Model
A simplified annual yield is matched to the household load profile. Self-consumption, autarky, grid import and export are derived from that balance.
Energy · Preliminary estimate
PV yield and self-consumption
Assess yield, self-consumption, autarky and grid import from site, PV size, orientation, shading and load profile.
ENERGY01
This calculator estimates annual PV energy, the share used directly in the building and the remaining grid import.
02
Results
PV + load + storage
Complete the inputs and calculate.
Scope
The site formula is a transparent screening estimate. Use a site-specific PVGIS time series for detailed design.
Assumptions
Inputs, units and assumptions remain traceable in the result. Planning and approval require measured data, manufacturer documentation and a time-series simulation.