World Power Plants

The Union Power Station, located in the United States of America, plays a critical role in the regional energy generation landscape. Commissioned in 2003, this gas-fired power plant boasts an impressive capacity of 2428 MW, making it one of the significant contributors to the energy mix in Arkansas. Operated by Entergy Arkansas LLC, the facility utilizes advanced gas turbine technology that enhances efficiency and reduces emissions compared to traditional coal power plants. The strategic location of the Union Power Station, with coordinates 33.2961 latitude and -92.5894 longitude, allows it to effectively supply power to the local grid and support the state's growing energy demands. As energy policies in the United States increasingly focus on reducing carbon footprints and promoting cleaner energy sources, gas-fired plants like Union Power Station are positioned as essential transitional technologies. They not only provide reliable baseload power but also support the integration of renewable energy sources by offering flexibility in energy output. The significance of this power generation facility extends beyond mere capacity; it is integral to maintaining grid stability and ensuring that Arkansas meets its energy needs. As the country navigates the path towards a more sustainable future, the Union Power Station exemplifies the role of natural gas in bridging the gap between conventional fossil fuels and renewable energy.

Capacity
2,428 MW

2.43 GW

Commissioning Year
2003

23 years old

Owner
Entergy Arkansas LLC
Location
33.2961°, -92.5894°

United States of America, North America

Context & rankings
  • 64. largest of 10,098 plants in United States of America
  • #544 worldwide by installed capacity
  • #103 of 5,146 Natural Gas plants worldwide
  • 0.17% of the installed capacity of United States of America
Age & fleet comparison

23 years in operation

Natural Gas fleet average: 26.9 years

Operator portfolio

Entergy Arkansas LLC operates 7 plants totalling 7,360 MW

Regional density

9 plants within 100 km, 2,261 MW combined

Nearest plant: McClellan (AR) (35.3 km)

Location

Coordinates:: 33.296100, -92.589400
Open in Google Maps
Carbon Footprint490 g CO₂/kWh
Annual CO₂
4.69 Mt
9571 GWh/year × 490 g/kWh
Cumulative CO₂
107.87 Mt
Over 23 years of operation
Est. Retirement
2033
7 years remaining
Annual emissions equivalent to
1.0M
cars per year
625.3K
homes per year
213.2M
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
United States of America
Continent
North America
Data Source
Global Power Plant Database

Union Power Station: A Key Gas-Fired Power Facility in the United States

Union Power Station is a significant gas-fired power plant located in the United States, with a total capacity of 2428 megawatts (MW). Commissioned in 2003, the facility is owned and operated by Entergy Arkansas LLC, a subsidiary of Entergy Corporation, which serves millions of customers across the southern United States. This power station plays a crucial role in meeting the energy demands of the region, contributing to both the stability and reliability of the electricity grid in Arkansas and surrounding areas.

The Union Power Station primarily utilizes natural gas as its fuel source. Natural gas is favored for its lower carbon emissions compared to other fossil fuels like coal and oil. It is a cleaner-burning option that produces significantly fewer pollutants, including sulfur dioxide and particulate matter, which are harmful to air quality and public health. The power plant incorporates advanced technology, including combined cycle systems, which enhance efficiency by utilizing the exhaust heat from gas turbines to generate additional electricity through steam turbines. This combined cycle process allows the Union Power Station to achieve higher thermal efficiency compared to traditional single-cycle plants.

In the context of the United States' energy sector, Union Power Station is part of a broader trend towards cleaner energy production. As the nation seeks to transition away from coal and reduce greenhouse gas emissions, natural gas-fired plants like Union are increasingly seen as a bridge to a more sustainable energy future. The plant supports the integration of renewable energy sources by providing a reliable backup during periods when solar and wind generation may be insufficient due to variable weather conditions. This flexibility is vital for maintaining grid stability and ensuring that energy supply meets demand.

Regarding environmental impact, while natural gas plants are less polluting than their coal counterparts, they are not without challenges. Methane, a potent greenhouse gas, can be released during natural gas extraction and transport. Therefore, the operation of gas plants must be carefully managed to minimize leaks and emissions. Union Power Station has implemented various measures to mitigate its environmental footprint, including monitoring systems and technology aimed at reducing emissions.

Regionally, Union Power Station holds significant importance for the local economy and energy landscape. The plant provides jobs and stimulates economic activity in the surrounding areas, contributing to the socioeconomic stability of the community. Additionally, its operational capacity is essential for meeting the energy needs of Arkansas, especially during peak demand periods. By supplying reliable, affordable electricity, Union Power Station is an integral part of Entergy Arkansas's commitment to providing efficient and sustainable energy solutions to its customers.

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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