Solar for pool pump

[heartbroken]

Just wondering out loud here. I know you get dedicated pool pumps that run on DC directly from solar panels. Which is cool, but bloody expensive for running a pool. Also, you will have to chuck out a perfectly working pump.

So what I was thinking, why not get a couple of panels with an inverter tied directly to the panels. Seems like those Axpert inverters might do the trick. Which means when the sun shines to pool pump runs. After a bit of saving you then add a couple of batteries and only run the pool pump every second day. The other day charges the batteries for loadshedding and the rest of the PV supplements your usage for that day.

Effectively you will be running the pool pump at zero cost and saving on your electricity bill every other day.

Any ideas? Anybody done something similar? Am I being naive, or crazy?

EDIT: I think my pump draws 750w

 

[P924]

You get powtran inverters for this exact purpose for less than R2k. Problem is they do not have a boost stage, so it is usually difficult to get 330V from 1kW worth of panels, you would probably end up using a bunch of 75W panels, which would cost more per watt than the bigger panels.