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Subject: permaculture
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- From: "John Schinnerer" <john@eco-living.net>
- To: "permaculture" <permaculture@lists.ibiblio.org>
- Subject: RE: [permaculture] energy futures
- Date: Mon, 25 Aug 2003 23:21:22 -0700 (PDT)
Aloha,
> 1) Ground Source Heat pumps - cost Can$10,000 - 15,000 results 70% energy
> use reduction. Now 1/3 of all new houses in Switzerland and can be 100%
> fossil fuel free depending on where the electricity comes from. High rates
> of penetration in Austria too.
I have heard reports of reduced/falling efficiency now that these have been in
use some places for a long enough time to show some longer-term consequences.
I would think lots more of them at higher density would only accelerate a slow
but steady near-surface ground temperature change.
> 2) Hot Water Districts: very heavily used in Denmark. Lots of cities still
> have steam but hot water districts have been shown to be much cheaper and
> more efficient.
What's the mechanics of a "Hot water district?"
> 3) Biomass Combined Heat and Power: very heavily used in Denmark. Up to 90%
> efficiency.
And what's the mechanics of these, too (regardless of fuel source)?
thanks,
John S.
John Schinnerer - MA, Whole Systems Design
------------------------------------------
- Eco-Living -
Cultural & Ecological Designing
People - Place - Learning - Integration
john@eco-living.net
http://eco-living.net
-
[permaculture] energy futures,
georg parlow, 08/23/2003
-
Re: [permaculture] energy futures,
Kelly Finigan, 08/23/2003
- Re: [permaculture] energy futures, John Schinnerer, 08/24/2003
- Re: [permaculture] energy futures, Paul Kosuth, 08/24/2003
-
RE: [permaculture] energy futures,
Harold Waldock, 08/25/2003
-
RE: [permaculture] energy futures,
John Schinnerer, 08/26/2003
-
Re: [permaculture] energy futures,
georg parlow, 08/26/2003
-
Re: [permaculture] energy futures,
Kelly Finigan, 08/26/2003
-
Re: [permaculture] energy futures,
John Schinnerer, 08/27/2003
- Re: [permaculture] energy futures, Kelly Finigan, 08/27/2003
- Re: [permaculture] energy futures, John Schinnerer, 08/27/2003
-
Re: [permaculture] energy futures,
John Schinnerer, 08/27/2003
-
RE: [permaculture] energy futures,
Harold Waldock, 08/27/2003
- RE: [permaculture] energy futures, Kelly Finigan, 08/29/2003
-
Re: [permaculture] energy futures,
Kelly Finigan, 08/26/2003
-
Re: [permaculture] energy futures,
georg parlow, 08/26/2003
-
RE: [permaculture] energy futures,
John Schinnerer, 08/26/2003
-
Re: [permaculture] energy futures,
Kelly Finigan, 08/23/2003
- <Possible follow-up(s)>
- FW: [permaculture] energy futures, Harold Waldock, 08/25/2003
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