Grundfos SQFlex solar pumping system with 8 panels of 250 Wp — 4 m³/h flow rate irrigating 8 hectares in the Senegal River valley in Mauritania.
Irrigation of vegetable crops in the Senegal River valley has traditionally relied on diesel pumps that are expensive in fuel and maintenance. The solar pumping solution eliminates these recurring costs entirely and offers full autonomy in remote areas without access to the electrical grid.
The CVCI installation uses a Grundfos SQFlex 11A-3 submersible pump, powered directly by 8 solar panels of 250 Wp in series, with no battery or inverter. Flow rate varies naturally with sunlight, perfectly suited to elevated-tank storage and drip irrigation scheduled around daylight hours.
For a typical vegetable farm, the system delivers up to 4 m³/h at peak and enables drip irrigation of 8 hectares. Expected lifetime is 20 years for the panels and 10 years for the pump — a payback in under 4 years compared to diesel.
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