Are the pumps 120v or 240v, and what's the horsepower rating? That's going to be the big determining factor as to what size solar system you'd need. Regarding the type of solar system, you should look at your state's rebates and incentives for solar at the DSIRE site (http://www.dsireusa.org/) to see what kinds of incentives they offer, and what kinds of equipment will fall under their rebate categories. Depending on what your state and/or local utility is offering, the system might work out to be very cost effective.
From personal experience, you're going to need to go with a reasonably standard grid-tied system. If you rarely get blackouts, then don't worry about battery back-up - just pump straight into the grid. Do you have good southern exposure with very little shading on your roof? |