One thing that hinders solar power plants is the notion of how long stored could serve a community. Especially when the sun sets, these power plants are bound to have various power capacities to aid people in their electricity needs. But it seems that this is not the case in Seville, Spain.
With the Gemasolar Concentrated Solar Power plants, a huge array of mirrors to heat a molten salt storage system at its central tower to run steam for turbines allows the 19.9MW plant to deliver electricity 24/7. The solar powered plant was designed by Torresol Energy and officially opened last May.
The central tower is surrounded by 2,650 heliostats (mirrors) that stretch approximately 185 hectares. The mirrors concentrate the solar radiation at a ratio of 1000:1 and at the central receiver in the 140 m (450 ft) tower temperatures can exceed 500-degrees Centigrade (932°F). The power plant currently supplies electricity to 25,000 homes and according to the makers, more power plants of the same nature are coming out soon.