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Tesla, Samsung SDI In Talks on $2.1 Billion U.S. Energy Storage Battery Supply

Reports point to LFP cells for Tesla’s Megapack and Powerwall sourced from Samsung SDI’s Indiana joint venture.

Overview

  • Samsung SDI said discussions with Tesla are underway and that nothing has been finalized, while Tesla has not commented.
  • South Korean media describe a three‑year agreement worth about 3 trillion won for roughly 10 GWh of ESS‑grade LFP cells per year.
  • Production would likely come from Samsung SDI’s Stellantis joint venture in Indiana as EV battery lines are converted to ESS and U.S. capacity targets reach about 30 GWh.
  • The prospective deal aligns with Tesla’s effort to diversify away from Chinese suppliers under U.S. tariffs and FEOC‑related rules to protect incentives.
  • Samsung SDI shares rose as much as about 8% in early trading after reports of the talks.