The EU-funded initiative Switch2save aims to overcome these limitations by combining and maturing EC and TC systems to create lightweight Energy Smart Insulating Glass Units (IGUs) suitable for large windows and glass façades. EC switching relies on materials that change their light transmittance by applying a low electrical voltage; TC cells are based on materials that change their infrared reflection properties with increasing temperature.

The project has following specific objectives:

  • Develop a combination of EC and TC cells – with optimized maximum energy saving potential – based on a switchable total energy transmittance (g-value)
  • Scale the manufacturing technologies for increased availability and cost effectiveness
  • Assess the performance of the innovative insulating glass units
  • Demonstrate the heating and cooling energy saving potential and the lighting comfort in two operational buildings in Greece and Sweden
  • Replace 50 windows and 200 m² glass façade area with the smart glass solution and perform a full “beforeafter” comparison of the energy demand for a one-year cycle

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement n°869929, project Switch2Save.