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Specific emissions of energy
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:
- Electricity: 191 g/kWh and the amount of nuclear fuel used 0.91 mg/kWh in 2018
- Heat: 198 g/kWh in 2019* (in the previous specific emissions calculation principle, 134 g/kWh)
- Cooling: 18 g/kWh in 2019
The emissions data for district heat is updated annually in March and that for electricity and cooling in July.
Specific carbon dioxide emissions
|Year||Heat (g/kWh)||Electricity (g/kWh)||Cooling (g/kWh)|
Specific emissions have been calculated for the amount of energy sold to the customer, taking into account the production and distribution losses.
In terms of electricity acquired from the electricity market, specific emissions are based on the calculation by the Finnish Energy Authority, taking into account separately sold renewable energy with guarantees of origin in order to avoid double calculation.
*The principles of calculating the specific emissions of electricity have changed over the years as a result of changes in the procurement structure and legislation. The specific emissions of electricity sold in 2005–2007 were calculated according to Helen's production structure and in 2008–2011 according to the production structure in Finland. The specific emissions of electricity sold since 2012 have been calculated on the basis of the residual mix on the electricity exchange and separate procurement by the company itself.
**The calculation of specific emissions of heating and cooling was based on the primary energy method (SFS-EN-15316-4-5) in 2005–2018, and on benefit allocation method starting from 2019. More information in our blog (Finnish).