Spanish solar plant works at night too

Typical solar power plants stop working when the sun sets, but a new one in southern Spain, called Gemasolar, can stay awake all night: “During the day we capture the energy of the sun and we store that energy into a tank,” said Santiago Arias, a mechanical engineer who helped put Gemasolar into operation: “Then, whenever we want, regardless if it is day or night, we convert that energy into electricity.”

More at:
http://sun2home.co.uk/spains-round-the-clock-solar-power-plant/500492