Solar

ES Foundry expands planned U.S. solar cell manufacturing output to 3 GW at its South Carolina facility

By Prince Sibanda · July 13, 2026 · 6:22 AM · 4 min read
ES Foundry South Carolina facility

Among the United States’ objectives during the current clean energy transition is ensuring that each state has a diversified energy portfolio so that it is not predominantly dependent on a single energy source, which may deteriorate. This is an achievable target for the United States, considering the amount of wealth and resources that it has access to. The nation has consistently been among the leading solar energy-producing countries in the world for the past few decades. This run is set to continue with companies like ES Foundry expanding planned U.S. solar cell manufacturing output to 3 GW at its South Carolina facility.

A general overview of ES Foundry as a leading solar energy producer

The solar energy landscape is highly competitive at the moment with the emergence of new companies that are using the latest technological innovation to their advantage. ES Foundry is an American manufacturer of crystalline silicon solar cells dedicated to onshoring high-quality photovoltaic (PV) cell production.

The entity was founded in 2023 and operates a massive 400,000-square-foot facility in Greenwood, South Carolina. One of the standout benefits that newer companies have is that they do not need to readjust to the modern ways of executing projects the same way that older companies have to.

ES Foundry deserves a tremendous amount of credit for how it is accelerating the U.S. solar industry. Its state-of-the-art Greenwood based facility produces high-quality, bankable cells that meet the requirements of U.S. panel manufacturers and the supply chain demands of developers. 

Assessing how ES Foundry expanded its planned U.S. solar cell manufacturing

There was great excitement in the energy industry after ES Foundry announced that it had completed a 2 gigawatt (GW) expansion and the first solar cell coming off the new production line at its Greenwood, South Carolina factory, bringing the company’s total annual solar cell manufacturing capacity to 3GW.

The achievement represents the beginning of production from ES Foundry’s expanded manufacturing platform that emphasizes the company’s role as a leader in one of the most vital components of the domestic solar supply chain. The market is currently saturated with future manufacturing announcements, but ES Foundry is showing a great ability to execute.

For the United States, the company’s milestone comes at the most appropriate time, considering that domestic module manufacturing has grown significantly, but solar cells are still one of the most persistent challenges in establishing a resilient American solar manufacturing ecosystem. Ultimately, ES Foundry is allowing the United States to remain competitive in solar generation.

The addition of 2GW of new production capacity and elevating its annual capacity to 3 GW, ES Foundry is addressing the observable gap that many other companies have tried to address without much success.

ES Foundry adds an extra 3 GW at its successful South Carolina facility

There is a massive amount of positivity within the company as it has reached a massive milestone that many would not have seen coming. Alex Zhu, CEO of ES Foundry stated the following:

“The U.S. solar market does not need more announcements — it needs operating capacity, proven production and domestic suppliers that can support customers now. With our 2 GW expansion complete, our total capacity now at 3 GW and the first cell off the new line, ES Foundry is helping close one of the most critical gaps in the U.S. solar supply chain.”

Analyzing the benefits brought by the ES Foundry Greenwood facility

ES Foundry’s Greenwood facility has developed a reputation for producing good-quality crystalline bifacial PERC solar cells, a tried and tested bankable technology that is designed to support a broad range of U.S. solar applications, from utility-scale projects to distributed-generated systems.

Through its advanced resources, ES Foundry is able to achieve high-volume production, rigorous quality standards, and the documentation customers are in need of. The company must be commended for assisting customers in reducing supply chain uncertainty and enhancing domestic content strategies. 

Prince Sibanda
Prince Sibanda

Prince is a versatile writer focused on energy, automotive, environmental, and general news topics. He makes complex technical and policy issues clear, engaging, and accessible for a broad audience.

Prince Writer
Prince Sibanda

Prince is a versatile writer focused on energy, automotive, environmental, and general news topics. He makes complex technical and policy issues clear, engaging, and accessible for a broad audience.