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Question by  barkley20 (6)

What is a "zero energy" building?

Does that mean they don't expend any energy?

 
+7

Answer by  jessgirl2 (319)

A "zero energy building" is a building that produces energy equal to what it uses, usually from a renewable source such as hydroelectric, wind, or solar power. Zero carbon emissions are usually also part of the equation.

 
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