British thermal units (Btu) - U.S. Energy Information ...
A single Btu is very small in terms of the amount of energy a single household or an entire country uses. In 2019, the United States used about 100.2 quadrillion Btu of energy. Written out, 1 quadrillion is a 1 followed by 15 zeros: 1,000,000,000,000,000. Why use British thermal units?
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