The largest U.S. power grid operator, PJM, has announced a landmark proposal to secure 15 gigawatts (GW) of new electricity generation to meet the explosive demand from AI data centers.
This emergency measure is a direct response to a series of escalating reliability warnings. First, PJM's capacity auction for the 2027/28 period, held in December 2025, ended with a 6.6 GW shortfall, failing to meet its required 20% reserve margin. This created a clear, quantified gap between available supply and projected demand, signaling that the existing market mechanisms were not bringing enough power online quickly enough.
Then, the problem became tangible during Winter Storm Fern in January 2026. Extreme cold stressed the grid to its limits, forcing the Department of Energy to issue emergency orders to keep the lights on. Wholesale electricity prices skyrocketed, with one hub hitting a record of nearly $890 per megawatt-hour (MWh), more than four times the monthly average. This event demonstrated the real-world consequences of a tight power supply and added political urgency to find a solution.
Underlying these immediate crises is a massive structural shift in demand. PJM's own forecasts project a staggering 65.7 GW increase in peak summer demand over the next decade, largely driven by the power-hungry data centers fueling the AI revolution. In this context, the 15 GW proposal is a critical intervention, but it only addresses about a quarter of the anticipated long-term need.
Therefore, PJM's plan represents a significant pivot in strategy. Instead of relying solely on incremental market reforms, which have proven too slow, it is pursuing a one-time, government-backed 'Reliability Backstop Procurement'. This approach, supported by the White House and state governors, will act as a "matchmaker" to directly connect new power plants with large new loads like data centers. It aims to fast-track construction and ensure that a reliable power supply is in place to support critical economic growth.
- PJM (PJM Interconnection): A Regional Transmission Organization (RTO) that coordinates the movement of wholesale electricity in all or parts of 13 states and the District of Columbia, making it the largest grid operator in the U.S.
- Capacity Auction: A market mechanism used by grid operators like PJM to procure commitments from power plants to be available to generate electricity in the future, typically three years ahead, ensuring long-term grid reliability.
- FERC (Federal Energy Regulatory Commission): An independent U.S. government agency that regulates the interstate transmission of electricity, natural gas, and oil.