World Power Plants

Karun-4 Hydro Power Plant1,000 MW Hydroelectric

HydroRenewableVerified: Feb 2026

The Karun-4 Hydro Power Plant, known locally as نیروگاه سد کارون ۴, is an essential component of Iran's energy generation framework. Commissioned in 2011, this facility boasts a substantial capacity of 1000 MW, contributing significantly to the national electricity supply. Utilizing advanced hydroelectric technology, the Karun-4 plant converts the kinetic energy of flowing water into electrical energy, showcasing Iran's commitment to harnessing its rich water resources for power generation. Located at coordinates 31.5969 latitude and 50.4712 longitude, this plant is situated along the Karun River, one of the longest rivers in Iran, which provides a consistent and powerful water flow necessary for efficient energy production. The Iranian government has strategically focused on expanding hydroelectric power as part of its broader energy policy, aiming to reduce dependence on fossil fuels and enhance energy sustainability. The Karun-4 plant, as part of this initiative, not only serves to meet the rising energy demands of the nation but also supports local economies by providing jobs and infrastructure development in the surrounding areas. Operated by a major state-owned company, the Karun-4 plant adheres to rigorous operational standards to ensure reliability and efficiency in energy generation. Its significance extends beyond mere electricity production, as it also plays a crucial role in flood control and irrigation, underscoring the multifaceted benefits of hydro power in Iran.

Capacity
1,000 MW

1.00 GW

Commissioning Year
2011

15 years old

Owner
Iran Water and Power Resources Development Company
Location
31.5969°, 50.4712°

Iran, Asia

Context & rankings
  • 66. largest of 327 plants in Iran
  • #2,414 worldwide by installed capacity
  • #355 of 8,493 Hydroelectric plants worldwide
  • 0.51% of the installed capacity of Iran
Age & fleet comparison

15 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Iran Water and Power Resources Development Company operates 47 plants totalling 27,342 MW

Regional density

12 plants within 100 km, 12,433 MW combined

Nearest plant: Karun-3 Hydro Power Plant (42.9 km)

Data provenance

Location

Coordinates:: 31.596878, 50.471170
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Karun-4 Hydro Power Plant is a hydro power plant producing approximately 3504 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
Iran
Continent
Asia
Data Source
Global Power Plant Database

Karun 4 Hydropower Plant: A Pillar of Iran's Renewable Energy Landscape

The Karun 4 Hydropower Plant, located in Iran, is a significant renewable energy facility with a capacity of 1,000 megawatts. Commissioned in 2011, this power plant plays a crucial role in the country's energy sector, contributing to Iran's efforts to diversify its energy sources and enhance its energy security. Situated on the Karun River in the southwestern part of the country, the plant utilizes hydroelectric power, which is derived from the gravitational force of falling or flowing water. This method of energy generation is particularly advantageous as it produces electricity without the combustion of fossil fuels, thereby reducing greenhouse gas emissions and minimizing air pollution.

The technical details of the Karun 4 facility highlight its advanced hydroelectric technology. The plant employs a series of turbines that convert the kinetic energy of flowing water into mechanical energy, which is then transformed into electrical energy. The plant's design allows for efficient water management and energy conversion, optimizing the use of the river's flow to ensure a stable and reliable power output. Additionally, the plant features a significant reservoir that helps in regulating water flow and maintaining energy generation during periods of low river water levels, demonstrating its capability to adapt to seasonal variations and maintain energy supply.

Environmentally, the Karun 4 Hydropower Plant presents both benefits and challenges. On one hand, it contributes to the reduction of carbon emissions associated with traditional fossil fuel-based power generation. By harnessing the renewable energy of water, it helps to mitigate the impact of climate change and promotes sustainable energy practices within Iran. On the other hand, the construction and operation of large hydropower facilities can disrupt local ecosystems, affect fish populations, and alter the natural flow of rivers, necessitating careful environmental management and monitoring.

Regionally, the Karun 4 Hydropower Plant holds significant importance not only for its energy production but also for its role in economic development and job creation in the surrounding areas. The plant has become a vital component of Iran's energy infrastructure, supporting the national grid and providing a stable source of electricity for industrial, residential, and agricultural use. Its operation has implications for regional energy cooperation and could serve as a model for future hydropower initiatives in Iran and neighboring countries. Moreover, the plant's capacity aligns with Iran's broader energy strategy to increase the share of renewable energy in its energy mix, thereby enhancing energy independence and sustainability.

In summary, the Karun 4 Hydropower Plant represents a significant advancement in Iran's renewable energy landscape. With its substantial capacity, efficient hydroelectric technology, and environmental considerations, it underscores the country's commitment to sustainable energy solutions while addressing the growing energy demands of its population and economy.

IranEnergy Profile

327
Total Plants
195.6 GW
Total Capacity
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