REC Silicon to shut down polysilicon production capacity in Montana, US

February 8, 2024
Facebook
Twitter
LinkedIn
Reddit
Email
REC Silicon’s Moses Lake facility in Washington, US, is expected to start its first polysilicon deliveries during Q1 2024. Image: REC Silicon.

Polysilicon manufacturer REC Silicon has decided to shut down its polysilicon production capacity at its Butte facility in Montana, US.

The company’s wholly-owned subsidiary, REC Advanced Silicon Materials LLC,  will shut down the polysilicon production capacity due to increased electricity costs in the region both in the short and mid-term. Production will continue for six to nine months, in order to fulfil ongoing orders to customers.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Even though the company will be shutting down the Butte polysilicon production, it will still be producing polysilicon at its Moses Lake facility in the northwestern state of Washington, which started its first production during the fourth quarter of 2023. For that facility, REC Silicon secured a 10-year fluidised bed reactor (FBR) polysilicon supply agreement with South Korean conglomerate Hanwha Solutions last year, which is estimated at US$3 billion.

The first deliveries from the Moses Lake facility are expected in Q1 2024, with a ramp up to 50% during Q2 2024 and reaching full capacity by year’s end.

In that last quarter of the year, the company sold 182MT of polysilicon capacity, of which 145MT from semiconductor grade polysilicon. Polysilicon sales for 2023 reached 749MT, nearly half of sales volume from the same period a year prior when it sold 1,502MT.

“We did everything in our power to return profitability to the polysilicon business in Butte, however, forecasts for sustained high electricity costs that are outside of our control necessitated this decision. After the transition has been fully executed, we expect an accretive impact to our earnings,” said Kurt Levens, CEO.

Updated on 09 February 2024: the headline and article have been modified to highlight that only the polysilicon capacity will be stopped in Montana.

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2028 and beyond.
13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

April 2, 2026
Solar manufacturer Qcells is expanding into integrated home energy systems with a new division targeting the US residential construction sector.
April 2, 2026
Monocrystalline passivated emitter rear contact (PERC) modules saw a 20% increase in average price in the US, according to Anza.
April 2, 2026
US solar manufacturer T1 Energy has produced 2.79GW of solar modules in 2025, in line with its guidance of 2.6-3GW for the year.
Premium
April 2, 2026
Analysis: Some in the US solar industry are positioning tariffs as a silver bullet for manufacturers, but it may not be as straightforward as that.
March 31, 2026
GameChange Solar has completed testing of its Genius Tracker system, which yielded results of no 'meaningful power loss' in most tests.
March 30, 2026
Solarcycle has signed an exclusive 'recycling services' agreement with Prologis, which operates over 1GW of rooftop solar capacity in the US.

Upcoming Events

Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland