Impact of energy efficient LED lighting on overall energy use intensity in commercial buildings: A Case study of Co-op house

Abstract

Energy efficiency is key for organizations that are keen on managing their energy costs. Lighting is one of the low hanging fruits, that buildings can implement to achieve savings. This study sought to quantify the savings potential through efficient lighting in Co-operative House, a commercial building in Nairobi. A literature review was done to understand the research gaps that exist. Data was collected by administration of a structured questionnaire that required the energy manager to fill in the electricity billing parameters. An inventory of the existing lighting was taken, detailing the type of fixtures type of lamps, energy consumption per fixture as well as hours of use. The data was tabulated and analyzed through Excel sheet. The analysis showed that replacement of all fluorescent lights with LED equivalent would contribute to 18.3 % improvement of the Energy Use Intensity.