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Samsung SDI Signs ₩1.5 Trillion U.S. ESS Battery Deal With Production in Indiana

Local manufacturing through the StarPlus Energy JV strengthens a non‑Chinese prismatic supply option for U.S. grid storage.

Overview

  • Samsung SDI America signed a multi‑year agreement with an undisclosed U.S. energy company to supply prismatic ESS batteries worth about US$1 billion.
  • Phased deliveries begin this year and continue through 2029.
  • Batteries will be built at StarPlus Energy’s Indiana plant, a Samsung SDI–Stellantis joint venture that shifted part of its capacity from EV cells to ESS lines last year.
  • The contract starts with NCA prismatic cells and later adds LFP, aligning with Samsung SDI’s push into the LFP segment.
  • The agreement adds to the company’s recent U.S. wins, including a 2025 ESS contract exceeding ₩2 trillion and ongoing negotiations with additional customers.