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.
The catalog points to a specimen, but its compiled artifact cannot be read. No current proof is asserted.
View the machine-readable offer and no-specimen status
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