The sun is a constant natural source of heat and light. Sunlight can be converted to electricity. Solar energy is energy that comes directly from the sun. I want more information. Biomass is a source of renewable energy because the natural process of photosynthesis constantly produces new organic matter in the growth of trees and plants.
Photosynthesis stores the sun's energy in organic matter.
That energy is released when biomass is used to make heat, electricity or liquid fuels. I want more information. The wind blows because of natural conditions of climate and geography. Historically, wind power was used to supply mechanical energy, for example to pump water, grind grain or sail a boat. Today, wind power is primarily a source of electricity.