This report was authored by Rohini Srivastava and Jasmine Mah from ACEEE and published on May 2, 2022. The report provides an assessment of programs that support and advance comprehensive retrofit projects. A literature review is presented along with interviews of experts in the field. Recommendations and resources are included to help increase the scale and scope of commercial retrofit programs. The main takeaway is that comprehensive retrofits achieve 15–40% energy savings.

Keywords: Architecture/Engineering, Association, Building Retrofits, Climate Change, Cloud & Data Analytics, Connected/ EV Vehicles, Construction/New Buildings, Employee Productivity, Energy Efficiency/Management, HVAC & Indoor Air Quality (IAQ), Internet of Things (IoT), Lighting Systems/Controls, Post-COVID-19, Protocols/Standards, Smart Cities, Training, Utilities

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