Nuclear Plant's Second Act: Data Centers Fuel Revival

The Three Mile Island Unit 1 nuclear reactor, idled in 2019, is set to resume operations as the Crane Clean Energy Center, powered by a new 20-year agreement with Microsoft. This restart is driven by the massive, reliable electricity demands of data centers and their operators' carbon-free energy goals. The plant's technology remains unchanged, highlighting how customer demand can revitalize previously uneconomical assets.

This event signals a shift in clean energy investment. While venture capital for climate-focused funds has slowed, investment in clean energy startups reached a three-year high in 2025, attracting generalist investors and corporate buyers. Technologies are winning by proving their value through economics and performance, a strategy exemplified by AI's rapid adoption, rather than relying on perceived urgency.

Successful climate technologies, like solar power with its 90 percent cost reduction between 2010 and 2023, are shifting their pitch from 'paying a premium to do good' to offering cheaper power and price certainty. Similarly, heat pump shipments now outpace gas furnaces. The future of climate innovation lies in becoming inseparable from everyday business operations, transforming from a niche movement into an integrated market advantage, much like electricity did a century ago.