Counted from the archive on 2026-08-19: 20 weekly snapshots held, 2026-06-11 to 2026-08-18, and 7 status changes plus 10 in-service-date moves in the 7-day window from 2026-08-11 to 2026-08-18 — across the 4 of 4 queues we still collect.
ISO interconnection queues are republished in place — last week's version is simply gone. We have kept a weekly archive, so we can tell you what changed: which projects moved status, shifted commercial-operation date, changed capacity, or left the queue. The current reviewed sample compares CAISO, ISO-NE and NYISO. SPP's latest collection failed validation, so its prior archive remains readable through 2026-08-06 but is not claimed as current coverage. Two others are deliberately not collected: ERCOT's robots.txt disallows the paths its queue is published under (stopped 2026-08-05), and MISO blocks a collector that identifies itself — the only way to fetch it was to impersonate a browser, which we will not do to resell the data (stopped 2026-08-07). Both archives stay readable through those dates; neither takes a new snapshot.
Every ISO publishes its current interconnection queue for free, and every ISO overwrites it. A dashboard reads the file that is on the site today; a sentinel keeps the file that was on the site last week, which is the only way the question ‘what changed?’ still has an answer. That is the whole product: we hold the weekly interconnection-queue snapshots, and the sentinel tells you which of the projects you named moved.
Where we stopped collecting, the sentinel says so by name rather than reporting a quiet week.
Comparing the queues published 2026-08-11 and 2026-08-18, across 4 ISOs and 6691 projects, we recorded 7 status changes, 10 in-service-date changes, 10 new entrants and 10 departures.
| ISO | Projects | Status changed | In-service date changed | Entered | Left |
|---|---|---|---|---|---|
| CAISO | 2278 | 2 | 0 | 0 | 0 |
| ISONE | 1747 | 0 | 3 | 0 | 0 |
| NYISO | 1638 | 2 | 4 | 2 | 1 |
| SPP | 1028 | 3 | 3 | 8 | 9 |
Rows from that interval:
Blank source cells stay blank. They are not inferred or filled from another queue.
| Field | Present | Rows | Coverage |
|---|---|---|---|
| capacity mw | 6258 | 6691 | 93.53% |
| county | 6592 | 6691 | 98.52% |
| fuel | 5793 | 6691 | 86.58% |
| project name | 5865 | 6691 | 87.66% |
| proposed cod | 2840 | 6691 | 42.45% |
| queue date | 6672 | 6691 | 99.72% |
| state | 6652 | 6691 | 99.42% |
| status | 4944 | 6691 | 73.89% |
| technology | 6444 | 6691 | 96.31% |
Coverage is non-blank values divided by current publishable rows. A numeric zero is present; NULL and blank text are missing. Every field below 100% is listed in sparse_fields rather than filled.
Before publication, 13382 source rows in this pair were re-hashed with zero mismatches. Input-set seal: 141c83a77d54843ff9176e44a9cd2c1075a1f76085340f0382d299d056783c05.
Archive held: 20 weekly snapshots, 2026-06-11 to 2026-08-18. Two consecutive sealed snapshots of each ISO's own published queue, compared row by row on the ISO's project identifier. An ISO missing from either side is reported as not compared, never as a quiet interval. Every row in the compared pair is re-hashed before this sample is emitted.
View the full machine-readable specimen and evidence rows
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