I just used 33 Kaneka panels to power three flex pumps in one well. I hooked them up in series of three to supply 201 volts DC to the pumps on three separate circuits. 12 panels on two 4 inch pumps and 9 panels on one three inch pump. I am pumping between 25 and thirty five gallons a minute into a pond all day every day.
I am so happy with these panels that I intend to order more for an off-grid cabin in the mountains here in Nevada near Las Vegas.
I used an established solar well company and bought a package. I won't recommend this action. I did not get what I ordered and the electrical instructions were unsophisticated and illegal. I also had to toss the controllers they sent because the used # 20 wire in the relays to run 1 HP pumps. These flex pumps also work on Alternating current.

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