Specific emissions of energy production
Specific emissions, i.e. emission factors, describe the emission levels released per each produced energy unit.
Specific carbon-dioxide emissions of energy sold by Helen in 2016:
- Electricity: 198 g/kWh and the amount of nuclear fuel used 1.2 mg/kWh.
- Heat: 163 g/kWh.
- Cooling: 68 g/kWh.
The emissions data for district heat is updated annually in March and that for electricity and cooling in July.
See product-specific data on the electricity product pages. The certificates of origin of renewable energy and other separate products have an impact on the specific carbon dioxide emissions of each product.
Specific carbon dioxide emissions
|Year||Heat (g/kWh)||Electricity (g/kWh)||Cooling (g/kWh)|
Specific carbon dioxide emissions have been calculated for the amount of energy sold to the customer, taking into account the production and distribution losses.
The calculation of specific emissions of heating and cooling is based on the primary energy method (SFS-EN-15316-4-5).
In terms of electricity acquired from the electricity exchange, specific emissions of electricity are based on the calculation by the Finnish Energy Authority, taking into account separately sold renewable energy sources with guarantees of origin in order to avoid double calculation.
The energy production description gives an account of the environmental load of electricity, heat and cooling produced and distributed by Helen. Load is calculated by dividing the emissions of our power plants and our shares in power plants with the total energy sold. Production and distribution losses have been taken into account when calculating the amount of produced energy.
|Type of emission/year||2016||2015||2014||2013||1990|
|Carbon dioxide g/kWh||250||230||240||250||400|
|Nitrogen oxides mg/kWh||280||280||320||300||1470|
|Sulphur dioxide mg/kWh||220||130||160||180||1520|