Energy Benchmarking for Multifamily Apartment and Condo BuildingsÂ The Seattle Office of Sustainability and Environment offers this free workshop for multifamily building owners and property managers to support compliance with the City of Seattle's building energy benchmarking and reporting ordinance. Â This hands-on session will teach you how to benchmark your building's energy performance using the free on-line toolÂ ENERGY STARÂ® Portfolio Manager. Â Participants will also learn about the ordinance reporting requirements and services available for automated benchmarking from Seattle City Light, Puget Sound Energy and Seattle Steam. Â Workshop participants will create an account in Portfolio Manager and begin the initial energy performance rating for their building with individual guidance from an experienced benchmarking instructor and technical assistants. Â Participants are encouraged to bring information about their buildings to the session, including the square footage of âmixed-useâ areas such as retail and restaurants, common residential areas (laundry, pool etc.), and parking (if known). Â A data collection worksheet will be emailed to you prior to the workshop. Â If your facility has natural gas, please bring master account information and tenant meter numbers (a photo of each meter will work). Â Sample building data will be available for participants who do not bring their own data.