Tool 3 · Indicative
A quick estimate without a bill
Use this tool when you don't have a bill on hand. The result is conservative and less precise than an estimate from real consumption.
Tool 3 · Rough estimate
Quick estimate
Four quick questions, a rough estimate. Less precise than the PVGIS site lookup, much less precise than uploading a bill - use this only for a first orientation.
Next step
Check the estimate with an engineer
A precise estimate will need your bills, site location and connection conditions.