Forum Discussion
StirCrazy
Jan 11, 2017Moderator
rjxj wrote:John & Angela wrote:StirCrazy wrote:jrjxj wrote:
that means that when your 480 watts is performing at its best in full sun TILTED it will only hit the batteries with 10 amps or so and maybe 15 plus at times.
that's way out. in September up north in the deep tundra (haha) with only two of there panels I was pulling 14 amps, he has three so they are rated up to 26 amps in his configuration and he should get very close to that considering he is down south. the panels used by go power are very high quality panels, not the cheep ones.
Agreed. With those conditions you will see in excess of 20 amps and probably close to 24 or 25. Its always the cosine off the incident angle and you can pretty much calibrate your meter with that. It is that accurate on a clear day.
To be accurate you need to quote the whole thing. I said that when his panels are putting out full power and house load is considered, he may only hit the batteries with 10 to 15 amps.
"I went back and read your last post again. If you are pulling 1 to 5 amps with 4 or 5 things during the day just say it averages 15 amps that means that when your 480 watts is performing at its best in full sun TILTED it will only hit the batteries with 10 amps or so and maybe 15 plus at times. Not good. Normally we are not using a lot of power while the sun is cranking the power in. When the sun is gone we then draw the most power. For us the only big draw when the sun is out is our resi frig at 5.x amps at half the time. As it cools in the evening and sun is gone the furnace kicks on and the television is on plus the fridge.
"
ahh so you mean after he takes care of the load that makes ore since. well that's good, he isn't depleting his batteries and even getting a charge. I know my meter just shows the total V and Amps going to the battery so unless you have a real expensive meter you won't know that, but if I were getting 10 amp charging during the day and most likely they are not going to use a sustained 15 amp draw down south, so your most likely going to see a net 50+ amp hour top up, then I would be happy. up here my furnace running 24/7 draws my batteries down about 45 amp hours in 30 degree weather and I am topped up every night before I go to bed in shoulder season for solar and that is with two panels. the fith is in right now getting a third put on and the larger charger so I will essentially have the same system as him but with the 2000 watt pure sign inverter instead of the 3000 watt.
Steve
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