Posted by petersonra on June 6, 2005, 7:04 pm
keep in mind that it costs something like 50 cents to store a kw-hr
worth of electricity in a storage battery. if you buy power for 10
cents, store it for 50 cents, and sell it for 30 cents, you have lost
30 cents/kw-hr.
Posted by wmbjk on June 7, 2005, 1:38 pm
On 6 Jun 2005 16:04:22 -0700, petersonra@aol.com wrote:
>keep in mind that it costs something like 50 cents to store a kw-hr
>worth of electricity in a storage battery.
>if you buy power for 10
>cents, store it for 50 cents, and sell it for 30 cents, you have lost
>30 cents/kw-hr.
Exactly right! Except for two facts - when selling back, the idea is
to avoid or eliminate storage, which doesn't cost anything near 50
cents regardless.
Bob, where have you been lately? Not at home power college
apparently... :-( After all these years of giving advice, are you
ever going to actually *do* anything with home power? Anyway, sorry to
have to tell you - gimmie pizza girl benji took over your job while
you were gone. If you'd like to challenge him, look for the thread
where he's pondering the great mysteries of the low tub weights and
high spin speeds of front-loading washing machines
Wayne
Posted by William P. N. Smith on June 7, 2005, 2:05 pm
petersonra@aol.com wrote:
>keep in mind that it costs something like 50 cents to store a kw-hr
>worth of electricity in a storage battery.
Where do you get those numbers? I did a SWAG, and came up with 5
cents/KWHR at 100% efficiency, and i can't believe there's an order of
magnitude more costs and/or inefficiencies in there...
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>worth of electricity in a storage battery.
>if you buy power for 10
>cents, store it for 50 cents, and sell it for 30 cents, you have lost
>30 cents/kw-hr.