Question · Q4 2025
Jeff Osborne of TD Cowen inquired about the bipolar line fabrication yields in Q4 2025, contrasting with the previously reported 98% yield, and asked for an update on field performance, including safety, reliability, commissioning schedules, and installation timing for units shipped in the past 6-9 months. He also questioned if higher pricing is captured for longer duration use cases (6-8 hours and beyond) compared to sub 4-hour durations.
Answer
COO John Mahaz stated that bipolar yields were lower in Q4 due to automation issues but were significantly reduced by January, targeting 97%. CEO Joe Mastrangelo noted continued good cycles and learning from field operations, with commissioning cadence varying by customer. He clarified that Eos sells on a Levelized Cost of Storage basis, with a higher ASP in the backlog for longer durations, reflecting a higher CapEx but lower operating cost value proposition.
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