Solar calculator

An indicative estimate of your photovoltaic installation, based on your consumption and the solar resource of your city.

City

Use

Type of installation

Your consumption I know my consumption (kWh per month) I know my bill (FCFA per month) I will list my appliances

Monthly consumption (kWh)

Monthly bill amount (FCFA)

Price per kWh on your bill (FCFA)

Shown on your NIGELEC bill.

Appliances

Examples: LED bulb 10 W, fan 60 W, refrigerator 150 W, TV 100 W, air conditioner 1,000 W, pump 750 W.

Share of consumption at night (%)

Days of autonomy (off-grid)

Diesel price (FCFA / litre, optional)

Calculation assumptions

Solar resource: PVGIS data (European Commission, SARAH-2 database), panels facing due south at the optimal tilt, 14% system losses. 550 Wp panels (≈ 2.6 m² each). Lithium battery with 90% depth of discharge. Generator: 0.3 litre of diesel per kWh and 2.68 kg of CO₂ per litre of diesel (CO₂ is only calculated for the comparison with a generator). This calculation is indicative; only an on-site study can size the final installation. No prices are given here.