United States trade policies are fundamentally altering the global solar manufacturing landscape. With over 92% of international PV module capacity currently facing import restrictions, manufacturers are scrambling to establish supply chains that comply with complex anti-dumping, countervailing duty, and Foreign Entity of Concern (FEOC) regulations. As the US prioritizes domestic production to secure its energy future, the industry is shifting away from traditional hubs toward new, compliant regions. However, a significant bottleneck remains: domestic module assembly capacity far outstrips the availability of compliant solar cells, forcing developers to navigate a challenging, tiered procurement strategy to maintain project viability.
The regulatory environment has become increasingly labyrinthine, moving beyond finished modules to target upstream components. Investigations into PV cells and potential future restrictions on polysilicon under Section 232 are forcing companies to rethink their global footprint. To bypass FEOC rules—which restrict tax credit eligibility for projects using equipment tied to specific foreign nations—many manufacturers are forming joint ventures. These partnerships often cap foreign ownership at 24.9%, a threshold designed to maintain compliance while allowing firms to continue accessing the lucrative US market.
Geographically, this shift is driving investment into the Middle East, North Africa, and Türkiye. Countries like Türkiye are rapidly expanding their PV cell and module manufacturing capacity, supported by national investment incentives aimed at capturing export demand. Meanwhile, smaller, agile manufacturers are emerging in sub-Saharan Africa to fill supply gaps. Despite these efforts, the disparity between US module assembly capacity—currently exceeding 66GW—and the limited supply of compliant cells creates a persistent market imbalance. Even in an optimal scenario where all compliant global cell production was directed to the US, a significant supply deficit would remain.
Consequently, the US solar market is now defined by a tiered procurement hierarchy. Developers must weigh the costs of tariffs against the benefits of federal tax credits, with the most secure supply chains consisting of cells that are both trade-compliant and free from FEOC exposure. While domestic cell production is scaling up through companies like ES Foundry and T1, the industry remains in a period of high volatility. Long-term success for the US solar sector now depends on moving beyond simple module assembly to secure a fully integrated domestic supply chain, including wafers, ingots, and polysilicon.