References 495% CONFIDENCEOverall confidence: 95%How well the pin's source and references back up its dates.Weighted average of how firmly 4 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 at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]95%Plant inventory or original project recordeia.gov· Posted Oct 12, 2026· Starts Oct 7, 2026 ✓· 25% of score
Documented physical milestone or dated progress/reporting marker. Period-end dates represent only the reported month/quarter; they do not invent an exact operation date. Source estimates are labelled and not treated as confirmed future opening dates.
- [2]95%Mammoth Solar — original 1.3 GW complex — project media source
Mammoth North early construction aerial from Doral’s project gallery. This shows the older North phase, not the 900 MW South/Central phases now reaching operation.[1]
- [3]95%Published project evidenceiedc.in.gov· Added Oct 12, 2026· 25% of score
Indiana Economic Development’s November 3, 2022 release publishes US$1.5 billion original full-complex investment for 1.3 GW Mammoth Solar. This dated estimate includes the earlier 400 MW North phase, as well as the 900 MW later phases; it is not a stand-alone budget for the new 900 MW and is not a refreshed 2026 outturn. Mammoth Solar — original 1.3 GW complex: 1300 MW generating project rating. Full original complex 1,300 MW; 900 MWac final phases commissioning in 2026[1]
- [4]95%Published project evidenceprnewswire.com· Added Oct 12, 2026· 25% of score
Doral’s October 7, 2026 announcement confirms 900 MWac in the final South, Central I and Central II phases constructed over 18 months and nearing commercial operation. Full-complex rated output is 1.3 GW; 900 MW is the 2026 commissioning addition. The announced future expansion to 2,245 MW is excluded.[1]
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