The Impact of Domestic Energy Efficiency: Retrofit Study of Lights & Fans Using Deemed Saving Method

This paper deals with the energy saving potential possible with the replacement of existing lights and fans with energy efficient LEDs and Pakistan Energy Labelled (PEL) fans in Punjab. As Punjab is considered as, the highest energy-consuming province of Pakistan, a case study is presented in which the retrofitting of current conventional lighting systems and fans with LEDs and Pakistan Energy Labelled (PEL) fans in the province is proposed. LEDs and Pakistan Energy Labelled (PEL) fans use less power comparatively and it has been assured that the output of light as well as of fans should be maintained same or better than the existing systems i.e. lumens/watt and air delivery respectively. LED lighting systems and (PEL) fans have huge energy saving potential, LEDs with payback period 9 months and (PEL) fans with payback period of 20 months.