As a leading manufacturer of flexible thin film solar panels, we continue to set the benchmark for integration of solar into innovative applications. Our products range from portable solar chargers and building solutions (BAPV) to military applications and emerging innovations.

Flexible, lightweight and powerful; our technology delivers.

GSE manufactures Copper Indium Gallium DiSelenide (CIGS) by using state-of-the- art, controlled co-evaporation and the thinnest stainless steel substrate possible to create flexible and light weight thin film PV products for use in any application. We offer tried and proven module technology, and partner with industry leading brands to develop solutions for your application. Our proven, controlled and stable production process delivers lightweight and flexible photovoltaic (PV) material from our state-of-art facility in the Arizona, USA, and we have more flexible CIGS installed than anyone else in the world.

thin film solar panels

Advantages: Light weight, flexible, thin film CIGS panel

  • CIGS offers the highest efficiency of thin film PV technologies
  • CIGS offers the highest energy yield at different light conditions
  • CIGS offers low environmental impact and sustainability
  • Flexible module materials offer low weight per area roof (kg/m2) and low weight per power generated (kg/W)
  • Flexible module materials offer low profile and flexible mounting solutions
  • Flexible module materials are unbreakable and durable

Established Manufacturing Process

Global Solar Energy's factory is located in Tucson, Arizona and produces flexible solar cells, based on our proprietary CIGS thin film processes, innovative interconnect technology and module structures.

  • Location: Tucson, Arizona / USA
  • Capacity: 50 MW/yr
  • Start of production: March 2008

Dissected: flexible thin film CIGS photovoltaic cell

CIGS Solar Panel
  • Lightweight stainless steel foil substrate + roll-to-roll manufacturing → low manufacturing cost
  • Co-evaporated CIGS + 3-stage process → high efficiency
  • High CIGS deposition rate + compact equipment → low manufacturing cost
  • Inexpensive raw materials for evaporating metals + low material usage → low manufacturing costs

Dissected: Cell Interconnect Technology

  • Laminating flexible PV cells to a polymer film with patterned metallic conductors → Integrated Cell Interconnect (ICI)
  • Low cost raw materials → decreases product cost
  • Minimize optical losses + minimize resistive losses → increases conversion efficiency
  • Roll to roll lamination process + increase product robustness → high yield process
  • Design flexibility + robust submodule handling → enables radical, new product forms
thin film solar panel

Dissected: Module Packaging Technology

thin film solar CIGS
  • Optimized product structures available for every application (up to 25 year warranted lifetime)
  • UL and IEC certified since 2011 + superior field performance → customer satisfaction
  • GSE's intrinsic device stability + reduced vapor barrier requirements → lower product cost and weight (up to 250 W/kg)
  • GSE product development + manufacturing experience → high yield production process
  • Design flexibility + robust submodule handling → enables radical, new product forms


Electricity generated from PV has lower greenhouse gas emissions compared to fossil-fuels.

Electricity generated from CIGS PV has lower greenhouse gas emissions compared to crystalline silicon.

  • low material consumption + efficient manufacturing processes → low ecotoxicity and greenhouse gas emissions
  • low energy use during manufacturing + high conversion efficiency → fast energy payback times

UNEP (2016) Green Energy Choices: The benefits, risks, and trade-offs of low-carbon technologies for electricity production. Report of the International Resource Panel. E.G.Hertwich, J. Aloisi de Larderel, A. Arvesen, P. Bayer, J. Bergesen, E. Bouman, T. Gibon, G. Heath, C. Peña, P. Purohit, A. Ramirez, S. Suh.

White paper link for CIGS Thin-film Solar Cell Technology

Follow the link to the 2019 CIGS Whitepaper written jointly by the CIGS industry and research communities: