Netherlands
Rotterdam rooftop solar case study
Dutch analyzer results lean on saldering credits, so 5-6 kW arrays routinely net out entire household demand.
Payback / System Size
System Size
5.8 kW
Annual Yield
5,400 kWh per year
Payback
5.9 years
Avg install cost
€9,050
Annual savings
€1,650 per year
Lifetime value
€25,500
Why this city shines
Rotterdam row houses feed 5.8 kW arrays into saldering, so nearly every exported kWh offsets retail tariffs.
Rooftop solar in Rotterdam works with a 5.8 kW array that delivers about 5,400 kWh yearly. Install costs near €9,050 translate to roughly €1,650 annual savings and a 5.9-year payback under typical tariffs.
Offsets roughly 2.1 tonnes of CO2 annually.