dave hewitt cathy higgins ric cochranenewbuildings.org/sites/default/files/des_eb_summit...12-story,...

Cathy Higgins

Research Director, NBI

Ric Cochrane

Project Manager, PGL

Dave Hewitt

Executive Director, 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

Dave Hewitt, nbi

• 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.

• 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.”

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

Acknowledgements

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

Blach Intermediate School

Modernization and Additions

Energy use intensity

Before: 56 kBtu/ft2

After: 33 kBtu/ft2

Source: Gelfand Architects, CA

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

MARKET AND TRENDS: UNDERSTANDING OPPORTUNITY

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

Cathy Higgins, nbi

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 (GT50): cutting energy use in half TM

0%

10%

20%

30%

40%

50%

60%

70%

80% % 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

Source: nbi created from Energy Information Administration Commercial Building End-Use Consumption Survey (CBECS) 2003.

U.S. Commercial Non-Mall Buildings by Size

2-29-2012

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

CO2 / NO2

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

USGBC Building Performance Report thru NBI’s First View

Today’s Topics:

1. Market and Savings

2. Bright Spots

3. Key Topics

4. Typologies and Tools

5. Driving Change

BRIGHT SPOTS: LEARNING FROM LEADERS

Stop Waste Building, Oakland, CA

Cathy Higgins, nbi

2-29-2012

Verify

Document outcomes

Establish metrics

Increase confidence

Identify Lessons

Inspire / Influence

Showcase

Individuals and Organizations

Prompt our natural interest to compare

• Office

• 1-Story, 8,500 sf

• Constructed in 1940

• Retrofit 2006

• EUI: 46 kBtu/sf/yr

• Energy Star Rating: 99

• LEED-NC Platinum

• 2007 Energy Star Award

Case Study

“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

Credit: Northern Plains Resource Council and High Plains

Architects

Mercy Corps Headquarters | Portland, OR

Renovation

Photo Source: Green Building Services

• EUI 36 kBtu/sf/yr

• 62% reduction from CBECS average

Ultra-low energy

building

Portfolio Manager EUI

National Average EUI

Mercy Corp EUI

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

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

The Alliance Center | Denver, CO

Overview

Credit: Alliance for Sustainable Colorado

Case Study

Total project cost: $3.07/sq ft

Average annual energy savings: $8,800

35 tenants focused on advancing sustainability

Serves as a public demonstration project for advanced design strategies

The Alliance Center | Denver, CO

Business

Credit: Slaterpaull Architects

• 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

Case Study

Ultra-low energy

building

Portfolio Mgr. EUI

Nat. avg. EUI

Vance EUI

Efficiency Measures

Removed ducted heating systems

Recalibrated steam heating system

Localized thermostats

Operable windows

Automated sunshades

Lighting retrofit with automated controls

Light shelves

CO2 sensors

Re-commissioning

Pre-retrofit

EUI

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

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

The Aventine| La Jolla, CA

Overview

Credit: Glenborough, LLC

Case Study

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

The Aventine| La Jolla, CA

Energy

Best practice

existing

building

Portfolio Mgr.

EUI

Nat. avg. EUI

Aventine

EUI

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

Owner: Glenborough, LLC

1525 Wilson Boulevard| Rosslyn, VA

Overview

Credit: Glenborough, LLC

Case Study

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

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 (CO2) ventilation

• Daylighting: integrated lighting controls, automated blinds, exterior shades, skylights

• Envelope: operable windows, increased insulation, improved glazing

• Controls/Monitoring/Cx: whole building monitoring, tenant-level metering, ongoing tracking, continuous commissioning (Cx)

Reported efficiency measures in 22 CA High Performance Buildings

0% 25% 50% 75% 100%

LIGHTINGHigh efficiency lighting

DaylightingOccupancy sensors / Lighting …

Exterior window shadingInterior window blinds

Light sensor controls

HEATING, COOLINGEnergy monitoring systems

High efficiency condensing boilersUnderfloor air distribution

Evaporative coolingEnergy recovery

Other high efficiency equipmentRadiant floor heating

VENTILATIONCO2 Sensors

Natural ventilationIncreased ventilation rate

Operable windowsNight venting

SHELLReflective roofs

High performance glassIncreased insulation

Thermal mass

ON-SITE RENEWABLESSolar PV

Reported Measure Frequency (from total of 22 participants)

Integrated design and multiple measures are more critical to low-energy buildings than any given technology. Readily available technologies can be applied within standard budgets.

Major renovations offer a major opportunity for deep savings. Re-positioning 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.

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

1. Programs & Policy

2. Outreach, Education & Information Flow

3. Delivery Approaches

4. Urban Strategies

5. Technical Solutions / Typologies Ric Cochrane, PGL

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

36

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

2) Outreach, Education & Information Flow

Office Plug Loads:

Best Practice Guideline nbi, ecova & others

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

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

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

5) TYPOLOGIES AND TOOLS: BUILDING CHARACTERIZATION

Today’s Topics:

1. Market and Savings

2. Bright Spots

3. Key Topics

4. Typologies and Tools

5. Driving Change

Building Characterization:

Identifying Opportunities

Outreach and Marketing

Ric Cochrane, PGL

Characterizing Existing Buildings

Focus on:

• Underserved building types

• Buildings of interest

• Buildings at risk

• Market share

• Repeatability of simplified guidelines

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?

Bridging the Information Gap

CBECS micro-data National

characterization/segmentation efforts

Municipal permit and building data

Architectural taxonomies

Market analysis

Characterization Resources

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

Key Physical Variables

Things That Can Change Current building use HVAC equipment Major fuel source Lighting, refrigeration and

plug loads Energy consumption (Btu) Roof composition

Market Analysis

• Market conditions • Ownership and management • Financial pressures • Operations and maintenance

Scorecards

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 50-100K 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 50-100K

Building Types

National Building Survey

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.

Pilot Phase

DRIVING CHANGE: NEXT STEPS TOWARD DEEP SAVINGS

Today’s Topics:

1. Market and Savings

2. Bright Spots

3. Key Topics

4. Typologies and Tools

5. Driving Change

Dave Hewitt, nbi

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

Consolidated data repository from NBI whole-building performance projects

Used for analysis, benchmarking and integration with new tools

Primarily anonymous

Next Summit

Deep Savings in Existing Buildings National Initiative

Network Sponsors

Strengthen Collaborations

Delivery Partners: Urban Entities, possible third-party strategies

make all buildings new buildings

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.

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

Energy and momentum for going deep in existing buildings

Increased collaboration and dialog

Need more bright spots!!!

Brief survey at end of webinar

Access the Report: A copy of the summit report, links to resources and

webinar recording are available at: www.newbuildings.org/summit