Energy saving and emission analysis via lighting retrofitting in a large-scale hospital: Case study in Malaysia

Abstract

A field study on energy efficiency by lighting retrofitting has been carried out in one of the large-scale hospitals in Malaysia. The main objectives of this study were to find energy and cost savings after light-emitting diode (LED) tubes replacement in the hospital as well as the emission reduction and payback period time. The results have showed that, by applying this strategy, the energy cost saving will be almost US $ 2 million after 3 years with more than 5000 t of CO2reduction per year as well as 2.9 years is resulted as payback period time.