This Then they say: UK pumped hydro storage runs out in 22 hours. Well with average of 4.5 hours outage that is plenty of time. -890 The Spanish plant, and others like it, are what is called a power tower arrangement. The liquid salt is stored in a huge underground tank, and a small amount of liquid salt is circulated to the top of the tower, then heated and returned to the tank in a continuous loop. Its a very technically complicated process with lots of moving parts, such as valves and pumps. There are expensive filters which wear out, seals which wear out, expansion and contraction from heating and cooling which causes massive strain on the whole system the length of a pipe will change dramatically when you heat it, for example. The system described above is a VASTLY simpler system, if it performs as advertised. They are basically heating the salt directly in the storage tank, therefore eliminating the most complicated parts. Its really brilliant. "home energy top up online " and "electricity cost sydney " (include "home energy rating software", "home energy rater certification ", "how fast can solar powered cars go ", "electric home boilers ", "history of solar powered cars ", "Home geothermal energy pros and cons ", 12 Jul 2010 Coming on top of last month's announcement that Scotland's energy-saving home loans scheme has also ended, this leaves most Scots & Magnetic field in motor )