A gigawatt of generators: data centers are learning to skip the grid queue entirely

Enerflex Ltd., a Calgary-based maker of modular gas equipment, told investors on October 13 that it had won a contract to design and build more than 1 gigawatt of natural-gas generation for a large North American data center. Combined with a roughly 450-megawatt award it announced two weeks earlier, the company's behind-the-meter power backlog now tops 1.75 GW, with deliveries running through 2028. Enerflex didn't name the customer, the site, or the state. It didn't disclose the contract's dollar value either.

The market didn't need the details to react. Enerflex shares jumped roughly 13% on the news, and CIBC upgraded the stock to Outperformer with a $35 price target. CEO Paul Mahoney framed the deal as proof of a structural shift: 'The demand for reliable, prime power that does not require grid connection' is growing, he said, tying it directly to AI and digital infrastructure buildout. Enerflex has approved about $100 million to expand its Engineered Systems manufacturing capacity to keep up, with $15 million of that already baked into 2026 capital spending.

The pitch: skip the queue, build your own plant

The appeal of behind-the-meter generation is straightforward. Interconnection queues at major grid operators now routinely run three to five years for large loads, and transformer and turbine lead times stretch well beyond that. A data center that brings its own gas-fired generators avoids waiting on a utility's interconnection study, avoids a rate case fight over who pays for new transmission, and can start running GPUs as soon as the hardware arrives. Enerflex's own numbers illustrate the scale of the shift: its distributed-power sales pipeline beyond the booked backlog now exceeds 7 GW, and its total Engineered Systems backlog sits around $1.45 billion.

But the Enerflex release is also notable for what it omits. There's no unit count, no confirmation of whether the generators are turbines or reciprocating engines, no emissions testing behind the 'low emission' label Enerflex applies to the equipment, and no indication of when the customer's data center actually needs the power online. Those gaps matter, because the handful of behind-the-meter data center projects that have become public this year show the model running into real friction once it's built, not before.

Two warnings from sites already running off-grid

The clearest case is in Vineland, New Jersey, where state regulators fined data center operator DataOne roughly $1.07 million last month after a drone survey found 62 gas generators running without air permits at a facility reportedly powering Microsoft Copilot workloads. New Jersey officials said the equipment had been polluting the air for nearly a year before anyone intervened — the largest such penalty the state has levied against a data center, and a direct illustration of what happens when 'bring your own generation' outruns the permitting process meant to govern it.

The other warning points the opposite direction: that going around the grid doesn't fully insulate a project from infrastructure delay either. Oracle filed a force majeure notice on its 2.45-gigawatt Project Jupiter campus in New Mexico after a natural gas pipeline serving the site fell behind schedule, an admission that even a developer building its own gas supply chain can get stuck waiting on upstream infrastructure it doesn't control. Between a pipeline that isn't finished and a permit nobody filed for, the two incidents bracket the real risk in Enerflex's growth story: the equipment is gettable, but the fuel supply and the regulatory sign-off are not guaranteed to arrive on the same schedule.

The demand for reliable, prime power that does not require grid connection [is growing].

Why this is different from the gas-turbine shortage story

Most of this year's coverage of AI power constraints has focused on waiting: turbine order books stretching past 2030, interconnection studies stacking up at grid operators, utilities asking data centers to prepay for capacity they might not use. Enerflex's backlog is the mirror image — proof that a meaningful slice of the industry has simply stopped waiting and started buying generators outright, as a standing business line rather than a stopgap. That shift changes who the relevant regulator is. It's no longer primarily a utility commission deciding how to allocate scarce grid capacity; it's state and local air-permitting agencies, which were not built to process a sudden wave of gigawatt-scale, permanently sited gas plants that never touch the transmission grid at all.

Enerflex is betting that demand curve keeps climbing regardless of how the first generation of behind-the-meter sites performs. Its backlog says the market agrees, for now. But Vineland's $1 million fine and Oracle's own force majeure notice suggest the easier path around the interconnection queue just relocates the bottleneck — from a grid operator's study timeline to an air regulator's inbox, and from a transmission line that someone has to build to a pipeline that someone still has to finish.