Calisolar to build proprietary low-cost silicon solar wafers at US$600 million US plant

September 5, 2011
Facebook
Twitter
LinkedIn
Reddit
Email

Calisolar is making its move to become high-volume low-cost silicon solar wafer producer with plans to build a 16,000MT silicon production facility in Lowndes County, Mississippi at an estimated cost of US$600 million. A pioneer of enhanced UMG-based wafers, Calisolar is bring silicon material production in-house to significantly lower costs and have greater control over material quality. When fully operational, the plant is said to employ 951 full-time workers.

Despite three highly publicised bankruptcy announcements (Evergreen Solar, Spectrawatt and Solyndra) from solar firms based in the US in recent weeks and several PV module plant closures (BP Solar, Solon and SolarWorld) the US is home to three major polysilicon and wafer producers (Hemlock Semiconductor, MEMC and REC), which will be supplemented by Wacker Chemie on completion of its first polysilicon plant in the country.

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

The major investment by Calisolar has been supported by a US$75 million incentive package from the State of Mississippi as well as US$275 million conditional loan guarantee by the U.S. Energy Department (DOE). The DOE has also previously supported Calisolar in R&D programs to develop its low cost wafer technology. However, there were deadline issues attached with the DOE loan that originally applied to previous plans to build a plant in Ohio, which suggests alternative funding is being sourced. 

John Correnti, executive chairman of Calisolar's Board of Directors, said: “We've demonstrated that our low-cost silicon can produce high-performance solar cells, now sold commercially, which has been an important step in the growth of our company. Now, our focus is on expanding silicon production capacity — where we have the greatest competitive cost advantage — and achieving further cost savings.”

Calisolar previously acquired Canadian start-up 6N Silicon for its novel silicon refining expertise in 2010, which later that year attracted Suntech to partner in adding capacity at 6N’s plant in Ontario, Canada.

Metallurgical equipment and systems expert, SMS Siemag will supply the majority of the equipment including furnaces at the Mississippi facility, while Zachry Holdings will be engineering and building the facility, according to Calisolar.

Calisolar has small production plants in California and Ontario, Canada. The new facility was said to be required due to demand and the need to further scale operations to reduce production costs.
 

Read Next

November 4, 2025
Radovan Kopecek and Christian Peter look ahead to an event in Yiwu, China, later this month, where the wider commercialisation of high-efficiency back contact PV technology will be under the spotlight.
November 4, 2025
GCL Intelligent Energy, a subsidiary of Chinese polysilicon producer GCL Technology, has signed shareholder agreements for two clean energy projects in Indonesia with a combined capacity of 200MW.
November 4, 2025
Syncarpha Capital has completed construction work at the 7.1MW Acton solar-plus-storage project in the US state of Massachusetts.
November 4, 2025
Israel-headquartered IPP Enlight has secured US$150 million in financing to support a solar-plus-storage project in the US.
November 4, 2025
Average renewable energy PPA deal price fell marginally to €46.37/MWh (US$53.36/MWh) in Europe in the last week of October, per Pexapark.
November 4, 2025
Acen Australia has achieved full commercial operation at its 400MW Stubbo Solar project in New South Wales, making it the first solar PV power plant backed by a Long-Term Energy Service Agreement (LTESA) to reach this milestone.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
November 12, 2025
10am PST / 1pm EST
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 10, 2026
Frankfurt, Germany