ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins61% CONFIDENCEOverall confidence: 61%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidencein 16 days
EIA-860M, as tracked by Cleanview[2], lists Atlas VIII in two blocks, 210 MW from September 2026 and 172.4 MW from November 2026 (sum 382.4 MW); Mayer Brown's[1] financing notice says only "when completed". The later block date is used for the full project. A search summary of an Energy-Storage.News[3] item mentioned a Q2 2026 target, but that article could not be opened, so it is not relied on.TransGrid Energy (Hanwha) is building the 382.4 MW / 1,529.6 MWh Atlas VIII standalone battery in La Paz County, Arizona, financed with about 1.2 billion USD in January 2026; the project cost itself has not been published.
