World Power Plants

Byron Nuclear Generating Station2,449.8 MW Nuclear

NuclearVerified: Mar 2026

The Byron Nuclear Generating Station stands as a critical component in the energy infrastructure of the United States, particularly in Illinois. With a total capacity of 2449.8 MW, this nuclear power plant has been operational since its commissioning and is owned and operated by Exelon. Located at coordinates 42.0742° N, 89.2819° W, Byron is strategically placed to serve the energy needs of the Midwest, providing a steady source of low-emission electricity. The plant employs pressurized water reactor technology, which is a well-established method for nuclear energy generation, known for its operational reliability and minimal environmental impact. As the demand for clean energy surges, Byron plays a crucial role in the regional energy mix, complementing renewable sources and reducing dependence on fossil fuels. The significance of Byron extends beyond its capacity; it embodies the ongoing transition in the U.S. energy policy landscape, where nuclear power is increasingly recognized for its ability to support grid stability and contribute to decarbonization efforts. Exelon’s commitment to safety and efficiency ensures that Byron remains a key player in Illinois' energy future, reinforcing the importance of nuclear power as a sustainable energy solution.

Capacity
2,449.8 MW

2.45 GW

Commissioning Year
1985

41 years old

Owner
Exelon
Location
42.0742°, -89.2819°

United States of America, North America

Context & rankings
  • 48. largest of 10,098 plants in United States of America
  • #522 worldwide by installed capacity
  • #137 of 514 Nuclear plants worldwide
  • 0.17% of the installed capacity of United States of America
Age & fleet comparison

41 years in operation

Nuclear fleet average: 38.1 years

Operator portfolio

Exelon operates 10 plants totalling 15,655 MW

Regional density

65 plants within 100 km, 12,027 MW combined

Nearest plant: Orchard Hills Renewable Energy Station (18.4 km)

Data provenance

Source: Wikidata

Location

Coordinates:: 42.074200, -89.281900
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Byron Nuclear Generating Station is a nuclear power plant producing approximately 18241 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~12 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Nuclear
Energy Source
Non-Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

Byron Nuclear Generating Station: A Pillar of Nuclear Energy in the USA

The Byron Nuclear Generating Station is a significant nuclear power facility located in Byron, Illinois, with a total generating capacity of 2,449.8 megawatts (MW). Owned and operated by Exelon Corporation, one of the largest competitive energy providers in the United States, this power plant plays a crucial role in the country's energy sector by providing a substantial portion of the electricity needed to meet regional demand. As a nuclear facility, Byron contributes to the diversification of the energy mix, offering a reliable source of baseload power that helps stabilize the grid, particularly during peak demand periods.

The Byron Nuclear Generating Station utilizes nuclear fission as its primary energy source, relying on enriched uranium fuel to generate heat. This process involves splitting the nuclei of uranium atoms, which releases a significant amount of energy used to create steam that drives turbine generators. The facility consists of two boiling water reactors (BWRs), designed to maximize efficiency and safety in electricity production. With advanced safety systems and rigorous regulatory oversight, Byron adheres to strict operational standards set forth by the U.S. Nuclear Regulatory Commission (NRC).

In terms of environmental impact, nuclear power is often lauded for its low greenhouse gas emissions during energy generation, making it a cleaner alternative to fossil fuels such as coal and natural gas. The Byron Nuclear Generating Station produces minimal air pollutants and contributes substantially less to climate change compared to traditional energy sources. However, the plant also faces challenges related to the management of nuclear waste, which requires careful handling and long-term storage solutions to ensure safety and environmental protection.

Regionally, the Byron Nuclear Generating Station is a vital asset for the local economy and energy infrastructure. The facility not only provides high-paying jobs to skilled workers but also supports local businesses through its operational expenditures. Additionally, its ability to produce large quantities of electricity helps to ensure energy reliability for millions of consumers in the Midwest. The plant is interconnected with various transmission lines that distribute power throughout Illinois and neighboring states, reinforcing the importance of nuclear energy in maintaining grid stability and meeting the demands of a growing population.

Overall, the Byron Nuclear Generating Station exemplifies the role of nuclear power in the United States' energy landscape, demonstrating how advanced technology can provide substantial electricity generation while minimizing environmental impacts. As the nation continues to grapple with the challenges of energy transition and climate change, facilities like Byron will remain integral to achieving a balanced and sustainable energy future.

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
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