Denmark
Aarhus rooftop solar case study
High daytime tariffs and battery-ready meters reward Denmark's self-consumption strategies.
Payback / System Size
System Size
5.6 kW
Annual Yield
5,400 kWh per year
Payback
5.9 years
Avg install cost
€9,800
Annual savings
€1,650 per year
Lifetime value
€25,800
Why this city shines
Aarhus cooperatives share 5.6 kW rooftops that output 5.4 MWh into district-heating circulation pumps.
Rooftop solar in Aarhus works with a 5.6 kW array that delivers about 5,400 kWh yearly. Install costs near €9,800 translate to roughly €1,650 annual savings and a 5.9-year payback under typical tariffs.
Offsets roughly 2.2 tonnes of CO2 annually.