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US Conference of Mayors Green buildings and Climate Change July 27, 2006 Greg Kats PowerPoint Presentation
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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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Presentation Transcript
slide1
US Conference of Mayors

Green buildings and Climate Change

July 27, 2006

Greg Kats

slide3
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
slide4

LEEDTM Point Distribution

Five LEED credit categories

greening affordable housing
Greening Affordable Housing

Plaza Appts., San Francisco

7000 units of efficient, green affordable housing in 2 yearsPartners Include:Enterprise Community Partners Fannie Mae JPMorgan Chase BofA Citibank AIA NRDCSee:www.greencommunitiesonline.org/about-partners.asp

productivity gains from high performance lighting systems
Productivity Gains from High Performance Lighting Systems

Source: Carnegie Mellon University Center for Building Performance, 2005

health gains from improved indoor air quality
Health Gains from Improved Indoor Air Quality

Source: Carnegie Mellon University Center for Building Performance, 2005

energy efficiency plus health learning benefits of green schools
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%)

third creek elementary school nc
Third Creek Elementary School (NC)

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

benefits not quantified
Benefits not Quantified
  • 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
slide16

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

slide17
New World Trade Center

Buildings all LEED

  • Security
  • Global Warming
  • Choice of Standard
leed and the 2030 challenge
LEED and the 2030 Challenge
  • Ashrae 90.1
  • Minimum energy efficiency
  • Green Power
  • Location
  • Leveraging USGBC/LEED and 30,000 LEED Accredited Professionals
ice bear cooling energy storage

Typical home or business application

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
way station
Way Station
  • Annual Energy Cost

$1.49 $.46

example cool and standard color matched concrete tiles

cool

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
reflective pavements are cooler
Reflective Pavements are Cooler
  • 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

for more information
For more Information
  • 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