Future indoor light and associated energy consumption based on professionals' visions: A practice- and network-oriented analysis

Through the insight and visions of Danish lighting experts, this manuscript investigates relationships between future lighting technologies and practices and the expected impacts on energy and lighting consumption. The light-emitting diode (LED) will be the dominant technology of the future smart light systems. Though, energy efficiency is expected to improve, new market players will appear and new lighting opportunites will be exploited that, in turn, will increase the demand for light. A rebound effect is expected. The overall impact on the future consumption of energy is uncertain, so we conclude that political guidance is needed if society wants to assure the reduction of energy consumption through widespread diffusion of smart LED lights. •Widespread diffusion of smart LED lighting systems is occurring.•Rebound effect might occur because of functional, technological, and structural dynamics.•New light players will integrate new competences and novel use of lighting.•New evaluative criteria for lighting system reduce importance of energy saving.•Policy guidance is essential to achieve energy saving from smart LED light.