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October 18, 2024 10:18 pm
5 months ago I had 53 REC panels installed with 2 Solark12k-P inverters and 2 EG4 14.3kwh batteries. The system is running well, but my EG4 batteries are going from fully charged [55 volts] at sunset down to 15% [45 volts] by 6:00 am. It is only my wife and I in the house and except for 2 refrigerators and occasionally a small AC unit there are no other large energy loads from sundown to sunup. This is not consistent with what our installer explained to us when they designed the system. We had hoped to eventually go off grid, so that is why we invested in the 2 EG4 batteries. I am hoping someone has some insights for us.
October 19, 2024 12:53 pm
Just installing our system, will keep an eye on this thread. For our situation the plan is to try to minimize consumption during outages (aka hypermiling), but know we'll need more battery than we have in our phase 1 project config.
How does the system perform when no AC is used?
Any electric appliances, we'll pump, pools?
October 19, 2024 3:01 pm
Hard for me to decipher your post. What's the amp hour rating of your batteries? Do you have 53 solar panels? I have 10 panels on 2 100 amp hour batteries. My system only has a freezer on it continually and 240 and 120 receptacles I can use when needed. Mine charges to full and then to 85% nightly.
Per EG4 mine is not an optimal setup. I read somewhere I need to not allow fully charging and stay in a mid-range percent charged instead. Still trying to figure out how to achieve that with the 3000 EHV-48 inverters.
This post was modified 1 month ago 2 times by Frugal Farmer
October 19, 2024 3:57 pm
Yeah, I’d be curious of usage. Like put a kill a watt meter on each device and see what they are consuming.
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