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news digest ♦ Solar existing Indian strategic investor, Tata


Flisom, a Swiss company developing technologies for manufacturing of flexible thin film CIGS solar modules, has raised a substantially large investment.


The amount of money raised has not been disclosed.


The cash will be used to further develop Flisom’s CIGS technology and build a production plant with an annual capacity of 15MW in Switzerland.


Besides securing financial backing, Flisom also signed an agreement with Empa, the Swiss Federal Laboratories for Materials Science and Technology, to provide research and development support on high-efficiency flexible CIGS solar cell technology.


Flisom’s third funding round was completed with participation from a Swiss investor along with the firm’s existing strategic investor, Tata, one of India’s largest and most respected business houses.


“This new investment marks investors’ satisfaction with Flisom’s progress towards the development of industrial manufacturing technology for roll-to-roll production of flexible solar modules. The 15MW plant will serve as a blueprint towards the establishment of larger-scale plants to manufacture flexible solar modules at low cost”, says Flisom’s interim CEO Marc Kaelin. ”Flisom’s technology shows strong potential in helping solar electricity become affordable.”


“At Tata, we are keen to support the company in achieving its vision. Such technologies have a potential to transform many lives for the better”, adds K.R.S. Jamwal, Executive Director, Tata Industries. “We admire the team and technology, based on a record setting efficiency of over 20 percent for CIGS from Empa, which we hope will be scaled up successfully. The funding will enable Flisom to purchase equipment and hire more experts to convert an innovative Swiss technology into an industrial reality.”


Flisom’s high performance products, processes and systems could lower the price of solar electricity thanks to low material usage, economic production technology, and reduced storage, transportation and installation costs.


Markets addressable by Flisom’s flexible solar module manufacturing technology include utility scale solar farms, building integrated photovoltaics (BIPV), building applied photovoltaics (BAPV), transportation, portable power and electronics.


The key is roll-to-roll manufacturing


The production technology is roll-to-roll manufacturing of flexible solar modules, involving deposition of CIGS thin films onto polymer foil.


A schematic showing the process is below:


Founded as a spin-off company from ETH Zurich (Swiss Federal Institute of Technology Zurich), Flisom has subsequently developed proprietary tools and processes for manufacturing solar modules.


After moving to Empa’s Dübendorf campus, Flisom has been collaborating with Empa’s Laboratory for Thin Films and Photovoltaics led by Ayodhya Nath Tiwari through various projects.


On 17th January 2013, Empa announced that its CIGS flexible solar cells achieved 20.4 percent photovoltaic conversion efficiency – a world record for CIGS technology that equals the record efficiency of polycrystalline silicon wafer solar cells.


“Scale-up for large-area solar modules and adapting these complex innovative processes for industrial manufacturability is quite a challenge and requires close collaboration between research labs and industrial partner”, says Pierangelo Groening, head of the Department of Advanced Materials and Surfaces and member of the Board of Directors at Empa.


“Therefore, Empa and Flisom have signed a collaboration agreement on certain topics of flexible CIGS technology, and Empa has deputed Tiwari for a part-time involvement as senior strategic officer to support Flisom’s further development, a move that is instrumental to Empa’s long-term strategy to support early-stage companies with global market ambitions,” continues Groening.


“This is a very special way of technology transfer – by way of sharing highly experienced staff. We expect Flisom to benefit greatly from Ayodhya Tiwari’s expert knowledge and experience. I see it as sort of a kick-start for the company’s new phase of development”, says Empa CEO, Gian-Luca Bona.


“The success also highlights, according to Bona, Empa’s strength in the field of renewable energy and, in particular, photovoltaics. We have several labs here at Empa devoted to the development of various innovative thin film technologies for solar energy generation”, he adds.


“Along with the success of Flisom’s capital raise, we are very impressed by the high photovoltaic conversion efficiency attained by our scientific partners at Empa”, concludes Flisom interim CEO Kaelin. “We look forward to benefitting from the insights of Empa to further raise the efficiency of flexible solar modules produced using Flisom’s industrial roll-to-roll vacuum


106 www.compoundsemiconductor.net March 2013


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