IN Brief:
- No further data-centre project may advance until the state audit is completed.
- ERCOT is considering approximately 474GW of proposed connection requests.
- Around 90% of new power requests are attributed to data centres.
The Texas Governor’s Office has directed the Public Utility Commission of Texas and the Electric Reliability Council of Texas to audit every data-centre project advancing through ERCOT’s interconnection process. No further project is to progress until the verification exercise has been completed.
The directive applies to proposed data centres seeking access to the Texas grid and states that projects failing to meet commission, system-operator, or state-law requirements must be denied connection. It follows concern that some developers did not fully respond to an earlier state survey covering electricity and water use.
ERCOT is considering approximately 474GW of proposed connection requests, according to the directive. Around 90% of the new power requests are associated with data centres, and the total is more than five times the system’s record peak demand. The queue represents proposed load rather than committed consumption, but even a limited proportion progressing would materially affect network planning.
Large data centres can combine high continuous demand with relatively short development schedules and concentrated locations. One project may require new substations, transmission reinforcement, transformers, protection systems, and firm supply arrangements. Several facilities seeking capacity in the same region can turn an apparently manageable connection into a wider network constraint.
The audit requires disclosure of projected annual and peak electricity consumption, together with information on on-site generation and measures intended to reduce demand on ERCOT. Developers must explain whether the grid will supply the full load or whether electricity will be generated or procured through other arrangements.
On-site generation does not automatically remove the network impact. A facility may still require full grid import during maintenance, fuel interruptions, or equipment failure, while parallel operation or export introduces further protection and control requirements. Connection studies therefore need credible operating scenarios rather than a nameplate figure for generation installed behind the meter.
Water use forms another part of the review. Developers must provide annual and peak consumption, proposed supply sources, reuse arrangements, and cooling technology. Air-cooled, closed-loop, and evaporative systems carry different electrical and water requirements, linking the building’s cooling design directly to local infrastructure planning.
The directive also requests details of tax incentives, grants, abatements, and other public support. This introduces a cost-allocation question alongside the engineering audit: whether the developer will fund the infrastructure required by the project or whether part of the burden will fall on utilities, communities, and other customers.
Ownership and controlling interests must also be identified. For network planning, the immediate benefit is accountability and a clearer assessment of whether an applicant has the land, finance, customer commitment, and authority required to progress. Speculative or duplicated requests can distort forecasts and lead engineers to plan around loads that may never be constructed.
Removing weak applications could improve the quality of ERCOT’s demand forecast, although the freeze may also delay projects capable of meeting the requirements. The directive does not specify an audit completion date, scoring method, or order for reviewing applications, leaving uncertainty over when compliant schemes can resume.
The engineering issue extends beyond annual generation. The grid must meet peak demand in defined locations, maintain frequency and voltage, carry credible contingencies, and recover from equipment failures. A cluster of data centres can require substantial reinforcement even when the wider system has sufficient annual electricity production.
Demand flexibility may reduce some pressure where operators can shift computing activity, use storage, curtail non-essential loads, or operate on-site generation during stressed periods. The available flexibility will vary between facilities. Data centres supporting continuous services may have less freedom to reduce demand than initial development proposals suggest.
The audit gives PUCT and ERCOT an opportunity to apply consistent assumptions to a rapidly expanding connection queue. Useful outcomes would include clearer evidence requirements, realistic demand profiles, enforceable operating conditions, and transparent responsibility for reinforcement costs.
The pause is a blunt response to an unusually large pipeline, but continuing to process uncertain applications would also carry costs. Texas now has to distinguish credible projects from speculative demand before engineers reserve capacity, design reinforcements, and commit network investment around them.
