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Solar powered lift station
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junk fun
Posted 5/22/2020 19:23 (#8273962 - in reply to #8273765)
Subject: RE: Solar powered lift station


I'm going to guess you'll find diesel or propane much cheaper, both initially and ongoing costs. The low utilization of solar is going to make it extremely expensive capacity.

You could do it all DC, and that's the way I'd go if it had to be solar.

The other option would be a Maximum Power Point Controller, feeding dc to an inverter, feeding AC to a VFD.

If there is such a thing as a direct DC powered VFD, then that might change the calculation. Probably look into well pump setups a little bit and see what they do and get some numbers that way to compare. Or solar irrigation, if there is such a thing that will be the closest to what you want to do.

Compare apples to apples if you do come up with a solar solution, people compare an off grid system to a 200 amp service run, they're not in the same universe of power. You can run a lot of power off a 20 amp circuit.
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