ECONOMIC FEASIBILITY OF RENEWABLE ENERGY POWERED STREET LIGHTING: A CASE STUDY

摘要

Some major issues associated with the current use of fossil fuel include concerns about energy security, climate change and negative impacts on the environment. In addition, there are concerns related to the supply and cost of conventional energy sources due to limited resources and widely fluctuating prices. These issues can be addressed by the utilization of renewable energy which has minimal impact on the environment and which represents an unlimited resource. This research investigates the replacement of lighting systems powered primarily by conventional energy sources with renewable energy technologies using a case study in the United States. An analysis was conducted to determine the economic feasibility of replacing conventional streetlights with energy efficient lighting and renewable energy systems in the city of Duluth, Minnesota. This analysis compared four alternatives over a 25-year period with the goal of establishing the alternatives that represent the best opportunity for energy efficiency and cost savings. Results of this study provides insights for engineering managers on the economic impact of various alternatives when considering energy efficient options and renewable energy sources for streetlights.