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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

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

slide2

The Carbon Quantification ProjectTimeline

Develop weatherization methodology

2008

2009

2010

2011

Weatherization methodology finalized

Verify and sell carbon emission reductions

slide3

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

essential steps to carbon savings
Essential Steps to Carbon Savings

Choose Category

Choose Approach

Calculate Emission Reductions

Monitor Emission Reductions

Prove Additionality

Performance Standard

four eligible categories
Four Eligible Categories
  • Category A: Whole house retrofit
  • Category B: Building envelope improvements
  • Category C: Appliance replacement
  • Category D: Mobile home replacement
slide8

Whole House

  • Category A:
  • Electric & fuel savings
  • Appliances
  • Central heating
  • Insulation
  • Air sealing
  • This category is not applicable in Maine under RGGI.
slide9

Building Envelope

  • Category B:
  • Fuel savings
  • Central heating
  • Insulation
  • Air sealing
  • The MaineHousing Project will use this category.

Pictures of houses

slide10

Category C:

  • Electricity savings
  • Appliance Replacement
  • This category is not applicable in Maine under RGGI.

Appliance Replacement

slide11

Category D:

  • Electricity & fuel savings
  • Only the fuel savings are eligible in Maine.

Mobile Home Replacement

essential steps to carbon savings1
Essential Steps to Carbon Savings

Choose Category

Choose Approach

Calculate Emission Reductions

Monitor Emission Reductions

Prove Additionality

Performance Standard

five approaches to calculate emission reductions
Five Approaches to Calculate Emission Reductions
  • Adjusted consumption
  • Pre-and post-retrofit audit
  • Control group
  • Deemed savings
  • Mobile homes replacement
slide14

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

essential steps to carbon savings2
Essential Steps to Carbon Savings

Choose Category

Choose Approach

Calculate Emission Reductions

Monitor Emissions Reductions

Prove Additionality

Performance Standard

slide16

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

slide17

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

essential steps to carbon savings3
Essential Steps to Carbon Savings

Choose Category

Choose Approach

Calculate Emission Reductions

Monitor Emission Reductions

Prove Additionality

Performance Standard

slide19

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

essential steps to carbon savings4
Essential Steps to Carbon Savings

Choose Category

Choose Approach

Calculate Emission Reductions

Monitor Emissions Reductions

Prove Additionality

Performance Standard

slide21

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

slide22
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

benefits of selling co2
Benefits of Selling CO2
  • Revenue for energy efficiency retrofits
  • Comprehensive, transparent, & verified data
    • Proof of public benefits
    • Managing projects
    • Tracking performance
    • Analysis and reports
steps to bring carbon savings to market
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