Liquid windows and the energy-efficient buildings of tomorrow

Euronews | Dec 2, 2019 at 3:30 PM
  • Inside each window, there is a constant flow of 70 litres of distilled water and 30 litres of ethylene glycol.
  • Using solar cells, the windows absorb solar radiation and turn it into thermal energy to heat the building’s interior.
  • Scientists at this European research project are using the experimental pavilion to test the system’s efficiency.