LG Energy Solution Vertech secured a multi-year contract to supply battery storage systems to Excelsior Energy Capital, expanding its foothold in the U.S. energy storage market.
The South Korean battery maker will deliver 7.5 gigawatt-hours of lithium-ion storage projects starting April 2026, as renewable energy investors seek to meet domestic content requirements under new U.S. regulations. The deal follows LG’s recent 8 GWh agreement with Terra-Gen Inc., highlighting growing demand for grid-scale storage solutions.
Excelsior, which focuses on mid-market wind and solar investments in North America, selected LG for its integrated approach combining hardware with software controls and lifecycle services, according to Anne Marie Denman, the company’s co-founder.
The systems will use LG’s latest containerized batteries with lithium iron phosphate chemistry, designed to optimize efficiency and safety. The AEROS software suite will manage controls and analytics.
While Hyung Kim, head of ESS battery division at LG Energy Solution, emphasized the company’s commitment to long-term partnerships, the agreement comes as battery makers face increasing pressure to localize production amid tightening U.S. content rules and growing competition in the energy storage sector.
Financial terms of the deal weren’t disclosed.
