What is renewable energy in simple words?
Renewable energy, often referred to as clean energy, comes from natural sources or processes that are constantly replenished. For example, sunlight or wind keep shining and blowing, even if their availability depends on time and weather.
What is renewable energy example?
Renewable energy sources are energy sources that are always being replenished. … Some examples of renewable energy sources are solar energy, wind energy, hydropower, geothermal energy, and biomass energy. These types of energy sources are different from fossil fuels, such as coal, oil, and natural gas.
What is renewable energy system?
Renewable energy systems can be classified under the following categories: solar, wind, hydro, biomass, geothermal, and ocean. There are various energy conversion systems to transform these renewable sources into useful products. Solar energy can be used as thermal or converted into electrical work.
What is renewable energy used for?
All sources of renewable energy are used to generate electric power. In addition, geothermal steam is used directly for heating and cooking. Biomass and solar sources are also used for space and water heating. Ethanol and biodiesel (and to a lesser extent, gaseous biomethane) are used for transportation.
Why is renewable energy not used?
Why don't we use renewable energy all the time? Unlike natural gas and coal, we can't store up wind and sunshine to use when we need to make more electricity. … Another reason we use fossil fuels, like coal and natural gas, is because they're cheaper. It costs more money to make electricity from wind or sun.
How do you say renewable resources?
0:020:11How to pronounce RENEWABLE in British English – YouTubeYouTube
What are the 7 alternative sources of energy?
What are 7 Types of Renewable Energy?
- Solar. By using photovoltaic cells to capture and convert the sun's rays into electricity, solar panels transform light into usable energy. …
- Wind Energy. …
- Hydroelectric. …
- Ocean Energy. …
- Geothermal Energy. …
- Biomass. …
- Hydrogen.