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Well, if had been set up at 48V instead
of 24V, it would have been a well-designed system. Would have cost
less, too - two parallel strings of batteries instead of four for
the same capacity, and three controllers instead of five. But as
it is...
Your array is large enough to achieve roughly a C/10 rate when charging (8,000W/24 Vnom = 333 A; 820 A/hr X 4 strings (shudder) is 3,280 A/hr; 3,280/333 = C/9.8), so that you can set a fairly strong charge rate. I'd do 29.2-29.4, depending on loads, 4 hours of absorption with a Done Amps at ~2% (66-75A) and float at 26.6-26.8. EQ at 31.2, manual initiation. Having stuck my neck out, now let me learn from the rest of you. Allan
Allan Sindelar
On 4/29/2013 3:15 PM, Wayne Irwin wrote:[email protected] NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer Positive Energy, Inc. 3209 Richards Lane (note new address) Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com
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