Geothermal energy can be used for electricity production as well as space or process heating applications. The process of electrical production uses fluids heated by the Earth to run a generator. The relatively high temperature and high-pressure fluid is expanded across a turbine to provide power to a generator, producing electricity.

For a geothermal resource to be capable of economically-viable power production, a number of attributes must be present:

  1. a heat source,
  2. a reservoir of geothermal fluids with sufficient permeability and porosity,
  3. sufficient heat conduction within the formation and
  4. high enough fluid flow.

Alaska Energy Authority no longer funds Geothermal power projects. We look forward to bringing the Geothermal program back online once funding is available.