Main Headquarters: 120 Water Street, Suite 350, North Andover, MA 01845 With offices in: NY, ME, TX, CA, OR

www.ers-inc.com

ESTABLISHING SAVINGS ALGORITHMS AND EVALUATION PROCEDURES FOR EMERGING TECHNOLOGIES AND INNOVATIVE PROGRAM APPROACHESLead Author: Brian McCowan

Co-Authors: Philippe Dunsky (DEC) ;Jonathan Livingston (LEI); Mary Sutter (ODC)

Project Contributors:Elizabeth Titus (NEEP)Chris Neme (EFG)

presented by

Brian McCowan

ERS

04/13/2023

Project Sponsor:

Regional Evaluation Monitoring and Verification Forum;

Northeast Energy Efficiency Partnerships (NEEP)

PROJECT

2

Development of Savings Protocols for Emerging Technologies and Program Approaches

04/13/2023

Technologies:

Proposed for Program Implementation

Recent Portfolio AdditionsEstablished but Advancing Rapidly

Program ApproachesNot Widely ImplementedNot Fully Evaluated

EMERGING

3

04/13/2023

Emerging Technologies

Ductless Mini-Split Heat Pumps

Heat Pump Water Heaters

Solid State/LED Lighting

Set-top Boxes

Advanced Power Strips

Biomass Pellet Boilers & Furnaces

Program Approaches

Commercial Lighting Design

Commissioning & Retro-Commissioning

Whole Building Retrofits

CLOSE KNOWLEDGE GAPS & ESTABLISH PROTOCOLS

4

04/13/2023

Knowledge Gaps

Heating Performance of New Low-Temperature Rated Units Performance of Recent High Efficiency Models Homeowner Experience; Control & Comfort Performance as Supplemental System

EM&V Recommendations

Monitor Indoor and Outdoor Temperatures Monitor Consumption of DHP and Central System (if any) Interview Homeowners

DUCTLESS HEAT PUMPS

5

04/13/2023

Knowledge Gaps

What are LED’s Replacing; Incandescent, CFLs

Lumen/Lumen the Right Metric

Do Operating Hours Differ from Conventional Lighting

Persistence Factors and Measure Life

How EISA Affects Markets and Savings Calcs

LED LIGHTING

6

04/13/2023

EM&V Recommendations

Residential• Adopt Deemed Values for Common Products• Socket Surveys & Customer Interviews –

Satisfaction; Life; Persistence Commercial – Including Upstream

• Adopt Deemed Values for Common Products• Develop Algorithms – Lumen/Lumen with

Adjustment Factors• Participate in National/International Efforts

(DLC)

LED LIGHTING

7

04/13/2023

Knowledge Gaps

Typical Install Locations for Geographic Region

Heat Pump or Hybrid Operation

Savings Effects of HW Demand & Storage Sizing

EM&V Recommendations

Assure that Savings Protocols Include:

• Ambient Temperature Factors

• Sizing Considerations• Net Effects if Outdoor

Ducted Develop Deemed Values

HEAT PUMP WATER HEATERS

8

04/13/2023

HEAT PUMP WATER HEATERS

9

04/13/2023

Knowledge Gaps

Persistence Product Compatibility Proper DIY Installation

EM&V Recommendations

Residential• Interview Purchasers 3-6 Months Following Installation• Track Success of DIY vs Professional Install

Commercial• Monitor Consumption Pre – Post Install or with Control

group

ADVANCED POWER STRIPS

10

04/13/2023

Knowledge Gaps

Conventional Fuel Replacement or Partial Displacement

Persistence of the Savings vs Advancing Heat Pumps and Gas Systems

Fuel Supply Stability

EM&V Recommendations

Treat the Measure as Pure Fuel Switch Or; if Program is GHG Focused; Fuel Neutral,

Source Calculation

BIOMASS PELLET BOILERS & FURNACES

11

04/13/2023

Cable; Satellite; Gaming; Streaming

Knowledge Gaps

Progress of New Models New Equipment or Refurbished Decisions - National or Regional Basis

EM&V Recommendations

Engage the Service Providers Supplement National Study Data with Local

Studies on Usage Patterns

SET-TOP BOXES

12

04/13/2023

Commercial Lighting Design Base Calculations on LPD & Deemed or Recorded

Operating Hours Require Lighting Quality Best Practice Support Advanced Technologies

Commercial Commissioning Establish a Site Specific Baseline Monitor Pre/Post Consumption Establish Schedule for Continuous Improvement

PROGRAM APPROACHES

13

04/13/2023

Whole Building Retrofit Programs Develop Fuel Neutral Approach Modeling, Billing Analysis, Monitoring all Valid

Approaches Billing Analysis and/or Monitoring to Calibrate

Models Unregulated Fuels (oil, biomass) Present

Challenges Develop Algorithms that Incorporate Interactive

Effects

PROGRAM APPROACHES

14

04/13/2023

Forum Selected Technologies for Primary Research Ductless Heat Pumps

• Monitor 35 Installations: Maine, New York, Mid Atlantic

• Verify Cold Weather Performance• Verify Homeowner Usage Patterns

Advanced Power Strips

• Survey 100 Residential Purchasers• Monitor 40 - 80 Commercial Installations• Verify Savings and Persistence

PROJECT NEXT STEPS

15