One of the things that solar does best is pump water. The pumps operate directly off of the solar matching DC voltages for maximum possible production. There are no batteries in the system because the tank acts as storage holding whatever the system expects to produce. Designing these systems to the number of horses, cows, bison or whatever the system needs to water; to the months and their average temperatures and solar insolation; to the solar tracker or fixed mount system, to the size of the tank and all aspects of the well itself, accounting for evaporation, shading, a dusty road nearby etc., is the job of the solar installer. A well designed system is carefree and reliable.
Below are several photos of unique solar water pumping situations designed and installed by Solar Plexus LLC all around rural Montana.