World Power Plants

Niikappu hydro power station200 MW Hydroelectric

HydroRenewableVerified: Mar 2026

Niikappu, another vital hydroelectric power generation facility, mirrors the Takami plant in both capacity and significance, ranking 214th among Japan's 664 power generation plants. With a capacity of 200 MW, it also holds the title of the 48th largest hydro plant out of 90 across the nation. Although its contribution of 0.06% to Japan's total capacity of 357,453 MW may seem minor, the facility plays a crucial role in diversifying the country’s energy sources, particularly in a landscape dominated by nuclear energy. The technology employed at Niikappu harnesses the energy from flowing water, converting it into electricity through a proven hydroelectric generation process. Located within 50 km of other hydro plants like Takami and the Takami Dam, Niikappu is part of a regional cluster that emphasizes the importance of renewable energy in Japan's energy strategy. The Okuniikappu facility, with a capacity of 44 MW, further enriches this energy ecosystem, showcasing the collective potential of hydroelectric power in the area. This cluster not only aids in stabilizing the grid but also represents a significant shift toward renewable energy in a country traditionally reliant on fossil fuels and nuclear power. Operated by Hokkaido, Niikappu has been part of Japan's energy framework since the early 1990s, and as the nation continues to advance its sustainability goals, the role of facilities like Niikappu becomes increasingly crucial. Looking forward, this plant's contribution to regional energy security and its alignment with environmental objectives highlight the growing importance of hydroelectric power in Japan's energy transition.

Capacity
200 MW
Commissioning Year
Owner
Hokkaido
Location
42.6066°, 142.5569°

Japan, Asia

Context & rankings
  • 212. largest of 662 plants in Japan
  • #7,393 worldwide by installed capacity
  • #1,460 of 8,493 Hydroelectric plants worldwide
  • 0.06% of the installed capacity of Japan
Operator portfolio

Hokkaido operates 3 plants totalling 2,400 MW

Regional density

23 plants within 100 km, 2,707 MW combined

Nearest plant: Okuniikappu (12.4 km)

Location

Coordinates:: 42.606600, 142.556900
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Carbon Footprint

Zero Direct Emissions

Niikappu hydro power station is a hydro power plant producing approximately 701 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
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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