Before I flip the switch

[VideoLenser]

I keep changing my plans from simple backup to something more. . I now have 8 100 watt HF panels, Renogy 100a Charge controller & Renogy 3000w inverter. I have SAE to MC4 adapters so I didn't cut the connections going to MC4 10awg 50ft cable in 1in pvc. Thinking of doing 4 more panels in spring. I have 4 100ah agm batteries. Should I be 2S 4P or 4S 2P? I'm on grid but want to be less so. I'm planning to get an EZ Gen switch for my gas furnace.

 

[Supervstech]

What charge controller do you have?
A 100A controller should handle 1200W of panels at 12V…

Arrangement of the panels is based on location.
Is it shady? Or fully open area?

 

[VideoLenser]

What charge controller do you have?
A 100A controller should handle 1200W of panels at 12V…

Arrangement of the panels is based on location.
Is it shady? Or fully open area?

Thanks for responding! Renogy 100A 12V/24V/36V/48V DC Input MPPT Solar Charge Controller. In late fall thru winter in Wisconsin Sunny from 8am -1:30pm & 2-3pm, otherwise mostly sunny. Two Eco-Worthy 4 panel brackets facing south mounted side by side on cemented 4 by 4 posts

 

[VideoLenser]

Also, I have 1inch PVC feeding the MC4 cables to a closet from outside. I have a plastic shelf which I plan to store the Charge Controller , Inverter and the 4 AGM batteries on the bottom shelf. Do I need to ventilate the closet? I was considering putting a vent on the door. I also will have a breaker box, multiple kill switches and fuses

 

[Rednecktek]

Go with 4s, those HF panels don't like playing with each other in parallel very well so the less parallels you have the better.

 

[chrisski]

The closet temp and the more power you run will determine whether it’s vented. Also is the derating as temps go up. Could lose 50% and only manage 1500 watts.

I have a 3000 watt PST 24 volt inverter and it lets me know it’s getting hot because the fan turns on.

If you’re around, I’d have a plan to vent but gather some data on how hot it gets and install if needed. What would change that is if it’s stuffed tightly into a closet and then I’d vent it.

 

[VideoLenser]

Go with 4s, those HF panels don't like playing with each other in parallel very well so the less parallels you have the better.

Agreed. I plan on 4s2p then 4s3p.

 

[VideoLenser]

The closet temp and the more power you run will determine whether it’s vented. Also is the derating as temps go up. Could lose 50% and only manage 1500 watts.

I have a 3000 watt PST 24 volt inverter and it lets me know it’s getting hot because the fan turns on.

If you’re around, I’d have a plan to vent but gather some data on how hot it gets and install if needed. What would change that is if it’s stuffed tightly into a closet and then I’d vent it.

The closet won't have anything else in it so it won't be tight in there. I'm there most of the time working virtually so I can keep an I on it. Thanks for the input

 

[VideoLenser]

I don't plan on running anything DC so I am not using bus bars. Am I wrong?