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RENEWABLE ENERGIES

 


BY EDER RUIZ:



Welcome to this science blog about some of the most important renewable energies:

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WIND ENERGY

  Wind Energy Wind energy (or wind power) refers to the process of creating electricity using the wind, or air flows that occur naturally in the earth’s atmosphere. Modern wind turbines are used to capture kinetic energy from the wind and generate electricity. There are three main types of wind energy: 1) Utility-scale wind: Wind turbines that range in size from 100 kilowatts to several megawatts, where the electricity is delivered to the power grid and distributed to the end user by electric utilities or power system operators. 2)  Distributed or "small" wind:  Single small wind turbines below 100 kilowatts that are used to directly power a home, farm or small business and are not connected to the grid. 3) Offshore wind:  Wind turbines that are erected in large bodies of water, usually on the continental shelf. Offshore wind turbines are larger than land-based turbines and can generate more power. How wind turbines work When the wind blows past a wind turb...

BIOMASS ENERGY

 Biomass Energy Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, above. The energy from these organisms can be burned to create heat or converted into electricity. How Biomass Energy Works Heat Wood pellets Wood is one of the simplest and oldest forms of biomass energy. Even cavemen burned wood to keep themselves warm and cook meat. Biomass heating systems can burn wood pellets or other biomass materials to provide heat for homes and businesses. Electricity Biomass can be used to make electricity, which is what's done in a waste-to-energy plant. Waste, or garbage, has a lot of once living things mixed into it like food scraps, paper, and grass clippings. This waste can be burned to heat water, which turns into steam. The steam turns a turbine, which is a machine with blades that spin like a fan. The spinning blades transfer energy to an electricity generator that ma...