US "buffeted each year" by more renewable energy than the electricity used

"The United States is buffeted each year by 4,000 terawatts of solar power, 1,800 terawatts of wind power, 1,170 terawatts of wave power, and 17 terawatts of tidal power - far more than 3.9 terawatts of electricity that the country uses annually" (page 44). [THE MEANING OF "BUFFETED" IS UNCLEAR. PLEASE CONTACT AUTHOR]

Source: David Ferris, "Electrify the Elements," Sierra Magazine, 98, no. 5 (2013), 44.

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