
Read the flow.Choose cleaner.
Energy Market Authority SingaporeInstalled Capacity of Grid-Connected Solar Photovoltaic SystemsEnergy Market Authority SingaporeSingapore to Accelerate Solar Deployment to Meet 3 GWp Solar Target by 2030Energy Market Authority SingaporeBuying at Regulated TariffEnergy Market Authority SingaporeSolar Generation ProfileNational Climate Change Secretariat SingaporePowerNational Renewable Energy LaboratoryPVWatts CalculatorInternational Renewable Energy AgencyRenewable Power Generation Costs in 2025International Energy AgencyElectricity Mid-Year Update 2026
Solar potential
RoofSeparate usable roof from total areaSolar1 questionCompare
YieldKeep local sunlight and losses visibleSolar1 questionCompare
SizingMatch capacity to space and demandSolar1 questionCompare
ShadingTrace the shade before assuming outputSolar1 questionCompare
PaybackCompare costs without promising a returnSolar1 questionCompare
CareKeep access and maintenance in viewSolar1 questionCompareVisible unitsYour inputsFree comparisons
Generation, self-use and export are different quantities. A useful comparison carries all three through to the result.
Roof capacity
Quick setups
45m²×210W/m²÷ 1,000=9.45kWp
Panel density applies to usable area; access and setbacks still need checking.
Roof clearer?
Cleange compares the inputs you enter; site, safety and contract decisions still need qualified assessment.
Plan solar

Roof
Measure usable area, orientation, structure and access before panel count becomes a sales promise.
Open Roof →