Analysis of electrical energy efficiency using LED in the bank building (Study case in Bank X)

This study aims to analyse the efficiency of electrical energy by utilizing LED lights in the bank building in replacing fluorescent type lamps which can later be used as a basis for consideration of energy efficiency. This research was conducted using a qualitative description method by observing and measuring initial conditions, then conducting an analysis to calculate efficiency. To carry out energy efficiency analysis begins with an ideal plan for the need for lighting intensity according to the standard using LED lamp. Research activities began by collecting data covering the location and specifications of the building, detailed drawings in the form of ass built drawings related to electricity, lighting, and lighting equipment’s throughout the building. Then measure lighting intensity and illumination power. Measurement data were analysed against SNI 6197-2011 standard and carried out a plan to replace existing lamps using LED type lamps as energy efficiency. Then draw conclusions about energy efficiency by replacing LED lights. Based on data analysis of lighting intensity that there is 104 rooms or 55.32 % of 188 rooms measured that have not been accord to standard SNI 6197-2011. And analysis of illumination power that there is 55 rooms or 29.26 % of 188 rooms measured that have not been accord to standard SNI 6197-2011. If all of TL fluorescent lamps are replaced by LED lamps, and some rooms that less illumination power are improved the with LED lamps, so the total efficiency of electrical energy in the Bank Building is approximately 18 (eighteen) percent.