howmuchsun

Off-grid solar sizing in Switzerland

What a year-round off-grid system costs you in 3 cities, sized against the worst month rather than the annual average.

CityAnnual per kWWorst monthArray for 3 kWh/daySeasonal swing
Zürich 1,152 kWh December 3.06 kW 3.3×
Geneva 1,276 kWh December 2.50 kW 2.9×
Basel 1,175 kWh December 2.55 kW 2.7×

How these figures are calculated