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From: stevek@blenny.UUCP (Stephen Kogge)
Newsgroups: sci.energy,sci.electronics,sci.physics
Subject: Re: solar cells
Message-ID: <1146@blenny.UUCP>
Date: 29 Dec 90 16:32:18 GMT
References: <1990Dec17.190857.16559@engin.umich.edu> <1990Dec28.210436.10601@zoo.toronto.edu> <939@venice.SEDD.TRW.COM>
Organization: Underwater Imaging
Lines: 11


	One point on the curve. I have a 30W (18" X 30") array. It charges
a car battery that I keep outside. Here in Maryland it cannot produce enough
total charge to keep 1 2.4W 12 volt fan running all the time.
	My meters show ~2 Amps (24W) in full sunlight. The array does
not track the sun and from about 3pm on the charge drops off to a few
milliamps. During the winter I have to watch the voltage on the battery and
let it charge with no load for a few days. In the summer I end up putting
a car battery charger on the battery a couple of times.

Steve Kogge