A 90 m head solar submersible pump is made to lift water from fairly deep wells or boreholes (up to 90 meters vertical). It runs on solar power, which makes it great where there’s no reliable grid, or where you want a greener, lower-running-cost solution. Because of the depth, it generally has a stronger motor and higher voltage, and sacrifices flow rate compared to pumps for lower heads. Great for supplying water for domestic use, livestock, smaller irrigation, or community water points.