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History, Design, and Applications
Solar Hot Water SystemsBen Gravely - Holocene Technologies
Blog <http://www.solarhotwater-systems.com/>
• A (very) Brief History of Solar Energy
• Residential & Commercial Solar Examples
• How it Works
• Simple Economics
Antoine Lavoisier Solar Furnace - 1774Melted Platinum at 3222ºF
Brief History
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Augustin Mouchet, Paris Exposition, 1878Solar steam engine pumped 500 gallon per hour.
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Brief History
Clarence Kemp’sBatch Solar Water Heater
1892
The Modern EraPhase 1 - The Beginning
1892 - 1950
... we should be using Nature's inexhaustible sources of energy - sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that.
Thomas Edison - 1931
Conversation between Henry Ford and Harvey Firestone quoted in Uncommon Friends : Life with Thomas Edison, Henry Ford, Harvey Firestone, Alexis Carrel & Charles Lindbergh (1987) by James Newton, p. 31
First Commercial Solar System in US
The first modern flat plate solar collector
invented by William Bailey in 1909
• used separate storage tank• company was called Day & Night
By 1941 there were 60,000 Day & Night solar water heaters in Florida
By 1900 there were 1600 solar water heaters in southern California
Panoma Valley, CA, 1911 Laundry in FL in the 1930s
California - Cheap natural gas ended the solar era by 1920
The end of Phase I
Energy Prices declined steadily until the 1970s
And Then......
Florida - Cheap electricity after WWII ended the solar era in Florida by 1950
1973 & 1979 Gas Lines
Two oil embargos occurred - in 1973 and 1979
US energy security was quickly destroyed
1979 Solar System on White House
“A generation from now this solar heater can either be a curiosity, a museum piece, an example of a road not taken or it can be just a small part of one of the greatest and most exciting adventures ever undertaken by the American people.”
“It is a problem we will not solve in the next few years, and it is likely to get progressively worse through the rest of this century.” Pres. Jimmy Carter
The Modern Era - Phase II - Camelot1978-1986
“The moral equivalent of war”
Pres. Jimmy Carter Goals
• Energy independence
• Reduce Pollution of fossil
fuels
• Long term energy planning
• Created the Dept of Energy
• Started renewable energy
incentives
Energy Independence
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