How it works
Cost = heat delivered ÷ COP × electricity tariff + allocated fixed charges.
Input definitions
- Heat delivered (kWh)
- Enter the value in the labeled unit.
- Seasonal COP
- Enter the value in the labeled unit.
- Electricity price per kWh
- Enter the value in the labeled unit.
- Fixed charges allocated
- Enter the value in the labeled unit.
A worked example
- Heat delivered (kWh)
- 1000
- Seasonal COP
- 3.2
- Electricity price per kWh
- 0.25
- Fixed charges allocated
- 0
Assumptions & limits
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-19. Content checked against the stated method and examples. Our verification approach.
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Common questions
Why use seasonal COP?
A single rated COP may not represent changing outdoor temperatures, cycling and defrost energy.
How does Heat pump running cost calculate the result?
Cost = heat delivered ÷ COP × electricity tariff + allocated fixed charges.
What should I verify before using Heat pump running cost?
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.