[XCSSA] Solar and Green events in SA

[xcssa@xcssa.org]

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On Tue, May 15, 2007 at 02:27:31PM -0500, xcssa-admin@xcssa.org wrote:
> I think there ought to be "thermal =20
> dumping" capacity (such as a really big outdoor heat exchanger)

There's a tiny Austin company who makes a system - I think it's a heat
pump system - that uses the water mains as a heat dump.  Basically
they're buried, and water can carry a lot of heat away (compared to
air), and so it just exchanges heat with a pipe containing mains
water, but doesn't actually touch the water, and then lets it go back
into the mains (theoretically not accruing any water usage costs).

Also, Eneco has a semiconductor technology they're working on that
does direct conversion of heat to electricity (heat isn't always
unusable energy, as a steam engine or our demand for fossil fuels
shows).

> Heat pump water heating could be as big a win as solar (for those =20
> like me who have electric water heating).  It could cut the energy =20
> cost by 60%, which is about all some people get from solar (because =20
> of the need for backup heat).  But manufacturers are few and far =20
> between, mostly cheap looking, and they heat slowly.  Better yet =20
> would be a combined A/C and water heating heat pump system.  In the =20
> summer, your hot water could be free.  But that's a dream system, =20
> nobody actually makes it yet.

Now that's an interesting challenge...
--=20
"That is not dead which can eternal lie, and with strange aeons even
 death may die." - H.P. Lovecraft, The Call of the Cthulhu
<URL:https://www.subspacefield.org/~travis/> -><- dharma <>< advaita
For a good time on my UBE blacklist, email john@subspacefield.org.

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