Joetsu Green power station is a 109.2 MW gas power station in Niigata, Japan. It is operated by Nihon Techno Co Ltd. Based on its capacity (estimated), it can supply roughly 123k homes (estimated). It ranks #251 of 692 Japan power plants by installed capacity. Commissioned in 2015, it is around 11 years old — relatively modern. In context, gas supplies about 32.8% of Japan's electricity; the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5283.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000408470; fuel: Climate TRACE
In context: how this plant compares
At 109.2 MW, Joetsu Green power station is below the median gas plant in Japan (847.4 MW). Technically it is described as Engine. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Japan gas capacity
- 0.1% of 74,949 MW across 66 plants in this dataset
- Age among peers
- 46 of 58 dated gas plants in Japan are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest gas plants in Japan
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Nihon Techno Co Ltd.
Local climate & thermal context
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 37.3°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 3% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 51/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #61 largest gas power plant of 66 in Japan by capacity.
Japan has 66 gas power plants in this dataset, together about 74,949 MW of capacity.
Nearby power plants
- Joetsu Solar Power Plant · Solar · 2 MW · Niigata
- Joetsu power station · Gas · 572 MW · Niigata
- Kashiwazaki Kariwa · Nuclear · 7,965 MW · Niigata
- Shinanogawa · Hydro · 181 MW · Niigata
- Okukiyotsu · Hydro · 1,000 MW · Niigata
- Itoigawa power station · Coal · 149 MW · Niigata
Location
Coordinates 37.2553, 138.3935 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Joetsu Green power station?
Joetsu Green power station is a 109.2 MW gas power plant in Niigata, Japan, commissioned in 2015.
Who operates Joetsu Green power station?
Joetsu Green power station is operated by Nihon Techno Co Ltd.