Home MPG:Adding an Energy Performance Score

to the Mass Save® Home Energy Services Program

ACI New EnglandOctober 17, 2012

Sam NutterN.E. Business Development Director

Conservation Services Group (CSG)• Founded in 1984• Nonprofit corporation• ~800 staff responsible for 7,000+ field jobs

nationwide• Over 3 million homes and facilities served• Manage the delivery of over $250 million in energy

efficiency and renewable energy investments and projects annually

Talking Points

1. Mass Save® Home Energy Services

2. Integrating the new CSG Energy Performance Score (EPS)

3. Data collection, tracking and reporting

4. New incentives in the “Home MPG” initiative

1. Mass Save® Home Energy Services

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www.masssave.com/residential

Mass Save® Home Energy Services (HES)

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Home Energy Services (HES) is available to the non-low income residential customers of the sponsoring Program Administrators.

HES is for residential buildings with 1-4 units that are notpart of a multi-family complex.

Mass Save® Home Energy Services (HES)

• 4 Lead Vendors Conservation Services Group Honeywell Utility Services RISE Engineering Center for EcoTechnology

• 100 +/- Independent Installation Contractors

• 20 +/- Home Performance Contractors

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Mass Save® Home Energy Services (HES)Program Offerings

• No-cost Home Energy Assessment (HEA) including:CFLs7-day digital programmable thermostatsLow flow showerheads and faucet aerators

• No-cost air sealing where applicable & recommended• Insulation – instant rebates up to $2,000• Energy efficient refrigerator rebates• High efficiency heating system and hot water heater rebates• High efficiency A/C QIV services and rebates• HEAT Loan – 0% interest; terms up to 7 years

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Standard Mass Save HES report produced statewide by CSG for National Grid customers

Includes list of items installed during HEA and detailed future recommendations

2. Integrating the new CSG Energy Performance Score(EPS)

Why Do We Need an EPS?

• Test consumer acceptance of new format• EPS provides additional information for consumers

Compares their home to local averages Shows before and after ratings – goal setting Provides environmental information

• Test consumer understanding of principles presented

Energy Performance Score (EPS)

Energy Performance Score (EPS)• Million btu of energy consumed by house

– Million btu AKA: Mbtu or mmbtu – Electric and fossil fuel treated as equal (site basis)– As estimated by the model (not from billing)

• “Asset-based”– Eliminate occupancy factors– Standard assumptions about thermostat settings,

appliance/lighting use, etc.

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Carbon Footprint

Carbon Footprint

• Based on state-average carbon emissions • Major fuel(s) and electricity in house model• Source: EIA/DOE (eGrid database)

– By eGrid subregion

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Integrating the EPS Scorecard• Why not use the Earth Advantage EPS?

Both modeling tools produce similar results, but…• Mass Save® HES provides “turnkey” services:

Energy Assessment report Customer contract for weatherization work Work orders and change orders for contractors Inspection reports, quality assurance tracking Invoices, instant rebates, and customer receipts Data reporting for National Grid and MA DOER

• Easier to add EPS to our system18

3. Data Collection, Tracking and Reporting

Data, Data, ….

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• Reporting requirements for MA• Transmitted monthly• 99 possible data fields per customer• Use CSG’s EnergyMeasure®

…..and MORE Data!

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U.S. DOE reporting requirements • Different than MA reporting• 215 line spreadsheet

each line = data field despite length, not enough flexibility

for complex homes (ex. multiple attics)• 1 column per customer• Requires new data transfer protocol• Some data fields require translation

(inches vs. R-value) or manual data entry

4. New Incentives in the“Home MPG” initiative

New Home MPG Deep Retrofit IncentivesEE Measure Mass Save® HES rebate Home MPG adder

Insulation 75% up to $2000 cap 75% up to $1750

Propane Furnace with ECM Blower, 95% AFUE

$500 $500

Propane Hot Water Boiler, 90% AFUE

$1000 $1000

Ductless mini split, min EER 12, min HSPF 8.5

$500 $500

Air source heat pumps, EER 12.5, HSPF 8.5  

$300 $300

Air source heat pump water heaters, EF 2.3 or greater, 10 year warranty

$1000 $1000

• Note: Terms & conditions apply; must be pre-approved• Expected launch November 2012; Home MPG towns only!

Summary • Mass Save® is a well established, long running

program with existing systems and contractors• Integrating an EPS into an existing program can be

challenging (training; time to serve; communication)• Data integration of a new system adds complexity• Home MPG leverages significant federal funding to

experiment with several unique delivery features including the EPS, widespread infrared imaging, and bonus incentives designed to encourage deeper retrofits and greater savings per home.

Thank you for your time

and attention!

Sam NutterN.E. Business Development Director

Conservation Services Group