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permaculture - Re: [permaculture] Inverter in a battery-less system?

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  • From: christopher nesbitt <christopher.nesbitt@mmrfbz.org>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] Inverter in a battery-less system?
  • Date: Thu, 14 May 2009 11:54:39 -0600

You need an inverter to make the DC electricity from your panels AC.
On May 14, 2009, at 9:18 AM, John Fritz wrote:




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>
Message-ID: <BLU0-SMTP790E11E7085CCC5AA42125A7600@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

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.





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_____________________________
Christopher Nesbitt

Maya Mountain Research Farm
San Pedro Columbia, Toledo
PO 153 Punta Gorda Town, Toledo
BELIZE,
Central America

www.mmrfbz.org







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