Having had a huge koi pond for the last 6 years with fish almost 2 feet long that would eat out of my hand & were my pride & joy, & coming home to find out my pumps were off & they were all dead, I would not mess with anything that will take a changc on losing your fish. I had two commerical top quality pumps & although the pumps were fine, the plug they went to went out & without the waterfall & two fountain heads, there was not enough oxygen to keep them alive & they died. Solar does not always work, I have those little solar yard lights that bearly glow. If you have a little pond with little fish that do not need a lot of oxygen, it will probably work. But they need constant flow of water for oxygen, & if you were going to have a filter, I dont think it would have the horsepower it would need to keep all the going.
Good luck. It has been 6 months since my incident, & i cant bring myself to even go in the backyard anymore. We are in the process of moving & i am planning another one with all sorts of fail safes for the next pond. I am not even considering solar myself. But asking a pond specialist would probably be best
I have to agree with Debbie. As I have put a few solar lights around my property and they are not very reliable. So I've made a pact that I quit with solar powered anything. There is only one little lantern that I've had for over 2 years that has continuoulsy lit the area next to my pond...but saying that I'll bet it will go out now anyday.
If it were me I would stick with the tried and true electrical pumps and filters. Altho anything can happen, at least the electrical is more reliable than the solar.
We have alot of solar powered lights around our home and the barn, and the walkway. I also have some statues that have solar powered parts to them, you can barely see those from the house and our house is only about 25' from those. Everything is in full sun daily, but all they cast at night is just a nice golden glow. We did have a solar powered fencer that lasted about 2 years, and just plain quit working. I dont think a solar pump for fish would work either, and I sure wouldnt trust one.