Austria
Vienna rooftop solar case study
Austria's klimaaktiv program plus cooperative utilities create predictable funding for rooftops.
Remboursement / Taille du système
Taille du système
6.7 kW
Rendement annuel
7,300 kWh per year
Remboursement
6.1 years
Coût d’installation moyen
€10,800
Économies annuelles
€1,950 per year
Valeur sur la durée
€30,500
Pourquoi cette ville brille
Vienna townhomes approved 6.7 kW installs that power heat pumps and regional rail commuters' EVs.
Rooftop solar in Vienna works with a 6.7 kW array that delivers about 7,300 kWh yearly. Install costs near €10,800 translate to roughly €1,950 annual savings and a 6.1-year payback under typical tariffs.
Offsets roughly 3.0 tonnes of CO2 annually.