Tomatouatsuma power station

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Tomatouatsuma power station (苫東厚真発電所) is an operating power station of at least 1650-megawatts (MW) in Atsuma, Hokkaido, Japan with multiple units, some of which are not currently operating.

Location

Table 1: Project-level location details

Plant name	Location	Coordinates (WGS 84)
Tomatouatsuma power station	Atsuma, Hokkaido, Hokkaido, Japan	42.60762, 141.80843 (exact)

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

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Unit-level coordinates (WGS 84):

• Unit 1, Unit 2, Unit 3, Unit 4: 42.60762, 141.80843

Project Details

Table 2: Unit-level details

Unit name	Status	Fuel(s)	Capacity (MW)	Technology	Start year	Retired year
Unit 1	operating	coal - bituminous	350	subcritical	1980	–
Unit 2	operating	coal - bituminous	600	supercritical	1985	–
Unit 3	retired	coal - bituminous	85	subcritical	1998	2005
Unit 4	operating	coal - bituminous	700	ultra-supercritical	2002	–

Table 3: Unit-level ownership and operator details

Unit name	Owner
Unit 1	Hokkaido Electric Power Co Inc (HEPCO) [100.0%]
Unit 2	Hokkaido Electric Power Co Inc (HEPCO) [100.0%]
Unit 3	Hokkaido Electric Power Co Inc (HEPCO) [100.0%]
Unit 4	Hokkaido Electric Power Co Inc (HEPCO) [100.0%]

Background

The Tomatouatsuma coal-fired plant is owned by Hokkaido Power Company. It produces 1,650MW from its three operating Units. Unit 1 (350MW) was commissioned in 1980; Unit 2 (600MW) was commissioned in 1985; and Unit 4 (700MW) was commissioned in 2002. Unit 3 (85MW) was commissioned in 1985 and retired in 2005.

On June 11, 2023, Unit 2 was shut down for a day due to a 6.2 magnitude offshore earthquake. Later in June 2023, it was reported that Hokkaidō Electric expected to restart Unit 4 in August after having been shut down five months earlier when cracked steam pipes were discovered.

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Additional data

To access additional data, including an interactive map of coal-fired power stations, a downloadable dataset, and summary data, please visit the Global Coal Plant Tracker on the Global Energy Monitor website.