Solar water pumps on a Deye inverter: submersible and surface

A pump is one of the most common reasons solar gets bought in Saudi Arabia, Sudan and Yemen: the well is away from the grid, and the sun is there when the irrigation is needed.

Submersible or surface?

A submersible sits in the borehole and pushes water up; a surface pump draws from a tank or a shallow source. Both are electrical loads — the difference is head and the current it takes to deliver it.

Why a hybrid inverter beats a pump controller

A solar pump controller only works while the sun is up. A hybrid inverter with a battery bank runs the pump when you choose — before sunrise, or at night when evaporation is lower — and the same inverter serves the house the rest of the time instead of standing idle.

The number that gets missed: starting current

A pump motor draws a multiple of its rated power at start. Pumps are therefore sized against an inverter's surge rating, not its continuous one. Every Deye inverter page states both.

Phase matters

Most agricultural pumps are three-phase. Check the pump's phase against the inverter's before you buy — a single-phase inverter will not run a three-phase pump, and that mistake costs a return shipment.