Belgium
Brussels rooftop solar case study
Belgian net-metering reforms still favor midsized rooftops when paired with high self-consumption.
Payback / System Size
System Size
6.2 kW
Annual Yield
6,400 kWh per year
Payback
6.4 years
Avg install cost
€9,800
Annual savings
€1,800 per year
Lifetime value
€28,000
Why this city shines
A Brussels maisonette deploys 6.2 kW and nets 6.4 MWh, trimming EUR 1,800 yearly while awaiting prosumer tariff updates.
Rooftop solar in Brussels works with a 6.2 kW array that delivers about 6,400 kWh yearly. Install costs near €9,800 translate to roughly €1,800 annual savings and a 6.4-year payback under typical tariffs.
Offsets roughly 2.6 tonnes of CO2 annually.