Payback Time Calculator

Country specific starting values

Technical Parameters

Heating Capacity:		kW
Temp. Lift:		°C
COP
HP invest:		€
Gas Boiler Efficiency:		%

Economic Parameters

Cost for Process Integration:		times HP invest		Interest Rate:		%
Maintenance Factor:		% of HP invest		System Life Time:		years

Utility Prices and Economics

	min		max	used
Gas:					€/kWh
Electricity:					€/kWh
CO2 Em. Int.:					g/kWh
CO2 price:					€/ton
Operating time:					h/a

Results:

Cost

Invest for Heat Pump incl. Integration:	€	bars as % of total invest. cost
Maintenance Cost per Year:	€	bars as % of total invest. cost
Electricity Cost per Year:	€
Gas Cost per Year avoided:	€
CO2 Cost avoided:	€
Total Savings:	€

Discounted Payback Period

How to use this web-page:

1. Select country from pull-down list for obtaining starting values:
prices for gas and electricity and CO2 intensity;
press "select country".
2. adjust technical and economic parameters to customize your "center-case"
press "re-calculate"
3. check sensitivities to key parameters using the sliders under "utility prices and economics"
(note, that values can also be changed by typing)
scroll down to watch how values for the discounted pay back period change
4. press "overview" (below) to get a country comparison.

Country Comparison:

Discounted Payback Times

Country
Price Ratio electricity/gas
CO2 intensity, g/kWh
payback time, years
NaN means: the savings are less than the captial cost, i.e. there is no chance for a pay-back
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