Microsoft Partners with Three Mile Island for Sustainable AI Data Centers

A Mutual Partnership for Renewable Energy

Microsoft, a leading technology company, is seeking sustainable answers to cater to its increasing power requirements. United States' Pennsylvania-based Three Mile Island energy plant, notorious for being the stage of the worst US nuclear accident, is positioned to support Microsoft under a contract spanning two decades. This alliance anticipates the reopening of the plant in 2028 following crucial enhancements. The forthcoming collaboration aims to equip Microsoft with a constant supply of eco-friendly power, crucial for the expanding artificial intelligence (AI) data centers.

Revamping Three Mile Island Plant

Notwithstanding the infamous 1979 incident, Constellation Energy, the plant's proprietor, is poised to reboot a reactor that is separate from the one implicated in the mishap. The accident did not result in any known human casualties but culminated in widespread terror and skepticism, resulting in a long lull in the US nuclear power industry development. However, as apprehensions about climate change amplify and the demand for energy increases owing to AI advancements, nuclear power is gaining renewed interest. Constellation's CEO, Joe Dominguez, shared with analysts that the contract is a strong embodiment of nuclear power's revitalization as a reliable, clean energy provision. According to Dominguez, prior to its premature closing due to financial unsustainability, this plant was amongst the safest, most dependable nuclear facilities on the grid, and they are eager to revive it under a revitalized mission. Furthermore, he describes nuclear facilities as the sole energy source capable of providing a plentiful supply of carbon-neutral energy.

The Potential Impact

Microsoft recognized this partnership as a significant stride towards decarbonizing the grid. The Three Mile Island plant, prior to the infamous incident in 1979, was functioning through its two units. Subsequent to the mishap, Unit 1, which is expected to be utilized under the newfound Microsoft agreement, had continued operations until it's shut down in 2019. The decision came from Exelon, the owner at the time, citing nuclear-generated electricity's impracticality due to the inexpensive natural gas extraction. To refurbish the facility, Constellation intends to invest $1.6bn (£1.2bn), aiming to operate until at least 2054 with regulatory approval. The plant’s reopening is projected to generate 3,400 jobs directly or indirectly, contributing over 800 megawatts of carbon-neutral electricity to the grid, and creating billions of dollars through tax and other economic contributions, according to a study by The Brattle Group. Local media has also reported some resistance arising from the plant's proposed revitalization. Notably, Microsoft isn't the only one leaning on nuclear power to meet escalating energy needs. Earlier this year, nuclear power also drew Amazon's attention to power a data center, a deal that is now being critically examined by regulators.