President Trump signed Executive Order 14420 on August 26, 2026, declaring a national emergency regarding foreign-made equipment in the bulk-power system. The directive empowers the Department of Energy to restrict or set conditions on electrical hardware from covered foreign entities, primarily targeting China.
The order covers battery energy storage systems, grid-connected inverters, and transformers. Any transactions involving these components from restricted entities initiated after the signing date fall under the new rules. The Department of Energy must publish implementation guidance by December 24, 2026.
China currently controls approximately 80% of global lithium-ion battery supply-chain capacity. Additionally, Chinese manufacturers accounted for about 40% of US inverter volumes in 2025. Prior to this order, tariffs on Chinese batteries had already increased from 7.5% to 25% in January 2026.
Analysts from BloombergNEF warn that the order could impair the US market for Chinese components and hinder renewable energy goals. Developers now face uncertainty regarding project compliance, which may impact financing and procurement decisions until the final regulatory framework is clarified.
South Korean battery manufacturers with US production facilities are expected to benefit from the shift in demand. The ultimate impact on the project pipeline will depend on whether the upcoming rules include carve-outs for existing contracts or components from allied nations.
