ES Foundry Closes 2025 with U.S. Solar Cell Manufacturing Milestones and FEOC-Compliant PERC Production

Company strengthens America's domestic-content supply chain and prepares for gigawatt-scale expansion in 2026

GREENWOOD, S.C., Dec. 3, 2025 /PRNewswire/ -- ES Foundry, an American company advancing U.S. solar by onshoring crystalline solar cell production, is closing 2025 with significant milestones that mark a turning point for domestic solar manufacturing.

The company's Greenwood, South Carolina, facility has reached full-scale PERC (Passivated Emitter Rear Contact) solar cell production, establishing a proven and Foreign Entities of Concern (FEOC)-compliant foundation for developers and asset owners seeking to meet the Inflation Reduction Act (IRA) domestic-content requirements and reduce exposure to imported-supply-chain risk.

SEIA's most recent report underscores the strong national push to expand domestic solar manufacturing. ES Foundry reflects that ambition in action: we are one of the few manufacturers producing U.S. cells at commercial scale today, offering developers and asset owners a reliable, FEOC-compliant source as the broader domestic ecosystem builds out.

Built on field-proven PERC technology, ES Foundry's production enables developers and panel manufacturers to secure domestic-content and FEOC compliance today — while other next-generation cell technologies remain tied up in global intellectual property disputes.

"In 2025, ES Foundry demonstrated that American solar cell manufacturing is both achievable and essential," said Alex Zhu, CEO of ES Foundry. "By focusing on proven, scalable PERC technology, we've given U.S. developers and asset owners the ability to build with confidence and certainty. Our next phase will take that momentum further — closing the import gap and strengthening America's energy independence."

Throughout 2025, ES Foundry partnered directly with leading U.S. developers and asset owners to integrate its FEOC-free crystalline cells into commercial, community and utility-scale projects. By sourcing domestically produced cells, these companies strengthened their eligibility for the 10% IRA domestic-content bonus credit and reduced exposure to the supply-chain volatility and compliance risks associated with imported components.

Looking ahead, ES Foundry is advancing plans for a 2-GW Phase II expansion at its Greenwood facility in 2026. The next phase will further enhance efficiency, consistency and output. Once complete, ES Foundry will rank among the largest producers of crystalline solar cells in North America.

"Every new gigawatt of capacity we bring online reinforces America's clean-energy independence," Zhu added. "ES Foundry's role is to manufacture, not wait. While others pause for patents and litigation, we're producing the cells  and making the shipment."

About ES Foundry
Based in South Carolina, ES Foundry is accelerating the U.S. solar industry by onshoring the manufacturing of crystalline solar cells. Its state-of-the-art Greenwood facility produces high-quality, bankable cells that meet the needs of U.S. panel manufacturers and the supply chain demands of developers and EPCs. Purpose-built for Foreign Entity of Concern (FEOC) compliance, ES Foundry operates with fully non-FEOC ownership, leadership and financing, ensuring transparent supply chains and verified eligibility for incentives, including the domestic content bonus. Backed by a team of seasoned industry veterans, ES Foundry delivers reliable, U.S.-made products that drive the growth and sustainability of clean energy. Follow ES Foundry on LinkedIn and Bluesky for the latest updates.

PR Contact
Leah Wilkinson
Wilkinson + Associates for ES Foundry
[email protected]
703-907-0010

SOURCE ES Foundry