Unfortunately the evolution and market uptake of triple pane windows has been slow, comprising less than 2% of all window sales in 2016 (ACEEE Summer Study on Energy Efficiency in Buildings, 2018).

I have a problem with my triple-glazed windows. They are nine years old but the seals have failed. Moisture has collected in between the panes of glass and they are beginning to look unsightly.

At efficiencies of 12.5%, perovskite thin-film and transparent PV technologies reach 42% energy-use reduction when integrated into double- or triple-glazed windows.