[Greenbuilding] Abandoned mine turned into a pumped storage system...

[John Straube]

I too would keep an open mind on this.  Pumped storage has a round trip efficiency far less than 100%, but then so do all storage methods.  Even if we can get 75%, that is a good deal as we often have, and likely will in future have more, low-cost renewable energy generated that can be used at the same time.  Large scale storage of some sort seems like a decent option.

On 2013-02-23, at 3:31 PM, Gordon Howell -- Howell Mayhew Engineering <ghowell at hme.ca> wrote:

> Hello Rob:
> 
> I'd be interested in your comments about why you think it is a greenwashing scam.
> 
> Note that the headline says "5x the size", but the article says "5x the height"... its a big difference and then adds "though with a fraction of the volume".
> 
> +Gordon Howell, P.Eng.
> Edmonton
> 
> From: RT <archilogic at yahoo.ca>
> Subject: [Greenbuilding] Greenwashing Mega-scam(s)
> 
> Don't ask me why 'cuz I don't know but the "CFL bulbs/mercury" thread made me think of a story I saw this week about an initiative to redevelop a former open pit mine (owned/operated by Bethlehem Steel, in Southeastern Ontario to turn it into a "storage battery five times the size of Niagara Falls".
> 
> http://tinyurl.com/a8u2gl4
> 
> 
> This "storage battery from open pit mine hole" hasn't yet been implemented
> but I wouldn't be surprised if it too is allowed to proceed.
> 
> -- 
> === * ===
> Rob Tom
> Kanata, Ontario, Canada
> 
> 
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John Straube
www.JohnStraube.com