Energy Supply

Energy procurement

Half of the electricity and heat sold by Turku Energia is generated from renewable energy sources. We achieved the target set for 2020 ahead of time; in 2018.

We are developing our energy supply via our own peak- and reserve-power plants as well as via our affiliate companies. The biggest impact on the amount of renewable energy generated and the reduction in emissions was the new multi-fuel power plant at Naantali which was completed at the end of 2017 (Turun Seudun Energiantuotanto Oy).

In accordance with our strategy, we concentrated on increasing renewable and carbon dioxide-free energy procurement and generation and we are participating in the City of Turku’s objective to be carbon neutral in 2029.

Fuels for heat supply 2017

(2262 GWh)

Origin of district heat

Most district heat is produced at the Naantali power station, Oriketo biothermal plant and Kakola heat pump plant. During peak loading times in freezing winters and when there are disturbances in the operation of the base generation plant, pellet and oil-fired heating plants are used as well. In addition, Turku Energia procures about 5% of the total district heating requirement by procuring heat from its partners and customers that is generated using bio-fuels and waste heat.

Supply and specific emissions

Heat specific emissions/energy sold  204 KgCO2/MWh

District cooling specific emissions/energy sold  29.5 KgCO2/MWh


Origin of electricity

The distribution of origins was calculated on the basis of the national residual mix reported by the Finnish Energy Authority and the guarantees of origin obtained by Turku Energia. The national residual mix for 2018 has not yet been published, this information will be updated in 2019. This describes the situation in 2017.

The mix is calculated on the basis of the Finnish energy balance residual mix and the guarantees of origin obtained by Turku Energia in accordance with the Energy Authority's guidelines. The residual mix contains electricity generated by fossil fuels and nuclear power as well as its share of renewal electricity-based electricity, which has not been sold separately with guarantees of origin.

CO2 emissions from electricity sold by Turku Energia are 195 g/kWh on average. The amount of nuclear fuel used on average in Finland in 2017 was 0.89 mg/kWh.