That EPEVER 80A is actually rated at 138V VOC. Its 150V at the "lowest temperature" you would experience. But solar panel labels are generally for nominal conditions so the 37V VOC on the solar panels x 4 = 148V, is too high. In cold temperatures the VOC of that solar string can easily exceed 150V. You will need to reconfigure the string a bit. I would consider paralleling two strings of 2 panels each. Buy a little solar combiner box to parallel the two strings together. I really like the little "Eco-worthy 4 string PV combiner" boxes. Check the fuse rating for the strings... I think that combiner box comes with 10A fuses, you might need 15A fuses with residential panels. But usually 10A is fine (per string). I don't recommend sitting the charge controller or batteries or anything else on the ground. Those are a bit too-exposed to the elements. Consider making a box for the equipment, with a solid lid, that won't let any water in that you can raise off the ground a bit. It's best to have a sealable box to reduce moisture issues but anything is better than sitting the equipment on the ground. Moisture can ruin the breakers, inverter, charge controller, etc. It won't last when exposed like that. -Matt
Thank you. I did read that part of the specs, but they can also handle 150% of the rated values. At most, the controller will limit the amount of power coming in. Ive already had that one hooked up all winter and its survived so far. They are also used panels, so they are only rated 75-80% of new. The second part of the video will be out soon, where I put it all in an electrical cabinet
Hopefully, it will be good enough for quite a while. Right now, out batteries are charged by 10:30-11:00am, so we will be upgrading the batteries after a while and getting a bigger inverter. My goal is to not run the generator for nothing but really dark skies. Anything that we run in the house, I want to be ran from the batteries and solar
I didn’t hear that part. I’m sorry. I have over 30 years experience building off grid solar systems and I live off grid and I know how to do a lot of incredible things with direct current and batteries and I love people that are into solar. If I could save you any trouble, I will definitely offer my advice. I have 11 kW of solar and 34 kWh of battery and I have like six charge controllers paralleled to my main direct current bus. Good luck and happy YouTubing!
I didn't say anything about that in the video. That in itself will probably be its own video, if not with the inverter video. I've only been doing this for 5 years, so I'm still a beginner and this is the largest system I've had. Doing major upgrades this year hoping I won't have to run the generator all winter long again
Epever charge controllers are not supposed to be horizontal. They are supposed to be mounted vertically on the wall so that the heat can convict upwards. Also, your mounting location is far too small for that equipment. It will overheat for sure. Plus the breakers will start cooking.
Thank you for your concern. As I stated, thus was only a temporary setup. Here is the rest of the video where I mount the controllers properly. ruclips.net/video/mZrZRiuogFw/видео.html
@@WindwalkerHomestead even with a cell phone with notes... I just don't right it done unless there is a post-it pad around... then I never hear the end to, "What are all these post notes for?!?"....LOL!
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If you have the space, used panels on a ground mount are definitely the way to go.
It's going to be a nice system when you're done.👍
That's exactly what I have. 11 panels altogether. Here's the second part of that video.
ruclips.net/video/mZrZRiuogFw/видео.html
Thanks for speaking with me through the IFLA forum!
My pleasure I love learning from the experiences of others
That EPEVER 80A is actually rated at 138V VOC. Its 150V at the "lowest temperature" you would experience. But solar panel labels are generally for nominal conditions so the 37V VOC on the solar panels x 4 = 148V, is too high. In cold temperatures the VOC of that solar string can easily exceed 150V.
You will need to reconfigure the string a bit. I would consider paralleling two strings of 2 panels each. Buy a little solar combiner box to parallel the two strings together. I really like the little "Eco-worthy 4 string PV combiner" boxes.
Check the fuse rating for the strings... I think that combiner box comes with 10A fuses, you might need 15A fuses with residential panels. But usually 10A is fine (per string).
I don't recommend sitting the charge controller or batteries or anything else on the ground. Those are a bit too-exposed to the elements. Consider making a box for the equipment, with a solid lid, that won't let any water in that you can raise off the ground a bit.
It's best to have a sealable box to reduce moisture issues but anything is better than sitting the equipment on the ground. Moisture can ruin the breakers, inverter, charge controller, etc. It won't last when exposed like that.
-Matt
Thank you. I did read that part of the specs, but they can also handle 150% of the rated values. At most, the controller will limit the amount of power coming in. Ive already had that one hooked up all winter and its survived so far. They are also used panels, so they are only rated 75-80% of new. The second part of the video will be out soon, where I put it all in an electrical cabinet
Good job ! "good enough for now" 👍
Hopefully, it will be good enough for quite a while. Right now, out batteries are charged by 10:30-11:00am, so we will be upgrading the batteries after a while and getting a bigger inverter. My goal is to not run the generator for nothing but really dark skies. Anything that we run in the house, I want to be ran from the batteries and solar
I didn’t hear that part. I’m sorry. I have over 30 years experience building off grid solar systems and I live off grid and I know how to do a lot of incredible things with direct current and batteries and I love people that are into solar. If I could save you any trouble, I will definitely offer my advice. I have 11 kW of solar and 34 kWh of battery and I have like six charge controllers paralleled to my main direct current bus.
Good luck and happy YouTubing!
I didn't say anything about that in the video. That in itself will probably be its own video, if not with the inverter video. I've only been doing this for 5 years, so I'm still a beginner and this is the largest system I've had. Doing major upgrades this year hoping I won't have to run the generator all winter long again
Epever charge controllers are not supposed to be horizontal. They are supposed to be mounted vertically on the wall so that the heat can convict upwards. Also, your mounting location is far too small for that equipment. It will overheat for sure. Plus the breakers will start cooking.
Thank you for your concern. As I stated, thus was only a temporary setup. Here is the rest of the video where I mount the controllers properly.
ruclips.net/video/mZrZRiuogFw/видео.html
So... Ugh, all the math... Lol!
I had it all figured out beforehand, but of course, I didn't write it down🤣
@@WindwalkerHomestead even with a cell phone with notes... I just don't right it done unless there is a post-it pad around... then I never hear the end to, "What are all these post notes for?!?"....LOL!