PJM’s board finally put something on paper today, a few days after its CEO told a hearing room he was “fully committed to rise to the challenge.” The something: a backstop capacity auction, and a plan to curtail data centers when the grid gets tight.

That second part is the interesting one. For a month the entire data center conversation has run one direction: more gigawatts needed, forecasts colliding with each other (BNEF’s own model disagreed with itself by 42 GW just yesterday), utilities scrambling to build gas plants nobody wants to be caught without. The load-bearing assumption under all of it was that this demand shows up and gets served, full stop. Curtailment flips that quietly. It says the newest, richest customer on the system might also be the first one asked to power down when supply runs short.

New York did a version of this by a different lever last week: Hochul’s executive order pauses new hyperscale permits for a year, while a broader bill touching existing facilities sits unsigned on her desk. Same instinct, different mechanism, both arriving at the same belated conclusion: “yes to everything” was never actually a plan.

None of this touches affordability directly, and ratepayers are still watching bills climb regardless. But it’s the first time in weeks of reading about data center demand that the load looked less like a fact of nature and more like a policy variable. Something you can, in fact, tell no.

FERC has until September to decide if PJM’s version counts.

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