a net-present value analysis for a wind turbine purchase at a small us college现在净价值分析的风力涡轮机购买我们一个小学院.pdfVIP

Energies 2010, 3, 943-959; doi:10.3390/en3050943 OPEN ACCESS energies ISSN 1996-1073 /journal/energies Article A Net-Present Value Analysis for a Wind Turbine Purchase at a Small US College Nicholas H. Johnson 1,* and Barry D. Solomon 2 1 Principia College, Elsah, IL 62028, USA 2 Department of Social Sciences, Michigan Technological University, Houghton, MI 49931, USA; E-Mail: bdsolomo@ * Author to whom correspondence should be addressed; E-Mail: nick.johnson@; Tel.: +1-618-374-5078. Received: 29 March 2010 / Accepted: 20 April 2010 / Published: 6 May 2010 Abstract: Wind power is becoming an increasingly attractive method of electric power generation due to concerns with global climate change, increasing uncertainty of future oil supplies, and energy security. While most large-scale wind turbines are part of wind farms, which help states meet state renewable energy standards, several colleges and universities in the United States have purchased wind turbines for financial and educational purposes. This paper gives details of a cost-benefit analysis completed for a small liberal arts college in Illinois, Principia College, which is considering buying a single large-scale turbine. The process set forth here can easily be adapted to any college, university, or school. It is found that the project has a positive net present value for both a 20-year scenario and a 30-year scenario. Assuming the project did not receive any grants, Principia College would need to have an annual