Astra Enterprise Park, Astra Parkway, De Soto, Johnson County, Kansas 66019, United StatesPanasonic Energy
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 6 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
Lawrence Times (3 Feb 2026) reports the plant opened in July (2025); month precision only, exact day not confirmed in fetched pages.[1]Panasonic Energy's roughly $4 billion lithium-ion cell plant in De Soto, Kansas opened in July 2025 and is expected to draw 110-170 MW (Panasonic's construction executive, 2024) to 200-250 MW at full production (Evergy testimony, 2023) from a new 420 MW Evergy substation; in February 2026 it was nearing 50% of capacity and has since announced a more than $2 billion data-center battery line.
$4B
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