World Power Plants

Heris Combined Cycle Power Plant490 MW Natural Gas

GasVerified: Feb 2026

The Heris Combined Cycle Power Plant is a significant gas-fired facility located in Iran, with a generation capacity of 490 MW. Positioned at coordinates 38.2261, 46.9626, this power generation facility utilizes advanced combined cycle technology, which enhances efficiency by utilizing both gas and steam turbines to generate electricity. This technology allows for higher efficiency rates compared to traditional gas power plants, making Heris an important asset in Iran’s energy landscape. As the country seeks to diversify its energy sources and reduce dependence on oil, the Heris power plant plays a crucial role in the national grid, providing a reliable source of electricity that supports both residential and industrial needs. The growing emphasis on natural gas as a cleaner alternative to oil aligns with Iran's energy policies aimed at promoting sustainability and reducing emissions. The Heris Combined Cycle Power Plant exemplifies modern energy generation practices and highlights the country's commitment to enhancing its energy security and sustainability.

Capacity
490 MW
Commissioning Year
2011

15 years old

Owner
Iran Power Generation and Transmission Company (TAVANIR)
Location
38.2261°, 46.9626°

Iran, Asia

Context & rankings
  • 152. largest of 327 plants in Iran
  • #4,719 worldwide by installed capacity
  • #1,681 of 5,146 Natural Gas plants worldwide
  • 0.25% of the installed capacity of Iran
Age & fleet comparison

15 years in operation

Natural Gas fleet average: 26.9 years

Operator portfolio

Iran Power Generation and Transmission Company (TAVANIR) operates 61 plants totalling 48,772 MW

Regional density

11 plants within 100 km, 3,277 MW combined

Nearest plant: Tabriz Petroshimi (60.9 km)

Data provenance

Source: Wikidata

Location

Coordinates:: 38.226078, 46.962562
Open in Google Maps
Carbon Footprint490 g CO₂/kWh
Annual CO₂
946.5 Kt
1932 GWh/year × 490 g/kWh
Cumulative CO₂
14.20 Mt
Over 15 years of operation
Est. Retirement
2041
15 years remaining
Annual emissions equivalent to
205.8K
cars per year
126.2K
homes per year
43.0M
trees to offset

Estimates based on Gas emission factor (490 g CO₂/kWh) and capacity factor (45%). Actual emissions may vary based on operating conditions, efficiency, and fuel quality.

Technical Details

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

Heris Combined Cycle Power Plant: A Key Player in Iran's Energy Landscape

The Heris Combined Cycle Power Plant, located in Iran, boasts a capacity of 490 megawatts (MW) and primarily utilizes natural gas as its fuel source. This facility plays a significant role in the Iranian energy sector, contributing to the country's growing electricity demand and enhancing energy security. As one of the critical components of Iran's power generation infrastructure, the Heris plant exemplifies the advantages of combined cycle technology, which allows for higher efficiency and reduced emissions compared to traditional power generation methods.

The combined cycle process at the Heris power plant involves the use of both gas and steam turbines. Initially, natural gas is combusted in a gas turbine, which generates electricity. The heat produced from this combustion process, rather than being released into the atmosphere, is captured and used to create steam that drives a steam turbine. This dual turbine system significantly increases the overall efficiency of the power plant, often exceeding 60%, compared to conventional gas power plants that typically operate at efficiencies of around 33-40%. This efficient use of fuel not only maximizes energy output but also minimizes fuel consumption and operational costs.

Natural gas, as a fuel source, offers several advantages. It is cleaner-burning than coal or oil, resulting in lower levels of harmful emissions such as sulfur dioxide (SO2) and particulate matter. However, it is important to note that natural gas is primarily composed of methane, a potent greenhouse gas. Therefore, while the Heris plant contributes to lower overall carbon emissions compared to fossil fuel alternatives, the challenges associated with methane leaks during extraction and transportation remain a concern for environmental sustainability.

The Heris Combined Cycle Power Plant also holds regional significance within Iran's energy framework. As the country faces increasing electricity demands due to population growth and industrialization, the need for reliable and efficient power generation becomes paramount. The Heris plant, by utilizing advanced technology and natural gas, not only supports the national grid but also helps to stabilize electricity supply in the region. This reliability is critical for economic development, as consistent power availability is essential for both residential and industrial consumers.

In conclusion, the Heris Combined Cycle Power Plant stands as a testament to Iran's commitment to modernizing its energy sector while addressing environmental concerns. With its advanced technology, efficient use of natural gas, and significant contribution to regional energy stability, the Heris plant is an integral part of Iran's strategy to meet its energy needs while pursuing a more sustainable future.

IranEnergy Profile

327
Total Plants
195.6 GW
Total Capacity
GasHydroOilNuclear
Top Fuels

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