World Power Plants

Niihama Nishi power station300 MW Coal

Coal

The Niihama Nishi power station, located in Japan at coordinates 33.9545, 133.2491, is an essential component of the country’s energy generation portfolio. This coal-fired power plant, commissioned in 1984, has a capacity of 300 MW and is operated by Sumitomo Joint Electric Power Co. The facility plays a pivotal role in supplying electricity to the regional grid, particularly in a nation that has faced significant energy challenges, especially following the 2011 Fukushima disaster. Coal remains a substantial part of Japan's energy mix, and Niihama Nishi contributes to this by providing stable and continuous energy generation, which is crucial for meeting the country's energy demands. The technology used in this power station is designed to optimize efficiency while managing emissions, though Japan is also increasingly focused on reducing its reliance on coal in favor of cleaner energy sources. The location of Niihama Nishi allows it to effectively support both local and national electricity needs, thus reinforcing its importance in the regional energy landscape. In the current context of Japan’s energy policies, which emphasize a transition towards more sustainable energy solutions, the role of coal-fired power plants like Niihama Nishi is being reassessed. Nevertheless, the plant continues to be a critical asset for energy generation, contributing to the stability of the grid while Japan navigates its energy transition.

Capacity
300 MW
Commissioning Year
1984

42 years old

Owner
Sumitomo Joint Electric Power Co
Location
33.9545°, 133.2491°

Japan, Asia

Context & rankings
  • 195. largest of 662 plants in Japan
  • #6,026 worldwide by installed capacity
  • #1,851 of 2,793 Coal plants worldwide
  • 0.09% of the installed capacity of Japan
Age & fleet comparison

42 years in operation

Coal fleet average: 29.2 years

Operator portfolio

Sumitomo Joint Electric Power Co operates 2 plants totalling 550 MW

Regional density

28 plants within 100 km, 8,427 MW combined

Nearest plant: Funayaotsu (3.5 km)

Data provenance

Source: GCPT

Location

Coordinates:: 33.954500, 133.249100
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Carbon Footprint820 g CO₂/kWh
Annual CO₂
1.19 Mt
1445 GWh/year × 820 g/kWh
Cumulative CO₂
49.78 Mt
Over 42 years of operation
Past Retirement
2024
2 years past expected retirement
Annual emissions equivalent to
257.7K
cars per year
158.0K
homes per year
53.9M
trees to offset

Estimates based on Coal emission factor (820 g CO₂/kWh) and capacity factor (55%). Actual emissions may vary based on operating conditions, efficiency, and fuel quality.

Technical Details

Primary Fuel Type
Coal
Energy Source
Non-Renewable
Country
Japan
Continent
Asia
Data Source
Global Power Plant Database

JapanEnergy Profile

662
Total Plants
342.8 GW
Total Capacity
GasNuclearCoalOil
Top Fuels

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