Hot Dry Rock

Hot Dry Rock geothermal energy from traditional cousins various underground. Based on an artificial underground heat exchanger, the heat from the high-temperature circulating water sluices extract. It uses existing technology, equipment and skills that were developed for the oil and geothermal energy.

The simplest HDR race consists of one injection well and two production plants well. The water flows developed from the injection and underground heat exchanger in the hot stones.

Hot water on the surface under pressure and used to cook, organic liquids. Water-cooled process of reintegration into the subterranean heat exchanger in a closed loop injection to get more heat. Geothermal Steam passes through the turbine to generate electricity

Geothermal Steam

 

Advantages

Net advantage of the race will be equivalent to reducing greenhouse gas emissions created by 2628000 tonnes of carbon dioxide per year if 300mW plant.

Financial capital cost

Every size plant could be built, but planned to remain economically viable facility 300mW minimum size. This is due to the auxiliary pump energy, water, transmission and distribution infrastructure, which must be built. 300mW plant will cost in the $ 600M USD does not include the transfer of the infrastructure, which will double the original price on Push to this number. Installation of water lines could Geothermal Steam add another $ 150MUSD to this number. The total cost for the first single race in the $ 1.85Billion USD. Other installations around $ 400 - $ 600M USD, depending on the success of this technology.