Portfolio Manager Overview

Supporting Documents

  • Licensed Professional's Guide Guide PDF (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.
  • Technical Descriptions of Models in the Rating System provide detailed information on the statistical foundation of the ENERGY STAR ratings for eligible space types.
  • Methodology for Incorporating Source Energy Use PDF (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.
  • Technical Description of Greenhouse Gas Emission Calculations PDF (141KB) provides detailed information on the methodology used to calculate greenhouse gas emissions (in carbon dioxide equivalents — CO2e) in Portfolio Manager.
  • Methodology for Accounting for Weather Conditions PDF (204KB) provides an explanation of how weather normalization proceeds within the ENERGY STAR score calculations and other normalized metrics.
  • Portfolio Manager and Green Power Tracking PDF (231KB) provides information on how green power (onsite green power and utility purchases) are tracked within Portfolio Manager
  • 2001 Class Study PDF (111KB) and 1999 Class Study PDF (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.