Energy performance of building-integrated electrochromic and photovoltaic systems

Innovative nanotechnology-based devices can offer multiple advantages in terms of renewable energy harvesting as well as energy saving in buildings. Among the technologies that can be used in transparent and semi-transparent building envelopes, neutral-colored perovskite-based heterojunction photovoltaic (PV) cells and solid-state electrochromic (EC) devices may play a pivotal role. These classes of devices have proven to offer significant benefits in terms of energy saving and enhancement of indoor visual comfort. In this work, the two types of technologies will be compared by considering two similar buildings equipped with glazing embodying such devices, with reference to specific climate conditions.