ENERGY STAR products are independently certified to save energy without sacrificing features or functionality. Saving energy helps prevent climate change. Look for the ENERGY STAR label to save money on your energy bills and help protect our environment.
Improving your home's energy efficiency with ENERGY STAR can help to reduce high energy bills, improve comfort and reduce greenhouse gas emissions. Let us help you — whether you do-it-yourself or hire a qualified professional.
A new home that has earned the ENERGY STAR label has undergone a process of inspections, testing, and verification to meet strict requirements set by the US EPA. ENERGY STAR certified homes use 15-30% less energy than typical new homes while delivering better comfort, quality, and durability.
Licensed Professional's Guide Guide (1.8MB) provides information to assist the licensed building professional in reviewing a rated building as part of the application for the ENERGY STAR. Here you will find the procedures for evaluating the acceptability of a building’s indoor environment and verifying the building and energy data entered into Portfolio Manager.
Methodology for Incorporating Source Energy Use (206KB) provides an explanation of the distinction between site and source energy consumption methodologies. The document also provides details on the policy for incorporating renewable energy, the philosophy behind the use of national factors, and specific calculations used to derive each conversion factor.
2001 Class Study (111KB) and 1999 Class Study (953KB) both provide detailed information about the characteristics of buildings that earned the ENERGY STAR in 1999 and 2001. These papers present important data that verifies the validity of the national energy performance rating system.