energy derived from sources that do not use up natural resources or harm the environment.
Renewable Energy Definition. Wind power is a form of renewable energy. The definition of renewable energy is much debated since the terms and definitions people choose have huge impacts on policy and regulations. People have been using renewable energy of one sort or another for hundreds of years. Noun. 1. alternative energy-energy derived from sources that do not use up natural resources or harm the environment. energy, free energy - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; energy can take a wide variety of forms. Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tides and geothermal heat—which are renewable (naturally replenished). Renewable energy technologies range from solar power, wind power, hydroelectricity/micro hydro, biomass and biofuels for transportation. Renewable energy is energy that is generated from natural processes that are continuously replenished. This includes sunlight, geothermal heat, wind, tides, water, and various forms of biomass. This energy cannot be exhausted and is constantly renewed. In order to define alternative energy we first need to define alternative energy sources. Alternative energy source is any source of energy that does not belong to traditional energy sources. Traditional energy sources are fossil fuels (coal, oil and natural gas).
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alternative energy definition