460 watt solar setup: wire sizes?
I want to change out my old 50 watt panel and 10 amp controller with at least one and hopefully two 230 watt 24 volt panels and whatever controller would be best. Right now the roof on my fifth wheel ...
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We have too much solar for sunny days but not enough for when days are mostly cloudy. It depends on your usual climate what you can count on for planning.
This summer here has been amazing for a long string of non-cloudy blue sky days, so batts are full by noon easy. No need for top charge /equalize sessions either like I figured on. SG shows true full and the Trimetric even goes "over" in AH by a few. I said before this was not possible. Hmmmm.
One thing to note is in these conditions, being in Float for the afternoon, every time you do use a high amp draw, even briefly, it kicks the solar controller into another two- hour absorption stage, so you can spend many hours a day at 14.5ish volts. Need to add some water to the bank of 6s every two weeks!
No doubt reality will set in soon and it will snow or something in August! :)
This summer here has been amazing for a long string of non-cloudy blue sky days, so batts are full by noon easy. No need for top charge /equalize sessions either like I figured on. SG shows true full and the Trimetric even goes "over" in AH by a few. I said before this was not possible. Hmmmm.
One thing to note is in these conditions, being in Float for the afternoon, every time you do use a high amp draw, even briefly, it kicks the solar controller into another two- hour absorption stage, so you can spend many hours a day at 14.5ish volts. Need to add some water to the bank of 6s every two weeks!
No doubt reality will set in soon and it will snow or something in August! :)
