ERCOT Targets December Audit to Clear 474-GW Data Center Queue
Texas grid officials set a Dec. 10 deadline for reviewing hundreds of proposals, with large-load interconnections frozen until the audit concludes.
ERCOT intends to complete an audit of hundreds of data center interconnection proposals by Dec. 10, grid officials said Thursday (2026-08-20), setting the first concrete timeline for a process that must finish before large-load interconnections in Texas can resume.4
ERCOT officials described the review as a prerequisite for the Batch Zero interconnection study to continue. Without it, no new large loads can advance toward connection to the Texas grid.4
The audit traces back to a freeze Texas Gov. Greg Abbott ordered on Aug. 3 (2026-08-03), after the interconnection queue swelled to roughly 474 GW of requests, around 90% from data centers and more than five times the state's record peak demand. BloombergNEF estimates the pause now puts nearly 50 GW at risk of delay nationally, about a fifth of the U.S. interconnection pipeline.3,4
Oncor, the transmission operator serving the Dallas-Fort Worth corridor, told analysts Thursday (2026-08-06) that about 44 GW of large load projects in its territory had qualified for Batch Zero. With the audit order intervening, when those projects can proceed is unresolved.2
The financial backing for the queue is thin. Only about 4 GW of the 474 GW carries signed transmission service agreements backed by $1 billion in posted collateral. The remainder are speculative queue positions without the financial commitments that indicate imminent construction.3
Evidence from utilities outside Texas points the same direction. Exelon cut its "high probability" data center load from roughly 18 GW to about 11 GW on July 30 (2026-07-30), a reduction of nearly 40%, while its broader interconnection pipeline fell from about 43 GW to 25 GW in a single quarter. The pattern suggests load forecasts embedded in queue applications consistently outrun what developers are prepared to build.3
Gas turbine order books complicate that picture. First-half 2026 turbine orders were priced more than 20% above fourth-quarter 2025 levels, according to oilprice.com, signaling real procurement activity beneath the speculative noise. Second-quarter free cash flow at one major turbine manufacturer hit $5.1 billion, boosted by a $6.4 billion working capital benefit from customer down payments tied to slot reservations, with year-to-date free cash flow running near $9.9 billion — already above what the company generated across all of 2025. Down payments at that scale suggest at least some developers are locking in physical capacity, not merely holding queue slots.3
ERCOT had already moved to contain speculative applications before Abbott's order. On Tuesday (2026-06-02), the grid operator approved rules establishing a batch review process for large loads and setting emergency obligations for large users. CEO Pablo Vegas tempered the growth narrative at the time, saying the earlier projection that as much as 228 GW of queued power could come online by 2032 was "too high of a figure based on realistic expectations."1
The December audit target gives investors and developers something concrete to anchor on, but the timeline is compressed. Assessing hundreds of proposals by Dec. 10 leaves little margin for complications, and any slip pushes interconnection delays further into 2027. NYMEX Henry Hub natural gas front-month was trading at $2.79/MMBtu on Tuesday (2026-08-25), flat on the session, providing no gas-side lift to ERCOT power sentiment in the meantime.4
How much of the 474-GW queue survives the governor's scrutiny will be the governing variable for Texas power load assumptions. Developers with collateral already posted are likely to clear the audit. The rest face deletion — and with them, the demand projections that have underpinned some of the more aggressive ERCOT load growth forecasts.3,4