Counted from the archive on 2026-08-08: 10 weekly snapshots held, 2026-06-11 to 2026-08-06, and 7 status changes plus 8 in-service-date moves in the week of 2026-07-30 to 2026-08-06 — across the 4 of 6 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. Four queues are collected today — CAISO, SPP, ISO-NE and NYISO. Two are deliberately not: 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 2026-07-30 and 2026-08-06, across 4 ISOs and 6692 projects, we recorded 7 status changes, 8 in-service-date changes, 5 new entrants and 0 departures.
| ISO | Projects | Status changed | In-service date changed | Entered | Left |
|---|---|---|---|---|---|
| CAISO | 2278 | 0 | 0 | 0 | 0 |
| ERCOT | not compared — withheld from collection (robots.txt) | ||||
| ISONE | 1747 | 0 | 1 | 0 | 0 |
| MISO | not compared — withheld from collection (robots.txt) | ||||
| NYISO | 1637 | 0 | 0 | 0 | 0 |
| SPP | 1030 | 7 | 7 | 5 | 0 |
Not collected in the newer snapshot, so excluded from these counts: ERCOT, MISO. The archive up to the last date we read it stays readable.
Examples from that week:
Archive held: 10 weekly snapshots, 2026-06-11 to 2026-08-06. Two consecutive weekly 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 week.
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