IEA SHC Task 50 Newsletter #1
March 2015 - PDF 0.69MB
Lighting accounts for approx. 19% (~3000 TWh) of the global electricity consumption. Without essential changes in
policies, markets and practical implementations it is expected to continuously grow despite significant and rapid technical improvements, like solid-state lighting, new façade and light management techniques. With a small volume of new buildings, major lighting energy savings can only be realized by retrofitting the existing building stock. Compared to existing installations, the majority of new solutions allow a significant increase in efficiency – easily by a factor of three or more – going along with highly interesting payback times. However, lighting refurbishments are still lagging behind
compared to what is economically and technically possible and feasible.