World Power Plants

Zakuma Power Station350 MW Hydroelectric

HydroRenewableVerified: Feb 2026

佐久間発電所, located in Japan, is a significant hydroelectric power generation facility with a capacity of 350 MW. Operated by 電源開発, this power plant plays a crucial role in the national energy mix by harnessing the potential of flowing water to generate electricity sustainably. The plant utilizes advanced hydro technology, which is essential in Japan's commitment to renewable energy sources and reducing carbon emissions. Given Japan's geographical features, the integration of hydroelectric power is vital for balancing the energy grid, especially in the face of natural disasters that can disrupt other forms of energy generation. Situated at coordinates 35.0911, 137.8057, the plant is strategically located to take advantage of the region's water resources, contributing significantly to the local and national energy supply. The operational context of 佐久間発電所 aligns with Japan's energy policies aimed at increasing renewable energy production, particularly following the Fukushima disaster, which shifted the focus towards less carbon-intensive energy sources. As a hydroelectric facility, it not only provides clean energy but also supports local ecosystems and contributes to flood control, making it an integral part of the infrastructure in this area.

Capacity
350 MW
Commissioning Year
1966

60 years old

Owner
電源開発
Location
35.0911°, 137.8057°

Japan, Asia

Context & rankings
  • 186. largest of 662 plants in Japan
  • #5,633 worldwide by installed capacity
  • #987 of 8,493 Hydroelectric plants worldwide
  • 0.1% of the installed capacity of Japan
Age & fleet comparison

60 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

J-Power operates 7 plants totalling 3,915 MW

Regional density

52 plants within 100 km, 42,546 MW combined

Nearest plant: Shin Toyone (5.6 km)

Data provenance

Location

Coordinates:: 35.091072, 137.805681
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Zakuma Power Station is a hydro power plant producing approximately 1226 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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