Long-Duration & Alternative Storage Systems

This is the fastest-growing manufacturing segment on the site. Output roughly tripled in five years as EV and grid-storage demand arrived together. Three cautions. No firm count exists: battery manufacture was reclassified after the business-count series was last drawn, so the population behind this revenue is genuinely unknown. The growth rate spans that same reclassification. And most announced domestic capacity postdates this data, so read the figure as a floor rather than a picture of the market.