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MPPT - 55.8V array to 12V battery bank | 21 comments (21 topical, 0 editorial)

Re: MPPT - 55.8V array to 12V battery bank (3.00 / 0) (#19)
by Walt Er on Tue Aug 26th, 2008 at 08:25:28 AM MST
(User Info)

Yeah, it's not much power, but we're going to try to make it work. Using all DC, it's one efficient freezer, a few lights, a laptop, a phone, and a radio. We'll have a generator to re-charge the batteries on days when I use a heavier load like power tools, and a seperate dedicated solar pump for the well (or a hand pump - haven't decided yet).

I was using 3% wire loss, but I'll take your advice and use 2%. I'll think about the cheaper batteries too.

Once the system is built and running, I'll post my set-up from my solar powered laptop and let everyone know how it's working. -Walt

[ Parent ]

Re: MPPT - 55.8V array to 12V battery bank (3.00 / 0) (#20)
by scottsAI (user name at eml dot cc) on Thu Aug 28th, 2008 at 12:19:46 PM MST
(User Info)

Walt Er,

Good luck hope things work out!

Well
Have you looked into Rain water catchment?
Some states could be a problem, others OK.

Looked at NM, 2100sqft roof with 5,000 gal tank, supplies water 50gal/day for 4 people.
Overall much cheaper to do than a well, unless hand dug.

Have fun,
Scott.

[ Parent ]

MPPT - 55.8V array to 12V battery bank | 21 comments (21 topical, 0 editorial)

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