I would look at the AC options. The money saved over the DC or AC\DC pumps may
well purchase the extra PV required for the increase in energy draw. Come
winter time that larger array with a much lower pumping load will be most
welcome for any OTG system further increasing the value of this option lowering
genset run time. With PV so cheap these days the highest efficiency is not
always the best option anymore for OTG.
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
>SOLutions
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