Document Type

Closed Project

Publication Date

Fall 2013


Timothy Anderson

Course Title

Advanced Engineering Economics

Course Number

ETM 535


According to the Environmental Protection Agency, the vast majority (70%) of light bulbs in the United States are still inefficient [1]. More and more companies are converting outside lighting to state-of-the-art high efficient long lasting options such as Light-Emitting Diode (LED). Proponents of high efficiency lighting assert that upgrading older bulbs to new efficient ones will generate savings even though the installation costs may be high. Firms often compare upgrade costs and perceived benefits using different approaches and analysis methods. This project investigates one firm’s upgrade economic model, provides critical analysis, and proposes an improved model which could be used for future upgrade projects at the firm. In addition to the proposed model, three (3) different use cases are examined in an effort to better understand under what conditions lighting upgrades make the most sense.


In Copyright. URI: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).


This project is only available to students, staff, and faculty of Portland State University

Persistent Identifier