Since all market and scientific attention has been focused on the higher-temperature geothermal opportunities both within the U.S. and internationally, there is no real assessment of the size of the lower-temperature geothermal market opportunity that PwrCor’s technologies and techniques are now opening up. Best estimates place the size of the market at least 3 times the existing opportunity, or over 20,000 Megawatts (20 Gigawatts) in the U.S. alone – and possibly as great as 10 times the existing market. PwrCor can help clients in two major ways – (1) provide solutions to the new and totally unexploited low-grade geothermal market, and (2) improve the efficiency of the existing high-temperature geothermal installations by tapping the remaining waste heat (bottoming cycle) after the primary heat cycle is complete. Especially attractive are geothermal and other wells which were drilled at great expense but which yielded heat flows of too low a temperature or inadequate volume. These typically get capped and written off; in many cases, this sunk cost can now be recouped.
There are enormous and largely unexploited low-grade geothermal heat sources throughout the United States. Most of these have been identified and mapped. These vast geothermal resources are as yet untapped because older competing technologies are incapable of converting low volume heat flows of low-grade heat into power. This will now change.