Originally posted by Mike90250
Grunfos makes some DC pumps, but the pump and it's controller are as expensive as a PV, battery, inverter setup to run a generic AC pump.

The most important thing is to properly size the pump, the combo of Motor & pump stages is critical to get the best performance per watt. And a 240V, 3 wire pump is easier for an inverter to start than the same pump in a 2 wire configuraton.

Mike "been there, done that" B.
It looks like you know lots about this subject. Can you advise us. We want to power our well pump with solar. Based on what you have said it looks like we will stick with our AC pump and not go with DC. This is the pump that we have now:

Wayne Reliant One
3/4 HP - I don't understand this - does this mean it is less than 1 HP?
V: 115/230
A: 12.2/6.1
RPM: 3450
HZ: 60

It looks like this pump doesn't meet the 240v that you mentioned in your post. Do we need to buy a new one?
What kind of inverter do you recommend?
What kind and how many solar panels do you recommend?

Thanks for your help