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Jim Letourneau's Blog

Investing, Technology, Travel, Geology, Music, Golf. I think that covers it.

PTTC Trivia

More great trivia from the PTTC.

When and where was the first successful demonstration of produced energy from geothermal sources?In 1904 in Tuscany, Italy, Prince Piero Conti lit five light bulbs from a small generator attached to a steam engine in the Larderello steam fields. The success of this demonstration of geothermal power led to the 1911 installation of a geothermal power plant in one of the world's most productive geothermal areas.