ERCOT Interconnection Queue Reaches 427 GW—39% of All US Queued Load

CORRECTION (2026-10-02): This release said ERCOT's interconnection queue held 427 GW, "39% of all US queued load". The 39% was a ratio of ERCOT's large-load queue to a generation-queue total, not a share of US queued load, and is withdrawn. DC Hub's canonical ERCOT figures: large-load queue 474.0 GW (as of 2026-06, ERCOT-published); data-center portion 426.6 GW (derived: ~90% of the large-load total); generation interconnection queue 453.8 GW (as of 2026-09-30), a separate queue. A load queue and a generation queue must not be divided or added. Current figures: https://dchub.cloud/api/v1/interconnection-queue/snapshot

ERCOT's interconnection queue now holds 427 GW of requested load—39% of all queued capacity across US ISOs—a figure that has grown steadily as Texas continues to attract data center investment despite constrained grid throughput.

## What It Means for Site Selection

The 427 GW figure is not a measure of available power; it is a measure of **requested** interconnection. Queue depth of this magnitude signals multi-year wait times from application to energization, even for projects with land, permits, and capital ready. For hyperscalers and colocation operators evaluating ERCOT footprints, the implication is clear: price the delay into the site decision. A campus planned for 2027 energization may slip to 2029 or beyond, compressing ROI and extending capex exposure.

## The Second-Order Read

ERCOT's queue concentration creates a wedge opportunity for adjacent ISOs. SPP (Kansas, Oklahoma) and SERC (Louisiana, Arkansas) now compete on **time-to-power** rather than just cost or fiber density. Rural SPP markets, with DC Hub excess-power scores above 67, offer energization timelines measured in quarters, not years. That speed premium is starting to override ERCOT's headline power cost advantage, particularly for first-capacity AI workloads where every quarter of delay erodes model competitiveness.

Source: ERCOT Generation Interconnection Status Report (https://www.ercot.com/misdownload/servlets/mirDownload?doclookupId=1233678977). Queue data cross-referenced with DC Hub Data Center Power Index (https://dchub.cloud/dcpi), updated daily.

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