I currently have a small 12v system that is running 2 freezers. I have a 100/30 mppt, a single 200Ah lifepo4 battery and 500 watts solar, but my string of panels is not optimized for sure. Just what I have at the time. 3- 100 watt panels. I threw a 200 watt folder style panel in the mix and they are all wired in series. The folder is wired in parallel so I am not getting the best I can get for sure, but again, what I had at the time.
The system is good when it's clear, but I do lack capacity for sure for rainy/cloudy days. I have a charger/power supply as back up to turn on at 12.8v so I don't lose the freezers.
1) Should I add another 12v 200ah battery in parallel and get a slightly better mppt so I can add a few more smaller panels, so I do not need to buy a 24 volt inverter on top of the battery?
2) Should I make the jump straight to a 48 volt system and just bite the bullet on the cost? (this seems more logical as it will allow for expansion much easier)
I have room for potentially 9-10 large 80+ inch tall x 40-45 inch wide panels, but would start with at least 5 near 400 watts and around 40 volts so I can meet the 120v needed for the all-in one.
My next conundrum would be the all-in-one... I am leaning toward the EG4 3000 EHV-48 as I would doubt I would have enough room for the 6000xp 8k watts of PV.
Also, If I do end up having enough space for 2 rows of 5 panels, giving me close to 5k PV for th 3000 ehv, should I buy enough panels up front so they are all the same? I can't afford to buy new, so I would buy local off facebook most likely. Chance of getting the exact same (if i were to expand the array down the line, seems slime to none)
This system is a stand alone, NOT grid tie. It will power fridge/ freezers and charge power banks, tool batteries, ect...
Thank you for any input and ideas
The system is good when it's clear, but I do lack capacity for sure for rainy/cloudy days. I have a charger/power supply as back up to turn on at 12.8v so I don't lose the freezers.
1) Should I add another 12v 200ah battery in parallel and get a slightly better mppt so I can add a few more smaller panels, so I do not need to buy a 24 volt inverter on top of the battery?
2) Should I make the jump straight to a 48 volt system and just bite the bullet on the cost? (this seems more logical as it will allow for expansion much easier)
I have room for potentially 9-10 large 80+ inch tall x 40-45 inch wide panels, but would start with at least 5 near 400 watts and around 40 volts so I can meet the 120v needed for the all-in one.
My next conundrum would be the all-in-one... I am leaning toward the EG4 3000 EHV-48 as I would doubt I would have enough room for the 6000xp 8k watts of PV.
Also, If I do end up having enough space for 2 rows of 5 panels, giving me close to 5k PV for th 3000 ehv, should I buy enough panels up front so they are all the same? I can't afford to buy new, so I would buy local off facebook most likely. Chance of getting the exact same (if i were to expand the array down the line, seems slime to none)
This system is a stand alone, NOT grid tie. It will power fridge/ freezers and charge power banks, tool batteries, ect...
Thank you for any input and ideas
