NRG 173: Carbon Footprints for Climate Action in Complex Organizations Spring Term 2011 Class 4 of 20 April 7, 2011 Kelly Hoell Good Company Eugene, OR

GOOD JOB! Everyone got 15 of ____________ 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. ________________________

overview DEQ Home LCA –review results, discuss implications –prepare for next week’s readings Homework for next time

learning objectives Get experience with looking at LCA results Understand and summarize main points Look at various ways of presenting information Discuss implications for various types of decision making

home LCA briefly summarize (cite charts to make the point) –main purpose? (particular angle (due to funder)?) –functional unit? –What is being studied here? What are the impact categories? –strategies called out in the report? –other points? sensitivity analysis and pie charts: if you remove a big slice, it all changes (including high-priority actions) (this is a general observation) comment on: –what to do with existing homes –implications for durability/longevity? –putting results in context of personal/HH consumption

home LCA fair game –If life-cycle stages are in rows and impacts are in columns, what are the rows and columns of the LCA? –What are the highest-impact items? Name a few. –Does the answer to that depend on who the actor is? Give examples. –To what extent and in what actions are GHG reduction and waste reduction correlated? (carbon goggles) –What major resource impacts associated with a home purchase and use are missing? where this material will/could resurface –your personal climate action plan –discussion of McKinsey’s Pathways –subsequent discussions of carbon goggles

Initial Study Question: Over the life of a home, how can you use fewer building materials or prevent waste? 7 initial study question and purpose Purpose: Support decisions by DEQ to form programs, policies, and actions to prevent waste generation from the residential building sector in a way that maximizes overall environmental benefits. Purpose: Support decisions by DEQ to form programs, policies, and actions to prevent waste generation from the residential building sector in a way that maximizes overall environmental benefits.

***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 8 the functional unit: standard home

I’ll give it to you blank next time and you can fill it in Note how hard it is to zero in on “before”, “during” and “after”

DEQ Home LCA: goal definition and scoping

activity 1: write out main lessons of study use your knowledge of the portion you read sum up primary lessons into a few bullets imagine you are responsible for: –policy decisions –certification implications –a home buying decision

Major take-aways? (green & dotted bars only)

Major take-aways? (yellow bars)

Major take-aways?

two views of US emissions implication: transform our economy * applied thinking

two views of US emissions implication: transform our economy * applied thinking

two views of US emissions implication: transform our economy * applied thinking “On a per-home basis, constructing smaller residences is among the most influential options for preventing waste and reducing a variety of environmental impacts, including Climate Change.”

two views of US emissions implication: transform our economy * applied thinking What are possible policy implications? What are possible certification implications? What are possible home buying implications?

example: building life-cycle BEFORE DURING AFTER

Which stage determines all decisions? BEFORE DURING AFTER

Which stage lasts the longest? BEFORE DURING AFTER

Which stage costs the most? BEFORE DURING AFTER

life-cycle cost for Medium Standard Home

“before”“during”“after” Version 1: life of the materials

“before”“during”“after” Take-away: what can you do to extend the life of the materials?

Version 2: life of the house “before”“during”“after”“before”“during”

Which stage emits the most GHGs? BEFORE DURING AFTER

climate impacts from Medium Standard Home

“during”: energy consumption “before”: materials “after”

30 GHGs from production, landfill and recycling

31 Impacts from materials (over 70 years)

Why are energy and climate impacts different for some materials and the same for others?

~80%~15% 33 life cycle GHG impacts

34 ~25% ~70% life cycle non-renewable energy impacts

apples, oranges, pineapples, sheep, toasters

activity 1 continued: New lessons to add? use your knowledge of the portion you read sum up primary lessons into a few bullets imagine you are responsible for: –policy decisions –certification implications –a home buying decision

Major take-aways?

I’ll give you the list next time and ask you to draw it on a linear scale

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

Feel free to contact me: Kelly Hoell (541) 341-GOOD (4663), ext. 217 Have a good weekend!