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Jo-Ann L. Choate, MaineHousing March 1, 2012

For National Association for State Community Services Programs Turning Carbon Savings from Residential Energy Efficiency Retrofits into a New Revenue Stream. Jo-Ann L. Choate, MaineHousing March 1, 2012. The Carbon Quantification Project Timeline. Develop weatherization methodology. 2008.

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Jo-Ann L. Choate, MaineHousing March 1, 2012

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  1. For National Association for State Community Services ProgramsTurning Carbon Savings from Residential Energy Efficiency Retrofits into a New Revenue Stream Jo-Ann L. Choate, MaineHousing March 1, 2012

  2. The Carbon Quantification ProjectTimeline Develop weatherization methodology 2008 2009 2010 2011 Weatherization methodology finalized Verify and sell carbon emission reductions

  3. Carbon Quantification Project: Here’s How It Works CarbonEmissionReduction (ERs) Measured bya validatedmethodology Verified by an accreditedthird partyverifier Weatherize A Home Energy Data Repository Start Here Recorded ina CarbonRegistry Weatherize more homes ERs soldin the market Buyers Purchase ERs

  4. Growth of the Carbon Market

  5. Essential Steps to Carbon Savings

  6. Essential Steps to Carbon Savings Choose Category Choose Approach Calculate Emission Reductions Monitor Emission Reductions Prove Additionality Performance Standard

  7. Four Eligible Categories • Category A: Whole house retrofit • Category B: Building envelope improvements • Category C: Appliance replacement • Category D: Mobile home replacement

  8. Whole House • Category A: • Electric & fuel savings • Appliances • Central heating • Insulation • Air sealing • This category is not applicable in Maine under RGGI.

  9. Building Envelope • Category B: • Fuel savings • Central heating • Insulation • Air sealing • The MaineHousing Project will use this category. Pictures of houses

  10. Category C: • Electricity savings • Appliance Replacement • This category is not applicable in Maine under RGGI. Appliance Replacement

  11. Category D: • Electricity & fuel savings • Only the fuel savings are eligible in Maine. Mobile Home Replacement

  12. Essential Steps to Carbon Savings Choose Category Choose Approach Calculate Emission Reductions Monitor Emission Reductions Prove Additionality Performance Standard

  13. Five Approaches to Calculate Emission Reductions • Adjusted consumption • Pre-and post-retrofit audit • Control group • Deemed savings • Mobile homes replacement

  14. Categories Approaches Whole House Retrofit 1. Adjusted Consumption 2. Pre- and Post-retrofit audit Building Envelope 3. Control Group Appliance Replacement 4. Deemed Savings 1. Adjusted Consumption Mobile Home Replacement 3. Control Group 5. Mobile Home

  15. Essential Steps to Carbon Savings Choose Category Choose Approach Calculate Emission Reductions Monitor Emissions Reductions Prove Additionality Performance Standard

  16. Baseline: Energy consumed by a given dwelling for one year prior to project implementation. Emission reduction calculations are measured from the baseline. Baseline Fuel Consumption Calculated Emission Reductions Project Year Fuel Consumption

  17. Emission reductions = y = Year i = Dwelling J = Fuel type I = # of Dwellings HDDCFy = Heating degree days correction factor Fb,i,j= Baseline consumption year prior Fp,y,i,j= Project consumption in year y following Calj= Calorific value of fuel FCO2,j = CO2 emissions factor of fuel Ly= Leakage

  18. Essential Steps to Carbon Savings Choose Category Choose Approach Calculate Emission Reductions Monitor Emission Reductions Prove Additionality Performance Standard

  19. Owners Wx Contractor Pre Retrofit Energy Audit Post Retrofit Energy Audit Prioritized WxTasks ECOS Detailed Work Order Energy Conservation Online System EDR Energy Data Repository Policy Guidance Detailed Reports Statistical Analysis

  20. Essential Steps to Carbon Savings Choose Category Choose Approach Calculate Emission Reductions Monitor Emissions Reductions Prove Additionality Performance Standard

  21. A Ton of CO2 must be Additional in order to be sold Additionality: But for the Project (that weatherizes homes) the energy savings would not have happened

  22. The performance standard is a benchmark above which energy improvements in the home are not business as usual Performance Standard Benchmark Energy savings in NON-Weatherized Homes Energy savings in Weatherized Homes -4% -2% 0% 4% 15% 24% 50% Percent Savings

  23. Benefits of Selling CO2 • Revenue for energy efficiency retrofits • Comprehensive, transparent, & verified data • Proof of public benefits • Managing projects • Tracking performance • Analysis and reports

  24. Steps to Bring Carbon Savings to Market • Scope and Plan Project • Identify and Manage Carbon Data • Write Project Description • Validate Project Description • Verify Offsets • Register and Sell Offsets

  25. Questions

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