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DOE Office of Energy Efficiency and Renewable Energy

DOE Office of Energy Efficiency and Renewable Energy

Science Facts Written by DOE Office of Energy Efficiency and Renewable Energy

Chemistry

Hydrogen - The Simplest Element

Hydrogen is the simplest element; an atom consists of only one proton and one electron. It is also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't ... Continue reading

Fuel cell.
Biology

Bioenergy Basics

Biomass (organic matter) can be used to provide heat, make fuels, and generate electricity. This is called bioenergy. Wood, the largest source of bioenergy, has been used to provide heat for thousands ... Continue reading

Engineering

Hydropower Basics

Flowing water creates energy that can be captured and turned into electricity. This is called hydropower. Hydropower is currently the largest source of renewable power, generating nearly 10% of the ... Continue reading