Home / Companies / Tokyo

Tokyo — power plant portfolio

Tokyo operates 28 power plants across 1 country, with a combined installed capacity of 59,845 MW. Its plants with asset-level emissions data total 3,716,820 t CO₂/yr.

28power plants
59,845MW total capacity
1countries
3,716,820t CO₂/yr (source-labelled)

Fleet by fuel

Hydro: 10 plants10HydroGas: 8 plants8GasOil: 6 plants6OilNuclear: 2 plants2NuclearGeothermal: 1 plants1GeothermalCoal: 1 plants1Coal

Fleet interpretation

Tokyo is represented here as an asset portfolio, not just a company label. The visible fleet spans 1 country; the largest concentration is Japan (28).

The fuel mix by asset count is hydro (10), gas (8), oil (6), nuclear (2). The largest listed asset is Kashiwazaki Kariwa in Japan (7,965 MW), and the mean listed unit size is about 2,112 MW across units with capacity data.

CO₂ coverage is source-labelled: 2 plants have a reported or modelled CO₂ value in the dataset, including 0 measured records. Missing values remain blank rather than inferred as company totals.

Method: plant-level records are grouped by owner/operator label, then aggregated by country, fuel, capacity and CO₂ provenance.

All 28 plants

PlantFuelCountryMWt CO₂/yr
Kashiwazaki KariwaNuclearJapan7,965
FuttsuGasJapan5,334
Fukushima DainaNuclearJapan4,400
HironoOilJapan4,400
KashimaOilJapan4,4003,224,900
SodegauraGasJapan3,600
AnegasakiOilJapan3,150
YokohamaOilJapan3,016
ChibaGasJapan2,880491,920
YokosukaOilJapan2,274
Higashi OgishimaGasJapan2,000
Hitachinaka power stationCoalJapan2,000
GoiGasJapan1,886
KawasakiGasJapan1,500
Shin TakasegawaHydroJapan1,280
TamaharaHydroJapan1,200
Minami YokohamaGasJapan1,150
ShinagawaGasJapan1,140
ImaichiHydroJapan1,050
OhiOilJapan1,050
ShiobaraHydroJapan900
KazunogawaHydroJapan800
AzumiHydroJapan623
KannagawaHydroJapan470
MidonoHydroJapan245
YagisawaHydroJapan240
ShinanogawaHydroJapan181
HachijojimaGeothermalJapan3

Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). CO₂ is measured for EPA/EU ETS records and modelled for Climate TRACE records.

Frequently asked questions

How many power plants does Tokyo operate?

Tokyo operates 28 power plants across 1 country, with about 59,845 MW of total capacity.

What is Tokyo's largest power plant?

Kashiwazaki Kariwa in Japan is its largest at about 7,965 MW.

What types of power plants does Tokyo run?

Its fleet is mostly hydro (10), gas (8), oil (6).

How much CO₂ do Tokyo's plants emit?

Its reporting plants emit about 3,716,820 tonnes of CO₂ per year in this dataset.

By Dmytro Aheiev, Inzonex Research · ORCID 0009-0001-5512-0291 · data sources and methodology