For most of 2026, the bear case on the US power producers could be summed up in one sentence: nobody is signing data center PPAs in PJM. Last week Amazon did. This morning Google did, too, and this one is five times bigger.

Google parent Alphabet has contracted for 3,590 megawatts of power from Constellation Energy (CEG) inside PJM, the largest US grid, the companies said on Tuesday, according to Reuters, confirming an overnight report from Bloomberg. Roughly a quarter of it, 890 MW, is new nuclear capacity squeezed out of 11 existing reactors under a 20-year PPA backed by more than $4.3 billion of Constellation investment, expected to start delivering in 2028. The rest is a long-term supply agreement for another 2,700 MW. And in case anyone missed why this is happening now, the companies said it outright: the deal is a response to PJM's "bring your own power" proposal.

Constellation shares jumped as much as 14% premarket (they were up 6.3% when Bloomberg first broke the story last night), trading above $300 for the first time in a month.