Heat pump savings calculator
Compare existing heating with a heat pump using consumption, tariffs and SCOP. Explore savings and simple payback.
Calculation inputs
Editable example. Replace prices and assumptions with your project data; these are not verified rates or a quote.
Project
ProjectYou can calculate. The cloud project is unavailable; this form draft can only be recovered on this device.
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Indicative result
- Annual useful heat
- 10,200 kWh / year
- Expected electricity use
- 3,187.5 kWh / year
- Current energy cost
- €1,200.00 / year
- New energy cost
- €701.25 / year
- Simple payback
- 30.09 years
- Cost at SCOP −0.5
- €831.11 / year
- Cost at SCOP +0.5
- €606.49 / year
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How it is calculated
Annual useful heat = Purchased heating energy (kWh/year) × Current efficiency (%) /100
Expected electricity use = Annual useful heat / Expected seasonal SCOP
Indicative result = Purchased heating energy (kWh/year) × Current energy price (€/kWh) − Expected electricity use × Purchased electricity (€/kWh) − Additional annual maintenance (€)
Simple payback = Installed investment (€) / Indicative result
What to check
Simplified annual model: no grants, financing, tariff changes or degradation. Does not replace a building energy assessment.
Sources and references
IDAE · EdificaciónReviewed:
Frequently asked questions
Is this a final quote?
No. Results depend on your inputs and the stated scope. A professional must check the property, measurements and conditions before quoting.
Can I use measurements from my plan?
Renovation, radiator, cooling and materials calculators can use internal plan measurements. Enter built area and the thermal envelope separately. You can save scenarios in your project.
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Let’s talk about your project
Tell us what you want to do. A useful estimate starts with your home, priorities and available budget.