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Posted on December 11, 2018 by  & 
External Company Press Release

Minimal carbon footprint from Midsummer's thin film solar cell process

A new study commissioned by Midsummer shows that the company's proprietary flexible CIGS thin film solar module manufacturing process is much more environmentally friendly than other solar module production processes like e.g. for silicon modules. For more information see the IDTechEx revert on Energy Harvesting Microwatt to Megawatt 2019-2029.
The recent study by Swerea IVF, a leading Swedish industrial research institute, shows conclusively that Midsummer's flexible thin film solar cells have much lower CO2 emission equivalents than almost all other renewable energy sources. Compared with the production of silicon solar modules, Midsummer's rapid sputtering production process for thin film solar modules can result in a global warming potential (GWP) of merely 1/10 of the silicon modules.
Solar energy's carbon footprint increasingly important
"As solar energy installations spread globally, there will be an increased focus on its carbon footprint and energy payback," said Sven Lindström, CEO, Midsummer. "To manufacture energy demanding silicon panels, glass and aluminium frames with dirty coal power is not environmentally friendly. PV suppliers will be increasingly judged on the climate effect of their production processes. Here, Midsummer has a clear advantage with its extremely small carbon footprint. Our manufacturing process is very energy efficient and we don't use silicon, glass or frames."
Another reason for the low carbon footprint is the extremely thin light absorbing CIGS layer. Midsummer uses less than 1um (one micrometer, 0.001 mm) of CIGS materials in its production process and this enables not only a fast production process, but also low energy consumption.
The objective of Swerea IVF's Life Cycle Assessment (LCA) study was to understand the environmental impact of Midsummer's production method for flexible CIGS solar module in a life cycle perspective. The results showed much lower CO2 emission compared not only with similar modules made of silicon but also with other thin film technologies.
Midsummer´s flexible CIGS solar modules do not consist of any glass or aluminium materials, reducing material consumption significantly.
The study has been reviewed and approved by a Swedish independent third-party institute; Miljögiraff AB.
Midsummer is a leading developer and supplier of advanced solar energy solutions for the production and installation of thin film solar cells and also a leading Swedish growth and export company. The unique DUO system has taken the position as the most widely distributed manufacturing tool for flexible CIGS solar cells in the world.
For additional information please contact:
Sven Lindström
CEO, Midsummer AB
Phone: +46 (0) 8 525 09 610
About Midsummer
Midsummer is a leading developer and supplier of advanced solar energy technology solutions for the production and installation of thin film solar panels. Its business offering includes equipment for cost-effective manufacturing of thin film solar cells as well as building-integrated photovoltaic (BIPV) solutions for the application of thin film solar cells on buildings (facades, roofs etc.). Midsummer's thin film solar modules are light, flexible, durable and highly efficient and therefore ideal for distributed renewable energy projects. Midsummer's proprietary technology is based on a rapid process for the production of flexible thin film solar cells using sputtering of all layers of the solar cell.
About Swerea IVF AB
Swerea IVF is a leading Swedish industrial research institute with materials, processes and production systems within manufacturing and product development as key areas. Swerea IVF aim to create commercial advantages and strengthen the competitiveness and innovation capacity of their members and customers. Swerea IVF performs research and development work in close cooperation with industry and universities, nationally and internationally.
Swerea IVF is part of the Swerea Group, which comprises the Swerea parent company and five research companies with materials science and engineering technology as core activities: Swerea IVF, Swerea KIMAB, Swerea MEFOS, Swerea SICOMP and Swerea SWECAST. Swerea is jointly owned by industry through associations of owners and the Swedish state through RISE Holding AB.
Source: Midsummer
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