Energy sources

Information about the origin and emissions of electricity is typically updated in the autumn.
Next update: August–September, 2027.

The electricity we sold in year 2025

The origin of the electricity contracts sold by Vaasan Sähkö Oy to households and business customers was distributed as follows:

  • renewable energy sources, 12%
  • nuclear energy, 73%
  • fossil energy sources, 14% (including peat).

In 2025, the specific carbon-dioxide emissions of the electricity sold by Vaasan Sähkö were 100.59 g/kWh and the amount of nuclear fuel used was 1.74 mg/kWh.

Product-specifics of 2025

Households

  • Fixed (before: Climate Electricity), Student Electricity, Basic Electricity, Monthly Plan, and Influencer: nuclear energy 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 2.3 mg/kWh.
  • Exchange Electricity Wind and Wind Power: wind power 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 0 mg/kWh.

Companies (annual electricity consumption >100 MWh)

  • Renewable: renewable sources 100%.
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 0 mg/kWh.
  • Wind Power: wind power 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 0 mg/kWh.
  • Enterprise Energy: renewable sources 19.80%, nuclear energy 31.28% and fossil sources 48.92%.
    • Direct specific carbon-dioxide emissions: 346.60 g/kWh. Used nuclear fuel generated in production: 0.89 mg/kWh.
  • Exchange Electricity: nuclear energy 100%.
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 2.3 mg/kWh.
  • Water Energy: hydro power 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 0 mg/kWh.
  • Exchange Electricity Wind: wind power 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 0 mg/kWh.
  • Enterprise Electricity, CO2-neutral Nuclear: nuclear energy 100%
    • Direct specific carbon-dioxide emissions: 0 g/kWh. Used nuclear fuel generated in production: 2.3 mg/kWh.