Item #4 Green Building — original pdf
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Austin Energy Green Building Residential Rating Development Update Heidi Kasper Manager, Residential Green Building 5/19/2020 © 2020 Austin Energy History & Mission Austin Energy Green Building developed the first rating system in the U.S. for evaluating the sustainability of buildings, creating a model for many other cities as well as the U.S. Green Building Council’s LEED certification system. Since 1991, Austin Energy Green Building has provided: • Ratings and programs • Education and outreach • Advocacy and planning Mission To cultivate innovation in building and transportation for the enrichment of the community’s environmental, economic and human well-being 2 Goal: Conservation Energy + Water + Materials • Save money • Reduce pollution • Reduce resource extraction/waste • Reduce the need for landfills • Support the City of Austin Climate Protection Plan • Support the local economy (focus on local materials & market development) 3 Goal: Quality of Life Environment + Transportation + Education + Equity • Promote healthier indoor & outdoor environments • Promote transportation options that work for everyone • • • Provide buildings that work for everyone Increase human health & well-being Improve construction worker health and safety 4 Austin Energy Green Building Ratings Austin Energy Green Building (AEGB) rates new construction and major renovation projects for three markets 4-Star Allandale Residence 5-Star Bluebonnet Studios 4-Star Oracle Single Family Production & Custom Homes 16,445 Total Rated 15,233 Austin | 1212 Extended Area Multifamily Residential < 7 Stories 172 Total Rated 27,505 dwelling units Commercial & Residential > 7 Stories 291 Total Rated 35,702,219 sq. ft. 16,908 AEGB Total Rated Projects total reported from FY 1991 - 2019 5 Residential Rating Development Timeline JUNE JULY AUG SEPT OCT NOV DEC JAN FEB MAR APR MAY DRAFT 1 6/19/19 Request for feedback sent out STAKEHOLDER MEETING 7/17/19 DRAFT 2 1/21/20 Reviewing and incorporating stakeholder feedback Stakeholder Developing final Researching and developing innovation guides feedback documents LAUNCH 5/8/20 6 Affordability Changing technology Updated standards Legislative constraints Healthy building materials THEMES Ease of use 7 2020 Single Family Rating The star rating achieved by a project is determined by the number of sustainability measures incorporated into the project. Basic Requirements 25 – 49 pts 50 – 74 pts 75 – 99 pts 100 pts or more 1 Star 2 Star 3 Star 4 Star 5 Star Star level requirements 8 Single Family 2020 New Basic Requirements • Digital Ventilation Controller • Electric Vehicle Readiness 9 Energy & Water Water Heater Efficiency • More emphasis on heat pump water heaters Residential Commissioning and Additional Testing • Added points for commissioning HVAC system • Added points for building envelope commissioning High Efficiency Fixtures and Appliances • Reduced points for LED lighting Electric Readiness • Aligning with 2021 IECC code requirement Indoor Water Water Efficient Home 10 Health & Materials Durable Finished Floor: vinyl products no longer accepted to achieve these points Improved Indoor Air Quality: • New point for GS 11, Green Guard Gold or SCS Indoor Advantage Gold paints without APE’s • New point for Green Guard Gold or SCS Indoor Advantage Gold sealants • Changed cabinet point to require no added urea-formaldehyde. Dedicated Dehumidification: (new points) 11 2020 Multifamily Rating The star rating achieved by a project is determined by the number of sustainability measures incorporated into the project. Basic Requirements 35 – 49 pts 50 – 64 pts 65 – 79 pts 80 pts or more 1 Star 2 Star 3 Star 4 Star 5 Star 12 Multifamily 2020 New Basic Requirements • Digital Ventilation Controller • Exhaust fans vented to outside at all cooktops • All ductwork registers and grills kept covered during construction • Projects must demonstrate irrigation water demand reduction of 30% from the baseline • Updated recycling capacity requirements 13 Energy & Water Prescriptive Energy Performance • Reduced points for LED lighting • Removed points for standard gas appliances Additional Testing and Quality Installation • Grade 1 insulation • 100% testing Electric Readiness Irrigation Controls Water Use Benchmarking • Aligning with 2021 IECC code requirement 14 Health & Materials • Auditory Comfort (NEW) • Interior Paints and Coatings (NEW) • Composite Wood • Humidity Control: 3 points for dedicated dehumidification system with programmable relative humidity controls • Durability (NEW) • PVC’s and Phthalates: increased number of points for choosing PVC free materials 15 Site, Education & Equity Electric Vehicle Readiness • 10% of all new parking Housing Affordability • Added an affordability calculator Car Free Living • New points for accommodating electric bikes and scooters 16 1717