Research & Data

37.0 GW of Power Is Queued in Maine

Jun 13, 2026

Maine's interconnection queue carries 37.0 GW of requested capacity across 409 projects in our sealed snapshot of June 11, 2026. Hold that against the national total in the same dataset — 1600.7 GW across all covered queues — and Maine is a sliver of the whole, a small but instructive corner of the national grid-connection pipeline.

The caveat rides with the number: a queue position is a request to connect to the grid, not a built, approved, or financed plant. These lists are aspirational, and a large share of the requests on them never reach steel in the ground. This is a cross-sectional census of one snapshot day; it counts what was published, not what will be built.

Reading 37.0 GW in Context

The analyst's first move is to size the number. Maine's 37.0 GW against the national 1600.7 GW puts the state at a small fraction of total requested capacity — this is not a top-tier queue by volume, and reading it as such would overstate it. The 409 project count tells the same story: a focused regional slice, not a flood. What makes Maine interesting is less its size than its status reporting, which demands the most careful handling in this batch.

  • Maine's queue holds 409 projects at 37.0 GW, according to the sealed snapshot.

  • The national queue across all covered operators is 1600.7 GW over 10,618 projects — Maine is a small share of that.

  • The snapshot lists 0.0% of Maine projects as withdrawn, but read the next line before concluding anything.

  • 409 projects — 100.0% — carry an unknown status, because the operating feed publishes no status field.

  • The largest single request is AC Line from NMISA to Chester and Pittsfield, ME at 1,200 MW, per the sealed snapshot.

The 0.0% Withdrawn Figure Is a Feed Artifact

This is the one place Maine's data will mislead a casual reader, so it gets its own section. The snapshot shows 0.0% of Maine's projects withdrawn and 100.0% with an unknown status. That 0.0% does not mean no projects ever left this queue. It is a feed artifact: ISO-NE, the operator covering Maine, publishes its queue without a machine-readable status field, so every project lands in the "unknown" bucket and the withdrawn count is zero by absence of data, not by absence of withdrawals.

Maine shows 0.0% withdrawn and 100.0% unknown — not because nobody left the queue, but because the operator's feed carries no status field for us to read. Treat both numbers as a reporting limit, not a clean queue.

The honest analytical posture is to refuse to imply these 409 projects are all active. We simply do not know their disposition from the published feed. Where other states in this snapshot expose aggressive withdrawal rates — many with a clear majority of requests already gone — Maine exposes nothing, and that silence is itself the finding. Anyone reading 37.0 GW as live, advancing capacity is reading past the data.

Maine at a Glance

The table pulls the state's headline figures directly from the sealed snapshot. Capacity appears in both megawatts and gigawatts as published; status reflects the feed's limits.

MetricValue
Projects in queue409
Requested capacity (MW)36,995 MW
Requested capacity (GW)37.0 GW
Median project size27 MW
Withdrawn0 (0.0%) — feed artifact
Status unknown409 (100.0%)
Largest projectAC Line from NMISA to Chester and Pittsfield, ME (1,200 MW)
Top fuelSolar (35.5%)

The 27 MW median is the smallest among this batch's states, and it tells a real story: Maine's queue is built from many smaller projects rather than a handful of giants. Against a 1,200 MW top request — itself a transmission line rather than a generator — the distribution is broad and shallow. One structural note: a state's queue can span more than one operator, but Maine's requests sit with ISO-NE, the dominant operator across its footprint.

The Fuel Mix Behind the Queue

Maine's mix is more balanced than the solar-saturated states elsewhere in this batch. The breakdown below comes straight from the snapshot's keyword-grouped categories.

Fuel bucketProjectsCapacity
Solar1455,536 MW
Wind12612,619 MW
Other10617,579 MW
Battery Storage22974 MW
Natural Gas10287 MW

Solar leads on count at 145 projects, but holds only 35.5% of the queue — a far lower share than the solar-saturated states elsewhere in this snapshot. Wind tells the capacity story: 126 projects but 12,619 MW, the high capacity-per-project profile typical of large wind farms, and a reminder that Maine's renewable identity leans wind as much as solar.

The "Other" bucket alone carries 17,579 MW across 106 Maine filings — more requested capacity than solar and wind combined, a queue shaped by transmission as much as generation.

The "Other" bucket is unusually large here at 106 projects and 17,579 MW, reflecting transmission and interconnection-infrastructure filings that ISO-NE's feed groups outside the standard generation labels. Battery storage is still nascent in Maine at 22 projects and 974 MW, and natural gas is a rounding error at 10 projects and 287 MW.

The composition reads differently from the solar-led Midwest queues: in Maine, wind capacity and infrastructure filings dominate the megawatts, while solar dominates the headcount. For a reader sizing where Maine's connection activity concentrates, the answer is split — many small solar projects by count, a smaller set of large wind and transmission items by capacity.

How Maine Compares

Set against its parent operator and the national total, Maine is a modest slice. The table reads qualitatively.

SliceProjectsCapacityTop fuel
Maine40937.0 GWSolar (35.5%)
ISO-NE (parent operator)1,752193.1 GWOther (31.4%)
All covered queues10,6181600.7 GWSolar (39.0%)

Maine's 37.0 GW is a small fraction of ISO-NE's 193.1 GW and a tiny fraction of the national 1600.7 GW. For the operator-level view that contains Maine, see the ISO-NE interconnection queue report; for the technology lens, the wind interconnection queue report.

A caution on cross-state status reads: withdrawal percentages are not comparable across operators, because some feeds — ISO-NE's among them — publish no status at all. Maine's 0.0% withdrawn is precisely that case: a feed artifact, not a clean queue.

Methodology and the Grid Disclaimer

This report draws on public ISO/RTO interconnection-queue listings, via the grid-queue clock (sealed daily, content-hashed). The scope: 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.

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. Vendor fuel and technology labels differ by ISO and are grouped into Solar, Battery Storage, Wind, Natural Gas, Hybrid and Other by keyword. Each ISO publishes its own status taxonomy; statuses are grouped into withdrawn, operational, still-in-queue, and unknown for feeds that publish no status. Some ISOs drop withdrawn projects from their feed entirely.

The grid disclaimer, restated: a queue position is a request to connect, not a built, approved, or financed project. Nothing here is a forecast of capacity that will come online. Maine's 100.0% unknown status is its own form of evidence — when a feed cannot even tell you what is still active, reading queued capacity as future supply is unsupported.

How we build the snapshot:

  1. Collect. We pull each covered ISO's published interconnection-queue feed on its own schedule.

  2. Normalize. Differing vendor fuel and status labels are mapped onto common buckets.

  3. Seal. The day's normalized records are content-hashed and stored append-only, so the snapshot is reproducible.

  4. Aggregate. We compute counts, capacity totals, medians, and status splits across the sealed records for the snapshot date.

Frequently Asked Questions

Q: How much capacity is queued in Maine?
A: 37.0 GW across 409 projects, per the sealed snapshot of June 11, 2026 — a small slice of the national 1600.7 GW across all covered queues.

Q: Does 0.0% withdrawn mean no Maine projects ever dropped out?
A: No. It is a feed artifact. ISO-NE publishes no status field, so every Maine project is logged as unknown — 100.0% of them — and the withdrawn count is zero by absence of data, not by absence of withdrawals.

Q: Are all 409 Maine projects still active?
A: We cannot say from the published feed. With 100.0% of projects carrying an unknown status, the data does not support calling them active or inactive. That uncertainty is the finding.

Q: Why is the median project so small at 27 MW?
A: Maine's queue is built from many smaller projects rather than a few giants. The 27 MW median, against a 1,200 MW top request, shows a broad, shallow distribution.

Q: What is the largest item in Maine's queue?
A: AC Line from NMISA to Chester and Pittsfield, ME at 1,200 MW — a transmission line rather than a generator, which itself shapes how the "Other" fuel bucket reads in Maine.

Put Grid Data to Work

A sealed, daily queue snapshot is an early-demand signal, and each audience reads Maine's 409 projects differently — with the status caveat front of mind.

Project developers siting the next request can read the balanced solar-and-wind mix and 27 MW median to gauge where Maine's queue is crowded. EPC contractors and equipment suppliers can treat the 126 wind and 145 solar requests as a forward order-book signal, while discounting status because the feed publishes none. Utilities and policy researchers can flag the 100.0% unknown status as a data-quality gap worth closing before any of the 37.0 GW is read as advancing.

US Tech Automations builds the automation layer on top of that signal: watching the published feeds for changes, flagging status gaps like Maine's, and drafting the first-pass outreach when a relevant project appears or moves. See the operator view in the ISO-NE interconnection queue report and the national picture in the US interconnection queue index. You can explore the underlying sealed records at permits.ustechautomations.com, and see how we automate signal monitoring on the agentic workflows platform.

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. “37.0 GW of Power Is Queued in Maine.” https://ustechautomations.com/resources/blog/maine-interconnection-queue

Sealed snapshot sha256: 4938600b6a99772e

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About the Author

Garrett Mullins
Garrett Mullins
Workflow Specialist

Helping businesses leverage automation for operational efficiency.