The company said its Michigan-based subsidiary, Samsung SDI America, has signed a deal worth about 1.5 trillion won ($1 billion) to supply ESS batteries to a major U.S. energy company. Deliveries will be made in phases through 2029.
The batteries will be produced at StarPlus Energy, Samsung SDI’s joint venture with automaker Stellantis, located in the U.S. state of Indiana.
Under the agreement, Samsung SDI will initially supply nickel–cobalt–aluminum (NCA) batteries before expanding deliveries to lithium iron phosphate (LFP) batteries, highlighting the company’s ability to compete across both premium ternary batteries and the fast-growing LFP segment.
The deal marks another step in Samsung SDI’s effort to strengthen its presence in the U.S. ESS market, where demand is surging as renewable energy deployment expands and electricity consumption rises sharply with the growth of artificial intelligence and data centers.
The contract follows another major agreement signed late last year, when Samsung SDI secured more than 2 trillion won worth of LFP ESS battery supply with a U.S. energy infrastructure developer.
Industry observers say the string of large contracts signals growing recognition of Samsung SDI’s prismatic battery technology, branded PrismStack, which is widely regarded for its durability, fire safety and reliability compared with pouch-type batteries.
Samsung SDI is currently the only non-Chinese supplier of prismatic ESS batteries in North America, giving it a strategic advantage as U.S. utilities increasingly seek diversified battery supply chains.
The company said it is also in discussions with multiple global customers for additional battery supply contracts, with several deals expected to materialize in the near future.
“The latest series of orders confirms Samsung SDI’s technological competitiveness and credibility in the global ESS market,” a company official said. “We will continue to meet the diverse performance needs of global customers.”
Samsung SDI and other Korean battery makers have been accelerating their pivot toward energy storage systems (ESS) by repurposing EV operations in North America for grid-scale storage.
The shift comes as the EV market — once the industry’s main growth engine — has entered a period of slower expansion amid high borrowing costs, softer consumer demand and evolving subsidy policies in major markets such as the United States and Europe.
Samsung SDI swung to an operating loss in 2025, reflecting the prolonged slowdown in EV demand and changing policy conditions in Western markets.
The company reported an operating loss of 1.72 trillion won for the year, reversing an operating profit of 363.3 billion won in 2024, according to its earnings report released last month. Revenue fell 20 percent to 13.27 trillion won from 16.6 trillion won a year earlier.
Copyright ⓒ Aju Press All rights reserved.