THE BIGGEST GRID IN AMERICA PUT AI DATA CENTERS FIRST IN LINE TO GO DARK. BITCOIN MINERS ALREADY HAD THAT DEAL. VOLUNTARILY.

PJM runs the biggest electric grid in the United States. It serves 67 million people across 13 states plus Washington DC. On July 31 it filed a new rule with federal regulators. The rule takes effect June 1 next year. Any new company drawing more than 50 megawatts of power at one location gets put first in line to be shut off when the grid runs short. That includes AI data centers.

The math behind the rule is ugly. PJM sees 70,000 megawatts of new demand coming by 2038. Since 2022 it has lost 15,000 megawatts of power generation. Prices to reserve power for a single day jumped from about $29 to $329 in two years. That is 11 times more expensive to guarantee your lights stay on.

An AI data center cannot pause a training run and pick it up later. GPUs are expensive to leave idle. Bitcoin miners can turn off in two minutes and turn back on in an hour with zero product wasted. Miners already sell that flexibility to grid operators in Pennsylvania, Ohio, Virginia, and West Virginia. Contracts have been in place for years. PJM just made it official policy: if you can flex down, you get to stay online.

There is an escape hatch. It is called Bring Your Own New Capacity. If an AI data center wants to skip the curtailment queue it can bring its own power plant or contract for its own generation. That costs money on top of the GPUs. In a market where reserving power costs eleven times what it used to, that math is starting to look like a Bitcoin miner’s business plan.