Powerwall

• Electrical grid
• Smart Energy Home
• Tesla Powerwall 3

Tesla Energy x SPAN pair up to offer a home battery storage bundle

Tesla Energy and smart electrical panel maker SPAN have launched the SPAN + Tesla Powerwall 3 bundle, a smart home battery backup system.

SPAN announced the partnership on LinkedIn and described the bundle as unlocking “special bundled pricing and next-level functionality for the most advanced home energy management technology on the market, including real-time energy insights and backup load control from anywhere in the SPAN App.”

The bundle costs $11,500, excluding installation and taxes. A Tesla Powerwall 3 costs at least $8,400 before taxes and installation, and a SPAN panel retails for $3,500 before taxes and installation, so the bundle saves you around $400, and that doesn’t take into account federal tax credit and rebate savings.

The SPAN + Tesla Powerwall 3 bundle has 13.5 kWh of stored energy capacity and whole home energy data. What’s neat about the bundle is that it extends Tesla Powerwall 3’s backup duration by a whopping 40% in a power outage. That’s because you have control over exactly what in your house receives power using SPAN’s app, so none is wasted.

It’s available now in California and Texas, and it will be rolled out to more states throughout the year. SPAN matches you with an installer who is both SPAN & Tesla certified.

SPAN, whose CEO, Arch Rao, is the former head of products at Tesla, began selling its smart electrical panel in 2020. As consumers electrify their homes, the panel is able to give consumers more control over and insight into how their homes are using energy.

Read more: Tesla releases more details on Powerwall 3, confirms cheaper stack coming

To limit power outages and make your home more resilient, consider going solar with a battery storage system. In order to find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage , a free service that makes it easy for you to go solar. They have hundreds of pre-vetted solar installers competing for your business, ensuring you get high quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use and you won’t get sales calls until you select an installer and you share your phone number with them.

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisers to help you every step of the way. Get started here . – ad*

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Tesla is a transportation and energy company. It…

Michelle Lewis is a writer and editor on Electrek and an editor on DroneDJ, 9to5Mac, and 9to5Google. She lives in White River Junction, Vermont. She has previously worked for Fast Company, the Guardian, News Deeply, Time, and others. Message Michelle on Twitter or at [email protected]. Check out her personal blog.

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