Sentinel backs off Maine mill data centre plan

Sentinel Data Centers has backed off plans to develop a data centre at the former Androscoggin Mill in Jay, Maine. JGT2 Redevelopment, its planned partner on the $550m project, told local officials Sentinel does not now intend to move forward. The project had been expected to create around 1 million sq ft of colocation space, making the retreat a signal for industrial reuse and data centre siting risk.

• JGT2 says the $550m Jay project is now on hold
• The retreat weakens Maine’s pitch for industrial reuse capacity

The fact

Sentinel Data Centers has backed off plans to develop a data centre at the former Androscoggin Mill in Jay, Maine. JGT2 Redevelopment, which planned to partner with Sentinel on the $550m project, told local officials Sentinel does not now intend to move forward. The site was expected to host around 1 million sq ft of colocation space, with work previously set to begin this summer.

The Assessment

Sentinel’s retreat matters because the project had several public advantages: a former industrial site, local support, redevelopment work already under way and a statewide data centre moratorium that was vetoed by Maine governor Janet Mills. The decision signals that adaptive reuse is not enough on its own. Developers still need a bankable mix of power access, economics, permitting confidence and long-term operating certainty.

What to Watch

Watch whether JGT2 secures a replacement data centre partner, and whether Maine lawmakers revive siting or energy-use limits after the failed moratorium effort.

Also read: AI data centres face medium-voltage equipment supply bottleneck

Also read:  Data centre design becomes civic infrastructure