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Braidwood & Byron Nuclear Uprate Program

Sector: Power Generation (CCGT) • Location: Braidwood, Byron, Illinois, United States

Source: Construction Review

Project
Implementation Underway

Constellation is investing $800 million to increase electricity generation capacity at its Braidwood and Byron Nuclear Generating Stations in Illinois. The project involves power uprates that will add a combined 158 megawatts to the grid, enough to power roughly 100,000 homes annually. The upgrades include refueling, maintenance, and capacity expansion to enhance grid reliability. Work at Byron be

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The project “Braidwood & Byron Nuclear Uprate Program” is an infrastructure initiative in the Power Generation (CCGT) sector, located in Braidwood, Byron, Illinois, United States. Taiyo aggregates data on it from Construction Review.

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Description

Description

Constellation is investing $800 million to increase electricity generation capacity at its Braidwood and Byron Nuclear Generating Stations in Illinois. The project involves power uprates that will add a combined 158 megawatts to the grid, enough to power roughly 100,000 homes annually. The upgrades include refueling, maintenance, and capacity expansion to enhance grid reliability. Work at Byron began in March 2026 and is expected to complete in 2028, while Braidwood upgrades will start in spring 2027 and complete in 2029.

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