LAUSR

The objective of this paper is to develop a combined refined technical and financial model to evaluate smart street lighting control system for saving energy and cost. The refined model incorporates independent variables such as the volume of traffic, pedestrian density, speed, ambient luminance, presence of median, parking allowance, intersection/interchange density, and visual guidance/traffic control, as well as dependent variables such as smart street lighting costs, payback period, and Life Cycle Cost (LCC). The refined technical and financial model evaluation includes the collection of data from the City of El Cajon, San Diego. The results of technical model indicate that implementing smart street lighting control system would reduce energy consumption from 17,360 to 10,351 kWh using data collected for E Main St., El Cajon, CA. The developed model was also verified using data from available worldwide cities for its accuracy. The financial evaluation model developed provides total cost of installation, cost benefit analysis, and the net present value of the smart street lighting control system. The financial evaluation of the model shows that energy saving by implementing smart street lighting control system has a payback period of 4 years and 6 months. The net present value analysis shows that the project can start making profit after 3 years.