Univerity of Hawaii - World's Greenest Buildings Presentation
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The document discusses the performance of green, sustainable buildings and whether they deliver on their promises of reduced energy and water usage. It notes that while green building is growing rapidly, some certified green buildings are underperforming and not achieving the expected energy savings. The document advocates for improved performance measurement and reporting to help ensure that green buildings actually perform as intended from an environmental perspective.
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Univerity of Hawaii - World's Greenest Buildings Presentation
- 1. The World’s Greenest Buildings: Promise vs Performance Jerry Yudelson Yudelson Associates
- 2. LEARNING OBJECTIVES: ©2013 Yudelson Associates WORLD’S GREENEST BUILDINGS 1. Get performance metrics for energy and water use. 2. Learn about design strategies for highperformance green buildings. 3. Understand approaches that produce high-performance results on conventional budgets. 4. Appreciate how aesthetic considerations complement low-energy designs in commercial buildings.
- 3. Testable Propositions (7) New York, NY
- 4. Green Building . . . Reduces Carbon
- 5. Green Building Growing Rapidly
- 6. Potential Impact Of Rapid Greening
- 7. Does Green Building Pay Off?
- 9. Business Case: Green Building FINANCIAL/ECONOMIC • energy/water savings • higher rents/occupancy • +net operating income • higher resale value • tax benefits ENVIRONMENTAL • sustainability • stormwater mgmt. • renewable energy • risk mitigation REPUTATIONAL • recruit/retain talent • increase stock value • marketing • public relations • investors/donors • value retention SOCIAL • health gains • employee morale • improved productivity
- 10. Energy Performance Reports Needed
- 11. Performance Reporting Informs One Shelley St. Sydney, Australia
- 12. Some Green Buildings Under-Performing . . . OHSU Center For Health & Healing Portland, OR
- 13. Energy Savings in LEED Buildings
- 14. What’s The Issue? Manitoba Hydro Place Winnipeg, Canada
- 16. Measuring Carbon
- 17. Europe: Measure Total Carbon Emissions Forum Chriesbach Dübendorf, Switzerland
- 18. World’s Greenest Buildings: Research One Bligh— Sydney, Australia
- 19. How Much Energy Should Buildings Use? Solon Corporate HQ, Berlin Zero-Net-Energy Building
- 20. Where Do We Need To Get To?
- 21. North American Buildings: LEED Platinum
- 22. Manitoba Hydro Place LEED Platinum Winnipeg, Canada
- 23. Manitoba Hydro Place LEED Platinum
- 24. Zero-Net-Energy Buildings NREL Research Support Facility I Golden, CO
- 25. NREL RSF I Golden, CO LEED Platinum
- 26. Mission Critical (3) Highly Desirable (15) Stretch (8) NREL Project Objectives
- 27. 2000 Tower Oaks Rockville, MD
- 28. 2000 Tower Oaks
- 30. Kroon Hall
- 31. Twelve West Double LEED Platinum Portland, OR
- 32. Twelve West
- 33. © 2013 Yudelson Associates
- 34. © 2013 Yudelson Associates Berlin, Germany DGNB Gold
- 35. © 2013 Yudelson Associates Männedorf, Switzerland Swiss Minergie Plus
- 36. © 2013 Yudelson Associates Dübendorf, Switzerland Swiss Minergie Plus
- 37. © 2013 Yudelson Associates Hoofddorp, The Netherlands LEED-CS Platinum
- 38. © 2013 Yudelson Associates
- 39. © 2013 Yudelson Associates Zero Energy Building Green Mark Platinum Singapore
- 40. © 2013 Yudelson Associates Pune, India LEED-NC Platinum GRIHA 5-star
- 41. © 2013 Yudelson Associates Perth, Australia 6-Star Green Star
- 42. © 2013 Yudelson Associates Tainan City, Taiwan LEED-NC Platinum EEWH Diamond
- 43. Where Do We Go From Here?
- 44. Where Do We Need To Get To?
- 45. © 2013 Yudelson Associates KfW Bank, Frankfurt, Germany
- 46. © 2013 Yudelson Associates Forum Chriesbach, Switzerland
- 47. © 2013 Yudelson Associates © 2013 Yudelson Associates
- 48. © 2013 Yudelson Associates
- 49. © 2013 Yudelson Associates * Edward Mazria, Architecture 2030 Founder http://therivardreport.com/conversation-architecture-2030-founder-ed-mazria/
- 50. If It Doesn’t Perform . . .
- 51. . . . It Can’t Be Green!
- 52. © 2013 Yudelson Associates
- 53. @jerryyudelson greenbuildconsult.com/blog © 2013 Yudelson Associates jerry@greenbuildconsult.com DOWNLOAD Slideshare.net/yudelson
Editor's Notes
- Green building vital in global carbon pictureGreen building growing rapidly in all sectorsGreen building business case is provenBUT, many green buildings are not performing as predictedBuilding energy & water performance reports vitally neededBuildings must eventually measuretotal carbon performanceZero-net-energy buildings feasible today
- By reducing energy and water use as well as transportation energy use
- More than 2 billion sq.ft. certified projects, more than 7 billion sq.ft. registered (maybe as much as 9 million sqft), as of September 1st.
- 14% reduction in CO2, 2025 vs. 2005NPV of green building: $650 billion in U.S.5x to 10x cost premium2020 Prediction: Green buildings 95% of new constructionGreen retrofits are 75% of all retrofits
- Financial/economic returnRisk mitigationMarketing/public relationsProductivity/health gainsRecruitment/retentionEnvironmental benefitsSustainability concerns
- If building energy use is this important to our collective future, why not know what’s going on?
- “What gets measured, gets managed”Without reports, we are flying blind/can’t fixWhy should governments put their faith in green building without performance reports?
- Here’s the problem: quite a few green building projects are not meeting their projections.
- The first major study of LEED projects gave this result.
- Issue: Average savings is 35% vs. standard (Kats)BUT, about 25% actually underperformOne LEED Platinum building:Modeled at 61% savingsPerforms at 48% savingsUnderperforming buildings hurt validity of green building premise
- EU Energy Performance in Buildings Directive: in force since 2010; here’s a UK example.
- Importance of embodied energy; forms a barrier to further carbon reductions
- Where SHOULD WE be aiming? I decided to find out!LEED Platinum (or equivalent)Built since 2003>50,000 sq.ft. (>5,000 sqm)Non-residential useMust provide energy data for one yearWater data, as available
- European stretch goal: 100 kWh/sqm/a PRIMARY energy useEuropean site use median: 135 kWh/sq.m.; 43,000 EUIU.S. Average: 400 kWh/m2/a (2003)50% better than average still not good enough!75% (or more) required2030 Challenge (next slide)Solon: 34,000 Btu/sq.ft./year energy use
- 2030 Challenge:DOE Annual Energy Outlook; Business As UsualAEO (expanded codes)AEO (best available technology)
- Here is a chart of actual performance of 15/19 buildings (no labs/hospitals)Median use = 139 kWh/sq.m. (EUI = 44,000)
- 2000 workers in bldg.; 700,000 sq.ft.Difficult climate:-35C to +35C (-31F – 95F)22-story solar chimney Passive solar designUrban regenerationGreen roofsPassive moisture control111 kWh/sqm/year;35,000 Btu/sq.ft./yr
- Zero Net Energy Buildings are Feasible today; here’s an example:35,000 Btu/sq.ft./year (measured 2011)
- 800 workers in bldg.; 360,000 sq.ft.Design/build; $254/sq.ft.Cold, dry climate - Passive solar design1600-kW Solar PVLabyrinth thermal massDaylighting designControl plug loads111 kWh/sqm/year;35,000 Btu/sq.ft./yr
- Integrated Design Process Critical to SuccessStarted with the Procurement ProcessSet BSAGs – Big, Scary, Audacious Goals
- 200,000-sq.ft., commercial officeVedic architectural designLEED-CS/CILong axis north/south, to maximize morning sunHVAC: Enthalpy wheel, frictionless chillerSpace H/C only 13% 41% less water use182 kWh/sq.m./year;58,000 Btu/sq.ft./yr
- 56,000 sq.ft. academic building; narrow floorplateCold winters, humid summers100-KW BIPV system; 16% of annual electricity4 solar DHW collectorsGeothermal wells; four at 400’ deepRainwater harvesting91 kWh/sq.m./year; 29,000 Btu/sq.ft./yr
- Double LEED Platinum, CS/CIFour stories commercial office, with17 stories rental apartmentsUnderfloor air w/chilled beamsDesigned to meet 2030 Challenge targets for 20104 turbines produce 1% of demandSolar water heaters provide 24%Operable windowsHarvested rainwater; 6500 sq.ft. green roofEnergy: 138 kWh/sq.m./year; 44,000 Btu/sq.ft.
- Here is a chart of actual performance of 15 buildings (no labs/hospitals)Median use = 135 kWh/sq.m. (EUI = 43,000)
- 75,000 sq.ft.98 kwh/sq.m.Waste heat recyclingNatural ventilation using atrium exhaustHeat recovery from computer serversWater-only (no chiller) cooling via trickle vents and heat exchangers
- 74 kWh/sqm/yearLake water heating/coolingDouble skin façadeNatural ventilation500 employees, 210,000 sq.ft.
- 92,000 sq.ft., 200677 kWp solar PV, 538 sq.ft. vacuum tube solar thermalPrimary/source energy demand: 103 kWh/sqm (with 23 kWh/sqm solar) with embodied energyAtrium buffer zoneActive louvers for shading
- Dutch Energy Rating: A+++GreenCalc score: 1,005185,000 sq.ft.100% sustainable energy on siteEnergy positive buildingBio-diesel 300kW CHP plantOffice: 114 kWh/sq.m./year
- Here is a chart of actual performance of 15 buildings (no labs/hospitals)Median use = 151 kWh/sq.m. (EUI = 44,000)
- 50,000 sq.ft. renovationOn the equatorFocus on daylighting without heat gain41 kWh/sq.m. building energy use45 kWh/sq.m. Solar production
- 816,000 sq.ft.59 kWh/sq.m.Corporate HQStack effect ventilationDaylighting integrationExterior louversVedic architecture
- 77,000 sq.ft.98 kWh/sq.m.6-Star Green Star Office Design5-star NABERSAlmost $3/sq.ft. annual energy cost savingsAutomatic louvers on west façadeActive chilled beamsComprehensive staff/facilities training
- National Cheng Kung University52,000 sq.ft.40 kWh/sq.m./year energy useForest land permanently set aside for meeting zero carbon goal
- Every building should be beautifulEvery building LEED PlatinumEvery building should aim at “BSAGs”Achieve measured 35 to 45 kBtu/sq.ft. (EUI) performanceDon’t settle for less!BE WILLING to SAY: If it doesn’t perform, it’s not a green building!
- 2030 Challenge:DOE Annual Energy Outlook; Business As UsualAEO (expanded codes)AEO (best available technology)
- 420,000 sq.ft. building89 kWh/sq.m. electricity use100 kWh/sq.m. total carbonBest tall building in Europe 2011
- This one progresses with clicks
- ARE YOU WILLING to SAY: If it doesn’t perform, it’s not a green building?