permaculture

[John Fritz <johnfritz77@yahoo.com>]

I don't understand why one would need an inverter in a grid tie battery-less 
system?   If I am getting my juice from the grid, it is already AC.  Why 
would I need to invert it to anything else.

John Fritz, NW Arkansas.

Message: 3
Date: Tue, 12 May 2009 11:51:07 -0600
From: Stephen Sherman <spsherm@msn.com>
Subject: Re: [permaculture] batteries vs grid-tie
To: permaculture <permaculture@lists.ibiblio.org>
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I can't seem to find the original post, but here are a few thoughts...

Batteries add to the cost of a system, but they provide power when the 
grid is down. Not only from the power they store, but also because many 
(perhaps most) grid connect/battery-less inverters won't invert if the 
grid is down, even if your PVs/wind are making electricity. So it really 
depends on what you want out of your system. Do you need electricity 
when the grid is down? Do you need your AE system to act as a UPS for 
some critical equipment? If so, you probably will need some batteries on 
the system and an inverter designed to use them.





>From scott@permaculture.org  Thu May 14 12:25:33 2009
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From: "Scott Pittman" <scott@permaculture.org>
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I'm not sure how this is relevant in any fashion!  Share your secret
Lawrence, surely it's not the technology!

Scott Pittman
Director
Permaculture Institute
www.permaculture.org
-----Original Message-----
From: permaculture-bounces@lists.ibiblio.org
[mailto:permaculture-bounces@lists.ibiblio.org] On Behalf Of Lawrence F.
London, Jr.
Sent: Thursday, May 14, 2009 12:56 AM
To: permaculture
Subject: [permaculture] Watch


Broaden your horizons...

YouTube - TAG Heuer Monaco V4
http://www.youtube.com/watch?v=g2lT8yhwP2Y
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