04:55 AM EDT, 07/31/2025 (MT Newswires) -- NorthWestern Energy ( NWE ) said late Wednesday it signed a letter of intent to provide energy services for Quantica Infrastructure's proposed data center development in Montana.

The company said the projected phase 1 energy service load is 500 megawatts, with phased growth to 1 gigawatt. Initial electric service could begin as soon as 2026.

NorthWestern said the expected expansion to full phase 1 of the data center development is 2030, depending on a number of factors.