So I have 4ea 195w panels at the well on a mast doing nothing. They are the same model as on the house. During the winter our water usage is minimal so the well pump plugged into the house is nothing other than maybe a few extra amp/hours of generator time. I have a few options:
a) Move the 3 of the four well panels to the house roof. I have three open positions available that I never filled and I'll have a system spare. Just run the well permanently from 120v, or;
b) Buy another 48v PHI for the well and have it back to an independent system. Or;
c) Do nothing but cash in the old bank for the core value and sell the 45a Morningside controller.
A bank of batteries for 48v for the well is a complete overkill with a 800 watt load. I'm done with lead and will NOT buy a lead replacement bank. And in 15 years we've never been at a loss for water which was the original reason to have a separate system. And even if the house system was down I could simply run an extension cord to the well and run it off the generator to repressurize the well tanks (2 80g).
I have kicked around a 30ah PHI Helios (30ah) for $1300 but NAZ never has stock. If I almost doubled the battery cost I could throw a 3.8-48 in there for the well. But that's kind of a pricey protection for an event that's never happened. Lastly, the open 3 positions on the house roof are the most likely to be partially shaded which is why I never filled them. In the summer we don't need more solar generation. In the winter I could triple our total solar and still not make power with sunlight that isn't there.
Option 'c' sounds better all the time. Any input?