| I have 14 panels at 115 watts at 17.1 volts and 6.73 amps each, and 12 panels at 200 watts at 18.1 volts and 11.05 amps , and 9 panels at 195 watts at 27.1 volts and 7.2 amps and 6 at 110 watts at 17.2 volts and 6.42 amps for a total of 41 panels at 6425 watts.
Right now i feel I'm loosing power because they are set up like this, the 115 watt panels 12 of them are set up in series of 4 so there are 3 sets giving 68.4 volts, the extra 2 are set up with the 110 watt panels to give 8 in that string with two different voltages by .1 in series of 4 so 2 sets with 68.8 volts, the 195 watt panels are in series of 3 with 3 sets in the string with 81.3 volts, and all the 200 watt panels are set up with 4 in series with 3 in the string with 72.4 volts, I have 2 outback charge controllers one flex 80 and one flex 60, the flex 80 has all the panels but the 200 watt ones connected to a bus bar then to it, and the flex 60 has all the 200 watt panels. I have 2 48 volt 3500 amp hour battery banks yes 3500 amp hour each with 24 two volt cells in each they are unigy II batteries, these 2 banks go into a 3 way switch so i can use either one and the flex 80 goes to 1 bank and the flex 60 goes to the other, or both if the switch is set to both. now for some reason i am only getting about 16 amp hours in the summer and right now 10 amp hours in the winter i got these numbers by adding the totals from the 2 charge controllers. which to me seems way low I live in southern kentucky not the best place but still seems low.
Any ideas would be helpful and I'm not against re configuring the whole thing and have set down and did some figuring and was wondering if this could be done.
If I put the 195 watt 27.1 volt in series of 4 I get 108.4 volts 2 strings 1560 watts
If I put the 200 watt 18.1 volt in series of 6 I get 108.6 volts 2 strings 2400 watts
put these 4 strings on the flex 80
and
If I put the 115 watt 17.1 volt in series of 6 I get 102.6 volts 2 strings 1380 watts
If I put the 110 watt 17.2 volt in series of 6 I get 103.2 volts 1 strings 660 watts
put these 3 strings on the flex 60
Does this seem a better solution the voltages are closer to each other then they were before , and what should be the expected output for south Kentucky.
this would leave me with 2 115 watt panels and 1 195 watt panel unused on the house but left for maybe the barn at a later date.
Thanks
PCS |
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