Research & Data

Oklahoma Interconnection Queue: 306 Projects

Jun 13, 2026

Oklahoma's interconnection queue held 306 projects on June 11, 2026, according to our sealed grid-queue snapshot. That is the headline. What makes it distinctive is what those projects are: Wind accounts for 40.2% of all project filings, making Oklahoma one of the few states in the covered dataset where Wind — not Solar — holds the plurality position.

Before reading anything else, hold this caveat: a queue position is a request to connect, NOT a built, approved, or financed project. A substantial share of queued projects in every state and ISO withdraws before construction ever begins. Oklahoma's own SPP-reported withdrawn count in this snapshot is 0 — not because none ever withdrew, but because SPP's published feed drops withdrawn entries entirely. That zero is a feed artifact, not a claim that every filed project survived.

This report covers generation and storage projects sitting in the interconnection queues of the U.S. grid operators (ISOs and RTOs) that publish a machine-readable queue, as captured by US Tech Automations' sealed daily grid snapshots. This is a census of the published queues, not of every project on every grid in the country.

What the Oklahoma Queue Looks Like

Wind dominance is the defining characteristic of Oklahoma's queue — 123 Wind projects carrying 21,726 MW of requested capacity, according to our sealed interconnection-queue snapshot. Nationally, Solar leads with 39.0% of all projects. Oklahoma inverts that: Solar files third here, behind both Wind and Battery Storage by project count.

306 projects sit in Oklahoma's interconnection queue.

Oklahoma's queue holds 57.7 GW of requested capacity.

Wind accounts for 40.2% of Oklahoma's filed projects.

The median project in the queue is 151 MW — nearly identical to the national median of 150 MW. That alignment across the median is notable: it suggests Oklahoma's project size distribution is not skewed toward either extreme by any single dominant developer or technology type.

Oklahoma's 0.0% withdrawn figure in this snapshot reflects SPP's feed behavior, not a claim that every queued project survives. SPP drops withdrawn projects from its published listings; the true attrition rate is unknown from this source alone.

Key Findings

  • 306 projects total 57.7 GW in Oklahoma's queue, according to our sealed interconnection-queue snapshot

  • 123 Wind projects carry 21,726 MW, making Wind the plurality technology at 40.2%

  • 74 Battery Storage projects hold 10,167 MW in a state more commonly associated with wind

  • 49 Solar projects carry 8,600 MW, running third behind both Wind and Battery Storage

  • The median project size is 151 MW, in line with the national median of 150 MW

  • 100 projects show operational status; 206 remain still-in-queue

Oklahoma's Queue at a Glance

The table below summarizes Oklahoma's sealed snapshot as of June 11, 2026. These figures come directly from our grid-queue clock and are not estimated or modeled.

MetricValue
Total projects306
Total requested capacity57,672 MW
Capacity (GW)57.7 GW
Median project size151 MW
Still-in-queue206 (67.3%)
Operational100
Withdrawn (feed-reported)0 (0.0% — SPP feed artifact)
Dominant ISOSPP
Snapshot dateJune 11, 2026

The 0.0% withdrawn figure warrants its own note: SPP does not include withdrawn projects in its published queue feed. This is a known feed characteristic, not a signal about the Oklahoma market's project attrition rate. Readers should not interpret it as evidence that 306 of 306 filed projects are viable.

The Fuel Mix in Oklahoma's Queue

Oklahoma's queue splits across Wind, Battery Storage, Solar, Natural Gas, Hybrid, and smaller categories. Wind carries far more capacity per project than Solar does here — a consequence of the large utility-scale wind farms that have historically characterized the southern plains region.

FuelProjectsCapacity (MW)
Wind12321,726 MW
Battery Storage7410,167 MW
Solar498,600 MW
Natural Gas219,058 MW
Hybrid245,029 MW
Other132,627 MW
Hydro116 MW
Coal1450 MW

Battery Storage's 10,167 MW — from 74 projects — is the number that most energy observers might find unexpected. Storage developers are active in Oklahoma despite the state's reputation as primarily a wind market. A battery-dense queue alongside a wind-heavy queue makes sense operationally: wind generation is variable, and co-located or near-sited storage improves dispatch flexibility and grid stability.

Natural Gas holds 21 projects totaling 9,058 MW. That is a substantial per-project average, reflecting the large combined-cycle plant sizes that natural gas developers typically propose. Whether any of these will clear the queue and enter service is beyond what the snapshot can tell us — again, a queue entry is a request, not a commitment.

How Oklahoma Compares Across Covered States

The table below places Oklahoma alongside the other states and ISOs covered in our June 11, 2026 snapshot. Oklahoma's position is mid-tier by project count but with a fuel profile that is genuinely distinct.

State / ISOProjectsCapacity (GW)Dominant Fuel
California (CAISO)2,076416.8 GWSolar
Texas (ERCOT)2,029453.7 GWBattery Storage
Michigan (MISO)50244.7 GWSolar
Illinois (MISO)48250.6 GWSolar
Indiana (MISO)45639.1 GWSolar
Arkansas (MISO)41332.9 GWSolar
Maine (ISO-NE)40937.0 GWSolar
Louisiana (MISO)38223.7 GWSolar
Connecticut (ISO-NE)32338.9 GWOther
Oklahoma (SPP)30657.7 GWWind
Minnesota (MISO)27722.2 GWSolar
Wisconsin (MISO)23327.1 GWSolar
Iowa (MISO)22820.3 GWWind
Kansas (SPP)17136.9 GWWind

Oklahoma's 57.7 GW against 306 projects gives it a higher average capacity per project than many states with far more filings. California's 2,076 projects represent 416.8 GW; Michigan's 502 projects represent 44.7 GW. Oklahoma's per-project weight reflects the size of Wind assets in this geography.

The SPP footprint produces two Wind-dominant states in the top portion of this table: Oklahoma and Kansas. MISO states overwhelmingly lead on Solar. That fuel-by-ISO pattern reflects how developers respond to the existing grid mix, interconnection cost signals, and renewable-resource geography in each region. The SPP interconnection queue report covers the full footprint that Oklahoma sits within.

Oklahoma and Iowa are the only two Wind-majority states in this snapshot's visible state coverage — a meaningful geographic signal about where large-scale wind development is concentrated in the queue.

Methodology and Scope

Source: Public ISO/RTO interconnection-queue listings, via our grid-queue clock (sealed daily, content-hashed).

Honesty statement: All figures are computed directly from US Tech Automations' sealed daily grid-queue snapshots; nothing is estimated, modeled, or extrapolated. Fuel and status labels are grouped from each ISO's own categories, and the grouping rules appear in the display set.

Fuel bucketing: Vendor fuel and technology labels differ by ISO and are grouped into Solar, Battery Storage, Wind, Natural Gas, Hybrid and Other by keyword.

Status bucketing: Each ISO publishes its own status taxonomy; statuses are grouped into withdrawn, operational (explicitly in-service or commercial operation), still-in-queue, and unknown for feeds that publish no status. Some ISOs drop withdrawn projects from their feed entirely.

The grid disclaimer: A queue position is a request to connect, not a built, approved, or financed project. Interconnection queues are aspirational. A large share of projects withdraw before construction. This report does not imply that queued capacity will be built, is coming online, or represents a forecast.

How the research desk seals this data:

  1. Collect. Each supported ISO/RTO queue is fetched daily from its published machine-readable feed.

  2. Normalize. Project records are standardized across ISOs: fuel labels bucketed by keyword, status labels bucketed into withdrawn/operational/still-in-queue/unknown.

  3. Seal. The day's normalized dataset is content-hashed (SHA). The hash is recorded; the data cannot be silently altered after the fact.

  4. Aggregate. State- and ISO-level statistics are computed from the sealed records and published as display-set values.

This snapshot covers 5 ISOs and 28 states as of June 11, 2026.

Frequently Asked Questions

Q: Does 0.0% withdrawn mean no Oklahoma project has ever left the queue?

A: No. SPP drops withdrawn projects from its published feed entirely. The 0.0% figure reflects a feed artifact — SPP simply does not include withdrawn records. True attrition is unknown from this source alone. Do not interpret this as evidence that every filed project is viable.

Q: What does the Oklahoma queue actually tell a developer or analyst?

A: It tells you which projects have formally requested a grid connection, their fuel type, requested capacity, and reported status. It does not tell you whether a project will clear its feasibility study, obtain financing, or reach commercial operation. Queue data is a leading indicator of developer interest, not a delivery forecast.

Q: Why does Wind lead Oklahoma's queue when Solar leads the national queue?

A: The national queue is dominated by California and MISO-territory Solar filings. Oklahoma sits in the SPP footprint, where wind resources are exceptional and developers have historically pursued wind. The fuel mix in any state's queue reflects local resource quality, existing transmission, and developer economics in that ISO — not a national trend applied uniformly.

Q: What is the largest project in SPP's queue?

A: The largest project in SPP's feed at this snapshot date is not identified by name in Oklahoma's display set. SPP as a whole covers 963 projects and 188.9 GW across multiple states including Oklahoma, Kansas, and Nebraska. Oklahoma's own largest project registered 1,400 MW in this snapshot.

Q: How does the 67.3% still-in-queue figure compare to the national rate?

A: Nationally across all covered ISOs, 44.3% of projects show still-in-queue status. Oklahoma's 67.3% is notably higher — driven in part by SPP's feed not reporting withdrawn projects, which would otherwise lower the in-queue share. The figures are not directly comparable across ISOs with different reporting practices.

Using Grid Queue Data in Your Workflow

Three types of readers get concrete value from Oklahoma's queue data: project developers, equipment suppliers, and energy buyers negotiating power purchase agreements. For national-level context across every covered ISO, see the USTA Interconnection Queue Index.

Project developers mapping the next Oklahoma filing need to know where the queue is dense. A Wind-heavy queue signals transmission congestion risk around wind-rich corridors. A developer considering a Solar or Storage filing can assess relative crowding by technology. Oklahoma's Wind-heavy profile makes it a natural pairing with the wind interconnection queue technology report.

Equipment suppliers and EPC contractors use queue counts to gauge regional pipeline. 74 Battery Storage projects in Oklahoma signals demand for battery systems and balance-of-plant services in the SPP region, even knowing that many will not ultimately build.

Energy buyers and corporate offtakers seeking wind PPAs in Oklahoma want to know whether viable wind projects are in the pipeline. The queue is the first place those projects appear. Watching which projects move from still-in-queue to operational status over successive snapshots provides a signal unavailable from any other public source.

US Tech Automations automates the work of monitoring queue feeds, detecting status changes, routing alerts to the right team members, and drafting outreach when a project transitions. Teams that track this manually — pulling queue spreadsheets, comparing rows — can route that work to an automated pipeline instead.

Learn how the platform builds automated queue-monitoring workflows at /platform/agentic-workflows.

Source: US Tech Automations Research — computed from the sealed daily interconnection-queue snapshot, June 11, 2026.

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Cite this report

US Tech Automations Research, 2026-06 edition. “Oklahoma Interconnection Queue: 306 Projects.” https://ustechautomations.com/resources/blog/oklahoma-interconnection-queue

Sealed snapshot sha256: 4938600b6a99772e

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