Over the next decade, data centers are expected to be the second-strongest driver of natural gas demand growth after LNG exports. The facilities could consume about 18 billion cubic feet per day, according to a new report from BloombergNEF, nearly double the amount the organization predicted just nine months ago. 

The new forecast takes into account that not all announced data center projects will be completed.

Data centers that produce power onsite have grabbed headlines in recent months, with Meta, Microsoft, Google, and Amazon all announcing plans for new natural gas power plants that will bypass the grid. Projects such as these will consume 2.9 billion to 3.4 billion cubic feet per day by 2035. That’s about as much as all data centers consume today, including natural gas used to generate power for the grid.

But onsite-powered data centers could represent just a fraction of overall demand growth, according to BloombergNEF.

By the middle of the next decade, grid-connected data centers are predicted to drive an additional 15 billion cubic feet per day of natural gas consumption by the power sector. To put that in context, that’s five times more demand growth through 2035 than from all other grid-connected sectors combined.

If that stunning demand growth materializes, it could nudge natural gas prices higher. 

Much of today’s data center buildout relies on stable natural gas prices, which have prevailed in recent years. But analysts at Noreva think that might be a false hope. The combined impact of the data center boom and rising LNG exports could cause prices to soar. Even if tech companies’ balance sheets can bear such a surge, utility ratepayers might not be able to.

Then there’s the climate impact. 

Burning one cubic foot of natural gas releases the equivalent of 60 grams of carbon dioxide into the atmosphere, including extraction, processing, and distribution, according to the IEA. The additional demand from data centers will generate 1 million metric tons more greenhouse gas pollution daily. That’s about 12% of total U.S. greenhouse gas emissions today.