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

December 17, 2025
T1 Energy has started construction on the 2.1GW first phase of its TOPCon cell manufacturing facility in Texas.
December 17, 2025
Renewables developer ib vogt has sold the 95.18MW Baobab solar PV project in Segovia, central Spain, to a subsidiary of Swiss independent power producer (IPP) EOS NER.
December 17, 2025
JA Solar is a lead partner in a joint venture that broke ground this week on a new 2GW solar PV cell, 2GW module and 1GWh energy storage manufacturing facility in Egypt.
December 17, 2025
Doral Renewables has signed a PPA to sell power generated at its 270MW Lambs Draw solar PV project, which will be built in Kansas.
December 17, 2025
Germany has revised down the price ceiling for roof-mounted solar PV systems to €0.1/kWh (US$0.117/kWh) for tenders to be held in 2026.
December 16, 2025
Ecoprogetti has installed a new 400MW module production facility in Oman, to be operated by American Advanced Clean Energy (AACE).

Upcoming Events

Upcoming Webinars
December 17, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA