Puzzeling thru a 12v to 24v solar upgrade
Currently have 400w of 12v panels feeding four 6v US Battery 2200's in series/parallel.The 12V battery output goes to a 1000w inverter dedicated to a single plug output for computers. There is a Blue ...
Forum Discussion
You are "over-panelled" on the 4210, which is safe, and good in the shoulder hours, but you could have chosen two 325s instead of three perhaps. What happens with the 400w array? What are you going to do with all those amps and just a 1000w inverter? There must be more to the plan! :)
You can mix things up and get more from all those panels if you ever wanted to. Just need another controller or two. EG:
I have three arrays flat on the roof each with its own controller acting in parallel on the battery bank. (A collection of solar sets from previous RVs that I am using with this RV)
1. 20 amp Eco-Worthy MPPT on a 275w panel
2. 20 amp Tracer MPPT on a 255w panel
3. 30 amp Solar30 PWM on three 100w panels in parallel
The three controllers are all set to the same voltage so they add their amps.
After the Tracer does its two hours in Abs and drops to 13.6v in the afternoon, the others can keep the amps coming until dark if there is lots of solar that day. The sun is lower then, so the two can do it all anyway, so that works out.
At times I have tried it with the battery bank split. The Eco-W goes on one part that runs just the 2000w inverter loads. The other two go on the rest of the bank running normal 12v loads. Have to pick which part to use the Trimetric with.
You can do anything you want and keep changing that since it is your own RV!
You can mix things up and get more from all those panels if you ever wanted to. Just need another controller or two. EG:
I have three arrays flat on the roof each with its own controller acting in parallel on the battery bank. (A collection of solar sets from previous RVs that I am using with this RV)
1. 20 amp Eco-Worthy MPPT on a 275w panel
2. 20 amp Tracer MPPT on a 255w panel
3. 30 amp Solar30 PWM on three 100w panels in parallel
The three controllers are all set to the same voltage so they add their amps.
After the Tracer does its two hours in Abs and drops to 13.6v in the afternoon, the others can keep the amps coming until dark if there is lots of solar that day. The sun is lower then, so the two can do it all anyway, so that works out.
At times I have tried it with the battery bank split. The Eco-W goes on one part that runs just the 2000w inverter loads. The other two go on the rest of the bank running normal 12v loads. Have to pick which part to use the Trimetric with.
You can do anything you want and keep changing that since it is your own RV!
