Energy consumption, CO emissions and electricity costs of lighting for commercial buildings in Southeast Asia.

Building energy intensity (BEI) has been used to assess a building's overall energy performance. However, the energy performance, CO footprint and electricity costs due to lighting in buildings are currently required to assist relevant authorities to develop, revise and implement energy-efficient lighting policies that are effective and acceptable for the country. This work presents an estimation approach for lighting in commercial buildings in Southeast Asia and its decarbonisation pathway for benchmarking.