Electricity is being produced from low-temperature waste geothermal heat at a gold mine in Nevada, offering the potential for broader application of the technology at mines and oil and gas operations in many areas of the country.
The project is supported by a grant from the US DOE Geothermal Technologies Office and will be generating electricity this
year for less than 6¢ a kilowatt/hr, with ElectraTherm's
new plug-and-play technology. DOE said "Building on this first-of-its-kind success, this
emission-free electricity is the first in the nation to be generated from
cost-free geothermal brine at a mine operation, and the technology has the
potential for extremely broad application in many parts of the country,
including oil and gas operations."
Treehugger.com notes that waste heat offers more power potential than all renewable resources combined.