This paper from 1993 describes the economic benefits of purchasing an energy efficient computer. Although the technical specifications from this paper are outdated, the concepts of energy efficient appliances remain the same. Amory Lovins argues that when you buy an energy efficient desktop computer, you’re getting more benefits than just a lower electric bill and some of those benefits may be even more important to your business. There are additional significant economic and energy savings to the building in which the computer is housed.