Geothermal energy is a proven resource for direct heat and power generation.
It meets a significant portion of the electrical power demand in several developing countries. Individual geothermal power plants can be as small as 100 kW or as large as 100 MW depending on the energy resource and power demand. The technology is suitable for rural electrification and mini-grid applications in addition to national grid applications. Direct use of geothermal heat can boost agricultural and aqua-culture production in colder climates and supply heat for industrial processes that can add value to local primary products. Geothermal resources may be especially important and significant in developing nations where no indigeneous fossil fuel resources exist such as oil, coal or natural gas.