essay on importance of sources of energy

Alternative Sources of Energy Essay

When will we switch to renewable sources of energy? Such as solar, wind, hydro, and geothermal power. In this Alternative Sources of Energy essay, the author argues that the Sun and wind have the potential to reduce our dependence on fossil fuels and lower carbon emissions. Read the paper to learn about the challenges, limitations, and benefits of implementing alternative energy sources. A particular part is dedicated to the importance of government policies in promoting the development and use of alternative energy sources. Overall, the essay on alternative sources of energy presents a comprehensive overview of the current state of renewable energy and its potential for shaping our future.

Introduction

Solar power, course of action, works cited.

The world has been overly relying on oil as a source of energy to fuel most of its operations. It is important to note that as much as 80% of the world’s energy comes from fossil fuel. Unfortunately, the fossil deposits we have in the world cannot last forever. They will be depleted one day and cause a lot of problems in the world.

Therefore, efforts should be made to ensure that other sources of energy are found so that when fossil fuel gets depleted the world does not come to a halt. In this regard, many people especially in the U.S. have been concerned with the steps that the government is taking towards encouraging development of other sources of energy.

Consequently, the government has been urged to reduce restrictions impeding the development of renewable sources of energy and increase funding of the same. However, to address this issue, it is better to understand some of the sources renewable energy.

Among the proposed sources of power to be used is solar energy. Solar energy is a renewable source of energy because the sun has been there and can only be absent for a very short period of time. On the same note, harnessing of solar energy is noise proof which means that noise pollution is avoided when using solar power (Boxwell 58).

Similarly, solar power is environmental friendly because it does not produce any form of pollution. In addition, equipments used in the production of solar power are cheap to maintain thus the long run cost of production is low. Moreover, it is easy and cheap to install appliances of solar power.

Similarly, the electricity produced from solar energy can be used to power virtually every thing that uses power (Boxwell 59). It is also important to note that the production of solar power does not lead to environmental degradation like digging up the ground or deforestation.

However, solar power has its disadvantages. To begin with, some people have argued that the initial cost of installing solar power harnessing equipment is very high. Additionally, harnessing of solar power is affected by whether and cannot be done during cloudy or rainy days and at night. Therefore, another source of energy is needed to act as a back up (Boxwell 60).

On the other hand, wind energy is also another source of energy that can replace fossil fuel. Wind energy does not emit green house gases which are dangerous to the environment. Furthermore, no fossil fuels are burnt to produce wind energy thus it does not pollute the environment (Miller and Scott 407). Besides, extraction of wind energy is more efficient given the advancement in technology.

The turbines used to produce wind power only occupy little space at the base leaving room for other activities to be done on the ground. Moreover, wind energy is highly applicable in under developed parts of a country and can add to the tax base of the area.

In addition, renewable sources of energy, wind being among them, require minimal subsidies to maintain. On the same note, the cost of producing wind power is constant and therefore prices for wind power do not fluctuate. Most importantly, wind is free and thus cost of producing wind power is low in the long run (Miller and Scott 407).

It is crucial, however, to highlight that wind power has its share of disadvantages. Firstly, wind power depends on the flow of wind. On the days when the weather is calm wind power might not be generated. On the same note, the initial cost of producing wind power is quite high and individuals may not afford it (Miller and Scott 408). Lastly, power produced by the turbines is insufficient compared to power produced by fossil fuels.

Despite the disadvantages of wind and solar power, their advantages are definitely more. They are renewable and therefore they will never get depleted. Sooner or later the government will have to find alternative ways of producing power.

Consequently, it is high time that the government increased its financial support in the production of the two types of power (Miller and Scott 407). Reduction of restrictions is necessary but it might not be sufficient given the heavy initial cost. Similarly, renewable sources of energy, especially wind and solar power, are both economically and environmentally viable in the long run hence the need to invest in them.

The fact that the country currently satisfies most of its energy requirements should not blind our eyes. We will need to think of how we will operate in future. The fossil fuel that forms the giant part of energy source will definitely be exhausted with time.

It will be a great disservice to the future generations if we do not find sustainable energy sources. Consequently, the government has no option but to encourage the production wind and solar energy.

Boxwell, Michael. Solar Electricity Handbook: A simple. Practical Guide to Solar Energy-Designing and Installing Photovoltaic Solar Electric Systems . Warwickshire: Greenstream Publishing, 2010. Print.

Miller, Tyler G. and Scott Spoolman. Living in the Environment: Principles, Connections, and Solutions . Stanford: Cengage Learning, 2011. Print.

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Importance of Energy

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What Is the Importance of Energy Sources?

Why Should We Conserve Fossil Fuels?

The topic of the importance of energy sources is a conversation that will continue over the next few decades as more people begin to realize the value of utilizing renewable energy as opposed to getting energy from sources that don't naturally regenerate. Nonrenewable energy sources include fossil fuels that come from beneath the ground and take thousands of years to form. Renewable energy sources regenerate quickly and can supply a region with its long-term energy needs far into the future.

TL;DR (Too Long; Didn't Read)

The importance of energy sources, such as renewable versus nonrenewable ones, remains undeniable as humans continue into the 21st century. When crude oil, a form of nonrenewable energy, will disappear in about 50 years, people will need alternative energy sources to power their homes and their vehicles. This presents a clear argument in favor of the importance of developing nonrenewable energy sources sooner rather than later.

Nonrenewable Energy Sources

Not all nonrenewable energy sources come from fossil fuels. Uranium forms as mineral deposits and is a nonrenewable energy source mined from underground locations that becomes fuel for use at nuclear power plants. Fossil fuels such as hydrocarbons consist of coal, crude oil, fuel oil, and natural gas formed from the carcasses of dead plants and animals. Because all these fuels don't replenish in the short term, taking eons to form, scientists consider them nonrenewable.

Renewable Energy Supplies

Renewable energy comes from sunlight, wind, geothermal, moving water, biomass and biofuels. Environmentalists tout the importance of renewable energy sources because they represent clean energy with a lower impact on nature. Clean energy sources also cost less: The power source is free, and it costs less to install a wind turbine or a solar array than it does to drill for oil. Wind and sun don't disappear with use, as they continually regenerate. Hydroelectric plants on dams and rivers can generate a significant amount of electricity and will continue to do so as long as water continues to flow. Other sources include fuels like ethanol. It comes from plants and the energy of heat generated by wood burning. Inventors and scientists have also found ways to generate power from the force of the waves in the ocean.

Impact and Disappearance of Fossil Fuels

Fossil fuels have a serious impact on the environment as noted by climatologists across the globe. It takes money to extract them from the ground, process them for use and transport them to the end consumer. Fossil fuels add C0 2 and other greenhouse gases to the air during each one of these stages. They also stay trapped in the atmosphere and affect the global climate. Other problems include groundwater contamination from fracking, increased earthquakes in fracked regions, and sinkholes that occur due to oil drilling.

Not everyone benefits from fossil fuel, as it costs more in third world countries than locals can often afford. Assumptions by researchers at Stanford University estimate that in 113 years all the coal will be gone. Natural gas will disappear in 52 years, and crude oil will mostly disappear in 50 years. These assumptions point to the importance of nonrenewable energy sources.

Related Articles

Uses for fossil fuels, how do we transport coal, what are the benefits of saving electricity, pros & cons of coal energy, natural gas information, uses of diesel oil, how does geothermal energy work, how is rain formed, oil drilling benefits, exhaustible energy sources, what are the major energy sources on the earth, how do organic sedimentary rocks form, positive effects of humans on the ecosystem, what are renewable and non-renewable resources, renewable, nonrenewable and inexhaustible resources, fuels used in our daily life, how are cyclones made, sources of energy from the 1800s, how to distill oil using a coffee pot.

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• Carleton University: Uranium Deposits
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• Stanford University: Tick Tock: Fossil Fuel Reserve Estimates
• Inside Climate News: Fracking Study Finds Toxins in Wyoming Town's Groundwater and Raises Broader Concerns
• Forbes: Thanks To Fracking, Earthquake Hazards In Parts Of Oklahoma Now Comparable To California
• Tulane University: Subsidence: Dissolution & Human Related Causes

About the Author

As a journalist and editor for several years, Laurie Brenner has covered many topics in her writings, but science is one of her first loves. Her stint as Manager of the California State Mining and Mineral Museum in California's gold country served to deepen her interest in science which she now fulfills by writing for online science websites. Brenner is also a published sci-fi author. She graduated from San Diego's Coleman College in 1972.

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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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• Renewable and nonrenewable energy resources

Renewable and nonrenewable energy sources

• Global energy use
• Intro to energy resources and consumption
• Nonrenewable energy sources are those that are consumed faster than they can be replaced. Nonrenewable energy sources include nuclear energy as well as fossil fuels such as coal, crude oil, and natural gas. These energy sources have a finite supply, and often emit harmful pollutants into the environment.
• Renewable energy sources are those that are naturally replenished on a relatively short timescale. Renewable energy sources include solar, wind, hydroelectric, and geothermal energy. They also include biomass and hydrogen fuels. These energy sources are sustainable and generate fewer greenhouse gas emissions than fossil fuels.

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• 08 August 2023

Clean energy can fuel the future — and make the world healthier

You have full access to this article via your institution.

China is on track to reach its solar-power target for 2030. Credit: Zhao Yongtao/VCG/Getty

The 2030 targets laid out by the United Nations for the seventh Sustainable Development Goal (SDG 7) are clear enough: provide affordable access to energy; expand use of renewable sources; improve energy efficiency year on year; and enhance international cooperation in support of clean-energy research, development and infrastructure. Meeting those goals, however, will be anything but simple. As seen in many of the editorials in this series examining the SDGs at their halfway stage , the world is falling short.

This is due, at least in part, to the influence of the fossil-fuel industry, which drives the economics and, often, the politics of countries large and small, rich and poor. Rising human prosperity, as measured by economic growth, has long been linked to an abundance of fossil fuels. Many politicians fear that the pursuit of clean-energy sources will compromise that economic development. The latest science clearly counters this view — but the voice of the research community is not being heard in the right places. To meet the targets embodied in SDG 7, that has to change.

There is much to be done. In 2021, some 675 million people worldwide still did not have access to electricity. This is down from 1.1 billion a decade or so ago, but the pace of progress has slowed. On the basis of current trends, 660 million people, many of them in sub-Saharan Africa, will remain without electricity by 2030. And projections indicate that some 1.9 billion people will still be using polluting and inefficient cooking systems fuelled by coal and wood (see go.nature.com/3s8d887 ). This is bad news all round: for health, biodiversity and the climate.

Carbon emissions hit new high: warning from COP27

Achieving the energy-access targets was always going to be a stretch, but progress has been slow elsewhere, too. Take energy efficiency. More energy efficiency means less pollution, and energy efficiency has increased by around 2% annually in the past few years. But meeting the target for 2030 — to double the rate of the 1990–2010 average — would require gains of around 3.4% every year for the rest of this decade.

The picture for renewable energy is similarly mixed. Despite considerable growth in wind and solar power to generate grid electricity, progress in the heat and transport sectors remains sluggish. Renewable energy’s share of total global energy consumption was just 19.1% in 2020, according to the latest UN tracking report, but one-third of that came from burning resources such as wood.

One reason for the slow progress is the continued idea that aggressive clean-energy goals will get in the way of economic development. It’s easier and more profitable for major fossil-fuel producers to simply maintain the status quo. Just last month, ministers from the G20 group of the world’s biggest economies, including the European Union, India, Saudi Arabia and the United States, failed to agree on a plan to phase out fossil fuels and triple the capacity of renewable energy by 2030.

But this is where science has a story to tell. In the past, researchers say, many models indicated that clean energy would be more expensive than that from fossil fuels, potentially pricing the poorest nations out of the market as well as driving up people’s food bills and exacerbating hunger. But the latest research suggests that the picture is more complex. Energy is a linchpin for most of the SDGs, and research that merges climate, energy and the SDGs underscores this 1 . For example, the agriculture and food-transport sectors still depend on fossil fuels, and that generates pollution that kills millions of people each year. Other links are indirect: lack of access to light at night and to online information — as a result of energy poverty — hampers educational attainment and contributes to both long- and short-term inequality.

US aims for electric-car revolution — will it work?

The lesson from research is that it might be easier, not harder, to address these challenges together. In 2021, researcher Gabriela Iacobuţă at the German Institute of Development and Sustainability in Bonn and her colleagues showed that technologies centred on renewable resources and efficiency tend to come with few trade-offs and many benefits, including improved public health and wealth, thanks to a cleaner environment and better jobs 2 . And climate scientist Bjoern Soergel at the Potsdam Institute for Climate Impact Research in Germany and his colleagues found that a coordinated package of climate and development policies could achieve most of the SDGs while limiting global warming to 1.5 °C above pre-industrial levels 3 .

The study assessed 56 indicators across all 17 SDGs. One proposed intervention is an international climate finance mechanism that would levy fees on carbon emissions that would be redistributed through national programmes to reduce poverty. A second focuses on promoting healthy diets — including reducing the consumption of meat, the production of which requires a lot of water, energy and land. This would benefit people on low incomes by lowering both food and energy prices.

The biggest challenge lies in translating these models to the real world. To do so, we need leaders who are not bound by outmoded thinking, are aware of the latest science and can draw on the research to build public support for the necessary energy transition. We require more national and international public institutions that are willing to address problems at the system level. And all of this needs a science community that is willing and able to champion knowledge and evidence.

Nature 620 , 245 (2023)

doi: https://doi.org/10.1038/d41586-023-02510-y

Vohra, K. et al. Environ. Res. 195 , 110754 (2021).

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Iacobuţă, G. I., Höhne, N., van Soest, H. L. & Leemans, R. Sustainability 13 , 10774 (2021).

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Soergel, B. et al. Nature Clim. Change 11 , 656–664 (2021).

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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.

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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.

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Energy Resources

Coal, one of humankind’s earliest fuel sources, is still used today to generate electricity. However, over time, there has been a shift in demand for cheaper and cleaner fuel options, such as the nonrenewable energy source of natural gas, and renewable options like solar power and wind energy. Each energy resource has its advantages and disadvantages.

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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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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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Alternative Energy Foundation

The Importance of Alternative Energy

In today’s world, the need for renewable and clean energy sources is becoming more and more important. With the ever-growing population and the accompanying need for energy, the demand for energy is rising, and traditional sources of energy such as coal and oil are becoming increasingly scarce and expensive. The current trend of global warming, which is driven by the burning of fossil fuels, is also causing a need for alternative sources of energy which can provide clean, renewable, and sustainable energy. Alternative energy is any energy source that is not derived from fossil fuels, and can include sources such as solar, wind, geothermal, hydropower, and biomass.

The use of alternative energy has many benefits and is becoming increasingly important as the world looks to reduce its dependence on fossil fuels. One of the most important benefits is the reduction of greenhouse gas emissions. Alternative energy sources are generally cleaner and more efficient than traditional energy sources, and can help reduce the amount of carbon dioxide and other pollutants released into the atmosphere. This can help slow down the rate of global warming and climate change, which is essential for the long-term health of the planet.

• Solar Energy : Solar energy, captured and converted into electricity or used to heat, cool, and light buildings, is a renewable and clean energy source with several benefits and challenges.
• Wind Energy : Generated by the movement of air, wind energy is an environmentally friendly alternative to traditional sources of energy. It has numerous benefits, but also has its drawbacks.
• Geothermal Energy : Using the natural heat from within the Earth, geothermal energy has numerous advantages and drawbacks, which are key to consider before investing in a geothermal system.
• Hydroelectric Energy : A form of renewable energy generated by the force of moving water, hydroelectric energy is an efficient, cost-effective, yet ecologically disruptive option.
• Biomass Energy : This renewable energy, created from organic materials such as plants and waste, is a great alternative to fossil fuels but comes with its own set of challenges.

In addition to reducing emissions, alternative energy can also help to reduce energy costs. By relying on renewable sources of energy, such as solar and wind, the cost of energy can be greatly reduced. This can be especially beneficial for businesses and households, as they can save money on their energy bills. Furthermore, by investing in alternative energy sources, governments can help to create jobs in the renewable energy sector, which can help to stimulate the local economy.

Another benefit of alternative energy is that it can help to reduce the dependence on foreign sources of energy. By investing in renewable sources of energy, countries can become more self-sufficient and reduce the need for imports of fossil fuels, which can be expensive and often unreliable. This can help to improve the security and stability of the country, as well as reducing their reliance on other countries.

Finally, alternative energy can also help to improve public health. By relying on renewable sources of energy, the amount of air pollution and other environmental pollutants can be reduced. This can help to reduce the incidence of respiratory illnesses and other health issues, as well as improving the overall quality of life.

In conclusion, alternative energy is becoming increasingly important as the world looks to reduce its dependence on fossil fuels and reduce the effects of climate change. Alternative energy sources can provide clean, renewable, and sustainable energy which can help to reduce emissions, reduce energy costs, and improve public health. Furthermore, by investing in alternative energy sources, governments can help to create jobs and improve their own energy security. For these reasons, alternative energy is becoming increasingly important and should be invested in to ensure a better future for the planet.

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Energy Conservation Essay for Students and Children

500 words energy conservation essay.

Energy conservation refers to the efforts made to reduce the consumption of energy. The energy on Earth is not in unlimited supply. Furthermore, energy can take plenty of time to regenerate. This certainly makes it essential to conserve energy. Most noteworthy, energy conservation is achievable either by using energy more efficiently or by reducing the amount of service usage.

Importance of Energy Conservation

First of all, energy conservation plays an important role in saving non-renewable energy resources. Furthermore, non-renewable energy sources take many centuries to regenerate. Moreover, humans consume energy at a faster rate than it can be produced. Therefore, energy conservation would lead to the preservation of these precious non-renewable sources of energy.

Energy conservation will reduce the expenses related to fossil fuels. Fossil fuels are very expensive to mine. Therefore, consumers are required to pay higher prices for goods and services. Energy conservation would certainly reduce the amount of fossil fuel being mined. This, in turn, would reduce the costs of consumers.

Consequently, energy conservation would strengthen the economy as consumers will have more disposable income to spend on goods and services.

Energy conservation is good for scientific research. This is because; energy conservation gives researchers plenty of time to conduct researches.

Therefore, these researchers will have more time to come up with various energy solutions and alternatives. Humans must ensure to have fossil fuels as long as possible. This would give me enough time to finding practical solutions.

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

Another important reason for energy conservation is environmental protection. This is because various energy sources are significantly harmful to the environment. Furthermore, the burning of fossil fuels considerably pollutes the atmosphere. Moreover, nuclear energy creates dangerous nuclear waste. Hence, energy conservation will lead to environmental protection.

Energy conservation would also result in the good health of humans. Furthermore, the pollution released due to energy sources is harmful to the human body. The air pollution due to fossil fuels can cause various respiratory problems. Energy sources can pollute water which could cause several harmful diseases in humans. Nuclear waste can cause cancer and other deadly problems in the human body.

Measures to Conserve Energy

Energy taxation is a good measure from the government to conserve energy. Furthermore, several countries apply energy or a carbon tax on energy users. This tax would certainly put pressure on energy users to reduce their energy consumption. Moreover, carbon tax forces energy users to shift to other energy sources that are less harmful.

Building design plays a big role in energy conservation. An excellent way to conserve energy is by performing an energy audit in buildings. Energy audit refers to inspection and analysis of energy use in a building. Most noteworthy, the aim of the energy audit is to appropriately reduce energy input.

Another important way of energy conservation is by using energy-efficient products. Energy-efficient products are those that use lesser energy than their normal counterparts. One prominent example can be using an energy-efficient bulb rather than an incandescent light bulb.

In conclusion, energy conservation must be among the utmost priorities of humanity. Mahatma Gandhi was absolutely right when he said, “the earth provides enough to satisfy every man’s needs but not every man’s greed”. This statement pretty much sums up the importance of energy conservation. Immediate implementation of energy conservation measures is certainly of paramount importance.

FAQs on Energy Conservation

Q1 state one way in which energy conservation is important.

A1 One way in which energy conservation is important is that it leads to the preservation of fossil fuels.

Q2 Why energy taxation is a good measure to conserve energy?

A2 Energy taxation is certainly a good measure to conserve energy. This is because energy taxation puts financial pressure on energy users to reduce their energy consumption.

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The Effect of Energy Consumption on Economic Growth: a Scientometric Analysis

• Published: 07 May 2024

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• Ruchika Gahlot   ORCID: orcid.org/0000-0001-7746-993X 1 &
• Madhur Garg 1  

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This research employs science mapping techniques to conduct a comprehensive bibliometric analysis of 409 scholarly articles extracted from Scopus, spanning the period from 2003 to 2023. The primary objective of this study is to compile and categorize existing literature, identifying its primary thematic focuses within the domain of energy consumption and economic growth. Additionally, we aim to pinpoint gaps in the existing literature and propose potential research opportunities within this realm. Our findings reveal several significant insights. Firstly, prior studies predominantly examine the linkage between energy consumption and economic growth at an aggregate level, with limited exploration of specific energy sources such as fossil fuels, renewable energy, and hydroelectric power. Secondly, a dearth of research exists on the nexus between CO 2 emissions, energy consumption, and GDP growth in Asian countries. Lastly, urbanization, globalization, government spending, financial development, and population factors remain largely unexplored in relation to energy consumption and economic growth. This study holds substantial value for both researchers and policymakers. By delineating the thematic focuses and identifying gaps in the literature, it offers crucial insights to guide future research endeavors. Furthermore, it provides a foundation for policymakers to formulate informed strategies aimed at addressing the intricate interplay between energy consumption and economic growth.

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Ruchika Gahlot & Madhur Garg

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Gahlot, R., Garg, M. The Effect of Energy Consumption on Economic Growth: a Scientometric Analysis. J Knowl Econ (2024). https://doi.org/10.1007/s13132-024-02048-y

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Received : 30 January 2024

Accepted : 25 April 2024

Published : 07 May 2024

DOI : https://doi.org/10.1007/s13132-024-02048-y

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Essay on energy: importance and sources.

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Energy is the key input in economic growth and there is a close link between the availability of energy and the growth of a nation. Since energy is essential to conduct the process of Production, the process of economic development requires the use of higher levels of energy consumption.

There exists a strong correlation between per Capita gross National Product (GNP) and energy consumption. Higher per capita GNP countries consume more energy per head. For example, per capita energy consumption in USA was 15.5 times and in Japan 8 times that of India.

Importance of Energy :

(1) Easy availability of energy helps in the process of industrializations in a country.

(2) Production of energy leads to the efficient utilization of natural resources. For example solar energy, wind energy and hydro-electricity power can be generated by using sun light, wind and water resources respectively.

(3) Scope of employment opportunities can be possible with the process of industrialization that is possible with easy availability of energy/ power sources.

(4) Easy availability of energy is required for the expansion of infrastructural development in a country.

(5) Income of a country can be raised with the expansion of the power sector. It also help to achieve economic self sufficiency.

Source of Energy :

Broadly speaking there are two main sources of energy in India:

(a) Commercial Energy,

(b) Non-Commercial Energy.

Commercial source of energy or power are sold at a price and the users are required to pay the price. Commercial energy consists of (i) fossil resource energy (like coal, petroleum, natural gas) (ii) hydroelectric energy (iii) atomic energy. Non-commercial energy sources consist of fire-wood, vegetable waste and animal dung. Since the sources are supposed to the free and no price in paid to acquire them, they are called an non-commercial energy sources.

Although recent development indicates some noncommercial sources are charged a price in the urban areas and to some extent in the rural areas also. In India, most of the rural poor people depend on the non-commercial sources of energy. At present, 23% of the energy consumed is obtained from non-commercial sources. Major users of the commercial energy are industry (507o), transport (22%), household (12%), agriculture (9%) and commercial establishment (1%).

Related Articles:

• What are the different Sources of Energy in India?
• Energy: Essay on the Importance of Energy Production for India

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