Creating power for your home, off grid.
Emphasis on nuts-n-bolts, hands-on projects.
ok guys point me in the right direciton. i have very limited funds and have to build this cheap. really cheap. the batteries i can get for free. but the rest i have to buy.
Look through Home Power magazine, or any other reputable RE wholesaler and you'll see PV's for anywhere from $2.25 to 4.00 a watt. And these are panels that (mostly) all carry a 25 year warranty. What is HF offering if your panels go dead or perform poorly in a year or two?
Also, if the Hawkers are AGM (I assume that they are) you ABSOLUTELY have to have an effective charge controller. These batteries will NOT tolerate overcharge conditions. They will vent and be destroyed if the panels continue to charge them once they are full.
Also be aware that AGM batteries don't like to sit around partially discharged, they sulfate particularly quickly. Be sure to build your system with the load and DOD in mind and provide sufficient panels or backup charge sources (AC power, etc) to keep them topped up and happy on a regular basis.
Any more than two batteries in parallel is asking for trouble, it's very difficult to properly balance three or more batteries in a parallel string. If they are free, I guess you could afford to kill some by experimenting.
- Dennis The Bus Dweller
- Seasoned Nomadicista
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- Joined: Mon Nov 15, 2004 9:33 am
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Dennis the bus dweller N.Y.
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