PIECEWISE TECHNO-ECONOMIC ANALYSIS OF LED CORN BULBS FOR STREET LIGHTING

Abstract

LED Corn bulbs are a simple solution to increase the energy efficiency of existing street lighting because their installation does not require the replacement of existing lamps. The paper analyses the techno-economic characteristics of LED Corn bulbs that can be used as a replacement for existing inefficient bulbs. Based on the collected data of more than 80 models of LED Corn bulbs, which are available on the European market, the functional dependences of power = f (luminous flux) and price = f (power) of these bulbs were determined using piecewise regression. Besides, based on the obtained functional dependencies, the effects of improving the energy efficiency of street lighting by replacing the existing High Pressure Sodium and High Pressure Mercury light bulbs with LED Corn bulbs in one city in Serbia were analysed.