Naantali CHP power station

From Global Energy Monitor

Naantali CHP power station is an operating power station of at least 253-megawatts (MW) in Naantali, Lansi-Suomen, Finland with multiple units, some of which are not currently operating.


Table 1: Project-level location details

Plant name Location Coordinates (WGS 84)
Naantali CHP power station Naantali, Lansi-Suomen, Finland 60.4583, 22.0542 (exact)

The map below shows the exact location of the power station.

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Unit-level coordinates (WGS 84):

  • Unit 4: 60.4583, 22.0542
  • Unit 2, Unit 1, Unit 3: 60.458081, 22.05294
  • Unit 4: 60.4572, 22.0559

Project Details

Table 2: Unit-level details

Unit name Status Fuel(s) Capacity (MW) Technology Start year Retired year
Unit 1 retired coal - bituminous, fossil liquids - crude oil, fossil gas - unknown, bioenergy - unknown 116 subcritical 1960 2017
Unit 2 retired coal - bituminous, fossil liquids - crude oil, fossil gas - unknown, bioenergy - unknown 125 subcritical 1964 2017
Unit 3 retired coal - bituminous, fossil liquids - crude oil, fossil gas - unknown, bioenergy - unknown 125 subcritical 1972 2017
Unit 4 cancelled coal - bituminous 145 unknown
Unit 4 operating[1] bioenergy - wood & other biomass (solids), coal - anthracite[1] 253[1] 2017[2]

Table 3: Unit-level ownership and operator details

Unit name Owner Operator
Unit 1 Turun Seudun Energiantuotanto Oy (TSE) [100.0%]
Unit 2 Turun Seudun Energiantuotanto Oy (TSE) [100.0%]
Unit 3 Turun Seudun Energiantuotanto Oy (TSE) [100.0%]
Unit 4 Turun Seudun Maakaasu- ja Energiantuotanto Oy [100.0%]
Unit 4 Turun Seudun Energiantuotanto[3] Turun Seudun Energiantuotanto[3]

Project-level coal details

  • Coal source(s): imported


The Naantali CHP power station was originally a three-unit, 375 MWt combined heating and power station built between 1960 and 1972. It included one 116 MW unit and two 125 MW units. The plant was fueled with bituminous coal, oil, refinery off-gas, biomass, and oil. Coal was imported via the attached coal port. In addition to electricity, the plant produced district heat for the Turku regional district heating network and steam for nearby industrial facilities. Aggregate electrical output was 145 MW.[4][5]

Retrofit and conversion to biomass

In April 2014 it was reported that TSME planned to entirely replace the existing plant with a biomass and waste plant. The new CHP plant was to have an installed capacity of 244MW of heat, 145MW of electricity and 50MW of steam. Construction was to begin in 2015, with the new unit coming online in 2017. Although original plans were for the plant to be co-fired by coal, TSME later said it planned for the unit to be fueled 100% by biomass and waste.[6][7]

The new unit (Unit 4) was commissioned in December 2017[8], fueled by a mix of "biomass from forests, thinning logs, chipped poles, stumps, and industrial by-products such as bark and sawdust, straw and coal."[9] Unit 4 has a generating capacity of 253 MW.[10]

Articles and Resources


  1. 1.0 1.1 1.2 {{cite web}}: Missing or empty |title= (help)
  2. {{cite web}}: Missing or empty |title= (help)
  3. 3.0 3.1 {{cite web}}: Missing or empty |title= (help)
  4. "Coal-Fired Plants in Finland," Power Plants Around the World, accessed September 2014
  5. "Naantali Thermal CHP Power Plant Finland," Global Energy Observatory, accessed September 2014
  6. "Turku utilities to trade in coal for biofuel," Yle, 14 April 2014
  7. "Finland torches more coal, overshoots emissions cap by a million tons," Yle, Dec 11, 2017
  8. "The Naantali multi-fuel power plant was inaugurated today". YIT Group. December 8, 2017.{{cite web}}: CS1 maint: url-status (link)
  9. "Metso’s valve expertise secures Naantali power plant’s reliability," Metso, accessed December 2018
  10. "Voimalaitosrekisteri". Energiavirasto. Retrieved 2023-07-07.{{cite web}}: CS1 maint: url-status (link)

Additional data

To access additional data, including interactive maps of the power stations, downloadable datasets, and summary data, please visit the Global Bioenergy Power Tracker and the Global Coal Plant Tracker on the Global Energy Monitor website.