Formulas used for calculating the fixed fee
As a district heating customer of Oulun Energia, you pay a fixed fee and an energy fee during use. The amount of the fixed fee depends on the contracted water flow, which is calculated according to type of property and maximum heat demand.
The contracted water flow refers to the maximum flow of district heating water reserved for a customer when the ambient temperature is –32°C. For example, for detached houses, the most common contractual water flow is less than 0.2 m³/h.
On this page, you will find the formulas for calculating the fixed fee, as well as the basic information for the most common fixed fees and prices in total.
Contracted water flow |
Formulas for calculating the fixed fee |
| Detached house, contracted water flow (V) 0–0.2 | (2.71 x EUR 138) x 1.24 = EUR 463.74/year |
| Terraced house, small apartment building, contracted water flow (V) 0.21–5.0 | (2.71 x (EUR 34 + EUR 520 x V) x 1.24) |
| Large apartment buildings/properties, contracted water flow (V) over 5 | (2.71 x (EUR 1134 + EUR 300 x V) x 1.24) |
Basic information
The most common fixed fees and total prices presented in the district heating price list are based on data on the following typical residential buildings built in the 2000s.
Example apartment |
Calculated power requirement per hour |
Water flow |
Annual energy |
Guideline cubic volume of building |
| Detached house | 10 kW | 0.15 m3/h | 18 MWh | 600 m3 |
| Terraced house, small apartment building | 70 kW | 0.8 m3/h | 150 MWh | 5,000 m3 |
| Large apartment building | 230 kW | 2.8 m3/h | 600 MWh | 20,000 m3 |