Could hot rocks provide enough electricity to equal the amount our country currently receives from nuclear power? Maybe so, according to an encouraging article in the New York Times, which reports that new technologies could one day soon tap geothermal heat now locked in deep layers of granite stone. The report, based on a new Energy Department study, says that by drilling holes 2 to 3 miles deep into granite, water could be pumped in and heated to 400 degrees or more, and then used to generate steam and electricity before being recirculated in the rock below. Such plants are already operating in Europe and Japan, and could provide 10% of our nation’s electricity by 2050. Hot news, indeed.
July 23, 2008 by David Rothbard,
David Rothbard is co-founder and President of CFACT.