Heat Pump Electricity Calculator
Calculate power consumption & running costs
Electricity Usage Calculator
Monthly Cost Projection
Estimated monthly electricity costs for your heat pump system over 12 months.
Example Calculation
System Capacity: 8 kW
COP: 3.5
Heating Hours: 2,000/year
Electricity Rate: £0.25/kWh
Standing Charge: £0.45/day
Rate Increase: 3%/year
Calculation:
1
Input Power = Capacity ÷ COP = 8 ÷ 3.5 = 2.29 kW
2
Annual kWh = Input Power × Hours = 2.29 × 2,000 = 4,571 kWh
3
Usage Cost = kWh × Rate = 4,571 × £0.25 = £1,143
4
Standing Charges = £0.45 × 365 days = £164
5
Total Annual Cost = £1,143 + £164 = £1,307/year