Nothing Beats Zero. Updates on the Trends and Projects that are Getting to Zero Energy. Thanks to our valued sponsors and partners: 3/6/2018

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Chastity Gilbert
5 years ago
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Principal Integral Group Reilly Loveland

2017, New Buildings Institute All Rights

1 Nothing Beats Zero Updates on the Trends and Projects that are Getting to Zero Energy Cathy Higgins Research Director New Buildings Institute John Andary Principal Integral Group Reilly Loveland Project Analyst New Buildings Institute 2017, New Buildings Institute All Rights Reserved 2018 New Buildings Institute Thanks to our valued sponsors and partners: All Rights Reserved 2018 New Buildings Institute 1

Innovation and best practices for new and existing buildings and programs 2. Continuous code and policy advancement 3.

2 nbi: the virtuous cycle NBI is a national nonprofit working to improve buildings for people and the environment. We drive research, uncover solutions, and advance industry practices and policies that deliver positive change in the built environment. Program Areas: 1. Innovation and best practices for new and existing buildings and programs 2. Continuous code and policy advancement 3. Leadership in Zero Energy buildings and market development New Buildings Institute 2018 The 2018 Getting to Zero Status Update Cathy Higgins Research Director New Buildings Institute Photo: International Living Future Institute 2

meets >100% of its annual energy from renewables.

) consumed on site» Net = One year or more of on-site renewable

of documented performance at net zero» Emerging = not yet a

Intensity in kbtu/sf/yr - metric of energy performance.

Zero Energy Building (ZEB) New Buildings Institute 2018 We have

projects - nearly doubling each year - and maintain the most

3 What is a Zero Energy Building? A Zero Energy (ZE) building* is highly energy efficiency and meets >100% of its annual energy from renewables.» Energy = All energy (electric, gas, steam, liquid fuel etc.) consumed on site» Net = One year or more of on-site renewable energy production minus energy use» Verified = A year of more of documented performance at net zero» Emerging = not yet a year or more of data (may be on a path to ZE)» EUI = Energy Use Intensity in kbtu/sf/yr - metric of energy performance. *Also known as Net Zero Energy (NZE), or Zero Net Energy (ZNE). Zero Energy Building (ZEB) New Buildings Institute 2018 We have a fantastic story to tell about the growing number of ZE projects - nearly doubling each year - and maintain the most comprehensive database on North America s ZE emerging and verified projects. zhomes Photo: Ichijo USA New Buildings Institute

4 Proving Feasibility by Tracking Trends and Growth 700% growth since 2012 with nearly 500 projects New Buildings Institute, 2018 Spreading Success CA and OR are the top states and together represent ~ 50% of the list but Both the NE and SW have seen growth of greater than 90% since states and 4 providences have documented ZE buildings New Buildings Institute,

5 Trending Toward Larger Buildings More than 40% of all buildings and 88% of the total floor space of ZE Emerging buildings are 50,000 sf or larger. Practioners are increasing: 70 Mechanical/Electrical Firms 101 Architecture Firms New Buildings Institute, 2018 Schools Rule but many building types are getting to zero New Buildings Institute,

New Buildings Institute, 2018 Putting Performance into Perspective ZE Verified buildings on average use 60%

6 Private Sector is Paying Attention to ZE 26% of the full list is for profit private sector buildings and overall private ownership is now at 46%. New Buildings Institute, 2018 Putting Performance into Perspective ZE Verified buildings on average use 60% less energy than comparable existing U.S. commercial buildings and 46% less than new buildings under one of the most stringent U.S. base code (CA Title 24). New Buildings Institute,

NBI Zero Energy Certifications Collaboration & Expansion Collaborative Certification program for ZE Buildings (Nonres, MF) ZE Building

(SF, MF) ZE Building Database alignment, data sharing Code Proposals for 2021 IECC + ICC Standard Development New Buildings Institute, 2018

Radiant Research and Case Studies Charrette Toolkit Santa Monica Residential Guide 3 new school retrofit case studies CA and NW Watchlists

7 NBI Zero Energy Certifications Collaboration & Expansion Collaborative Certification program for ZE Buildings (Nonres, MF) ZE Building database alignment, data sharing Building performance label for ZE Buildings, Communities, Portfolios Certification program for ZE Buildings (SF, MF) ZE Building Database alignment, data sharing Code Proposals for 2021 IECC + ICC Standard Development New Buildings Institute, 2018 Your Role in Getting to Zero Use NBI s New ZE Resource Hub: ZE Action Bulletin ZE Project Guide Zero Energy Schools Stakeholder and Messaging Radiant Research and Case Studies Charrette Toolkit Santa Monica Residential Guide 3 new school retrofit case studies CA and NW Watchlists Hood River School District Library Hood River, OR Be Counted! Register your Project registry New Buildings Institute,

Share perspectives on the growth of ZE Build knowledge on policies driving projects, and design and

8 April 17-19, 2018 Grand Wyndam Pittsburgh gettingtozeroforum.org The premier global event dedicated to defining the future of low and zero energy buildings. Share perspectives on the growth of ZE Build knowledge on policies driving projects, and design and operation best practices Collaborate on opportunities for ZNE to transform the built environment New New Buildings Institute, Institute Questions? 8

9 Getting to Zero Cost John Andary Principal Integral Group zhomes Photo: Ichijo USA INTEGRAL GROUP Revolutionary Engineering trust nurture inspire John Andary, PE, LEED AP Principal :: Bioclimatic Design Leader 9

10 ZERO ENERGY. AT ZERO COST UC MERCED DOWNTOWN CENTER : HELLER MANUS ARCHITECTS 10

Climate : Merced, California UC Merced : Energy Goal Targeting Energy Use Intensity [kbtu/sf-yr] 50 45 40 35 30 25 20 15 10 40 32 27.5 25.

11 Climate : Merced, California UC Merced : Energy Goal Targeting Energy Use Intensity [kbtu/sf-yr] Estimated Title 24, 2013 Baseline 20% Better than T24 UC Merced Whole Building Energy Target Project Specific Net Zero Ready Target 48% Savings against LEED Baseline 11

Annual Insolation Study / Normative Building Without Shade Structure Cumulative Direct

Reference Image West Façade Annual Radiation on the Building Skin South Façade Annual

Shade Structure Cumulative Direct Radiation on the Building Skin ~ 65% Reduction in

12 Annual Insolation Study / Normative Building Without Shade Structure Cumulative Direct Solar Radiation Falling on Building Skin West Façade Reference Image South Façade Reference Image West Façade Annual Radiation on the Building Skin South Façade Annual Radiation on the Building Skin Annual Insolation Study / High Performance Building With Shade Structure Cumulative Direct Solar Radiation Falling on Building Skin West Façade Reference Image South Façade Reference Image West Façade Annual Radiation on the Building Skin South Façade Annual Radiation on the Building Skin ~ 65% Reduction in Solar Radiation Striking the West Glass ~ 90 % Reduction in Solar Radiation Striking the South Glass 12

September 21, 12:00pm, Clear Sunny Skies Rendered Perspective

13 Clean Roof for Clerestory and PV (via Power Purchase Agreement) Typical Daylight Conditions / Normative Building Without Shade Structure September 21, 12:00pm, Clear Sunny Skies Rendered Perspective Illuminance Diagram, Light Levels in Footcandles Falsecolor Luminance Map, Brightness 13

14 Typical Daylight Conditions / High Performance Building With Shade Structure + Light Courts September 21, 12:00pm, Clear Sunny Skies Rendered Perspective Illuminance Diagram, Light Levels in Footcandles Falsecolor Luminance Map, Brightness 14

Annual Energy Use of Design Options Energy Use Intensity [kbtu/sf-yr] 50 45 40 35 30 25 20 15 10 5 27.5 36 ~ 44 EUI w/o Shading 30 26.

15 Annual Energy Use of Design Options Energy Use Intensity [kbtu/sf-yr] ~ 44 EUI w/o Shading Fans Pumps Heat Rejection Cooling Hot Water Heating Lighting Plug Loads 0 UC Merced Whole Building Energy Target VAV Reheat Conventional System Fan Coil + Heat Pump (All Electric) Radiant DOAS + Heat Pump (All Electric) Total 15

Energy Cost Savings : High Performance Building vs Normative Building Without Shade Structure Lower annual energy use, higher likelihood of achieving ZNE Cost Transfer Doing More with Architecture

16 Energy Cost Savings : High Performance Building vs Normative Building Without Shade Structure Lower annual energy use, higher likelihood of achieving ZNE Cost Transfer Doing More with Architecture Life Cycle Cost Assessment Minimizing Total Cost of Ownership Using Life Cycle Cost Assessment, we can predict the incremental first cost that are supported by the annual energy savings. VAV (Conventional) $150,000/yr Radiant $82,000/yr 30-Year Savings Generates $679,000 in Net Present Value Equates to saving $9/sf First Cost Active Building Systems Passive Building Systems LCCA Assumptions Discount Rate 6% Analysis Period 15 years Electric Cost $0.15/kWh Energy Escalation 4%/yr 16

17 GO ZERO ENERGY. AND SAVE $1,000,000 KAISER PERMANENTE MOB : HAWLEY PETERSON SNYDER ARCHITECTS 17

18 Climate : Santa Rosa, California 18

19 Tuning The Facade NORTH = 44% WWR EAST = 30% WWR SOUTH = 13% WWR WEST = 12% WWR 19

HVAC STRATEGY : TYPICAL MOB Rooftop VAV-RH Unit Zoning

water reheat as needed from gas fired boilers HVAC

Thermodynamic Zoning = All Electric Building HP-3 HP-4

Cooling mode to eliminate reheat Thermal diffusers at each

20 HVAC STRATEGY : TYPICAL MOB Rooftop VAV-RH Unit Zoning RTU-1 RTU-2 Each RTU is in cooling year around with hot water reheat as needed from gas fired boilers HVAC STRATEGY : ZERO ENERGY MOB Rooftop Heat Pumps + Thermodynamic Zoning = All Electric Building HP-3 HP-4 HP-5 HP-2 N HP-1 Each Rooftop Heat Pump is in Heating or Cooling mode to eliminate reheat Thermal diffusers at each room for greater thermal comfort and energy savings due to transient nature of spaces 20

21 KPSR Thermodynamic Zoning Plans Thermafuser Air Distribution 21

HEATING HOT WATER PIPING COMPLEX All-Electric Option : Thermally Zoned Heat Pump System ROOFTOP HEAT

22 Low Cost Baseline Gas-Electric Option : VAV Reheat System Typical VAV + Reheat = Complex HEATING HOT WATER BOILER ROOFTOP UNIT COOLING ONLY DOMESTIC HOT WATER BOILER VAV BOX FOR EVERY 5 10 ROOMS HEATING HOT WATER PIPING COMPLEX All-Electric Option : Thermally Zoned Heat Pump System ROOFTOP HEAT PUMP HEATING & COOLING VAV BOX FOR EVERY ROOMS DOMESTIC HOT WATER HEAT PUMP VAV DIFFUSERS SIMPLE! 22

23 Over $1M First Cost Savings! Current Preliminary Baseline 23

24 3/6/ kw PV System via Power Purchase Agreement 24

25 Code and Policy Drivers to Zero Energy Cathy Higgins Research Director New Buildings Institute Reilly Loveland Project Analyst New Buildings Institute Photo: International Living Future Institute 25

improvements identified for upcoming code cycles Code

26 Complimentary Policy Elements New Buildings Institute, 2018 CA Title 24 Policy Path to ZNE Outcomes Specific code improvements identified for upcoming code cycles Code Cycles to ZNE, Source: SCE & AEC, 2009 New Buildings Institute,

27 Energy End Use by Building Type (new buildings in the Pacific Northwest) End Use by Type; Regulated vs. Unregulated Restaurant Minimart Supermarket Large Off Lodging Medium Off K 12 Other Assembly Small Off University Hospital OtherHealth Warehouse Anchor Retail Big Box Retail High End Retail Small Box Retail 80% 60% 40% 20% 0% 20% 40% 60% 80% Plugs+ Process Heating Lights Bad Operations Ventilation Cooling Pumping Hot Water Unregulated Regulated New Buildings Institute, 2018 Code Progression Includes Renewables Renewables offset load to achieve goal 20 PV contribution Regulated Loads Unregulated Loads Performance Goal New Buildings Institute,

Duck Curve Daytime renewables do not offset total generating capacity

ZE in energy codes by a datecertain (CA, WA ) Achieve interim goals to

) Enable utility programs to fully incent ZE Create Climate and/or

after Certificate of Occupancy (NYC, Boulder) Requirements for new and

28 Duck Curve Daytime renewables do not offset total generating capacity requirements New Buildings Institute, 2018 Net Energy Metering Achieve ZE in energy codes by a datecertain (CA, WA ) Achieve interim goals to ZE (OR, NY,.) Enable utility programs to fully incent ZE Create Climate and/or Energy Roadmaps for State/City Agencies Regulate energy performance after Certificate of Occupancy (NYC, Boulder) Requirements for new and existing public buildings lead by example Financial and Tax Incentives Key Policies to Support ZEB New Buildings Institute,

States Getting to Zero Washington ZE or ZE Capable in New Construction: Executive Order 18-01 Oregon Solar Ready and Carbon Neutrality: Executive Order 17-20 California ZE by 2025 and 2030: Executive

29 States Getting to Zero Washington ZE or ZE Capable in New Construction: Executive Order Oregon Solar Ready and Carbon Neutrality: Executive Order California ZE by 2025 and 2030: Executive Order B Minnesota ZE by 2030: Sustainable Building 2030 & Executive Order New York Voluntary Stretch Code: NYStretch Delaware ZE capable homes by 2025, ZE capable commercial by ZE: Senate Bill 59 Vermont ZE for all new residential & commercial by 2030 All Rights Reserved 2018 New Buildings Institute Cities and Counties Getting to Zero Carbon Neutral Polices 37 cities targeting carbon neutral Zero Energy Buildings 11 cities with zero ordinances and propositions New York City, NY Washington DC Pima County, AZ Santa Monica, CA Austin, TX Cambridge, MA Lancaster, CA Boulder, CO Palo Alto, CA Park City, UT Hayward, CA 100% Renewables 4 cities currently have goals for energy to be supplied by 100% renewable energy but this is gaining traction as more cities look to adopt similar goals. Park City, UT San Diego, CA Santa Barbara, CA Atlanta, GA All Rights Reserved 2018 New Buildings Institute 29

30 Questions & Discussion David and Lucille Packard Foundation Building Courtesy: EHDD 30

Toward Zero Energy Commercial Buildings: The Role of the Utility

Toward Zero Energy Commercial Buildings: The Role of the Utility Ralph DiNola Chief Executive Officer, NBI SWEEP Southwest Regional Energy Efficiency Workshop November 21st, 2014 Tempe, AZ Images are licensed