LG Energy Solution (LGES) is expanding its energy storage system (ESS) production capacity in North America, as it moves to strengthen its supply chain and capture a larger share of the region’s rapidly growing market. Ultium Cells, a joint venture between LGES and General Motors, began mass production of lithium iron phosphate (LFP) battery cells for ESS at its plant in Spring Hill, Tennessee on Tuesday (local time). Commercial production at the Tennessee facility comes about four months after Ultium Cells announced plans to repurpose part of its electric vehicle (EV) battery production capacity into ESS manufacturing. The joint venture invested approximately $70 million in the conversion, enabling the plant to begin large-scale production of LFP cells in the second quarter. The batteries produced at the Tennessee plant will be supplied through LGES' U.S.-based ESS system integration subsidiary Vertech, serving utility-scale, commercial, industrial and residential energy storage projects across the country. The move reflects the company’s strategic pivot toward the fast-growing ESS s