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Feedback on off grid solar with transfer switch to power house loads
Hi, I am building an off grid system to charge a tesla and also an a second panel where I can switch off some load from the house (mainly AC or well pump or the whole house since there is outage often) to my system sometimes. I have 2 x sunny islands (5048) that will give me split fase 240V around 10 KW connected to 12 x 100 Ah Lead acid batteries 12v each in series 4 each to make a 48v power bank. I have used 40 panels that are 250W each that I bought as well as 16 panels that are 195W each. I can connect them through AC. Coupling.
I have 2 x 7.7 Sunny Boy's PV Inverters and theoretically I connect them on Load Panel with the Sunny Island which will allow me to use the solar power and the excess to charge the batteries. It will also give me freedom to add more panels, Sunny boys and or Sunny Islands later to expand if I need to as well as the ability to add a backup generator.
I am confused how to connect on the sub electric panel the sunny islands and sunny boys with other loads. Which breakers and which panel should I use? Also can you recommend any transfer switch panels I can put in the house and wire a load from this sub panel to switch some loads independently off and on from grid and solar system
Please Provide feedback and suggestions:
Love this community and the videos!
Feedback on off grid solar with transfer switch to power house loads
Hi, I am building an off grid system to charge a tesla and also an a second panel where I can switch off some load from the house (mainly AC or well pump or the whole house since there is outage often) to my system sometimes. I have 2 x sunny islands (5048) that will give me split fase 240V around 10 KW connected to 12 x 100 Ah Lead acid batteries 12v each in series 4 each to make a 48v power bank. I have used 40 panels that are 250W each that I bought as well as 16 panels that are 195W each. I can connect them through AC. Coupling.
I have 2 x 7.7 Sunny Boy's PV Inverters and theoretically I connect them on Load Panel with the Sunny Island which will allow me to use the solar power and the excess to charge the batteries. It will also give me freedom to add more panels, Sunny boys and or Sunny Islands later to expand if I need to as well as the ability to add a backup generator.
I am confused how to connect on the sub electric panel the sunny islands and sunny boys with other loads. Which breakers and which panel should I use? Also can you recommend any transfer switch panels I can put in the house and wire a load from this sub panel to switch some loads independently off and on from grid and solar system
Please Provide feedback and suggestions:
- Type of wires to connect within the system the Inverters, panels, and the batteries.
- Overall Design of the System and any improvements and changes.
- What kind of panel and switches I would need to put that would allow me to transfer switch every load depending whether I want it on the grid or on the solar system?
Love this community and the videos!
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