Poland
Krakow rooftop solar case study
Net-billing reforms plus decreasing hardware costs keep Polish rooftops cash-flow positive.
Payback / System Size
System Size
6.8 kW
Annual Yield
7,400 kWh per year
Payback
5.5 years
Avg install cost
€10,200
Annual savings
€1,850 per year
Lifetime value
€30,500
Why this city shines
A Krakow duplex runs two 3.4 kW strings, logging 7.4 MWh and offsetting winter smog-related heating loads.
Rooftop solar in Krakow works with a 6.8 kW array that delivers about 7,400 kWh yearly. Install costs near €10,200 translate to roughly €1,850 annual savings and a 5.5-year payback under typical tariffs.
Offsets roughly 3.0 tonnes of CO2 annually.