Renewable Energy

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Energy sources that are still in development.

Energy from sources that are constantly being formed.

Energy from heat in the Earth's crust.

Percentage of energy put into a system that does useful work.

Energy produced from moving water, which accounts for about 20% of the worlds electricity.

The use of temperature differences in ocean water to produce electricity

Energy from the Sun can be gathered by collectors and used to heat water or to heat a building.

Plant material, manure, and any other organic matter that is used as an energy source.