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System · Wind + solar
Wind and solar fail at different times. Pairing them on one DC bus is the cheapest way to shrink a battery bank and cut diesel hours — usually 30–40 % smaller storage than either source alone.
A hybrid system uses one controller with two inputs: a wind MPPT channel and a PV MPPT channel, both charging the same battery bus. The controller decides where the amps come from, and the dump load absorbs whatever the battery cannot take when both sources are strong.
The sizing rule we use: wind covers the winter and the nights, PV covers the summer days. In a temperate climate with a 5 m/s wind resource and 3.5 peak-sun-hours, a 1:1.5 wind-to-PV ratio gives the flattest monthly output curve.
| Criterion | Advantage | Practical meaning |
|---|---|---|
| Winter output | Wind keeps producing when PV drops 70 % | The main reason to hybridise |
| Battery size | 30–40 % smaller for the same autonomy | Lower capex than a PV-only system with 5 days of storage |
| Diesel hours | Typically 85–95 % reduction | Generator kept only as a maintenance charger |
| Control complexity | One controller, two MPPT inputs | Avoid two independent controllers fighting over the bus |
Send the site location and the load you need to power. You get a sized model, a price and a lead time — usually within one working day.
