Potencia contratada
The contracted power in kW, billed every day whether you use it or not.
Guide
How to Read Your Spanish Bill
Spanish invoices mix power, energy and taxes. Here is what actually matters for solar.
Request a project assessmentEnergía consumida
The kWh you used, usually split across time periods P1 to P6.
Time periods
Peak hours are the expensive ones — and largely the hours solar covers.
Taxes
Electricity tax and VAT are applied on top, so every kWh saved saves more than its raw price.