BBC News: Molten metal batteries for the grid

[Ed Dunlop]

A good example of an already running water based system is PECO Energy's "Muddy Run Pumped Storage" facility north of Philadelphia near the Delaware River. 

Ed N3DJH
--
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> On Sep 21, 2014, at 6:35 PM, kf4hcw <kf4hcw at lifeatwarp9.com> wrote:
> 
>> On 2014-09-21 15:26, William Danielson wrote:
>> I have heard from some folks who worked where they had a forward and
>> reverse hydroelectric setup...off peak they would pump water up above
>> a dam, on peak they would release it to power alternators.
> 
> I saw this a year ago (maybe more).
> 
> I wonder which loses less energy -- pumping water upstream, or keeping
> molten metal batteries hot (plus inversion losses).
> 
> Of course, you don't have the opportunity to do the water trick
> everywhere... so there's that.
> 
> _M
> 
> -- 
> kf4hcw
> Pete McNeil
> lifeatwarp9.com/kf4hcw
> 
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