engineering green buildings - ieee web hosting · 2005. 11. 5. · benefits of green building...
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![Page 1: Engineering Green Buildings - IEEE Web Hosting · 2005. 11. 5. · Benefits of Green Building Future costs outweigh construction costs Only 2% are construction costs 6% are for O&M](https://reader033.vdocuments.us/reader033/viewer/2022060917/60aa4ac6c8c0f8731833692e/html5/thumbnails/1.jpg)
KEMAKEMA XenergyXenergy
Engineering Green Buildings
IEEE & PES101 Second St, San Francisco
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KEMA KEMA XenergyXenergy
But what is green building?
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KEMA KEMA XenergyXenergy
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KEMA KEMA XenergyXenergy
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KEMA KEMA XenergyXenergy
What problems are we trying to fix?
■ Lack of design integration / missed opportunities includes unneeded features, suboptimal design
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KEMA KEMA XenergyXenergy
What problems are we trying to fix?
Lack of design integration / missed opportunitiesincludes unneeded features, suboptimal design
■ Stifled design process prescriptive versus performance-based criteria
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KEMA KEMA XenergyXenergy
What problems are we trying to fix?
Lack of design integration / missed opportunitiesincludes unneeded features, suboptimal design
Stifled design process prescriptive versus performance-based criteria
■ Value engineering without good stakeholder inputwhat can the occupants tell us? maintenance?
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KEMA KEMA XenergyXenergy
What problems are we trying to fix?
Lack of design integration / missed opportunitiesincludes unneeded features, suboptimal design
Stifled design process prescriptive versus performance-based criteria
Value engineering without good stakeholder inputwhat can the occupants tell us? maintenance?
■ Element of surprisespecific language in RFQs/RFPs, contracts
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KEMA KEMA XenergyXenergy
What problems are we trying to fix?
Lack of design integration / missed opportunitiesincludes unneeded features, suboptimal design
Stifled design process prescriptive versus performance-based criteria
Value engineering without good stakeholder inputwhat can the occupants tell us? maintenance?
Element of surprisespecific language in RFQs/RFPs, contracts
■ Overpaying for new technologies & processes
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KEMA KEMA XenergyXenergy
How can we make room for good ideas?
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KEMA KEMA XenergyXenergy
How can we make room for good ideas?
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KEMA KEMA XenergyXenergy
LEED™
■ Developed by the US Green Building Council
■ Creates a definition of “green”■ Standardized point system with prerequisites,
credits and innovation points■ Four levels of certification
CertifiedSilverGoldPlatinum
Leadership in Energy and Environmental Design
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KEMA KEMA XenergyXenergy
■ 23 Certified projects■ More than 500 registered projects■ 75 Million square feet■ 3% of new commercial space
LEED™ Projects
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KEMA KEMA XenergyXenergy
LEED Registered Projects in U.S.
0
100
200
300
400
500
600
1998 1999 2000 2001 2002 2003 2004
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KEMA KEMA XenergyXenergy
LEED percentage of new floorspace
0
100
200
300
400
500
600
1998 1999 2000 2001 2002 2003 2004
0.0%
0.5%
1.0%
1.5%
2.0%
2.5%
3.0%
3.5%
4.0%
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KEMA KEMA XenergyXenergy
LEED™ Credit Categories
■ Sustainable Sites■ Water Efficiency■ Energy & Atmosphere■ Materials & Resources■ Indoor Environmental Quality■ Innovation and Design Process
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KEMA KEMA XenergyXenergy
Sustainable Sites
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KEMA KEMA XenergyXenergy
Energy and Atmosphere
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KEMA KEMA XenergyXenergy
Energy and Atmosphere
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KEMA KEMA XenergyXenergy
Materials and Resources
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KEMA KEMA XenergyXenergy
Materials and Resources
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KEMA KEMA XenergyXenergy
Indoor Environmental Quality
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KEMA KEMA XenergyXenergy
Overhead System
Taylor Engineering
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KEMA KEMA XenergyXenergy
Underfloor System
Taylor Engineering
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KEMA KEMA XenergyXenergy
Benefits of Green Building
■ Future costs outweigh construction costs Only 2% are construction costs6% are for O&M92% are for labor
■ Investment in green buildings pays offReduced energy and water costsReduced maintenance, improved durabilityIncreased productivity of 5-20% or moreDecreased costs to society: pollution, waste
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KEMA KEMA XenergyXenergy
What is KEMA Xenergy doing?
■ Developing ordinancesSan Jose, Pleasanton, Dublin, Livermore, Berkeley, etc.
■ Coordinating vendor stocking and outreach
■ Trainings and charettes
■ Construction research
■ Project assistance Courthouses, libraries, fire and police stations, community centers, city halls, offices, and a prison.
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KEMA KEMA XenergyXenergy
Project Assistance Detail
■ Set preliminary LEED goal & budget
■ Write RFQ/Ps with LEED requirements
■ Integrated design with charettes + commissioning
■ Real value engineering
■ Contractor pre-bid training + LEED in contract
■ Construction oversight by 3rd party commissioner
■ Post construction and post occupancy commissioning
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KEMA KEMA XenergyXenergy
Challenges for Capital Construction
■ Return on investment■ Cost benefit analysis■ Fixed price, low bid
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KEMA KEMA XenergyXenergy
Challenges for Capital Construction
■ Electricity■ Gas■ Water
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KEMA KEMA XenergyXenergy
Challenges for Capital Construction
■ Limited construction budgets■ Strict operating budgets■ Environmental considerations■ Intensity of use■ Efficient, safe and productive workplaces■ Preserving beauty
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KEMA KEMA XenergyXenergy
Questions & Discussion Time
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KEMA KEMA XenergyXenergy
The Upfront Capital Costs of LEED
Figure 1. Incremental capital cost of meeting LEED as a percent of total project cost
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 … 30
Certified
Silver
Gold
Platinum
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KEMA KEMA XenergyXenergy
Commercial Office 121Education 96Government 48Interpretive Center 30Medical/Lab 27Industrial 19Multi-Family Residential 18Library 17Assembly 16Retail 14Transportation 8Special Needs Housing 5Hotel/Resort 4Daycare 3Other 9
435 LEED™ Registered Projects
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KEMA KEMA XenergyXenergy
Energy and AtmospherePoints
Prereq 1: Building Commissioning 0Prereq 2: Minimum Energy Performance 0Prereq 3: CFC Reduction in HVACR Equipment 0Credit 1: Optimize Energy Performance 10Credit 2: Renewable Energy 3Credit 3: Additional Commissioning 1Credit 4: Elimination of HCFCs and Halons 1Credit 5: Measurement and Verification 1Credit 6: Green Power 1
17
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KEMA KEMA XenergyXenergy
Seattle Justice Center
■ 500,000 sf Courthouse■ LEED™ 2.0 Registered Project
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KEMA KEMA XenergyXenergy
Seattle Justice Center
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KEMA KEMA XenergyXenergy
Seattle Justice Center
■ Part of new Civic Campus■ Design charette■ Glazed thermal buffer - glass curtainwall■ Daylighting throughout■ Green, vegetated roof■ Seattle requires LEED™ Silver
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KEMA KEMA XenergyXenergy
Marion County Courthouse, Salem, OR
■ 153,293 gsf Courthouse■ LEED™ 1.0 Registered Project
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KEMA KEMA XenergyXenergy
Water Efficiency Credit: Water Use Reduction
■ Reduce potable water use by 20% = 1 point
■ Reduce by additional 10% (30% total) = 2 pts.
■ Strategies:Low-flow faucets, toiletsWaterless UrinalsComposting toilets
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KEMA KEMA XenergyXenergy
Whitehead Research, Atlanta, GA
■ 350,000 sf Laboratory and Office■ LEED™ 2.0 Registered Project
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KEMA KEMA XenergyXenergy
Greenwood Elementary, Seattle, WA
■ 61,000 sf Elementary School■ LEED™ 1.0 Registered Project
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KEMA KEMA XenergyXenergy
Old National Bancorp, Evansville, IN
■ 291,000 sf Commercial Office Building■ LEED™ 2.0 Registered Project
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KEMA KEMA XenergyXenergy
Eugene Public Library, Eugene, OR
■ 127,531 sf Library■ LEED™ 2.0 Registered Project
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KEMA KEMA XenergyXenergy
■ 243,000 sf Local government■ LEED™ 2.0 Registered Project
Regional Fire Operations and TrainingCenter, Orange, CA
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KEMA KEMA XenergyXenergy
■ 647,000 sf Commercial Office Building■ LEED™ 2.0 Silver, 2000
PNC Firstside Center, Pittsburg, PA
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KEMA KEMA XenergyXenergy
■ 30,600 sf Environmental Center■ LEED™ 1.0 Platinum, 2000
Phillip Merrill HQ, Annapolis, MD
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KEMA KEMA XenergyXenergy
Buzzwords of the CA Building Industry
1950 affordable1960 local, union1970 ecological, solar, environmental1980 water efficient1990 energy efficient, sustainable2000 green
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KEMA KEMA XenergyXenergy
ACWMA GREEN BUILDING DESIGN TOOLS
RESIDENTIAL PUBLIC AND COMMERCIAL BUILDINGS
Leadership in Energy and Environmental Design
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KEMA KEMA XenergyXenergy
How Does the ACWMA and Member Agencies Use LEED™?■ RFPs/RFQs and Contract Requirements
Architects & Builders -- LEED™ certified professionalsBuilding Certification -- must achieve specific LEED™
credit
■ Goal Setting in Building Design AssistanceUse as a “best practices” tool in building design
■ LEED™-based RegulationsACWMA Model Civic Green Building OrdinanceLEED™-based Codes
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KEMA KEMA XenergyXenergy
How To Use LEED™
■ Design Guide RFPs, RFQs, (Hiring Architects & Contractors)Goal setting
■ CertificationProcess (registration, documentation, commissioning, certification)Public Recognition
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KEMA KEMA XenergyXenergy
Benefits of LEED Certification
■ PoliticalInternational recognitionLocal impact: press coverage, plaque
■ Documentation and ProcessCommissioning manualsMeasurement and verification dataSystem documentationStaff training materials and procedures
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KEMA KEMA XenergyXenergy
LEED™ Draws Out Additional Benefits
■ More than just on-time and on-budgetDesigning for comfort, health, the environmentBest investment is not always the least first costIAQ is normally treated solely as a code issue
■ Goal settingLEED provides focus for the design teamCollection of best practices shortens the learning curve