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Over 60,000 solar water heaters in place in America.
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The biggest windmill ever installed is erected in Vermont with 53 meter blades. This wind turbine was the Smith-Putnam wind turbine.
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A part of the Smith-Putnam wind turbine breaks and the machine is shut down.
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The Smith-Putman Wind machine is broken
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The Smith-Putnam machine is restarted but due to small cracks in the blade, one blade broke and the turbine was shut down forever.
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The 'solar cell' is developed
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First solar powered, 2-way radio, coast-to-coast conversation takes place between the U.S. Army Signal Corps in New Jersey and California.
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Spurred by the first oil embargo, interest in terrestrial applications of photovoltaics blossoms.
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More than 20 companies start production of flat plate solar collectors in the U.S.
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Second oil embargo strengthens solar industry.
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Wind farms are developed for large scale production in the United States and Europe.
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First solar cell power plant dedicated at Natural Bridges National Monument, Utah.