NRG 173: Carbon Footprints for Climate Action in Complex Organizations Spring Term 2011 Class 3 of 20 April 5, 2011 Kelly Hoell Good Company Eugene, OR

overview catch up from last week –activity: US energy (practice logical thinking) –review pop quiz –continue discussion of GHG inventory boundaries LCA introduction –introduction to life-cycle thinking –LCA vs. GHG inventory – what is different? –components of an LCA DEQ Home LCA –audience, purpose, goals, units Homework for next time

learning objectives this session (Session 3) –Review GHG accounting framework and boundaries –Get our hands dirty with a real LCA. –Understand the concept of “functional unit” in the DEQ example (and beyond). for next time (Sessions 4, 5, and 6) –More examples, more discussion of relevance. –Discuss the implications of “functional unit” selection on results for the examples to date. –Decide if the examples hold insights for other contexts. –Discuss the implications of the examples for personal, policy, and corporate decision making.

please memorize this for test at 2 PM activity: using logic, intuition, and knowledge

overview of US emissions nomenclature

please memorize this for test at 2 PM activity: using logic, intuition, and knowledge

pop quiz! 1.____________SF 6 2. ___________ 3._____________HFCsPFCs SCOPE 1 4. Circle one: Direct/Indirect SCOPE 3 6. Circle one: Direct/Indirect SCOPE 2 5. Circle one: Direct/Indirect 7. _______________ 8. _______________ 9. _____________________ 10. ________________________ 11. ________________________ 12. ________________________ 13. ________________________ 14. ________________________ 15. ________________________

GHG accounting 101: Scopes 1, 2 and 3 Source: World Resources Institute

conducting a GHG Inventory – an overview 1.identify relevant protocols and tools 2.set inventory boundaries 3.collect data 4.revisit inventory boundaries 5.finish data collection 6.calculate emissions 7.write report 8.share results with stakeholders 9.develop climate action plan (Plan as much as reasonable. Be ready for loops.)

typical emission sources building-based energy use (utilities) –electricity –natural gas –other fuels (propane, fuel oil, coal, etc.) refrigerants (“fugitive emissions”) transportation –fuel use for business travel (air, car, bus, train) –fuel use for employee commute (single occupancy vehicle, carpool, mass transport) –distribution embodied GHGs in supply chain waste stream land use (on a large scale)

setting boundaries: think emissions sources… Source: World Resources Institute

…and locations / facility types

activity: business activity and emissions Emissions Category ActivitiesSense of Scale? building energy transportation waste disposal ____________

Activity: Good Company as an example Emissions Category ActivitiesSense of Scale? building energy natural gas electricity small transportation rental cars employee-owned air travel medium small large waste disposal office waste small refrigerants HVAC system small purchasing supply chain medium

trade-offs in setting boundaries

activity: boundaries and data Availability- Control Matrix strong control some control, maybe strong influence little or no control, maybe some influence complete and comprehensive data available data available with some effort, or incompletely not much data available, or only at great cost/effort

Life-cycle stages: Construction Use & maintenance Demolition Definition: assessment of a building’s environmental, social and economic impacts across every stage of the building life cycle life-cycle analysis life-cycle thinking

life-cycle analysis Definition: assessment of a building’s environmental, social and economic impacts across every stage of the building life cycle Life-cycle stages: “Before” –resource extraction –raw material processing –manufacturing –distribution –construction “During” –inputs for use –maintenance “After” –disposal / landfill –reuse –recycling or composting life-cycle thinking

example: building life-cycle life-cycle thinking

example: building life-cycle life-cycle thinking BEFORE DURING AFTER

GHG accounting 101: Scopes 1, 2 and 3 Source: World Resources Institute

GHG accounting using life-cycle thinking? Source: World Resources Institute boundaries

LCA process goal definition and scoping –define and describe the product, process, or activity –establish context: ID boundaries and impacts to assess inventory analysis –identify and quantify environmental releases for impact categories impact assessment –assess effects of environmental releases interpretation –evaluate results and make decisions with an understanding of sources of uncertainty and assumptions

LCA process: Questions to ask 1.Define the Goal(s) of the Project 2.Determine What Type of Information Is Needed to Inform the Decision-Makers 3.Determine the Required Specificity 4.Determine How the Data Should Be Organized and the Results Displayed 5.Define the Scope of the Study 6.Determine the Ground Rules for Performing the Work

DEQ Home LCA: goal definition and scoping context?

2009 Oregon Waste Generation = 4.6 million tons 20-30% of disposed waste is construction debris 26 waste disposal and recovery Source: OR DEQ, Jordan Palmeri slide

DEQ Home LCA: goal definition and scoping context? purpose?

Over the life of a home, how can you use fewer building materials or prevent waste? 28 initial study question Source: OR DEQ, Jordan Palmeri slide

DEQ Home LCA: goal definition and scoping context? purpose? audience?

DEQ Home LCA: goal definition and scoping context? purpose? audience? potential actions assessed?

DEQ Home LCA: goal definition and scoping

context? purpose? audience? potential actions assessed? impacts assessed?

impacts assessed GHG emissions non-renewable energy costs ecosystem quality resource depletion human health carcinogens non-carcinogen toxics ozone depletion acidification eutrophication

DEQ Home LCA: goal definition and scoping context? purpose? audience? potential actions assessed? impacts assessed? study boundaries?

DEQ Home LCA: goal definition and scoping context? purpose? audience? potential actions assessed? impacts assessed? study boundaries? functional unit?

***Lifetime = 70 years***  2262 square feet  3 bedrooms  2 baths  2 car garage  2.5 occupants  “move-in ready”  includes original and replacement materials  vinyl windows  asphalt roof  gas furnace, no A/C  designed to 2008 Oregon energy code  energy use modeled for Portland, OR climate 36 the functional unit: standard home

homework keep reading DEQ Home LCA –be prepared to discuss results start your personal carbon footprint and climate action plan

pop quiz (take two)! 1.____________ SF 6 2. ___________ 3._____________ HFCs PFCs SCOPE 1 4. Circle one: Direct/Indirect SCOPE 3 6. Circle one: Direct/Indirect SCOPE 2 5. Circle one: Direct/Indirect 7. _______________ 8. _______________ 9. _____________________ 10. ________________________ 11. ________________________ 12. ________________________ 13. ________________________ 14. ________________________ 15. ________________________

Feel free to contact me: Kelly Hoell (541) 341-GOOD (4663), ext. 217 See you Thursday.