Posted February 10, 20223 yr Hi guys. Does the below screen shot look like a good deal? I'm not sure what panel and battery prices are doing these days... This is for an off-grid system on a farm for my parents-in-law. This installer is known in the area, so he is not a fly by night type. He has also worked on my brother in law's system.
February 10, 20223 yr 8 hours ago, Bernardf said: Hi guys. Does the below screen shot look like a good deal? I'm not sure what panel and battery prices are doing these days... This is for an off-grid system on a farm for my parents-in-law. This installer is known in the area, so he is not a fly by night type. He has also worked on my brother in law's system. This looks like a great deal.
February 10, 20223 yr Have you calculated the return on investment for this, relative to the load they have. The real joy for offgrid living seems to me, the security and joy of having electricity 24/7/365. Is the cost worth it or a smaller system could still do? That would be for you to determine.
February 11, 20223 yr Seems like an excellent price. I have similar specs and paid 150k without installation for all the components. Any chance you could get Sunsynk instead of Deye? The new Sunsynk Logger allows for remote changes to the inverter so if interwebs available on farm, you or installer could change parameters remotely without having to go to the farm. Unsure of all parameters available for remote change but worth looking at in mentioned scenario. Otherwise looks like a great set of kit and they will definitely be happy with it. ROI on a kit like this is around 7 years in my usage case. Might be more or less for them.
February 11, 20223 yr 18 hours ago, Bernardf said: Hi guys. Does the below screen shot look like a good deal? I'm not sure what panel and battery prices are doing these days... This is for an off-grid system on a farm for my parents-in-law. This installer is known in the area, so he is not a fly by night type. He has also worked on my brother in law's system. When you say offgrid on a farm? Do you mean there is no utility available?
February 11, 20223 yr 23 hours ago, Bernardf said: This is for an off-grid system on a farm for my parents-in-law. For such situation I would suggest to install two inverters that can work in parallel. It's for service reliability. If one fails they still have power even with restricted max. power from the remaining unit until the faulty is repaired. Other benefit is load sharing. It splits the load stress on each unit in half and hopefully extends life time.
February 11, 20223 yr There should be an understanding of how much your parents use, including their peak usage. This system will provide just over 20A of power from the batteries. Maybe it will exceed that for a few seconds. My system is limited to 20A, with a 30A burst for 10 seconds. Sounds like plenty, but if the dishwasher, the microwave and the kettle get turned on at the same time we can exceed the 20A limit (depending on where the dishwasher is in it's cycle). Turn on a toaster and we're definitely over the limit and it will be lights out. So maybe you want to think about an 8kw inverter. I would if I were starting again. Also you will have 10Kw/h when the sun isn't shining. That's probably OK to get you through a night, but 2 or 3 days of overcast weather and those batteries will not have so much juice in them, and so if you want to go all the way off-grid you will need some other source of power, probably a generator, and an easy way to get it going.
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