The Northwest Energy Efficiency Alliance (NEEA) engaged Navigant Consulting, Inc. (Navigant) to help NEEA develop a market characterization and twenty-year market baseline of the commercial Deep Energy Retrofit (DER) market in the Northwest Region. The DER market characterization and baseline assessment provide support for evaluating the impact of the Northwest regional Existing Building Renewal (EBR) Initiative that NEEA is in the process of developing.