Energy calculator
Select investments and see how they affect your home's energy efficiency.
Possible investments
Heat pump
Windows
Facade renovation
Roof renovation
Ventilation system
Solar panels
Primary energy mix
Electricity
Thermal power
Nuclear
Solid fuels
Solar energy
Original energy consumption
A1
A2
B1
B2
C
D
E
F
Required heating energy
283.95 kWh
Delivered energy
428 kWh
Primary energy
93 kWh
CO₂ emissions
11.13 kg/m²
Recalculated energy consumption
A1
A2
B1
B2
C
D
E
F
Required heating energy
283.95 kWh
Delivered energy
428 kWh
Primary energy
93 kWh
CO₂ emissions
11.13 kg/m²
Investment cost
Total
0 €
Seasonal savings
Current costs
7.125 €
Costs after renovation
3.750 €
Expected savings
3.375 €
Expected years to payback
8 years