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Portfolio Manager Overview

Technical Descriptions for Models Used in the Rating System

Please refer to the following overview document for general guidance on EPA’s national energy performance ratings. This document provides detailed information on the methodologies used to create the energy performance ratings including details on rating objectives, regression techniques, and the steps applied to compute a rating.

Technical Description: EPA’s National Energy Performance Ratings PDF (92KB)

Additional information on specific data analyses completed for each building type is presented below.