The U.S. International Trade Commission has issued a final ruling in the patent dispute between Shoals Technologies Group and Voltage, determining that Voltage infringed Shoals' patents on trunk bus cable assemblies used in solar installations. The decision, signed by ITC Secretary Lisa R. Barton, found Voltage violated Section 337 of the Tariff Act of 1930.
The dispute centers on cable assemblies that connect solar panels in utility-scale and commercial systems. Such components are critical for efficient power collection, and the ruling could reshape supply chains for these specialized parts. The ITC's decision effectively bars Voltage from importing or selling the infringing products in the U.S.
Industry observers note that patent enforcement in solar hardware is intensifying as project deployment scales. The case underscores the growing value of proprietary balance-of-system components, which account for a rising share of total installation costs. Shoals, based in Portland, Tennessee, has aggressively defended its intellectual property in this segment.
The ITC ruling carries significant weight as it includes a limited exclusion order, preventing unlicensed products from entering the country. However, Voltage may seek review by the U.S. Court of Appeals for the Federal Circuit, potentially prolonging the legal battle.
A counterargument exists that such patent disputes could stifle innovation and increase costs for solar developers. Some industry participants argue that overly broad patents on standard components may limit competition and slow the deployment of renewable energy infrastructure.