Energy Secretary Chris Wright issued an emergency declaration this week directing the nation's largest electrical grid operator to prevent blackouts as a punishing heat wave settles over the East Coast, Midwest, and South, threatening to push power demand past records that have stood for two decades.
The Energy Emergency Alert, first reported by ABC News, went into effect at 11:59 p.m. Tuesday and runs through 11:59 p.m. Friday. It targets PJM Interconnections, the Mid-Atlantic grid operator that supplies electricity to roughly 65 million customers across Washington, D.C., and all or parts of 13 states, from Pennsylvania and Virginia to Ohio, Michigan, and North Carolina.
Some 160 million people in 30 states are under alert for extreme temperatures. And the timing could hardly be worse: the Fourth of July weekend, when residential air conditioning demand surges as Americans stay home to celebrate the nation's 250th birthday.
PJM is forecasting peak electricity demand of 166,304 megawatts on Thursday. If that number holds, it would shatter a record set in 2006, the last time the grid faced comparable stress.
The forecast heat indices tell the story. Washington, D.C., faces a projected heat index of 113 degrees. Philadelphia: 112. Nashville: 111. New York City: 110. Chicago and Detroit: 100.
Wright's directive orders PJM officials to conserve energy by curtailing power to data centers that have backup generators and to other non-emergency facilities that consume large amounts of electricity. Hospitals and other essential operations must remain fully functioning.
Wright stated the administration's position plainly:
"Maintaining affordable, reliable, and secure power in the PJM service territory is non-negotiable."
That word, "non-negotiable", carries weight at a moment when grid reliability has become a live political issue, not a theoretical one.
PJM is not the only system under pressure. The New York Independent System Operator, which runs New York State's grid, expects electricity demand to approach record highs over the next several days. The Midcontinent Independent System Operator, covering 15 states in the Midwest and South, said it could also break its own peak demand record.
ISO-New England, which provides power to Massachusetts, Connecticut, Maine, New Hampshire, Rhode Island, and Vermont, anticipates peak demand of 25,850 megawatts on Thursday. That falls below its all-time record of 28,000 megawatts set on August 2, 2006, but the margin is not as comfortable as it sounds.
ISO-New England spokesperson Matthew Kakley acknowledged the challenge in a statement:
"At a high level, we're expecting tight conditions on the system this week due to the very high temperatures, particularly tomorrow (Thursday). Weather events like these, which spread geographically across our neighboring regions, can limit our ability to assist each other, but we remain in close contact with our partners in New York and Canada about conditions in their areas."
Kakley added that ISO-New England anticipates having the resources to meet consumer demand and required reserves, but that operators have "tools at their disposal" if conditions deteriorate. The careful language, "if needed," "closely monitoring", reflects the kind of hedging grid operators resort to when they are not fully confident in their cushion.
One factor that makes this heat wave particularly dangerous for grid stability: the usual safety valve may not be available. ISO-New England imports some low-cost electricity from Canada. But Canada is experiencing its own significant heat wave, raising serious questions about whether surplus power will flow south when American grid operators need it most.
Ramanan Krishnamoorti, vice president of energy and innovation at the University of Houston, laid out the problem directly:
"Canada is also going through a significant heat wave. So, I'm not sure there will be enough supply from Canada to bring it across the border."
Krishnamoorti told ABC News he expects record peak demand across multiple geographic areas and described a grid under extraordinary stress.
"Everything is sort of stretched to the limit."
The residential cooling load, he said, will dominate demand, particularly through the afternoon and late evening hours. The July 4th weekend compounds the problem. "Everybody is going to be home for the July 4th weekend, and because of that, you're going to see, I think, a significant load on the grid," Krishnamoorti said.
Wright's emergency order directing PJM to curtail power to data centers with backup generators highlights a tension that has been building for months. Data centers, driven by the explosion in artificial intelligence, have become voracious consumers of electricity, and their demand is growing far faster than the grid's capacity to keep up.
The Trump administration has already moved to address this structural problem. The Washington Examiner reported that the administration, working with a bipartisan group of governors, announced a plan requiring tech companies and data centers to fund new power generation capacity within the PJM grid. The plan calls for an emergency wholesale electricity auction offering 15-year contracts for new generation capacity while capping what existing power plants can charge.
The scale of the challenge is staggering. Data center electricity demand is expected to surge from 34.7 gigawatts in 2024 to over 100 gigawatts by 2035, according to BloombergNEF. Electricity prices have already risen 6.7 percent in the year ending December, more than double the overall rate of inflation.
President Trump addressed the issue on Truth Social: "I never want Americans to pay higher Electricity bills because of Data Centers." Wright echoed that priority, stating the administration wants to "make it easier to build things in America, because that's how we can stop price rises and grow opportunities."
The emergency order this week puts that principle into immediate practice. When the grid is at its breaking point, data centers with backup generators get curtailed first. Hospitals stay on. Homes stay cool. The hierarchy is clear.
No rolling blackouts have been confirmed as of the article's publication. But the possibility is real, and grid operators are not ruling it out. The combination of record-breaking heat, holiday residential demand, constrained imports from Canada, and the relentless growth of data center consumption creates a scenario that leaves little margin for error.
Krishnamoorti summarized the outlook bluntly: "I think you're going to see massive challenges in terms of demand."
The 2006 records that PJM and other operators are approaching were set twenty years ago, before the AI boom, before the proliferation of data centers, before electrification mandates added load to grids that were already aging. The fact that those benchmarks are only now being threatened speaks to how much slack the system once had. The fact that they may fall this week speaks to how much of that slack has been consumed.
An Energy Emergency Alert is not routine. It is an acknowledgment that the normal functioning of the electrical grid cannot be taken for granted, that the margin between keeping the lights on and watching them go dark has narrowed to the point where federal intervention is required.
The Wright directive is the right call. Prioritizing hospitals and homes over data centers that have their own backup power is common sense. But the fact that the nation's largest grid operator needs a federal emergency order to manage a summer heat wave should concern every American who pays an electric bill.
For years, policymakers have piled new demand onto the grid, data centers, electric vehicle mandates, electrification goals, while making it harder to build the generation capacity needed to meet that demand. Permitting delays, environmental litigation, and regulatory uncertainty have slowed new power plant construction to a crawl. The result is a grid that runs hotter, tighter, and closer to the edge every summer.
The open questions remain pressing. Has PJM confirmed it will comply with the curtailment directives? Which specific data centers face power reductions? Has MISO or NYISO issued its own formal emergency declarations? None of these answers appeared in initial reporting.
What is clear is that 65 million PJM customers, and tens of millions more across neighboring grids, are heading into the hottest days of the year hoping the system holds.
A nation that can build artificial intelligence capable of writing legal briefs and diagnosing diseases ought to be able to keep the air conditioning running on the Fourth of July. The fact that it's a close call tells you everything about where our energy priorities have gone wrong.
