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Old 07-07-2013, 01:05 AM   #134 (permalink)
oil pan 4
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Originally Posted by IamIan View Post
Utility scale solar storage does not use Lead ... not one such instance that I am aware of , in the entire history of utility scale solar ... because lead is such a horribly bad candidate for that function... why trade the 97% cycle efficiency of some thermal storage systems ( see above ) for ~67% cycle efficiency of lead .... that makes no sense.
But isn't most of the new solar generating capacity PV?
If so you cant really use thermal storage with PV, cost effectively.

If you are working with a solar driven steam turbine then thermal storage is a great idea and does not require the smart grid.

As far as storage batteries you cant use lithium, its far too expensive. You can use Ni it will be expensive, but then there will be a lot less around for electric car and hybrid batteries.
Take away lithium and nickel whats left?
On the other hand there is no shortage of lead for the time being.
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