Solar energy use

Solar energy can be applied in many ways, including to:

  • Generate electricity using photovoltaic solar cells.
  • Generate electricity using concentrated solar power.
  • Generate electricity by heating trapped air which rotates turbines in a Solar updraft tower.
  • Heat buildings, directly, through passive solar design.
  • Heat foodstuffs, through solar ovens.
  • Heat water or air for domestic hot water and space heating needs using solar-thermal panels.
  • Heat and cool air through use of solar chimneys.
  • Generate electricity in geosynchronous orbit using solar power satellites.




Best and Biggest


The 11 megawatt PS10 solar power tower in Spain produces electricity from the sun using 624 large movable mirrors called heliostats.



Solar Energy Generating Systems (SEGS) is the largest solar energy generating facility in the world. It consists of nine solar power plants in California's Mojave Desert. The plants have a 354 MW installed capacity.

Solar plant 2 GW will be built in Mongolia. The project is expected to be the largest in the world when completed in 2019. The first phase calls for 30 megawatts, with construction slated to begin in June 2010. The second and third phases are expected to be completed in 2014, bringing the project to 870 then 1,000 MW. The fourth stage would double the capacity to 2,000 MW by 2019.


In Europe, the largest is the Spanish Andasol 1, generating 50 MW.



The largest solar plant in operation in Bulgaria is situated in the village of Paunovo – 1 MW.


A 2 MW solar plant will be put into operation till the end of the year. It is developed by the company Solarpro and constructed with photovoltaic panels made in Solarpro’s factory in Silistra.