REDUCING CO2E IN THE BUILT ENVIRONMENT   San	  Francisco	  AIA	  Commi/ee	  on	  the	  Environment	     Presenters    Phil...
REDUCING CO2E IN THE BUILT ENVIRONMENT  Learning Objectives  Relationship between embodied carbon and operating   carbon...
SF	  AIA	  COTE	  	  Carbon	  Accoun+ng	  and	  Reduc+on	  in	        the	  Built	  Environment                   March,	 ...
WEBCORWebcor	  Builders	  Sustainability	  Ranking	  &	  Results	                                                 CONSULTI...
WEBCORConsump+on:	  It’s	  in	  the	  Buildings	                                      CONSULTING                          ...
WEBCORWebcor’s	  Scope	  1	  and	  2	  GHG	  Inventory	                                                 CONSULTING        ...
WEBCORWebcor	  Comprehensive	  CFP	  	                                                CONSULTING                          ...
WEBCORWhere’s	  the	  Carbon?	                                                                                            ...
WEBCORWhere’s	  the	  Carbon?	                                                                                            ...
WEBCORWhere’s	  the	  Carbon?	                                                                                            ...
WEBCORWebcor	  LEED	  Credit	  Frequency	  Matrix	     CONSULTING                                                         ...
WEBCORUnderstanding	  What	  Works	  &	  Where	                                                        CONSULTINGLEED	  Cr...
WEBCORPark	  Merced	  LEED-­‐ND	  Pla+num	                                                 CONSULTING                     ...
WEBCORWebcor	  Carbon	  Footprint	  Summaries	                                                CONSULTING                  ...
WEBCORGHG	  Emissions	  Fall	  into	  Three	  Categories	  	                        CONSULTING                            ...
WEBCORChallenges	  to	  Achieving	  Comprehensive	  Picture	                            CONSULTING                        ...
WEBCORChallenges	  to	  Achieving	  Comprehensive	  Picture	                                           CONSULTING         ...
WEBCORChallenges	  to	  Achieving	  Comprehensive	  Picture	                                                 CONSULTING   ...
WEBCORChallenges	  to	  Achieving	  Comprehensive	  Picture	                                                 CONSULTING   ...
WEBCORChallenges	  to	  Achieving	  Comprehensive	  Picture	                                                      CONSULTI...
WEBCORHybrid	  LCA	  Methodology	  Comparison	                CONSULTING                                                  ...
WEBCOR  Top-­‐Down	  Hybrid	  LCA	                                                                                        ...
WEBCORThe	  Science	  Behind	  CEDA	                                                                                      ...
WEBCORWorld	  Resource	  Ins+tute	  (WRI)	  Scope	  3	  Road-­‐test	                                           CONSULTING ...
WEBCORGreenhouse	  Gas	  (GHG)	  Impact	  Assessments	                               CONSULTING                           ...
WEBCORSF	  Public	  U+li+es	  Commission	  HQ	  –	  LEED	  Pla+num	            CONSULTING                                 ...
WEBCORWhere’s	  the	  Carbon?	                                                                                            ...
WEBCORSan	  Francisco	  Public	  U+li+es	  Commission	                       CONSULTING                                   ...
WEBCORWhere’s	  the	  Carbon?	                                                                                            ...
WEBCOREnvironmental	  Metrics	  for	  Strategic	  Decisions	                                                            CO...
WEBCORInnova+ve	  Structural	  Systems	  (new	  ways	  to	  build)	             CONSULTING                                ...
WEBCORNew	  Ways	  to	  Build	  With	  New	  Systems	                    CONSULTING                                       ...
WEBCORIden+fying	  Carbon	  Material	  Impact	     CONSULTING                                                     GROUP
WEBCORSFPUC	  –	  The	  Numbers	  That	  Count!	             CONSULTING                                                   ...
WEBCORSFPUC	  Carbon	  Data	                                                          CONSULTING                          ...
WEBCORNew	  Ways	  to	  Build	  with	  New	  Materials	                                           CONSULTING(making	  carb...
WEBCORVirtual	  Building	  (VB)	  &	  	                         CONSULTINGBuilding	  Informa+on	  Modeling	  (BIM)	       ...
WEBCORVirtual	  Building	  (VB)	  –	  Modeling	  Evolu+on	                                              CONSULTING        ...
WEBCORCalifornia	  Memorial	  Stadium	  –	  LEED	  Gold	                                 CONSULTING                       ...
WEBCORPark	  Merced	  –	  LEED	  ND	  Pla+num	                                                 CONSULTING                 ...
WEBCOR     San	  Francisco	  Transbay	  Transit	  Center	  -­‐	  LEED	  Gold	     CONSULTING                              ...
WEBCORGHG	  Performance	  Dashboard	     CONSULTING                                          GROUP
WEBCORGHG	  Pornolio	  Performance	  by	  Loca+on	  	     CONSULTING                                                      ...
WEBCORCarbon	  Leadership	  Forum	  (CLF)	                                                                                ...
WEBCORBuilds	  World	  Class	  Customers	  &	  Increases	  Leadership	  Technology	     CONSULTING                        ...
 	  NRMCA 	                 	         	          	  	  	  April	     	  	  USGBC:	  Federal	  Summit	  Washington	  DC 	  ...
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Reducing Embodied Carbon - COTE 3/8/2011

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Reducing Embodied Carbon in the built environment will play an increasingly important role in reducing overall carbon emissions over the next 20 years. For buildings, the focus has mostly been on reducing emissions by reducing the use of fossil fuels for operating energy. But we also need to reduce the carbon emissions embodied in the materials and resulting from the construction phase. As buildings become more efficient to operate, the embodied energy and emissions from materials and construction becomes an increasingly significant portion of total GHG emissions.

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Reducing Embodied Carbon - COTE 3/8/2011

  1. 1. REDUCING CO2E IN THE BUILT ENVIRONMENT San  Francisco  AIA  Commi/ee  on  the  Environment   Presenters Phil Williams – Webcor Builders David Mar – Tipping Mar, Structural Engineers Larry Strain – Siegel & Strain Architects
  2. 2. REDUCING CO2E IN THE BUILT ENVIRONMENT Learning Objectives  Relationship between embodied carbon and operating carbon  How to reduce embodied carbon – material selection, local resources, construction processes  Review existing resources for calculating embodied carbon.  The importance of embodied carbon and CO2 2030 reduction goals
  3. 3. SF  AIA  COTE    Carbon  Accoun+ng  and  Reduc+on  in   the  Built  Environment March,  2011  
  4. 4. WEBCORWebcor  Builders  Sustainability  Ranking  &  Results   CONSULTING GROUP •  ENR  #1  Green  Builder  by  volume:  2010  –  95%,  2009  –  90%,  2008  –  84%,   2007  –  79%   •  Largest  West  Coast  commercial  contractor  in  California  2009,  08,  07,  06   •  26.1  Million  square  feet  of  LEED  projects  in  California   •  $6.5  Billion  of  LEED  projects  in  California   •  First  General  Contractor  to  report  scope  1,2  and  3  Carbon  Emissions   •  Only  ConstrucZon  firm  to  parZcipate  in  the  World  Resources  InsZtute  (WRI)   Scope  3  Greenhouse  Gas  (GHG)  emission  Road  TesZng  program   SFPUC   CA  Academy  of  Sciences   Cal  Memorial  Stadium   Transbay  Transit  Center   LEED-­‐Pla+num   LEED-­‐Pla+num   LEED-­‐Gold   LEED-­‐Gold  
  5. 5. WEBCORConsump+on:  It’s  in  the  Buildings   CONSULTING GROUP Construc+on  Material   US  Energy  Consump+on   Energy  Consump+on   Materials   Industry 33% 12%   Transporta+on   28%   Buildings 39% Building  opera+on    =  39%   Construc+on  material    =  12%   Built  Environment    =  51%   **Source:  US  Energy  Informa+on  
  6. 6. WEBCORWebcor’s  Scope  1  and  2  GHG  Inventory   CONSULTING GROUP 1st  General  Contractor  to  report  Scopes  1  &  2  to  CA  Climate  Registry   GHG  Emissions  NOT  related  to   construc+on  
  7. 7. WEBCORWebcor  Comprehensive  CFP     CONSULTING GROUP Webcor’s Comprehensive Carbon Footprint 0.44% Job Related Costs of Construction Everything Else 99.63% =  0.44%   Scopes 1,2, & 3 Scope  1  &  2  
  8. 8. WEBCORWhere’s  the  Carbon?   CONSULTING GROUP TradiZonal  approximaZon  Material  Carbon  vs.  OperaZonal  Carbon   120%   100%   Total  Carbon  (%)   80%   60%   OperaZonal  Carbon   Embodied  Carbon   40%   20%   0%   10                       20                       30                       40                       50                       Building  Lifespan  (yrs)  
  9. 9. WEBCORWhere’s  the  Carbon?   CONSULTING GROUP TradiZonal  approximaZon  Material  Carbon  vs.  OperaZonal  Carbon   120%   100%   Total  Carbon  (%)   80%   Opera+onal  Carbon   60%   Embodied  Carbon   40%   20%   0%   10                       20                       30                       40                       50                       Building  Lifespan  (yrs)  
  10. 10. WEBCORWhere’s  the  Carbon?   CONSULTING GROUP 120%   Building  Materials   100%   Interiors  (Drywall,  carpet,  ceilings)   Total  Carbon  (%)   80%   Mechanical,  Electrical,  Plumbing   60%   Envelope  (Curtainwall,  glazing,  roof)   40%   20%   Structure  (Steel,  concrete)   0%   10                       20                       30                       40                       50                       Building  Lifespan  (yrs)  
  11. 11. WEBCORWebcor  LEED  Credit  Frequency  Matrix   CONSULTING GROUP
  12. 12. WEBCORUnderstanding  What  Works  &  Where   CONSULTINGLEED  Credit  Frequency  Matrix   GROUP Sustainable Site credit 4.3 – Alternative Transportation: Low-Emitting & Fuel-Efficient Vehicles 96% Water Efficiency credit 3.1 – Water Use Reduction 98% Energy & Atmosphere credit 3: Enhanced Commissioning 87% Materials & Resources credit 2.2: Construction Waste Management: Divert 75% 100% Indoor Environmental Quality credit 4.2: Low-Emitting Materials: Paints & Coatings 93% Innovation & Design credit 2: LEED AP 100%
  13. 13. WEBCORPark  Merced  LEED-­‐ND  Pla+num   CONSULTING GROUP •     Use  and  ConstrucZon  Phase  Carbon   AccounZng   •     195-­‐acre  development   •     Over  8,800  units   •     Mass-­‐transit  throughout  site   •     Self-­‐sustaining  development   •     LEED-­‐ND  PlaZnum  
  14. 14. WEBCORWebcor  Carbon  Footprint  Summaries   CONSULTING GROUPCalculations of Embodied Energy and LCA to find totalCarbon Footprint of a Building. Identifying the GlobalWarming Potential (GWP) based on amount and type of Comparison of the GWP (lbs of carbon per sqft) between materials used in the Building components. a Base Case building and a more Sustainably14   constructed Building known as the Green Case.
  15. 15. WEBCORGHG  Emissions  Fall  into  Three  Categories     CONSULTING GROUP SCOPE  3   SCOPE  1   SCOPE  3   (Indirect:  Upstream)   (Direct:  Company  Owned)   (Indirect:  Downstream)   SCOPE  2     (Indirect:  Electricity)  
  16. 16. WEBCORChallenges  to  Achieving  Comprehensive  Picture   CONSULTING GROUP The  current  paradigm  is  complicated,  Zme-­‐consuming,  incomplete…   Example…
  17. 17. WEBCORChallenges  to  Achieving  Comprehensive  Picture   CONSULTING GROUP Assumed  System  Boundary   Land  use   Coal  Mining   Oil   change   ExploraZon   Lime   Coal   Water   Refrigerant   Electricity   Trucking   Water   Cement   Sheet  Metal   HVAC   Concrete  
  18. 18. WEBCORChallenges  to  Achieving  Comprehensive  Picture   CONSULTING GROUP Cut-­‐off   Assumed  System  Boundary   Land  use   Coal  Mining   Oil   CPU   change   ExploraZon   Lime   Coal   Water   Refrigerant   Electricity   Trucking   Water   Cement   Sheet  Metal   HVAC   Concrete   Dyes   Blast  Furnace   Mining   Chemicals  
  19. 19. WEBCORChallenges  to  Achieving  Comprehensive  Picture   CONSULTING GROUP Capital  Goods   Infrastructure   Maintenance       Machinery   Equipment   Cut-­‐off   Assumed  System  Boundary   Land  use   Coal  Mining   Oil   CPU   change   ExploraZon   Lime   Coal   Water   Refrigerant   Electricity   Trucking   Water   Cement   Sheet  Metal   HVAC   Concrete   Dyes   Blast  Furnace   Mining   Chemicals  
  20. 20. WEBCORChallenges  to  Achieving  Comprehensive  Picture   CONSULTING GROUP Capital  Goods   General  Overhead   Infrastructure   Maintenance       Office  Paper   Machinery   Equipment   Corporate   Travel   Cut-­‐off   Assumed  System  Boundary   AdverZsing   Land  use   Coal  Mining   Oil   Building   Mining   change   ExploraZon   Maintenance   Lime   Coal   Water   Refrigerant   Electricity   Trucking   Water   Concrete   Sheet  Metal   HVAC   Ready  Mix   Dyes   Blast  Furnace   Sand   Chemicals  
  21. 21. WEBCORHybrid  LCA  Methodology  Comparison   CONSULTING GROUP Process   Input/Output   Ideal   Boeom  Up   Top  Down  
  22. 22. WEBCOR Top-­‐Down  Hybrid  LCA   CONSULTING GROUP Screening  Followed  by  Strategic  Refinement  and  Data  Collec:on   Scope  1   Subs+tu+on   GHG  Factors   Diesel 5,349 (gallons,  therms)   (kg-­‐CO2eq/gal)   kg CO2eqFuel  Purchases  ($)   Scope  3   GHG  Factors   893 (kg-­‐CO2eq/$)   Diesel kg CO2eq Scope  2  Electricity     Subs+tu+on   GHG  Factors   Facility B 1,583 (kWh)   (kg-­‐CO2eq/kWh)   kg CO2eq                    Purchases  ($)   Scope  3   98,232 FabricMaterials  &     GHG  Factors   kg CO2eq (kg-­‐CO2eq/$)                        Services  ($)   Insurance 23,115 kg CO2eq 93,210 Transit kg CO2eq
  23. 23. WEBCORThe  Science  Behind  CEDA   CONSULTING GROUP Core  Database  is  CEDA  (Comprehensive  Environmental  Data  Archive):   •  Derived  from  EPA  and  BEA  environmental  and  economic  databases   •  InternaZonally  peer  reviewed      -­‐  Used  by  Dept.  of  Commerce,  EPA,  NIST,  European  Commission,  BEES   •  Baseline  for  comprehensive    and  rapid  insights  into  all  supply  chain  Zers      -­‐  A  unique  commodity  based  I/0  structure   •  Includes:      -­‐  GHG  Emissions      -­‐  Resource  consumpZon  (including:  water,  land  &  energy  use)              -­‐  Toxins;        -­‐  PM  Emissions;        -­‐  Ozone  DepleZng  Substances;        -­‐  Nutrient  Emissions;                -­‐  Waste  GeneraZon  
  24. 24. WEBCORWorld  Resource  Ins+tute  (WRI)  Scope  3  Road-­‐test   CONSULTING GROUP•     70+  companies  parZcipated  in  road-­‐test  •     ConstrucZon  Industry  road-­‐test  required  new  rules:   -­‐    Building  use  and  end-­‐of-­‐life  included  for  “key  turnover”  in    given  year   -­‐    All  construcZon  electricity  included  (even  if  not  paid  for)   -­‐    50  year  building  lifespan   -­‐    Only  representaZon  from  the  ConstrucZon  Industry  
  25. 25. WEBCORGreenhouse  Gas  (GHG)  Impact  Assessments   CONSULTING GROUPUSGBC  and  GHG   –  Pilot  Carbon/GHG  credit  for  scope  3   •  LEED  2012  to  include  Carbon/GHG   •  RaZng  system  to  evaluate  GHG  throughout  MR  credit  secZons   –  Process  GHG  prescripZve  tools:  Athena,  BEES  (Building  for  Economic   and  Environmental  Sustainability),  GaBi     –  Input-­‐Output  Hybrid  performance  based  tool:  Webcor/Climate  Earth  
  26. 26. WEBCORSF  Public  U+li+es  Commission  HQ  –  LEED  Pla+num   CONSULTING GROUP To  the  best  of  our   knowledge,  SFPUC  is  the   1st  US  project  requiring   Carbon  AccounZng   (GHG)  for  construcZon   materials  and  related   acZviZes.  
  27. 27. WEBCORWhere’s  the  Carbon?   CONSULTING GROUP Typical  Embodied  Carbon  vs.  OperaZonal  Carbon   120%   100%   Total  Carbon  (%)   80%   60%   OperaZonal  Carbon   Embodied  Carbon   40%   20%   0%   10                       20                       30                       40                       50                       Building  Lifespan  (yrs)  
  28. 28. WEBCORSan  Francisco  Public  U+li+es  Commission   CONSULTING GROUP •  Raised  Access  Floors   •  LighZng  Controls   •  Operable  windows     •  On-­‐Site  Power  GeneraZon   –  Wind     –  Photo-­‐Voltaic  Panels   •  60%  Energy  ReducZon   •  40%  On-­‐site  GeneraZon   •  Net-­‐zero  energy  building   28  
  29. 29. WEBCORWhere’s  the  Carbon?   CONSULTING GROUP SFPUC  Embodied  Carbon  vs.  OperaZonal  Carbon   120%   100%   Total  Carbon  (%)   80%   Opera+onal  Carbon   60%   Embodied  Carbon   40%   20%   0%   10                       20                       30                       40                       50                       Building  Lifespan  (yrs)  
  30. 30. WEBCOREnvironmental  Metrics  for  Strategic  Decisions   CONSULTING GROUP Builder:                             cost  and  schedule       Engineer:   Marketplace:         specifica+on  and   means,  methods  and   requirements   products   Carbon  Account:   methodology  and   compliance  
  31. 31. WEBCORInnova+ve  Structural  Systems  (new  ways  to  build)   CONSULTING GROUP Core  wall  structures   Core  wall  revealing  verZcal  PT   cable  orientaZon  
  32. 32. WEBCORNew  Ways  to  Build  With  New  Systems   CONSULTING GROUP •  Core  walls  with   verZcal  PT   systems   •  Superior   seismic   resistance   •  Reduced  costs   •  Reduced   material   •  Reduced   carbon  
  33. 33. WEBCORIden+fying  Carbon  Material  Impact   CONSULTING GROUP
  34. 34. WEBCORSFPUC  –  The  Numbers  That  Count!   CONSULTING GROUP Total Estimated lbs CO2 eq Reduction 7,363,042 Total Estimated tons CO2 eq Reduction 3,682
  35. 35. WEBCORSFPUC  Carbon  Data   CONSULTING GROUP Structural  Concrete  Material  Impact   14.99M  lbs  CO2   CO2  reduced  by  49%   7.36M   7.63M   lbs  CO2   lbs  CO2   Tradi+onal  Carbon  Concrete  Design   Low  Carbon  Concrete  Design   Carbon  Savings  
  36. 36. WEBCORNew  Ways  to  Build  with  New  Materials   CONSULTING(making  carbon  part  of  the  equa+on)   GROUP •  High-­‐performance   concrete  structure   •  40%  less  carbon   from  rebar   •  49%  less  carbon   from  concrete   •  63%  less  carbon   from  framing  and   drywall   **Note:  Equivalent  to  annual  electricity  and  natural  gas  for  ~600  PG&E  homes.  
  37. 37. WEBCORVirtual  Building  (VB)  &     CONSULTINGBuilding  Informa+on  Modeling  (BIM)   GROUPEnables  Integrated  Approach:  •  5D  Cost  Analysis  Modeling  •  4D  Schedule  Process  Modeling  •  3D  Product  Quality  Modeling  •  Sustainability  Modeling  (Energy  &  Carbon)  •  As-­‐Built  FaciliZes  Management  
  38. 38. WEBCORVirtual  Building  (VB)  –  Modeling  Evolu+on   CONSULTING GROUPMul+dimensional  BIM  -­‐  unlimited  data  capacity   Schedule   Concrete Column in the model Es+mate   Energy  Modeling  Data   Carbon  &  GHG  Accoun+ng   •   MulZdimensional  –  Features   -­‐  Schedule   -­‐  EsZmate   -­‐  Sustainability   -­‐  Energy  Modeling   -­‐  Carbon  AccounZng   •   MulZdimensional  -­‐  Benefits   -­‐  VisualizaZon   -­‐  Be/er  planning   -­‐  CommunicaZon   -­‐  Be/er  execuZon   -­‐  Time  savings   -­‐  More  value  
  39. 39. WEBCORCalifornia  Memorial  Stadium  –  LEED  Gold   CONSULTING GROUP •     Siesmic  retrofit   •     New  structural  components   •     Divided  by  Hayward  fault  line   •     Compressed  construcZon   sequence:  Dec  2010  –  July  2012   •   Enterprise  Carbon  AccounZng    for   ConstrucZon  materials  and   acZviZes      
  40. 40. WEBCORPark  Merced  –  LEED  ND  Pla+num   CONSULTING GROUP •     Use  and  ConstrucZon  Phase  Carbon   AccounZng   •     195-­‐acre  development   •     Over  8,800  units   •     Mass-­‐transit  throughout  site   •     Self-­‐sustaining  development   •     LEED-­‐ND  PlaZnum  
  41. 41. WEBCOR San  Francisco  Transbay  Transit  Center  -­‐  LEED  Gold   CONSULTING GROUP•  “Grand  Central  StaZon  of  the   West”  •  $4  billion  program  to  replace   exisZng  terminal  with  a  modern   regional  transit  hub  •  Five-­‐story  Transit  Center  with  one   above-­‐grade  bus  level,  ground-­‐ floor,  concourse,  and  two  below-­‐ grade  rail  levels  serving  Caltrain   and  the  future  California  High   Speed  Rail.  It  will  also  include  a   5.4  acre  public  roouop  park.    •  LEED-­‐NC  Gold  
  42. 42. WEBCORGHG  Performance  Dashboard   CONSULTING GROUP
  43. 43. WEBCORGHG  Pornolio  Performance  by  Loca+on     CONSULTING GROUP
  44. 44. WEBCORCarbon  Leadership  Forum  (CLF)   CONSULTING GROUP•     Chair:  Kate  Simonen,  Assistant  Professor  of  Architecture,  College  of  Built  Environments  •     IniZal  Members:   Webcor      Climate  Earth  Design  Avenues   L+U  Architects    EHDD  Architects  Eco  Building  Network   Tipping  Mar    MKA        Serious  Materials     Central  Concrete      Navitas  Capital  •     Partnerships  and  collaboraZon  between:  501c3  non-­‐profit,  research,  &  for-­‐profit  organizaZons   Website:  www.carbonleadershipforum.org  
  45. 45. WEBCORBuilds  World  Class  Customers  &  Increases  Leadership  Technology   CONSULTING GROUP Research   Standards   Visionary  Technology   Sustained  Leadership   Industry  
  46. 46.    NRMCA            April      USGBC:  Federal  Summit  Washington  DC      May      World  Resource  Ins+tute        June            GSA  Region  IX                  July            Carbon  Leadership  Forum              Aug        EPA  Region  IX  August          Sept        ACI  Na+onal  Mtg            Oct        USGBC  GreenBuild            Nov   SF  AIA  COTE    2011  

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