howmuchsun

Off-grid solar sizing in Belgium

What a year-round off-grid system costs you in 9 cities, sized against the worst month rather than the annual average.

CityAnnual per kWWorst monthArray for 3 kWh/daySeasonal swing
Brussels 1,052 kWh December 3.60 kW 3.6×
Antwerp 1,041 kWh December 3.88 kW 3.9×
Gent 1,059 kWh December 3.66 kW 3.7×
Charleroi 1,050 kWh December 3.83 kW 3.9×
Liège 1,033 kWh December 3.86 kW 3.9×
Anderlecht 1,045 kWh December 3.75 kW 3.8×
Schaerbeek 1,049 kWh December 3.63 kW 3.6×
Brugge 1,082 kWh December 3.61 kW 3.8×
Namur 1,054 kWh December 3.90 kW 4.0×

How these figures are calculated