Molepolole, Botswana

Plenty of sunshine, but unreliable grid? Diesel too expensive? Here's the solution 👇 Solartech, in cooperation with local partners, has installed a 1.5kW solar water pumping system for a farmer, used for irrigation and livestock watering.

❓ Q: 40 tons of water per day — really using only solar, no diesel?
✅ A: Yes, absolutely.
The system includes:
Pump power: 1.5kW
Solar pumping inverter: PB4000H-G4
PV array capacity: 4.5kW
Water Head: 27 meters
Daily water output: 40 cubic meters
The stronger the sunshine, the more water flows — without a single drop of diesel.
In Botswana, where average annual rainfall is only 400mm+, this system is a lifeline in the field.

❓ Q: No diesel, no grid connection — what about cloudy days or early morning / evening?
✅ A: The system is designed with local climate and water needs in mind.
Mostly sunny conditions ensure stable and efficient PV output.
The inverter features wide-voltage MPPT tracking, allowing startup even in low light.
With a water storage tank, water is pumped during the day and stored for 24/7 use.

💰 One investment, years of returns. No fuel, no grid connection, easy maintenance — perfect for regions like Botswana where the grid is unreliable and diesel is outrageously expensive.