Methodology for Assessing and Providing Recommendations for Waterfront Lighting Efficiency Improvements

The United States Navy has one of the largest portfolios of waterfront propert, and is one of the leading consumers of energy in the nation. The Navy's "Alternative Energy Ashore" goal mandates that by 2020, half of the total energy consumption ashore come from alternative sources. To meet this goal, the Navy "will first focus on a dramatic reduction in energy consumption". This goal is the primary driver of a project at the Bremerton Annex of Naval Base Kitsap in Washington State, in which the Navy has requested Bonneville Power Administration to design and construct a replacement to the waterfront base's antiquated medium-voltage series street lighting system. The contractor was responsible for preparing an engineering survey, condition assessment report and detailed design documents for the improvements. This paper will describe the process by which the contractor team conducted the field investigation and developed the recommendations and designs for a replacement system. The methodology for assessing existing illumination levels and energy consumption and comparing those with proposed improvements to determine a recommended solution can be applied to similar energy improvement efforts at other ports and waterfront installations. Additionally, the results of the analysis offer owners seeking similar waterfront lighting improvements guidance on which approaches will work best from a sustainability and cost standpoint.