Yeah, after some research it is hard to justify using solar cells as the payback is very poor. They are best for installations were running electric is next to impossible.

Maybe in a few years, prices will have dropped enough to make it feasible.

The other problem is if you are running a motor or pump, you need a fairly substantial hit of power to get the motor started. Without needing to oversize the solar panels, you will still need a good, stout controller capable of dealing with these loads, and likely a battery to supply the surge the solar panels cannot. In the end, the electric will be cheaper, and then you will have the ability to light up your pond area!

Last edited by liquidsquid; 10/20/13 07:25 PM.