RE: [hreg] Staying off grid
- I'd like to thank all our solar industry people who have always been very
generous to volunteer information to HREG members. Next year I would like
to make it a goal for us to help promote them more to the community, in a
fair and even way, of course.
From: Andrew McCalla [mailto:andrew@...]
Sent: Wednesday, October 20, 2004 11:45 AM
Subject: [hreg] Staying off grid
I concur with John, it all starts with a load analysis.
For an excellent treatment of this concept I would start with these articles
@ Home Power. I like, in particular, the second one by Ben Root:
Most inverters you will likely be looking at will have an automatic
generator start function as well as AC to DC charger with programmable
profile. So, if you are trying to keep costs down from the get-go, focus on
that ultimate battery you will need and an inverter that will satisfy the
preliminary loads, while making sure that it is compatible with modular
expansion to accommodate future loads. At this point in the game you don't
need a charge controller.
What you do need is an AC charging source: Either a temporary grid drop,
perhaps from a neighbor via Romex (a 20 Amp 120 VAC circuit will do quite a
bit for battery maintenance) or, more likely in your case it sounds like, a
good solid, low rev. generator that will last you years.
Let me know if we can help with this project in any way and meanwhile, good
luck with the wood-butchers.
Andrew H. McCalla
Meridian Energy Systems
2300 S. Lamar, Ste. 107
Austin, TX 78704
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