Enphase Energy Begins U.S. Production of IQ Solid‑State Transformer Modules in Texas

Enphase Energy has commenced U.S. production of power modules for its IQ Solid‑State Transformer (IQ SST), a strategic step toward assembling full-scale IQ SST racks intended for AI data center applications. This manufacturing milestone, confirmed by the company on September 8, 2026, makes Texas the production hub for building and validating complete rack systems.

In its September 8 press release, Enphase Energy stated that power modules for its IQ SST are now being assembled in the United States as part of the development of full-scale racks for AI data centers. This marks a tangible progression from earlier technical milestones toward mass manufacturability and system integration. The development comes amid continued advancement of the IQ SST initiative, targeting AI infrastructure markets. A reliable U.S. production line advances Enphase’s ability to deliver on those aims.

This manufacturing update triggered a measured stock-market response. On the day of the announcement, Enphase Energy shares initially dipped approximately 0.66% within five minutes post-release, before rallying to close up around 3.11%. This intraday performance underscores investor interest in the IQ SST initiative and its potential longer-term impact on enterprise energy infrastructure.

These metrics come from analyzed news reactions of Enphase’s announcements, which show the company’s median five-minute price reaction to news is roughly –0.13%, and the median close-of-day reaction is –0.48%. The stronger-than-average rebound following the IQ SST news suggests investors responded positively to the manufacturing update compared to a typical Enphase announcement.

The story underscores Enphase Energy’s deepening move into AI-related energy hardware markets through its IQ SST. With operations now producing power modules domestically, the company advances its roadmap toward demonstrating and delivering full-system transformer racks. This could position Enphase as a notable supplier in the evolving AI data-center power landscape.

Investors will likely monitor developments around IQ SST system demonstrations, production scaling, and potential customer engagements in the coming weeks and months. Whether this U.S.-based manufacturing capability can drive revenue or strategic partnerships remains to be seen, but today’s announcement is a clear step forward in operationalizing Enphase’s AI infrastructure ambitions.