Solar Simulator — Photovoltaic ROI

Calculate the return on investment of solar panels based on your city and consumption — ONEE data 2026

Your situation

City (2000 kWh/m2/an)

Monthly ONEE bill : 800 MAD

200 MAD5 000 MAD

Available roof surface : 30 m2

10 m2100 m2

Installation type

Estimate based on ONEE 2026 tariffs, average irradiation by city and standard panel yield (400W).

Simulation result

Estimated annual savings

9.600 MAD/an

Return on investment in 4.8 years

Casablanca — 4.6 kWc — 12 panels (400W) — coverage 100%

4.6

kWp recommended

panels (400W)

4.8

years ROI

5.15

tonnes CO2/year

Estimate details

IndicatorValue

Estimated monthly consumption610 kWh/mois

Recommended power4.6 kWc

Number of panels (400W)12

Required panel surface24 m2

Estimated annual production7.360 kWh/an

Coverage rate100%

Estimated installation cost46.000 MAD

Annual savings9.600 MAD/an

ONEE tariffs used

Tranche 1

0-100 kWh

0,90 MAD/kWh

Tranche 2

101-200 kWh

1,08 MAD/kWh

Tranche 3

201-500 kWh

1,42 MAD/kWh

Tranche 4

+500 kWh

1,60 MAD/kWh

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FAQ — Solar in Morocco