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US Conference of Mayors Green buildings and Climate Change July 27, 2006 Greg Kats Where LEED fits General Service Administration study of 5 green building standards Sustainable Building Rating System Summary July, 2006 LEED BREEAM GBTool CASBEE Green Globes

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US Conference of Mayors

Green buildings and Climate Change

July 27, 2006

Greg Kats



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General Service Administration study of 5 green building standardsSustainable Building Rating System Summary July, 2006

  • LEED

  • BREEAM

  • GBTool

  • CASBEE

  • Green Globes

    Reasons why LEED different, strongly preferred by GSA

  • Covers all project types

  • Tracks quantifiable aspects of sustainable design and building performance

  • Trained professionals verify LEED

  • Well defined system for incorporating updates: consensus -based

  • Most widely used rating system


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LEED standardsTM Point Distribution

Five LEED credit categories



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Greening Affordable Housing standards

Plaza Appts., San Francisco

7000 units of efficient, green affordable housing in 2 yearsPartners Include:Enterprise Community PartnersFannie MaeJPMorgan ChaseBofACitibankAIANRDCSee:www.greencommunitiesonline.org/about-partners.asp


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Productivity Gains from High Performance Lighting Systems standards

Source: Carnegie Mellon University Center for Building Performance, 2005


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Health Gains from Improved Indoor Air Quality standards

Source: Carnegie Mellon University Center for Building Performance, 2005


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Energy Efficiency Plus Health & Learning Benefits of Green Schools

33% energy efficiency improvement

over conventional design

plus

Enhanced Indoor Air Quality:

Increased Learning, Productivity & Performance (3%)

Increased Future Earnings of Students (1.4%)

Reduced Asthma (25%)

Reduced Colds and Flu (15%)

Reduced Teacher Turnover (3%)


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Third Creek Elementary School (NC) Schools

800 students moved from 2 older schools in 2002Same students and teachers3 years prior to move 60% of students on grade level in math and reading2 years post-move 80% on grade levelNo other changes



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Benefits not Quantified Schools

  • Reduced Teacher Sick Days

  • Heat Island Reduction

  • Lower Operations and Maintenance (O&M) Costs

  • Enhancement of generating system reliability and improved power quality

  • Insurance and risk related benefits

  • Improving Equity and Addressing Spiritual Values

  • Educational enrichment as an aspect of greener, healthier facilities



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There is a fundamental asymmetry between the time scales that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

Even if we Stop CO2 Emissions Now, Stabilization will Require Several 100 Years


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New World Trade Center that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

Buildings all LEED

  • Security

  • Global Warming

  • Choice of Standard


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LEED and the 2030 Challenge that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

  • Ashrae 90.1

  • Minimum energy efficiency

  • Green Power

  • Location

  • Leveraging USGBC/LEED and 30,000 LEED Accredited Professionals


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Typical home or business application that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

Ice-Bear™ Cooling Energy Storage

  • Eliminates ~9kW of on-peak demand

  • Stores ~ 50kW-hr of off-peak energy

  • Shifts 93% of consumption to off-peak

  • Saves annual site energy (kW-hours) 010% to 25%(in typical application)

  • 110 units cut ~1MW of on-peak demand and ~1GW-hour of on-peak energy


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Way Station that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

  • Annual Energy Cost

$1.49 $.46


Example cool and standard color matched concrete tiles l.jpg

cool that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

CourtesyAmericanRooftileCoatings

standard

∆R=0.37

∆R=0.26

∆R=0.23

∆R=0.15

∆R=0.29

∆R=0.29

Example: Cooland Standard Color-Matched Concrete Tiles

  • Can increase solar reflectance by up to 0.5

  • Gain greatest for dark colors


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Reflective Pavements are Cooler that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

  • Fresh asphalt

    Albedo: 0.05

    Temperature: 123°F

  • Aged asphalt

    Albedo: 0.15

    Temperature: 115°F

  • Prototype asphalt coating

    Albedo: 0.51

    Temperature: 88°F


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Cherokee: Fisherman’s Point - Illustrative that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.


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One Liberty that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases. PlazaLiberty Property Trust


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Turner Construction Survey that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases. (09/04)


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For more Information that the climate system reacts to increases in greenhouse gases and the time scales to recover from such increases.

  • For copies of cost benefit reports and summary slides see: www.cap-e.com

  • Re green affordable housing see: www.greencommunitiesonline.org

  • Ice Energy: www.ice-energy.com

  • Alex Frangos, Industry Seeks New Green Building Standard, Wall Street Journal, March 29, 2006. See http://www.realestatejournal.com/propertyreport/newsandtrends/20060331-frangos.html?refresh=on

  • www.newresourcebank.com


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