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   What is solar energy?

   • Solar energy is any type of energy generated by the sun. Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun’s core and fuse to create a helium atom. This process, known as a PP (proton-proton) chain reaction, emits an enormous amount of energy.

   Solar Energy - National Geographic Society

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   What is solar energy & how does it work?

   • The Sun produces electromagnetic radiation that can be harnessed as useful energy. Solar energy is radiant light and heat from the Sun that is harnessed using a range of technologies such as solar power to generate electricity, solar thermal energy (including solar water heating ), and solar architecture.

   Solar energy - Wikipedia

   en.wikipedia.org/wiki/Solar_energy

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   How much energy does a solar system use?

   • In the United States, heating, ventilation and air conditioning (HVAC) systems account for 30% (4.65 EJ/yr) of the energy used in commercial buildings and nearly 50% (10.1 EJ/yr) of the energy used in residential buildings. Solar heating, cooling and ventilation technologies can be used to offset a portion of this energy.

   Solar energy - Wikipedia

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   Why do people use solar energy?

   • People have used the sun's rays (solar radiation) for thousands of years for warmth and to dry meat, fruit, and grains. Over time, people developed technologies to collect solar energy for heat and to convert it into electricity. Radiant energy from the sun has powered life on earth for many millions of years.

   Solar explained - U.S. Energy Information Administration (EIA)

   www.eia.gov/energyexplained/solar/

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2. en.wikipedia.org › wiki › Solar_energySolar energy - Wikipedia

   en.wikipedia.org › wiki › Solar_energy

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   Solar energy is radiant light and heat from the Sun that is harnessed using a range of technologies such as solar power to generate electricity, solar thermal energy (including solar water heating), and solar architecture.

3. www.nationalgeographic.org › encyclopedia › solar-energySolar Energy - National Geographic Society

   www.nationalgeographic.org › encyclopedia › solar-energy

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   Apr 3, 2024 · Learn how solar energy is created by nuclear fusion in the sun and how it affects Earth's climate, life, and resources. Explore different ways of harnessing solar energy for human use, such as photovoltaics, concentrated solar power, and solar architecture.

4. www.britannica.com › science › solar-energySolar energy | Definition, Uses, Advantages, & Facts | Britannica

   www.britannica.com › science › solar-energy

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   May 14, 2024 · Solar energy is radiation from the Sun that is capable of producing heat, causing chemical reactions, or generating electricity. The total amount of solar energy incident on Earth is vastly in excess of the world’s energy requirements and could satisfy all future energy needs if suitably harnessed.

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5. www.nationalgeographic.com › article › solar-powerSolar Power Information and Facts - National Geographic

   www.nationalgeographic.com › article › solar-power

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   Learn how solar energy is harnessed from the sun's rays and used for various purposes. Find out the benefits, challenges, and trends of solar power technology.

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6. Videos

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     bbc.co.uk

     How does solar energy work? - BBC Bitesize

     Nov 24, 2023

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     Renewable Energy 101: How Does Solar Energy Work?

     Apr 23, 2019

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     What is Solar Power? | National Geographic

     Sep 28, 2017

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7. www.eia.gov › energyexplained › solarSolar explained - U.S. Energy Information Administration (EIA)

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   Using solar energy has two main benefits: Solar energy systems do not produce air pollutants or carbon dioxide. Solar energy systems on buildings have minimal effects on the environment. Solar energy also has some limitations:

8. www.eia.gov › kids › energy-sourcesSolar - Energy Kids: U.S. Energy Information Administration (EIA)

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   Source: NASA. Collecting and using solar thermal (heat) energy. An example of an early solar energy collection device is the solar oven (a box for collecting and absorbing sunlight). In the 1830s, British astronomer John Herschel used a solar oven to cook food during an expedition to Africa.

9. climate.mit.edu › explainers › solar-energySolar Energy | MIT Climate Portal

   climate.mit.edu › explainers › solar-energy

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   Aug 29, 2023 · Explainer. Solar Energy. Solar energy is a form of renewable energy, in which sunlight is turned into electricity, heat, or other forms of energy we can use. It is a “carbon-free” energy source that, once built, produces none of the greenhouse gas emissions that are driving climate change.