Smart Grids, Solar Power and Renewable Energies

Geothermal Energy

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Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy of the Earth's crust originates from the original formation of the planet and from radioactive decay of materials. Sources with temperatures of 30–150 °C are used without conversion to electricity as district heating, greenhouses. As heating is cost-effective at many more sites it is moved further for electricity generation purpose. Geothermal heating applications are highly dependent on the emissions intensity of the neighbouring electric grid. Geothermal power is considered to be renewable because any projected heat extraction is small compared to the Earth's heat content. Geothermal power is also considered to be sustainable thanks to its power to sustain the Earth’s intricate ecosystems.