I built a small house in rural VT, decided to go off grid and purchased a 3.7kW array of 12 panels, 4 Kilovault 3600 batteries, and a prewired Schneider Conext 4048 SW with a Midnite 200 charge controller through AltE. I don't have much experience with electrical and hired a local guy who hooked it all up for me. Everything works pretty well but I've had a couple issues... I have a 420' deep well and my well pump has a pretty big start up surge. It's a 1hp pump and I haven't been able to see exactly the surge goes up to but it's normally at about 2000 watts when it's running, so I would imagine it gets to around 3x times that, (my inverter is rated for 6800 surge watts for 30 seconds). It's never shut the inverter off but sometimes the inverter makes a horrible grinding noise when it kicks on sounds like it's about to break. If it never shuts the inverter off is it appropriately sized? and is the grinding noise normal or something I should be worried about? When the well pump runs it makes the lights flicker really badly, and when I have a small load ~100 watts the lights will also flicker pretty intensely. After some research I'm wondering if my house isn't grounded properly, I saw my electrician shove a 6' or 8' rod into the ground but I am worried it's not working correctly and if that could be the cause of the flickering and possibly the bad noises from the inverter? Thanks in advance for any info!
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