Each case study presents a project sized with LE LAB, the solar pumping and irrigation sizing application. The initial requirement, the calculation assumptions, the data entered, the results obtained and the technical choices are examined step by step, so that the sizing process becomes fully understandable. Operating limits and points requiring attention are presented with the same rigour as the results.
Borehole limited to 5 m³/h, storage tank, 10° roof pitch and a generator as backup: a complete case where the tool frames and the trade decides.
A buffer tank filled by gravity, 18 m of elevation gain, 500 m of pipe, no grid and no generator: three panels are enough to lift 32 m³ a day to the village reservoir.
A pilot market garden plot, a 30 m well and the deliberate choice to go without a reservoir: coverage is simulated day by day and quantified before signing.
An orchard, an irrigation pond and no power line: the three families that hold the duty point are compared array by array, and a drive feature that is not needed counts for nothing.
At 319 m of head the natively hybrid range no longer competes: the three ways of bringing alternating current into a solar pump, and the one that depth imposes.
An NGO's request: 100 m³ a day for a town and its livestock, a 50 m borehole, and a generator that now starts only three days a year, the PSk3 hybrid controller combining both sources on its own.
A pastoral association, a captured spring 45 m below the drinking troughs, no grid and no track: the need is calculated from the herd, and the smallest system in the series carries the season.
Assumptions stated, figures calculated from the curves published by the manufacturer: the cut-in threshold, the voltage window and the three items the manual makes essential.
Replay the method with your own figures: location, water need, borehole. Free, no registration, results in a few minutes.