CenterPoint Adds $1.2 Billion to Grid Plan as Houston Data Center Power Demand Surges
Published · 5 min read
CenterPoint Energy said on July 28 that it has added $1.2 billion to its 10-year capital investment plan as Houston data center power demand and other large electricity users seek substantially more power across the region.
The utility’s planned investment for 2026 through 2035 now totals $66.7 billion, while more than 17 gigawatts of proposed large-load projects have entered ERCOT’s Batch Zero review process.
Reuters independently reported that data center demand was a central factor behind the revised plan.
More than 17 GW entered the Batch Zero process
CenterPoint said it submitted more than 17 gigawatts of proposed large-load projects through ERCOT’s new Batch Zero review process. The utility currently expects approximately 14 GW of that total to qualify as either base load or studied load.
The proposed 14 GW would equal more than 65% of CenterPoint’s current Houston Electric peak-system demand of approximately 21 GW, according to the company’s second-quarter disclosure.
Those figures represent project submissions and expected classifications, not completed facilities or guaranteed future electricity consumption. Some developments may be delayed, reduced, relocated, combined with other projects, or canceled before they connect to the grid.
The comparison with current peak demand illustrates the size of the pipeline but should not be interpreted as a forecast that the entire amount will connect at once or operate continuously at full capacity.
How ERCOT’s Batch Zero process works
The Public Utility Commission of Texas approved Batch Zero in June as a transitional method for evaluating major electricity users seeking to connect to the ERCOT system.
The framework groups qualifying projects of at least 75 MW into a single system-wide study rather than examining each request primarily in isolation. ERCOT can then evaluate their combined reliability effects, determine how much new demand can be supported in different locations, and identify transmission upgrades that may be required.
ERCOT said in its official Batch Zero announcement that it was tracking more than 438 GW of large-load requests across Texas, with approximately 89% associated with data centers. The number represents requests under consideration, not projects certain to be built.
The approved rules took effect on July 11. The underlying planning-guide revision requires qualifying projects to meet study-maturity and commitment criteria before being evaluated within the batch.
Why CenterPoint is increasing grid investment
Large data centers require more than an electricity-supply contract. Depending on their size and location, projects can require new substations, transmission lines, transformers, distribution facilities, protection systems, and communications equipment.
CenterPoint’s additional $1.2 billion is part of a broader investment plan that also covers customer growth, reliability, resilience, and the downtown Houston infrastructure program. The company has not said that the entire increase will be used exclusively for data centers.
CenterPoint also identified approximately $700 million in possible additional investment to support 3 GW of demand outside the base-load and studied-load categories, Reuters reported. Those opportunities are not included in the confirmed capital-plan increase and remain dependent on project development and regulatory treatment.
Batch Zero could support more flexible connections
ERCOT’s new process includes pathways for large customers willing to reduce their demand under defined grid conditions. It also recognizes projects seeking to use on-site generation to supply some or all of their electricity needs.
These options may create a larger role for data center microgrids, battery storage, demand-response systems, and controllable generation. A facility capable of operating part of its load independently may require less firm grid capacity or may be able to accept a more flexible service arrangement.
A microgrid does not automatically remove the need for transmission investment. A data center that expects the grid to serve its full demand whenever on-site equipment is unavailable may still require substantial network capacity.
The practical value of on-site resources will depend on whether they can operate independently, how long battery systems can sustain critical loads, whether fuel is available during extended emergencies, and how ERCOT and the serving utility account for the resources in reliability studies and service agreements.
The risk of planning around speculative projects
Utilities must plan well in advance because major transmission and substation projects can take years to design, approve, procure, and construct. Waiting until a data center is nearly complete may leave too little time to build the required infrastructure.
Planning too aggressively presents a different risk. A utility could invest in facilities intended for projects that never materialize, potentially leaving other customers responsible for underused assets unless contracts, tariffs, or financial guarantees assign those costs to the applicants.
Batch Zero is designed to improve the quality of the planning pipeline, but it cannot eliminate all uncertainty. Regulators will still need to distinguish between preliminary requests, mature projects, signed agreements, committed financing, and facilities already under construction.
What the investment could mean for customers
CenterPoint said the new large-load connections could reduce Houston Electric residential and commercial delivery charges by at least $5 billion over the next decade by spreading fixed system costs across a broader customer base.
That figure is a company projection rather than an independently verified customer-savings result. The eventual effect will depend on the number of projects that connect, their electricity use, infrastructure costs, applicable tariffs, regulatory decisions, and the degree to which large-load customers pay for the facilities required to serve them.
Future regulatory proceedings are expected to examine whether proposed investments are necessary, which customers benefit from them, and how the associated costs should be allocated.
What happens next
ERCOT expects to notify Batch Zero applicants of their project classifications in August 2026. Those decisions should provide a clearer picture of which projects qualify for further study and which requests require additional information or different treatment.
ERCOT expects to publish a final statewide transmission plan for the full batch in fall 2027. Until then, CenterPoint’s 17 GW submission should be understood as a development pipeline rather than a firm forecast of completed electricity demand.
Regulators and customers will also be watching how much of the submitted capacity converts into signed service agreements, infrastructure construction, and operating data centers.
