Cathy Higgins. Ric Cochrane. Dave Hewitt. Executive Director, NBI. Research Director, NBI. Project Manager, PGL

Transcription

1 Dave Hewitt Executive Director, NBI Cathy Higgins Research Director, NBI Ric Cochrane Project Manager, PGL

2 Dave Hewitt, nbi NBI is a national non-profit working to improve energy performance of commercial buildings Board of Directors represent leaders in energy and green building Sponsors include progressive utilities, PBAs, market transformation entities and state governments Strategic relationships with leading organizations such as National Trust for Historic Preservation s Preservation Green Lab (PGL) PGL functions as a programmatic field office of the National Trust for Historic Preservation and works closely with local, state and national partners to develop innovative content and strategic partnerships Advances research that explores the value that older buildings bring to their communities Pioneers policy solutions that make it easier to reuse and green older and historic buildings

3 Existing buildings are the critical market opportunity now for significant energy savings. A focus on new construction strategies can only address 1-2% of the building stock each year. There are more than 70 billion square feet of existing commercial building space in the United States alone. Part of the critical path to meeting climate and energy policy goals as well as utility efficiency targets and real estate objectives. Need to move beyond building-by-building and widget-based approaches in a way that integrates profound energy savings into the urban fabric.

4 Held September 14-16, 2011 in Boulder, Colorado at the historic Hotel Boulderado Convened 80 national experts in critical aspects of energy efficiency in existing buildings including: Implementation Design Ownership & Management Research & Policy Energy efficiency programs Photo courtesy of Fitzmartin Consulting Aimed at defining the framework and tools needed to support much more aggressive levels of efficiency in the existing commercial building marketplace.

5 Learn from the latest case studies & research Inform and refine efforts underway to develop tools as well as market and regulatory approaches for catalyzing deep energy savings Connect companies, professionals and policymakers with experience in distinct disciplines of commercial real estate and energy efficiency Develop specific and replicable solutions that successfully address market barriers Identify strategies to accelerate deep energy savings in existing buildings throughout North America

6 Acknowledgements

7 Alliance for Sustainable Colorado Alliance to Save Energy Architectural Heritage Foundation BC Hydro Bestway Insulation, LLC Better Bricks/NEEA Cadmus Group CB Richard Ellis City of Portland BPS City of Seattle Clanton & Associates CNT Energy Commonwealth Edison Consulting Engineer Crestone Partners, LLC Design Alliance Earth Advantage Institute Ecology Action Ecotope Efficiency Maine Energy Center of Wisconsin Energy Foundation Energy RM Fitzmartin Consulting Gelfand and Partners Architects Goody Clancy Architects Green Building Services IESRMS Joyce Foundation K Energy/Better Bricks Living City Block M.A. Mortenson Company McKinstry Muldavin Consulting National Grid NBBJ Architects NEEP New Buildings Institute New Jersey Institute of Technology North Atlantic Energy Advisors NRDC NREL National Trust for Historic Preservation - Preservation Green Lab NYSERDA Oak Ridge National Lab Pacific Gas & Electric PECI Resource Media Rocky Mountain Institute Sacramento Municipal Utility District SERA Southern California Edison Southwest Energy Efficiency Projects State of Illinois SWEEP The Kresge Foundation UC Davis Energy Efficiency Center University of Idaho University of Washington US Department of Energy Wave Palo Alto Waypoint Building Group

8 Blach Intermediate School Modernization and Additions Energy use intensity Before: 56 kbtu/ft2 After: 33 kbtu/ft2 Source: Gelfand Architects, CA

9 Deep Savings are Possible Smaller Buildings Matter Learn from Leaders Simplify Delivery Aggregate Buildings Use Urban Strategies Create Solution Sets Facilitate Financing Align Programs & Policies Leverage Trigger Points Partner for Outreach & Training Target Tenants

10 Webinar Objective: Inform Connect - Change Today s Topics: 1. Market and Trends 2. Bright Spots 3. Key Topics 4. Typologies and Tools 5. Driving Change MARKET AND TRENDS: UNDERSTANDING OPPORTUNITY Cathy Higgins, nbi

11 Deep: 30% minimum and 50% target savings Retrofit: multiple measures/systems others: renovation upgrade change-out TI Energy Use Intensity (EUI): Watts/square foot/year Ultra-low energy building: achieving maximum energy efficiency of all systems and designs Small /medium buildings (SMB): < 50,000 square feet Getting to Fifty TM (GT50): cutting energy use in half

12 U.S. Commercial Non-Mall Buildings by Size 80% 70% 60% 50% 40% % of Bldgs % of Sq. Ft. % of Energy Use Buildings under 50,000 SF are: 95% of the buildings 50% of the square footage 45% of Energy Use 30% 20% 10% 0% Source: nbi created from Energy Information Administration Commercial Building End-Use Consumption Survey (CBECS) 2003.

13 Plug loads End-Use Projected Growth for the Residential and Commercial Sectors Source: Graph created by Ecova with data from EIA 2008 Annual Energy Outlook

14 CO 2 / NO 2 Building s price/value is flat or in decline New Construction lagging Renovation and Repositioning active Tenant & corporate sustainability criteria Energy ratings and disclosure ordinances Stretch or reach codes LEED LEED - LEED

15 USGBC Building Performance Report thru NBI s First View

16 Today s Topics: 1. Market and Savings 2. Bright Spots 3. Key Topics 4. Typologies and Tools 5. Driving Change Stop Waste Building, Oakland, CA BRIGHT SPOTS: LEARNING FROM LEADERS Cathy Higgins, nbi

17 Verify Document outcomes Establish metrics Increase confidence Identify Lessons Inspire / Influence Showcase Individuals and Organizations Prompt our natural interest to compare

18 Case Study Office 1-Story, 8,500 sf Constructed in 1940 Retrofit 2006 EUI: 46 kbtu/sf/yr Energy Star Rating: 99 LEED-NC Platinum Credit: Northern Plains Resource Council and High Plains Architects 2007 Energy Star Award The fact that we were able to walk our talk has given us an advantage point as an organization. -Teresa Erickson, Northern Plains Resource Council

19 Mercy Corps Headquarters Portland, OR Renovation EUI 36 kbtu/sf/yr 62% reduction from CBECS average Photo Source: Green Building Services

20 Mercy Corps Headquarters Portland, OR Energy Efficiency Measures Variable speed compressor heat pump condensing units Variable air volume (VAV) box with CO2 sensors Increased insulation Motorized clerestory windows to exhaust air Low-e glazing Direct/Indirect T8 fixtures with dimmable ballasts Daylighting controls Building Management System controls Commissioning Mercy Corp EUI National Average EUI Portfolio Manager EUI Ultra-low energy building

21 The Alliance Center Denver, CO Overview Case Study Multi-Tenant nonprofit Office 6-Story, 38,800 sf Constructed in 1908 Retrofit 2006 EUI: 42 kbtu/sf/yr Energy Star Rating: 85 LEED EB Gold, LEED CI Silver, Energy Star Leader and Colorado Energy Champion Award Owner: Alliance for Sustainable Colorado Credit: Alliance for Sustainable Colorado

22 The Alliance Center Denver, CO Business Total project cost: $3.07/sq ft Average annual energy savings: $8, tenants focused on advancing sustainability Serves as a public demonstration project for advanced design strategies Credit: Slaterpaull Architects

23 Case Study Multi-Tenant Office 14-Story, 134,000 sf Constructed in 1929 Retrofit 2007 EUI: 39 kbtu/sf/yr Energy Star Rating: 98 LEED EB Gold and AIA Seattle 2009 Top 10 Awards Owner: Rose Smart Growth Investment Fund Credit: William Wright Photography In ten years every building will either be a brown building or a green building. Jonathan Rose, March 2011

24 Efficiency Measures Removed ducted heating systems Recalibrated steam heating system Localized thermostats Operable windows Automated sunshades Lighting retrofit with automated controls Light shelves CO 2 sensors Re-commissioning Pre-retrofit EUI Vance EUI Portfolio Mgr. EUI Nat. avg. EUI Ultra-low energy building

25 Building occupied during renovation Improvement cost: $26/sq ft Increased occupancy by 26% since renovation Created TI guidelines for tenant retrofits to guide design decisions for daylighting, ventilation, and finishes. Credit: Lara Swimmer

26 The Aventine La Jolla, CA Overview Case Study Multi-Tenant Office 11-Story, 253,000 sf Constructed in 1990 Retrofit 2010 EUI: 23 kbtu/sf/yr Energy Star Rating: 100 LEED EB Platinum Owner: Glenborough, LLC Credit: Glenborough, LLC

27 The Aventine La Jolla, CA Energy Efficiency Measures Replaced chiller compressors Automated chiller controls EPA cool roof Lighting retrofit Automated lighting controls Daylighting: 50% daylighting views Whole Building Control/Mgmt: Piloting integrated energy information systems program Aventine EUI Nat. avg. EUI Portfolio Mgr. EUI Best practice existing building

28 1525 Wilson Boulevard Rosslyn, VA Overview Case Study Multi-Tenant Office 12-Story, 313,000 sf Constructed in 1987 Retrofit 2010 EUI: 64 kbtu/sf/yr Energy Star Rating: 97 4th Place in EPA National Building Competition Honored as one of EPA s EnergyStar Top Performers in 2008, 2009, and 2010 Credit: Glenborough, LLC Owner: Glenborough, LLC

29 Deep Retrofit On 3 buildings from portfolio of 3000 Savings Of 50 70% energy cost With 13% IRR Learned 2/3 of savings came from 5 measures Across portfolio 30 50% savings for 20+% IRR RMI Case Study, V. Olgyay

30 Savings Strategies Lighting Measures: high efficiency lighting, integrated daylighting and lighting controls HVAC: advanced systems, radiant heating / cooling, evaporative cooling, energy mgmt. controls, motorized ventilation dampers, demand controlled (CO 2 ) ventilation Daylighting: integrated lighting controls, automated blinds, exterior shades, skylights Envelope: operable windows, increased insulation, improved glazing Controls/Monitoring/Cx: whole building monitoring, tenantlevel metering, ongoing tracking, continuous commissioning (Cx)

31 0% 25% 50% 75% 100% Reported efficiency measures in 22 CA High Performance Buildings LIGHTING High efficiency lighting Daylighting Occupancy sensors / Lighting Exterior window shading Interior window blinds Light sensor controls HEATING, COOLING Energy monitoring systems High efficiency condensing boilers Underfloor air distribution Evaporative cooling Energy recovery Other high efficiency equipment Radiant floor heating VENTILATION CO2 Sensors Natural ventilation Increased ventilation rate Operable windows Night venting SHELL Reflective roofs High performance glass Increased insulation Thermal mass ON-SITE RENEWABLES Solar PV

32 Integrated design and multiple measures are more critical to lowenergy buildings than any given technology. Readily available technologies can be applied within standard budgets. Major renovations offer a major opportunity for deep savings. Repositioning existing buildings is currently an attractive real estate move. Building ratings, labels and recognition were a strong influence on increased efficiency targets. There is need for a consistent, long-term metric to measure the performance of buildings and policies.

33 Today s Topics: 1. Market and Savings 2. Bright Spots 3. Key Topics 4. Typologies and Tools 5. Driving Change KEY TOPICS: THE WORK OF THE WORKING GROUPS Cathy Higgins, nbi

34 1. Programs & Policy 2. Outreach, Education & Information Flow 3. Delivery Approaches 4. Urban Strategies 5. Technical Solutions / Typologies Ric Cochrane, PGL

35 Establish long-term energy plans Advance outcome-based and EB codes and compliance Utilities / Regulators must: value deeper savings more remove cost effectiveness and resource cost barriers to bundled measures maintain reliable multi-year programs initiate on-bill financing purchase proven/tracked savings Consider tax modifications to stir market investment Streamline access reduce process side

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37 2) Outreach, Education & Information Flow Increase and standardize cost, market and finance information Drive performance data and value Establish green leases and tenant energy guidance Work through trusted sources Timing is everything customize and target

38 Office Plug Loads: Best Practice Guideline nbi, ecova & others

39 Expand third-party models Pursue portfolios Establish power purchase agreements Leverage and support leading design firms Pilot alternative delivery and aggregation models Ecology Action SMB Efficiency Delivery Approach

40 Source: Peter Larsen, LBL Study, NECC Briefing Jan. 2011

41 Adopt benchmarking and disclosure ordinances Advance codes, fee-bates, density bonuses etc. Incorporate energy into infrastructure and planning Leverage community for aggregation Facilitate district energy

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43 Today s Topics: 1. Market and Savings 2. Bright Spots 3. Key Topics 4. Typologies and Tools 5. Driving Change 5) TYPOLOGIES AND TOOLS: BUILDING CHARACTERIZATION

44 Building Characterization: Identifying Opportunities Outreach and Marketing Ric Cochrane, PGL

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48 Characterizing Existing Buildings Focus on: Underserved building types Buildings of interest Buildings at risk Market share Repeatability of simplified guidelines

49 Bridging the Information Gap What do we need to know about buildings to identify deep retrofit opportunities? How are buildings the same? What are the commonalities that enable repeatability rules of thumb? How are buildings different? What do we need to know to achieve DER in underserved buildings?

50 Characterization Resources CBECS micro-data National characterization/segmen tation efforts Municipal permit and building data Architectural taxonomies Market analysis

51 Key Physical Variables Things That Can t Change Building Area Age Number of floors Exterior wall construction Percent glazing area Glazing location Glazing size Glazing type Freestanding versus attached Shape Location/Climate zone Things That Can Change Current building use HVAC equipment Major fuel source Lighting, refrigeration and plug loads Energy consumption (Btu) Roof composition

52 Market Analysis Market conditions Ownership and management Financial pressures Operations and maintenance

53 Scorecards

54 Building Types 51% of commercial buildings by number 33% of commercial buildings by area 1-Story Freestanding Pre-WWII Restaurant/Office/Retail Post-WWII Restaurant/Office/Retail/Grocery 1-Story Attached Pre-WWII N hood Storefront Rows - Office/Rest/Retail Post-WWII N hood Storefront Rows - Office/Rest/Retail Strip Mall <50K Strip Mall K 2+ Story Freestanding Post-WWII Office 2+ Story Attached Pre-WWII Main Street mixed-use Lodging Freestanding Post-WWII Motel - West Coast style Pre-WWII Boutique Hotel Post-WWII Hotel School 1-2 Story Free Pre-WWII K-12, Elementary, Junior HS, HS Post-WWII K-12, Elementary, Junior HS, HS <50K K-12, Elementary, Junior HS, HS K

55 National Building Survey

56 Pilot Phase The Green Lab and nbi will test the effectiveness of retrofit tools through strategic partnerships and determine how best to deliver deep energy savings to the target building types.

57 Today s Topics: 1. Market and Savings 2. Bright Spots 3. Key Topics 4. Typologies and Tools 5. Driving Change DRIVING CHANGE: NEXT STEPS TOWARD DEEP SAVINGS Dave Hewitt, nbi

58 FirstView analytical tool for existing buildings on the website soon Largely completed prototype analysis beginning work on the Multi-Measure tool Looking for pilot projects to utilize tools Developing proposals for funding around energy codes and policies to encourage deep savings in existing buildings Seeking performance data and case studies for GT50

59 Consolidated data repository from NBI whole-building performance projects Used for analysis, benchmarking and integration with new tools Primarily anonymous

60 Next Summit Deep Savings in Existing Buildings National Initiative Network Sponsors Strengthen Collaborations Delivery Partners: Urban Entities, possible thirdparty strategies make all buildings new buildings

61 City of Denver action with Alliance for Sustainable Colorado and Living City Block RMI, NBI and True Market Solutions to announce a portfolio energy retrofit challenge ULI announces Greenprint Center for Building Performance CA Commercial Building ZNE Champions network prioritizes existing buildings.

62 NEEA Existing Building Renewal Initiative getting ready to announce first buildings Rocky Mountain regional group formed at the Summit ad hoc meetings to drive deep energy savings

63 Energy and momentum for going deep in existing buildings Increased collaboration and dialog Need more bright spots!!! Brief survey at end of webinar

64 Access the Report: A copy of the summit report, links to resources and webinar recording are available at: