GeoThermal Power Plant
Thermal or electrical power produced from the thermal energy contained in the Earth (geothermal energy). Use of geothermal energy is based thermodynamically on the temperature difference between a mass of subsurface rock and water and a mass of water or air at the Earth's surface. This temperature difference allows production of thermal energy that can be either used directly or converted to mechanical or electrical energy.
Wind Power Plant
Wind power is extracted from air flow using wind turbines or sails to produce mechanical or electrical power.
Hydro Electric Power Plant
Hydropower or water power is power derived from the energy of falling water and running water, which may be harnessed for useful purposes.
Solar Power Plant
Solar power plant is based on the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.