Capturing more heat from low-temp resources to aid geothermal power

Geothermal power is cost effective, reliable, and environmentally friendly, but it has previously been limited to geographic areas near tectonic plate boundaries. New technologies, such as that employed in the Raser low-temperature binary geothermal plant, promise to expand the opportunities for geothermal plants. Now scientists at the Department of Energy's Pacific Northwest National Laboratory (PNNL) have devised a method for capturing significantly more heat from low-temperature geothermal resources to further boost the possibility of virtually pollution-free electricity.

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