What makes geothermal a reasonable growth path for residential use despite the currently tiny usage there is that geothermal heat pumps share a lot of equipment with the air-cooled heat pumps that are already in wide use in more temperate parts of the US. So it's not like solar where there is a lot of manufacturing to ramp up.
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momijizukamori
no subject
Date: 2009-09-09 03:54 pm (UTC)