Steve Miller's Blog

Data Centers Are Waiting in Line for Power: What Grid Interconnection Delays and Temporary Local Moratoriums Mean for Your Capacity Plan

Three colleagues in business casual stand outside a large data center building at sunset as one points toward high-voltage power transmission towers

Imagine your 2027 capacity plan assumes a new colo cage in a fast-growing market, or a cloud region expansion that your provider has hinted at. Now imagine that plan depends on two things that never show up in a hardware quote: a utility’s interconnection study and a county board vote. That is the planning risk behind data center power grid interconnection delays, and the 2026 evidence says it deserves a line on the risk register.

I want to be careful about scope here. I am not going to claim the chip shortage is over, or that power is now the only constraint. No source I checked says that. What the sources do show is that grid operators are rationing how fast large loads connect, and that some local governments have paused new data center approvals while they study power and water impacts.

Texas: A Queue Bigger Than the Grid

ERCOT, the Texas grid operator, published a June 18, 2026 explainer on its new batch connection process. It says that as of mid-2026, large users “totaling more than 438,000 MW of proposed demand had entered ERCOT’s connection queue,” and that “Nearly 90% of those requests were from data centers.” For scale, ERCOT notes its all-time peak demand record is 85,508 MW, set on August 10, 2023. It defines a large user as a single site with peak demand above 75 MW. A later ERCOT presentation to the Texas Senate on July 29 put the figure at approximately 474 GW of large loads seeking interconnection as of June 2026, with about 90% data centers.

Those are requests, not buildings. ERCOT says plainly that “not all connection requests result in built projects.” The interesting part is how it is responding. ERCOT says studying requests one at a time “triggered costly restudies that delayed completion timelines.” So it moved to a batch process designed so large users “only connect in quantities and locations the Texas transmission grid can support.” Under that process, a project may get its full requested capacity, “a partial allocation, or may need to wait until a subsequent batch.”

ERCOT’s own published timeline shows how far out this runs. Batch Zero began in July 2026. Each large user gets its reliable allocation in spring 2027, a final transmission plan follows in fall 2027, and applications for Batch 1 open in summer 2027. ERCOT also offers optional pathways for customers that bring on-site generation or agree to let ERCOT curtail their load during local grid stress.

California and Florida: Temporary Local Pauses

The moratorium part of the headline holds up, with an important qualifier: these are temporary, local land-use pauses, not statewide bans.

On the utility side in California, the picture is more mixed than “everyone is stuck.” PG&E’s own October 5, 2026 newsroom piece says that “Across the country, the time needed to get power is slowing data center projects.” It then argues its own grid “has open capacity today” and that some parts of its territory can add 50 to 100 MW using existing equipment. It adds that this “does not mean every project can connect at once or in any location.” That is a utility describing its own system, so I would treat it as a positioning statement worth verifying site by site, not a guarantee.

What Data Center Power Grid Interconnection Delays Mean for IT Capacity Planning

The rest of this post is my opinion and practical advice, not a finding from the sources. Most IT shops do not file interconnection requests. Our exposure is indirect: the colo provider, the cloud region, or the hosting partner that does. But indirect is not the same as absent. If a provider’s new hall depends on a batch allocation that lands in spring 2027, your expansion date depends on it too.

A few things I would do now:

The Plan Now Has a Utility Dependency

For years, capacity planning was mostly about budget, space and hardware lead times. Those still matter. The 2026 record adds two more dependencies most of us did not model: a grid operator deciding how much load a region can take, and a local board deciding whether to approve new facilities at all. Neither one is a reason to panic. Both are reasons to ask better questions before you sign.

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