New Measure Proposal Review and Prioritization

Jennifer Anziano, Adam Hadley, Mohit Singh-Chhabra, Christian Douglass

Regional Technical ForumFebruary 18, 2015

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Overview

Today, we are seeking RTF feedback on our proposed path and prioritization of new measure proposals• Prioritization criteria• Suite of existing measures• New measure proposals

– Overview of measure and plan for next steps

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Prioritization Criteria

Seeking to weigh these criteria to inform relative priority of new measure development, in light of existing measure work:• Regional interest• Potential regional impact• Ideal timeline and how this fits into our

existing work• RTF resource requirements

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Existing Measures

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New Measure Proposals

• Residential Low E Storm Windows• Residential Duct Insulation• Residential Prescriptive Air Sealing• Non-Residential Lighting Code Compliance• Next Step Homes Standard Protocol

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Residential Low E Storm Windows

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Measure Background

• Measure Name: Low E Storm Windows• Measure Category: Proven or Provisional

UES• Measure Sector: Residential• End-Use: Single Family, Existing• Proposing Party: BPA, PNNL• Interested Party: BPA• Regional Potential: Medium/High

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Measure Development History, Timeline

• Measure Specification: Install low-e storm window over ___ type of window.

• Savings Estimation Procedure: Calibrated Engineering (SEEM)

• Jan 2015– BPA submits measure request and asks for RTF decision by

June or July• Proposed Next Steps

– BPA to contract with PNNL, set up spec and u-value outputs

– RTF CAT to estimate savings and put together measure proposal

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Residential Duct Insulation

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Measure Background

• Measure Name: Duct Insulation• Measure Category: Proven UES• Measure Sector: Residential • End-Use: Single Family, Existing• Proposing Party: BPA, SBW• Interested Party: BPA• Regional Potential: Low/Medium

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Measure Development History, Timeline

• Measure Specification: Insulate to R-11 ducts with existing insulation of R-2 or less, located in unconditioned space. (This is a summary; a detailed specification document will accompany the measure proposal.)

• Savings Estimation Procedure: Calibrated Engineering (SEEM, with measure interactions)

• February 2014– Complete package submitted to RTF CAT for review.– Decision to wait until RTF finalizes its SEEM96 calibration and measure

interaction analysis (Option 3).• December 2014

– RTF finalized its SEEM analysis for SF homes (Wx and HVAC)…finally• Next Steps

– Placeholders were included in the SEEM96 (Option 3) analysis for duct insulation, so assembly of a final proposal package should be straightforward

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Residential Prescriptive Air Sealing

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Measure Background

• Measure Name: Prescriptive Air Sealing• Measure Category: ??, UES• Measure Sector: Residential• End-Use: SF and MH, Existing• Proposing Party: SBW, BPA• Interested Party: BPA• Regional Potential: Low/Medium

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Measure Overview

• Measure Specification: Prescriptive air sealing for individual home components (attic, window, floor) to support existing RTF single family and manufactured home weatherization insulation measures.

• Savings Estimation Procedure: Calibrated Engineering (SEEM, with measure interactions)

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Measure Development History, Timeline• February 2014

– Research plan submitted to RTF CAT for review• 3 options considered, but no practical solution Identified• Proposal at the time was to estimate savings using SEEM, but make an estimate on

the leakage reduction– CAT was uncomfortable with the “guess” and suggested looking at the results of the ETO study

(prescriptive attic air sealing) – not available at the time

– Decision to wait until RTF finalizes its SEEM96 calibration and measure interaction analysis (Option 3)

• December 2014– RTF finalized its SEEM analysis for SF homes (Wx and HVAC)…finally

• Next Steps– Savings were estimated in SEEM96 (Option 3) for air sealing

(kWh/CFM50reduction); the primary missing piece is an estimate of CFM50 reduction

– ETO study: Projects completed end of 2014; data available this Spring

• Also…

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More History

• February 2012– The RTF adopted the “Residential

Weatherization Research Data Collection Plan for Determining the Impact of Prescriptive Air Sealing on Ventilation and Infiltration Resulting from the Implementation of the RTF Residential Weatherization Measure Specifications”

Scope: “This research plan, approved by the RTF at the February 14, 2012 meeting, outlines data collection and analysis intended to examine the impact of implementing weatherization measures meeting the RTF weatherization specifications. This will be a one-year data collection effort commencing once RTF Residential Weatherization Specifications are adopted by regional utilities and implementation has begun. It calls for pre-and post-weatherization project blower door tests and other basic house characteristic data collection…”

• To Date: We haven’t heard of any data collection/study

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Non-Residential Lighting Code Compliance

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Measure Background

• Measure Name: Non-Residential Lighting Code Compliance

• Estimation Method: Provisional Standard Protocol

• Measure Sector: Commercial• End-Use: Lighting• Proposing Party: RTF(?)• Interested Party: Unknown• Regional Potential: Low/Medium

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Proposed Standard Protocol Overview

• A Non-Res Lighting Provisional Standard Protocol for projects that trigger a “Lighting Power Allowance (LPA) or Lighting Power Density (LPD) requirement in the applicable building code”1

• This definition includes the following scenarios:– A new building or new addition to an existing building

– A change in Building Use Area as defined by building code

– A “major renovation”, as defined in the Protocol document

• Savings are computed relative to the LPA required by code1 From draft provisional protocol document, “Draft Provisional Protocol for Non-Residential Lighting with Current Practice Baseline,” July 23, 2013.

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Provisional Protocol Development Timeline

• From past subcommittee presentation, it appears that a single lighting protocol was split into two separate protocols in 2013:– “Retrofit” (mostly pre-conditions baseline)

– “Lighting Code Compliance”1 (current practice baseline)

• Since then, “Retrofit” has been the primary focus

• Questions for the RTF:– Are there subcommittee members who recall why the code

compliance protocol stalled?

– Is this still a feasible protocol to pursue, and is there interest in bringing this back under development?

1 Also referred to as “LPA Required”

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Next Step Homes Standard Protocol

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Measure Background

• Measure Name: Next Step Homes

• Measure Category: Provisional Standard Protocol (??)

• Measure Sector: Residential (SF)

• End-Use: New Construction

• Proposing Party: NEEA, CLEAResult

• Interested Party: NEEA

• Regional Potential: Unknown

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Proposed Standard Protocol Overview• Objective: To test the feasibility of estimating energy savings for Next

Step Homes (NSH) using a Northwest specific version of REMRate

– NSH will employ a suite of new construction whole building measures to achieve savings target

• The proposed protocol will test REMRate by comparing REMRate energy consumption and resulting savings estimates through calibrated SEEM and primary data collection

– The NSH pilot projects provide a unique opportunity to collect data on 38 new construction homes and test the feasibility of using REMRate for savings estimation

– Possible access to 500+ REMRate files and corresponding billing data from ETO

– The exact methodology will evolve as NEEA, CLEAResult and CAT work to develop the provisional protocol

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Proposed Standard Protocol Overview: Contd.

An approved protocol may enable Northwest REMRate with standardized input assumptions to be used as an RTF new construction energy savings estimation tool in the region.

– REMRate is a popular tool in the construction and energy rating industry

– NEEA seeks to leverage this market facing tool to streamline utility involvement in new construction and ensure savings claimed by market actors are real

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Provisional Protocol Development Timeline

• Proposed provisional protocol to be brought to the RTF in December, 2015– This protocol development process will require a

technical subcommittee

• NEEA will provide necessary resources to develop the protocol and the research plan– NEEA funders have expressed interest and

willingness to staff a technical subcommittee

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Staff Feedback

• Significant resources will be required to:– Calibrate heating energy consumption estimate from

chosen software– Review and (possibly) improve savings algorithms for

conventional measures (insulation, infiltration etc.) and non-conventional measures (e.g. radiant heating floors)

– Develop standard protocol and research plan• Other options might be less resource intensive

– Potential path: Estimate a coarse adjustment factor for REMRate using billing data

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New Measure Summary

MeasureRegional Interest

Regional Impact Target Date

Resource Requirements

Relative Priority

Residential Low E Storm Windows BPA Med/High June 2015 Low/Med High

Residential Duct Insulation BPA Low/Med unknown Low/Med Medium

Residential Prescriptive Air Sealing BPA Low/Med unknown Medium Medium

Non-Residential Lighting Code Compliance unknown Low/Med unknown Med to High Low

Next Step Homes Standard Protocol NEEA unknownDecember

2015High Medium

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Proposed Motion

“I _________ move that the RTF allocate staff resources towards developing:(select all that apply)• a residential Low E Storm Windows UES measure, and/or

• a Residential Duct Insulation UES measure, and/or

• a Residential Prescriptive Air Sealing UES measure, and/or

• a Non-Residential Lighting Code Compliance Standard Protocol, and/or

• a Next Step Homes measure.”