US data center developer TeraWulf is set to bring more capacity online at its campus in Kentucky, and to do so faster.

The company this week announced that it has executed an amended and restated electric service agreement with Kentucky Power for its Muskie Data Campus in Kentucky.

The amended agreement will increase contracted power capacity at the campus from 500MW to 1GW.

The amendment also advances planned delivery of Muskie’s second 500MW phase from 2030 to 2029, subject to Kentucky Public Service Commission approval and Kentucky Power’s construction schedule.

The first 500MW phase remains targeted to begin ramping in 2028.

“Customer interest in Muskie has been tremendous, and power availability is central to those conversations,” said Paul Prager, chairman and CEO of TeraWulf. “Securing the next 500MW and moving its planned delivery into 2029 gives us greater flexibility to meet prospective customers’ deployment needs. It also builds on the progress our teams have made with Kentucky Power since we acquired the site.”

The company will also continue to evaluate the campus’ potential to support up to 2GW over time, subject to additional utility planning, infrastructure, and agreements, TeraWulf said in a statement.

TeraWulf acquired the Muskie site in May 2026 from Industrial Equity Partners. Located within the 1,000-acre EastPark Industrial Park, the site totals approximately 285 acres and is zoned for data center use.

Kentucky Power is developing a 765-kV / 345-kV substation connected to the regional transmission network to serve the site.

TeraWulf is currently operating a campus outside Buffalo, New York, at a former coal power plant. It initially mined cryptocurrency at the site before beginning to pivot the 180-acre campus towards AI and HPC uses. Core42 and Fluidstack are live customers at the site.

The company is also developing sites in Maryland and Kentucky, and is planning a second development in Lansing, New York.

TeraWulf’s other campus in Kentucky, the 480MW Justified Data Campus in Hancock County, is set to be developed on a former aluminum processing site acquired from Century Aluminum. The first facility on the 790-acre site is due online in 2027. Century Aluminum operated there from 1969 to 2022. Anthropic is set to lease capacity at the site.