New Buildings Institute

Transcription

1 New Buildings Institute Conduct building science research and technology assessments Develop technical best practices and design tools Partner with influential market actors Guide and influence national and local policy to drastically improve energy efficiency of commercial buildings NBI 2013

2 2014 Getting to Zero Status Update Topic 1 Topic 3

3 Add Headlines

4 Number of Projects from 2012 to 2014

5 Insert jpg of 2 page verified list

6 Where Are They?

7 Building Types

8 Ownership Type

9 Existing Building Renovation

10 18 ZNE Districts

11 Building Size

12 Performance Range (all projects w/ measured performance data) National CBECS average for Commercial Buildings Avg. EUI 21 n=95

13 Topic 1 Topic 3

14 Richardsville Elementary School Bowling Green, KY 72,300 SF Education K-12 Completed in 2010 LEED Gold $206/SF Warren County Public Schools Sherman Carter Barnhart, Architect CMTA, Mechanical and Electrical Photo: Sherman Carter Barnhart Photo: Sherman Carter Barnhart

15 Richardsville Elementary School Efficiency Measures: Ground source heat pump DOAS CO2 sensors Daylighting High performance lighting system with controls EMS & Energy Dashboard Photo: Sherman Carter Barnhart

16 Redding (CA) School for the Arts Integrated Daylighting and Controls Topic 1 Topic 3 Redding School for the Arts, CA Courtesy : Trilogy Architecture Steve Whittaker Photography

17 Bullitt Center: begin with a Solar Budget Typical U.S. Building EUI = 92 64,000 sf of PV High Performance Building EUI = 32 26,000 sf of PV ZNE. Building EUI = 16 14,000 sf of PV Courtesy: PAE Consulting Engineers

18 Bullitt Center Modeled EUI: 16 Focus on Occupancy and Plug Loads Courtesy of PAE Consulting Engineers

19 Ultra-low Energy Technologies and Strategies Ground Source Heat Pumps Ventilation: Natural, Dedicated Outdoor Air Systems (DOAS), Demand Control Ventilation (DCV) Highly Efficient Thermal Envelope Building Orientation & Glazing ratio Solar Control - shading Daylighting Access and Controls Energy Management Systems Building Dashboards Radiant Heating / Cooling & Chilled Beams Plug load Reductions Energy Recover Systems NASA Sustainability Base, CA Courtesy: Cesar Rubio Photography, McDonough & Partners

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21 Overall Trends ZNE is achievable in a wide variety of regions and climate zones ZNE works for many building types and sizes ZNE is achievable during existing buildings renovations Private sector is increasingly embracing ZNE ZNE districts are a growing trend Large proportion ZNE buildings are in the educational sector

22 Trends Bigger buildings, more types, more firms, diverse climates, lower EUIs, Buildings use readily available technologies and integrated design Net Positive Designers and owners want measurement and feedback Design teams going beyond the project to policy Low-rise Multifamily growing Ultra-low energy accomplishments are accelerating Ramona Apartments, Portland, OR Topic 1 Topic 3

23 Challenges Definitions Data Gathering PV delayed due to cost Projects not occupied or operated as modeled Getting the metering right Commissioning new form of ZNE Cx Fear of disclosure - ZNE seen as an end-all Topic 1 Topic 3

24 Insights ZNE offers a clear and aspirational target It is hard - a process not a static outcome High performance first lower energy use lowers PV cost Growth and opportunities in repeatable buildings (schools, banks, small offices) District, community, campus level offer cost and scaling efficiencies Actual ZNE happens downstream of design - operational focus, tenant behavior focus Topic 1 Topic 3

25 Cost Study Coming Statistical Analysis and Case Studies Types of buildings: community centers k-12 schools office buildings low-rise 88 High-performance buildings Topic 1 Topic 3

26 Sources of Info Design firms Articles, awards Utility and state programs Related programs USGBC LEED Living Buildings Challenge AIA DOE HPB database Topic 1 Topic 3 NBI Registry: Ultra-low and Zero Net Energy Buildings