Energy-efficiency upgrades result in more predictable and more immediate returns than many other business investments, and a wide range of options are available for financing such projects. Need help making sense of them all? Look to this manual to learn about purchasing and equipment services, leasing, performance contracting, and public and institutional options. A chart at the end outlines the criteria for choosing between bonds, municipal leases, and performance contracts. The U.S. EPA's Office of Air Quality Planning and Standards prepared this guide as part of the Energy Star Building Manual.