They heat oil and then from there on, it’s a conventional power block. Upvc Doors and UPVC windows are also available. You simply pass that oil through a steam generator, it generators and drives a conventional power block, Rankine cycle power block – conventional.
The only thing that’s different here is the steam generator and the oil loop in this plant. The Andasol plants in Spain, I mentioned Spain a minute ago, they’re driven by the feed-in tariff. They were limited to 50 megawatt size – capital invested about 300 million Euros.
They have thermal energy storage in the form of two-tank molten salt system that uses a sodium potassium nitrate salt. They have about 28,500 tons of molten salt in this plant toget 7 full-load hours of storage.They went to this because they could, and because it increases the revenues from the plant more than it cost them to put it in.