The constraint on data center construction stopped being money a while ago. As of Monday it’s a signature.
Texas Gov. Greg Abbott sent a letter on Aug. 3 to Public Utility Commission of Texas Chairman Thomas Gleeson and ERCOT CEO Pablo Vegas ordering an audit of every data center sitting in the interconnection queue, and pausing new large-load interconnections while it runs. Two days later Bloomberg NEF put a number on it: roughly 49.8 gigawatts of Texas projects affected, about 20% of the entire U.S. data center pipeline.
What the audit actually asks
ERCOT’s interconnection queue holds something like 474 GW of requests. That’s more than five times the grid’s all-time peak demand record. “Approximately 90 percent of the new power requests are data centers,” Abbott wrote.
The audit criteria are narrow and specific: whether a project self-generates power, how much water it uses, and which state or federal tax incentives, grants, or abatements it’s taking. Projects that don’t comply get denied. ERCOT has already delayed review of “Batch Zero,” the first group of projects under the new large-load interconnection process the PUCT approved on June 18.
Why 49.8 GW is a national number, not a Texas one
BNEF’s analysis works from roughly $1.76 billion in revenue per gigawatt per month for AI compute capacity. Assume 60% of the delayed capacity is AI-related and you get up to $8 billion of leasing revenue at risk by the first quarter of 2027. The near-term forecast is thinner still: BNEF now expects only about 1.2 GW of ERCOT data center additions between Q2 2026 and Q1 2027, against a longer-run projection of 8.25 GW added through 2030.
More than 70% of the roughly 50 GW BNEF tracks in Texas is still early stage, which cuts both ways. Early-stage projects have less sunk cost. They also have the least ability to argue they’re too far along to stop.
What it means on the ground
Data centers have been the one nonresidential segment holding up volume while everything else softened. Our coverage of June construction spending made that point from the demand side; this is the same story arriving from the supply side of the grid.
For a GC or electrical sub staffing up around ERCOT, the risk profile just changed shape. You’re no longer worried about losing a bid. You’re worried about mobilizing a crew for a job whose energization date became indefinite between award and notice to proceed. Contracts written on the assumption that interconnection is a schedule item rather than a go/no-go gate are about to get read closely.