the world's greenest buildings: promise vs performance in sustainable design

JERRY YUDELSON

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2014 Expo Arquitetura Sustentável

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The World’s Greenest Buildings São Paulo, Brasil

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Take-AwaysLower CO2

Emissions

ReportActual Use

Use “Best

Practices”

New York City

Testable Propositions – Green Building

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Green Building . . .

Reduces Carbon

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Green Buildings = Carbon Solution

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Green Building Boosts Bottom Line

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Business Case Proven

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• Financial & Economic Return• Risk Management• Marketing & Public Relations• Productivity & Health Gains• Sustainability Policies

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Business Benefits

Range Of Proven Benefits

Absenteeism(15%)

Carbon Emissions(35%)

Energy Costs(30%)

Hospital Stays(2.5 Days)

WasteManagement Costs

(50-90%)

Water Usage(30-50%)

Performance on School Tests

(20%)

Retail SalesPer Square Foot

FactoryProductivity

Office Productivity(2.8-20%)

Occupancy Rates(3-4.1%)

Rental Rates(up to 174%)

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Productivity Gains Very Important

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Green Building Growing Rapidly

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Potential Impact Of Rapid Greening

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BUT…Energy Performance Reports Lacking

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Performance Counts!

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Some Green Buildings Under-Perform . . .

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Energy Savings in LEED Buildings

What’s The Issue?

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Only Carbon Emissions Count

Zero-Net-Energy Buildings

NREL Research Support Facility IGolden, Colorado

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Solon Corporate HQ, Berlin, Germany

Zero-Net-Energy Building

How Much Energy Should Buildings Use?

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World’s Greenest Buildings: Research

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CRITERIA FOR STUDY:• New construction• 5000 sq.m., or larger• Non-residential use• Built/occupied since 2004• LEED Platinum, DGNB Gold or similar rating• Willing to publish performance and cost

data– Energy use mandatory– Water use optional

North American Buildings

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Winnipeg, Canada

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111 kWh/m2/yearManitoba Hydro Place

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111 kWh/m2/yearNREL RSF I

Rockville, Maryland

2000 Tower Oaks182 kWh/m2/year

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Yale University, Connecticut

Kroon Hall91 kWh/m2/year

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Portland, Oregon

Twelve West

Double LEED Platinum

138 kWh/m2/year

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European Buildings

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Berlin, GermanyDGNB Gold

Heinrich Böll Foundation98 kWh/m2/year

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Männedorf, SwitzerlandSwiss Minergie Plus

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74 kWh/m2/yearDaniel Swarovski Corp.

Dübendorf, SwitzerlandSwiss Minergie Plus

Forum Chriesbach103 kWh/m2/year

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Hoofddorp, The NetherlandsLEED-CS Platinum

TNT Express HQ114/kWh/m2/year

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Asia/Pacific Buildings

Zero Energy BuildingGreen Mark Platinum

41 kWh/m2/yearBCA Headquarters–Singapore

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Pune, IndiaGRIHA 5-star

Suzlon One Earth 59 kWh/m2/year

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2 Victoria 62 kWh/m2/year

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I Perth, Australia

The Gauge193 kWh/m2/year

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Melbourne, Australia

190 kWh/m2/year

Council House 2

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Melbourne, Australia

111 kWh/m2/yearWorkplace6

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I Sydney, Australia

116 kWh/m2/year

One Shelley

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I Sydney, Australia

106 kWh/m2/year1 Bligh

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Sydney, Australia

Tainan City, TaiwanEEWH Diamond

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Magic School of Green Technology 40 kWh/m2/year

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Where Do We Go From Here?

Frankfurt, Germany

Source Energy Goal: 100 kWh/m2!

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100 kWh/m2/yearKfW Bank

The Future Will Be Green, But . . .

If It Doesn’t Perform . . .

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Are you willing to say:

. . . It Can’t Be Called Green?

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Take-AwaysLower CO2

Emissions

ReportActual Use

Use “Best

Practices”

Thanks!

JERRY YUDELSONthegbi.orgjerry@thegbi.org

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