They are not waiting for the utility
On August 18, Bloomberg and Fortune put a number on something the gas desk has been hearing in hallway talk for a year. Data center developers are done waiting in the interconnection line. They are ordering their own natural gas plants.
BloombergNEF is tracking 99 proposed plants. Bloomberg's analysis says those units would emit about 318 million metric tons of carbon dioxide a year if they run at industry-standard rates. The whole U.S. power sector put out about 1,485 million tonnes last year, according to EIA. Do the division and you get a 20 percent lift from one slice of new infrastructure. Run the plants flat out and the same math gets close to a third.
That is an emissions headline. It is also a gas headline. Behind-the-meter plants do not need a utility yes or an ISO blessing to show up on a load forecast. They need a turbine, a pipe, and a customer that cannot wait four years for a substation.
Why this showed up now
The data center boom already strained the U.S. power system. Some regions put moratoriums on new hookups. Even approved projects sit in yearslong queues. So the developers went around the queue. Amazon, Microsoft, OpenAI, and Anthropic are among the names attached to the buildout. Two of the larger sites alone could put more than 10 gigawatts on the ground, enough to cover New York City on a hot afternoon.
Amazon and Microsoft still say their climate goals have not changed. Amazon is looking at solar and batteries at a West Texas site. Fine. The filings still show gas. The pledges were written before the AI load showed up. The turbines are being written now.
Politico and E&E picked the same analysis up on August 19. The story is not a leak. It is a count.
What it does not do to this week's price
Do not take 99 plants and turn them into a $4 Henry Hub call for September. Most of this steel is not burning yet. East Daley, writing the next day on the Northeast, put the honest filter on a similar pile of announcements. The headline demand is huge. The risked demand is a lot smaller, and it arrives over years, not over this storage season.
For 2026 the market is still the one EIA described. Record production. Fat storage. Freeport in maintenance. The prompt in the high $2s. A data-center plant that reaches COD in 2028 does not drain a salt cavern in August.
What it does is change the 2030 bid. Gas-fired generation serving data centers is one of the few domestic demand stacks that can grow in a straight line while efficiency and coal retirements do the opposite. Pair it with LNG and you finally have two sinks that can take Permian and Haynesville gas without waiting for a cold January.
The Canadian read
This is mostly a U.S. power-stack story. Marcellus, the Gulf Coast, and the Permian will feel it first because that is where the plants and the pipes are. Alberta does not get a data-center bid just because Microsoft needs electrons in Virginia or West Texas.
The indirect path is Henry Hub. If U.S. power burn for AI gets real enough to lift the continental price, AECO can follow on a basis. If the plants stay behind the meter in Texas and the Northeast, Western Canada still needs Kitimat, Woodfibre, and Cedar. Do not write Calgary into a Northern Virginia interconnect queue.
File this as the start of a demand cycle, not as this week's weather trade. Ninety-nine proposed plants is a lot of turbines. Proposed is the word that keeps you honest.