Thursday, July 22, 2010

Yes, the Guardian again...

The Guardian writes:

The world's first molten salt concentrating solar power plant
'Archimede' demonstration solar plant in Sicily becomes the first to use molten salts to store energy overnight

Here's Wikipedia on Solar Two from 1995:

Solar Two used molten salt, a combination of 60% sodium nitrate and 40% potassium nitrate, as an energy storage medium instead of oil or water as with Solar One. This helped in energy storage during brief interruptions in sunlight due to clouds. The molten salt also allowed the energy to be stored in large tanks for future use such as night time.Solar Two proved it could run continuously around the clock producing power.

[Update: Carlo, the author, responds. It's the Guardian's fault, not his ;-) I'm not surprised.]

1 comment:

  1. I'm not exactly sure, but the Wikipedia article states that they used salt as the storage medium on Solar Two. Did they use it to transfer the heat from the collector to the storage/power generation section as well as for storage, or just for storage with oil as the transfer medium?

    The Enel plant will be using it for both heat transfer and storage.