Breaking: Grid Emergency Kept Lights On Across 13 States and D.C.
Federal officials granted temporary authority to stabilize the PJM Interconnection grid from October 13 to October 16 without requiring households to cut power.
By Fatou Kim ·
The U.S. Department of Energy declared a power grid emergency that covered 13 states and the District of Columbia. Energy Secretary Chris Wright issued the order on Sunday, October 12, 2026, under section 202(c) of the Federal Power Act. This action granted PJM Interconnection temporary emergency authority to keep the regional grid stable from October 13 through October 16, 2026. The order was designed to prevent interruptions rather than to announce scheduled blackouts. No blackouts occurred during this period and no mandatory conservation orders were issued to the public.
For the roughly 67 million people served by PJM, daily electricity use stayed normal and no action was required in their homes. The region includes all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and the District of Columbia. Households did not face mandatory restrictions or curfews for energy usage. The primary focus of the emergency measures was on the wholesale market and large commercial consumers.
PJM coordinates wholesale electricity across this vast territory. The order allowed PJM to call on generators to run in excess of their operating permits as needed. It also authorized PJM to direct data centers and other large electricity users onto their backup generation if necessary. The Department of Energy stated that PJM wanted to deploy auxiliary, standby, directly connected, battery storage, or other generation resources at data centers. This included hyperscaler facilities and other large industrial and commercial customer sites.
The strain on the grid resulted from unusually warm October weather colliding with the fall shoulder season. During this time, generator and transmission owners take equipment offline for maintenance and upgrades ahead of winter. Most scheduled outages are prohibited in the summer, and the summer peak period had ended in mid-September. On Friday, October 9, PJM issued a Capacity Advisory for Monday, October 12, and Tuesday, October 13. This was the first time the procedure was used, a method PJM members endorsed in June 2026 for approaching capacity shortfalls.
PJM’s load forecast showed about 102,000 megawatts of peak demand on Monday and about 104,000 megawatts on Tuesday. This was against previously scheduled generation outages of about 70,000 megawatts plus planned transmission outages. Paul Dajewski, PJM’s senior manager for dispatch, told stakeholders that this volume of outages is typical for the shoulder season. On Monday, October 12, PJM issued a Maximum Generation Alert and a Load Management Alert for October 13. It also extended the Capacity Advisory through October 14 and issued a Maintenance Outage Recall for October 14.
These alerts required no action from customers. A Maximum Generation Alert tells transmission and generation owners that conditions will be tight so they can defer or cancel equipment maintenance and testing. It also informs neighboring grid operators that exports from PJM may be curtailed. On October 13, PJM called on Demand Response programs. These are programs that pay customers who sign up in advance to cut electricity use when the grid is stressed. This payment structure provided a financial incentive for voluntary conservation among participating large users.
Scheduled transmission line outages also limited how much electricity could move between zones. Generation was bottled in some areas because of transmission limits. This was particularly true for resources serving congested zones in Washington D.C., Maryland, and Virginia. These specific areas correspond to the BGE, Pepco, and Dominion zones. The combination of high demand, maintenance outages, and transmission constraints created the conditions that necessitated the federal emergency declaration.
PJM notes that the shoulder-season reprieve is not what it used to be. Most of the new, rapidly growing demand comes from data centers and other energy-intensive large-load customers. Their consumption does not fall with the weather; it is a 12-month, 24/7 phenomenon. That expanding demand is outpacing new transmission and electricity supply coming onto the system. Unseasonably hot or cold weather now arrives outside the traditional peak seasons, adding further complexity to grid management.
According to the PJM Winter Outlook released on November 5, 2026, the organization expects sufficient resources to reliably meet demand this winter under expected conditions. Reserve margins continue to tighten as demand outpaces new supply. PJM expects 182,426 megawatts of operational capacity to serve a forecast winter peak of approximately 147,500 megawatts. This figure includes about 3,200 megawatts of average exports to neighboring systems. That peak would set a new winter record if reached. Michael Bryson, PJM’s senior vice president of operations, said the goal is to coordinate operations with the generation and transmission owners and proactively manage the system to perform at high levels when consumers need energy the most.
