- Only 10% of energy in a light bulb is used to create light. Ninety percent of a light bulb’s energy creates heat. Compact fluorescent light bulbs (CFLs), on the other hand, use about 80% less electricity than conventional bulbs and last up to 12 times as long.g
- Refrigerators in the U.S. consume about the same energy as 25 large power plants produce each year.e
- There are two basic groups of energy: renewable energy (biomass, geothermal, solar, water, and wind power) and nonrenewable (fossil fuels coal, oil, natural gas, nuclear). Three quarters of the world’s energy is generated by burning fossil fuels.h
- Enough sunlight reaches the earth’s surface each minute to satisfy the world’s energy demands—for an entire year.d
- The amount of energy Americans use doubles every 20 years.g
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55 Interesting Facts about Energy