Posted by amdx on February 9, 2009, 12:17 pm
> > Your solution is an excellent one, provided the upper pond fills by
> > itself,
> > either through springs or a stream or even rain water. But if you have
> > to
> > generate the power to fill the upper pond, which would be the case, for
> > example, at our home, the solution is no longer "free".
> ==============================================
> >You need an extra 2KW of solar that gets 4 hr of sun to refill the top
> >pond.
>>No, I'll use my excess windpower. That makes
> once they finish cloning those mastadons we'll just all have giant
> tredmills hooked to generators. Problem solved.
Peta won't let that last very long!
Mike ;-)
Posted by Ron Rosenfeld on February 8, 2009, 9:44 pm
On Sun, 8 Feb 2009 20:02:19 +0000 (UTC), RED@ix.com wrote:
>No, I'll use my excess windpower. That makes it free.
In this particular NG, your message to which I replied was the first in the
thread. So any message you posted about having excess power available to
implement a pumped hydro system was not available to me.
How do the economics compare with heating the water directly by the excess
electricity; and/or energy storage using lead-acid batteries?
--ron
Posted by terryc on February 9, 2009, 3:09 am
On Sun, 08 Feb 2009 17:50:44 +0000, RED wrote:
> That problem has been solved for a long time. Just put in two ponds, one
> low and one high, and use hydropower when draining the high pond into the
> low pond. This is a completely free solution, and will generate plenty of
> electricity to run a water heater.
Lol, "two water tanks = unlimted electrical power".
Your entry for misinformation idiot* of the week is noted.
*It has to be weekly as we have some many survivalist.
Posted by Curly Surmudgeon on February 9, 2009, 5:59 am
On Mon, 09 Feb 2009 03:09:40 +0000, terryc wrote:
> On Sun, 08 Feb 2009 17:50:44 +0000, RED wrote:
>
>
>> That problem has been solved for a long time. Just put in two ponds,
>> one low and one high, and use hydropower when draining the high pond
>> into the low pond. This is a completely free solution, and will
>> generate plenty of electricity to run a water heater.
>
> Lol, "two water tanks = unlimted electrical power".
>
> Your entry for misinformation idiot* of the week is noted.
>
> *It has to be weekly as we have some many survivalist.
"RED" is EskWIRED trolling under a new nym.
--
Regards, Curly
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Arrest Bush
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Posted by Curly on February 9, 2009, 6:09 pm
> Suppose you want to heat a ton of water by 50 deg. C, e.g. from 10C to
> 60C. That will need 5e7 calories or about 2e8 joules. Suppose your high
> pond is 10 metres higher than the low one. Supposing everything is 100
> percent efficient, you'll have to allow 2000 tons of water to drain
> from the high pond to the low one through your turbines just to heat
> one tank of water. More realistically, allowing for inefficiencies,
> you'd probably need at least 5000 tons of water. That's the complete
> capacity of a pond 30 x 30 x 5 metres in size.
>
> So you've got to make a pretty big pond. And how are you going to fill
> it every time you need hot water?
I plan to use my surplus wind power. That is what makes it all free.
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> > itself,
> > either through springs or a stream or even rain water. But if you have
> > to
> > generate the power to fill the upper pond, which would be the case, for
> > example, at our home, the solution is no longer "free".
> ==============================================
> >You need an extra 2KW of solar that gets 4 hr of sun to refill the top
> >pond.
>>No, I'll use my excess windpower. That makes
> once they finish cloning those mastadons we'll just all have giant
> tredmills hooked to generators. Problem solved.