Korean Battery Capacity Shifts Toward U.S. Energy Storage as SK On Signs 9 GWh LFP Deal

Website Summary

South Korean battery manufacturer SK On has signed a long-term agreement with U.S.-based NeoVolta Power to supply 9 GWh of lithium iron phosphate (LFP) pouch cells over five years from 2027, with production in Georgia. The companies also plan to expand their cooperation to a potential 18 GWh. The deal reflects a broader market shift: as electric-vehicle battery demand softens and U.S. energy-storage demand grows, Asian battery manufacturers are redirecting existing manufacturing capacity toward grid storage, while local production and policy compliance become increasingly important competitive requirements.

Article

The U.S. energy-storage market is becoming a new growth channel for large battery manufacturers. SK On’s latest agreement is notable not simply as a project order, but as a multi-year supply arrangement capable of supporting sustained utilization of U.S. manufacturing capacity.

A 9 GWh order creates a long-term demand anchor

Under the agreement, SK On will supply NeoVolta Power with a total of 9 GWh of LFP pouch cells over five years beginning in 2027. The cells will be produced at SK On’s factory in Georgia. The companies did not disclose the contract value, although industry estimates place it at about 1.5 trillion won, or roughly $1.09 billion.

For the storage supply chain, both the size and duration of the agreement matter. A five-year contract can provide a battery manufacturer with more predictable factory utilization while allowing a system integrator to secure a critical component well ahead of project deployment. In a rapidly expanding U.S. storage market, reliable long-term supply is becoming increasingly important alongside battery price and performance.

Slower EV demand is pushing battery capacity toward storage

SK On has historically focused on the electric-vehicle battery market, but it is expanding its energy-storage business as EV demand growth slows. In 2025, the company signed an ESS supply agreement with U.S.-based Flatiron Energy Development. For 2026, SK On has targeted more than 20 GWh of global ESS orders and has said it is in discussions with several U.S. customers for additional contracts totaling more than 10 GWh.

The trend extends beyond SK On. Other major South Korean battery manufacturers are also repurposing parts of their EV battery production base for energy-storage applications. The industrial logic is straightforward: EV and stationary-storage batteries share significant manufacturing capabilities, while data centers, renewable-energy integration, grid balancing and corporate power reliability are creating more persistent demand for storage.

The partnership could expand to 18 GWh

SK On and NeoVolta Power also plan to sign a separate agreement later this year covering an additional 9 GWh of LFP cells. If completed, total planned cooperation between the two companies would reach 18 GWh.

That would move the relationship beyond a one-off cell purchase toward a deeper manufacturing and system partnership. NeoVolta Power will assemble the cells into battery packs, while SK On will provide the core cells from its U.S. production base. The structure illustrates how the U.S. storage supply chain is increasingly developing around local manufacturing combined with local system integration.

Local manufacturing and compliance are becoming market-entry requirements

Competition in the U.S. storage market is no longer determined only by battery cost. Manufacturing location, supply-chain origin, eligibility for policy incentives, delivery security and project financeability can all influence procurement decisions.

NeoVolta previously said that its Georgia manufacturing facility had received a legal opinion confirming that its ownership and operating structure was designed to meet applicable Foreign Entity of Concern (FEOC) eligibility requirements. For storage suppliers, that kind of compliance planning shows how policy rules are becoming embedded directly into manufacturing and procurement structures.

IKOS Observation

This agreement highlights a structural shift worth monitoring across the global battery industry: electric vehicles are no longer the only major outlet for large-scale battery manufacturing capacity. Grid storage is emerging as a second market capable of absorbing substantial volumes.

For suppliers and project partners seeking to enter the North American storage market, competitiveness will increasingly depend on a complete capability set rather than unit price alone. Cell technology remains important, but local manufacturing, FEOC-related compliance, system integration, long-term supply, after-sales support and alignment with project financing requirements are becoming equally significant in determining whether orders can actually be delivered.

For Asian supply-chain companies, this suggests a strategic move from simply exporting products to the United States toward building supply structures that can operate within U.S. policy, financing and procurement frameworks. Companies that establish local production, compliant partnerships and durable delivery capacity earlier are likely to be better positioned for large, long-term storage projects.

Korean Battery Capacity Shifts Toward U.S. Energy Storage as SK On Signs 9 GWh LFP Deal

Website Summary

Article

IKOS Observation

Tags