Solar & Battery Quote Checker
Received an installer quote? Model expected generation with postcode-specific PVGIS data and challenge claimed savings, payback and battery sizing.
Open calculator →Which calculator should I use?
Use the quote checker when you have an installer proposal; use the battery tools when the question is specifically about storage economics or sizing.
How to get a more useful result
Use your own tariff or quote figures, then run the calculator again with a more conservative assumption for the input you are least sure about. A decision that still looks sensible under both cases is more robust than one that only works under optimistic inputs.
Independent solar modelling
The flagship Solar & Battery Quote Checker uses European Commission Joint Research Centre PVGIS data for postcode-specific generation modelling. Installer savings claims remain assumptions to be tested, not facts accepted by the calculator.