Monday, July 20, 2009
Solar thermal gas turbine hybrids are the major solution
Unless we can get geothermal to work in more places... and ironically, improvements in drilling for oil are allowing us to drill really deep to where there might be exploitable geothermal... the real solution in sunny areas will probably turn out to be solar thermal with gas turbine back up. The solar thermal can produce a huge amount of heat and store that heat, for example, underground... a kind of geothermal, I suppose, but storing the heat from the Sun in the Earth rather than extracting heat from the Earth... which has the advantage of being able to provide power in the evenings and for several days when it is cloudy... with a gas turbine backup for when it is cloudy for too long.
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