REC Silicon’s Moses Lake plant officially plans to reopen at end of 2023

REC Silicon announced in its first quarter results call that plans are in motion to restart production at its Moses Lake, Washington, factory.

The Moses Lake production plant

“We expect to realize first production during the fourth quarter of 2023 and reach full capacity utilization during 2024,” said James A. May II, CEO of REC Silicon. “The restart of production is a direct result of Hanwha’s commitment to REC Silicon.”

Hanwha Solutions has invested over $200 million to become the largest shareholder in REC Silicon to support the build out of an American solar supply chain. Hanwha’s solar module division, Qcells, also announced it would open a second module assembly plant in Georgia, bringing its module manufacturing capacity to 3.1 GW.

REC Silicon operates two polysilicon manufacturing facilities in the United States, with an annual production capacity of 20,000 MT: 18,000 at Moses Lake, Washington, and 2,000 at Butte, Montana. Using hydropower-based clean energy, REC Silicon can produce low-cost polysilicon without emitting greenhouse gases.

The Moses Lake facility has been dormant for the last few years as it has been priced out of the Chinese market and there are currently no solar cell manufacturers in the United States.


See more about the battle over polysilicon and solar manufacturing between the United States and China here.

“We are currently discussing supplying Hanwha Solutions with polysilicon and Hanwha Corporation with silane gas. These arrangements would allow REC Silicon the opportunity to focus on manufacturing excellence and to enhance market solutions through product development,” May said.

Hanwha is also expanding its solar cell manufacturing footprint in South Korea. The company would take REC Silicon polysilicon from the United States, make solar cells in Korea and then use those cells in its final solar panel assembly in Georgia — sidestepping any need for Chinese our Southeast Asian materials.

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