2017 ACEEE Hot Water Forum

2017 ACEEE Hot Water Forum

Hilton Portland & Executive Towers
Portland, OR
February 26, 2017 to February 28, 2017

Overview | Program | Presentations | Past Hot Water Forums

Hot Water Forum Overview

The ACEEE Hot Water Forum (HWF) is the premier technical conference dedicated to making water hot, distributing it with low losses, and using water with efficient fixtures and practices. Since 2008, the HWF has brought together experts and newcomers from manufacturing, distribution (plumbing), electricity, gas and water utilities, government, and the research community's opportunities to learn from each other and build momentum for market transformation. The conference emphasizes both the technical efficiency potential and the policy/program implications of service hot water technology and practices, and how people use hot water. Each year, the Forum features numerous sessions covering cutting-edge developments in these areas. Find out more about the 2017 program below.

HWF participants meet, share ideas, and learn from each other's latest efforts on research, new water heating technologies, structured plumbing approaches, new demand-reduction devices (e.g., fixtures and water-efficient appliances), and programs for stimulating market uptake of new approaches. The HWF presentation program, developed each year by a dedicated steering committee, is complemented by ample time for networking with fellow attendees.

Find out which organizations participated in the 2016 Hot Water Forum here.

Likely Participants Include: Equipment and component manufacturers; water, gas, and electric utilities; local, state, and federal agency personnel; energy efficiency program planners, operators, and evaluators; policymakers; NGOs; and consultants.

Funder Spotlight

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Click here to view a PDF version of the Co-Host Spotlight.

2017 Hot Water Forum Steering Committee

Omar Abdelaziz, Oak Ridge National Laboratory Ben Larson, Ecotope
Grant Campbell, UMA Solar Jim Lutz, Hot Water Research
George Chapman, Consortium for Energy Efficiency Alice Rosenberg, Consortium for Energy Efficiency
Amin Delagah, Fisher-Nickel, Inc. Craig Selover, Consultant
Michael Garrabrant, Stone Mountain Technologies Frank Stanonik, Air-Conditioning, Heating, and Refrigeration Institute
Paul Glanville, Gas Technology Institute Ed Vineyard, Oak Ridge National Laboratory
Kyle Gluesenkamp, Oak Ridge National Laboratory Larry Weingarten, Consultant
Bill Healy, National Institute of Standards and Technology, US DOE Geoff Wickes, Northwest Energy Efficiency Alliance
Bill Hosken, AO Smith Sarah Widder, Pacific Northwest National Laboratory
Gary Klein, Gary Klein Associates Christopher Perry, American Council for an Energy-Efficient Economy
Steve Koep, Vaughn Thermal Corporation Harvey Sachs, American Council for an Energy-Efficient Economy

 

Program

2017 Program Highlights

  • Innovative water heating technology

  • Grid Interactive Water Heating (GIWH)

  • Latest research and field testing on using heat pump water heaters for demand response programs

  • The future of solar thermal water heating

  • Water heating from the installer's perspective

  • Improving hot water distribution systems and controls in commercial, multifamily, and single family residential buildings

  • Modeling hot water use to improve the design and layout of systems that maximize efficiency

  • Latest program efforts to get high efficiency water heaters into homes and commercial facilities

 

Preconference Field Trip

Forum attendees had the option of joining a field trip on Sunday, February 26 to the United Association Local 290 Plumbers and Steamfitters training facility. During the tour, participants viewed and explored working demonstrations of water heaters, piping configurations, and plumbing fixtures.

 

Presentations

Click on the presentation title or the speaker's name to view the presentation.

Monday, February 27 | Tuesday, February 28

 

Monday, February 27

ACEEE Welcome and Introductions:  Chris Perry, American Council for an Energy-Efficient Economy

Welcome from Co-Hosts:  Joshua Green, A.O. Smith and Karen Meyers, Rheem

Welcome from Major Funders:  Michelle Simmons, Oglethorpe Power and Jeff Pratt, Oglethorpe Power

 

Plenary Panel Discussion: The Changing Face of Water Heater Efficiency Ratings

Moderator: Harvey Sachs, American Council for an Energy-Efficient Economy

Speakers: Ashley Armstrong, US Department of Energy

                 Frank Stanonik, Air-Conditioning, Heating, and Refrigeration Institute

                 George Chapman, Consortium for Energy Efficiency

 

Session 1A: Grid-Enabled, Grid-Responsible, and Grid-Interactive Electric Thermal Storage Water Heating: The Foundation of Community Storage!

Moderator: Steven Koep, Vaughn Thermal Corporation; Co-Chair, PLMA Behind-the-Meter Storage (BTMS) Interest Group          

Utility Industry Policy Update - How We Got Here and Where We’re Going

Speaker: Keith Dennis, National Rural Electric Cooperative Association

Is There a ‘Policy-Gap’ for Grid-Interactive Water Heating (GIWH) and Community Storage Technologies?

Speaker: Robin Roy, Natural Resources Defense Council

From Load Management to Distributed Resources to Community Storage: The Great River Energy Journey

Speaker: Gary Connett, Great River Energy

Where Is the SMART in Smart Grid Connected Water Heaters?

Speaker: Bill Hosken, A.O. Smith

Disrupt or Be Disrupted: GIWH, Community Storage, and Beneficial Electrification!

Speaker: Steven Koep, Vaughn Thermal Corporation; Co-Chair, PLMA Behind-the-Meter Storage (BTMS) Interest Group

 

Session 1B: CO2 Combi System: Results from the Field and the Pacific Northwest National Laboratory (PNNL) Lab Homes

Moderator: Charlie Stephens, Northwest Energy Efficiency Alliance

Exploratory Lab Testing of a Residential-Scale Combined Space and Water Heating CO2 Heat Pump

Speaker: Ben Larson, Ecotope

PNNL Lab Home Testing Results for the CO2 Combi System

Speaker: Cheryn Metzger, Pacific Northwest National Laboratory

 

Session 1C: Interactive Systems: Wring Out the Waste

Moderator: Gary Klein, Gary Klein and Associates

Tub Technologies: Auto-Diverting Tub Spouts

Speaker: Troy Sherman, Evolve Technologies

Conserving Hot Water through Tub Spout Diverter Labeling

Speakers: Richa Sharma, US Environmental Protection Agency and Tessa Roscoe, ERG              

Pump Efficiency Rule Making

Speaker: Stephen Putnam, Grundfos North America

The Impact of Pressure Drop

Speaker: Gary Klein, Gary Klein and Associates

 

Session 1D: Today’s Landscape of Residential Efficiency Programs

Moderator: Chris Granda, Appliance Standards Awareness Project

Summary of Residential Energy Efficiency Water Heater Programs in 2016 across the US and Canada

Speaker: Alice Rosenberg, Consortium for Energy Efficiency

ENERGY STAR® Overview: Specification Updates and Consumer Outreach Campaign Successes

Speaker: Steve Ryan, US Environmental Protection Agency

 

Session 2A: Grid-Interactive Water Heating:  Control Providers Roundtable

Moderator: Keith Dennis, National Rural Electric Cooperative Association

Discussion Panelists:      

Robert Warden, Comverge

Joe Childs, Eaton

Matt Carlson, Aquanta

Laurie Vaudreuil, Mosaic Power

Clint Caudle, Carina Technologies

Paul Steffes, Steffes Corporation

Brian Zimmerly, SolarCity

 

Session 2B: Gas Heat Pump Water Heating: Developments and Demonstrations

Moderator: My Ton, P&R Energy            

Transforming the Gas Water Heating Market

Speaker: Aaron Winer, Northwest Energy Efficiency Alliance

Residential Combi-Space/Water Heating Gas Absorption Heat Pump System: Field Evaluation and Lessons Learned

Speaker: Michael Garrabrant, Stone Mountain Technologies, Inc.

Residential Gas Absorption Heat Pump Water Heaters: Field Trials and Extended Life Testing of Packaged Prototypes

Speaker: Paul Glanville, Gas Technology Institute

 

Session 2C: Demonstration of Hot Water Systems in Commercial Kitchens for the California Energy Commission

Moderator:    Amin Delagah, Fisher-Nickel, Inc.  

Results from Monitoring the Existing Hot Water System at an Elementary School

Speaker: Michael Slater, Fisher-Nickel, Inc.

Results from an In-Depth Hot Water System Replacement Project in a Full-Service Restaurant

Speaker: Don Fisher, Fisher Consultants      

Results from a Second Generation Hot Water System Testing Laboratory at Pacific Gas & Electric Company (PG&E)

Speaker: Eddie Huestis, PG&E Applied Technology Services

 

Session 2D: Unintended Consequences of Energy and Water Efficiency Standards

Moderator: Jim Lutz, Hot Water Research        

What Happened to All the Forecasted Large Tank HPWHs after the NAECA 3 Ruling? — How the Supply Chain Did Workarounds to Their Deployment

Speaker: Geoff Wickes, Northwest Energy Efficiency Alliance

How Water and Energy-Efficient Building Standards and Designs Can Impact Potable Water Quality

Speaker: William Rhoads, Virginia Polytechnic Institute and State University              

It’s All About the System

Speaker: Gary Klein, Gary Klein and Associates

 

Session 3A: Grid-Interactive Water Heating Research and Market Development in the Pacific Northwest

Moderator: Steven Koep, Vaughn Thermal Corporation; Co-Chair, PLMA Behind-the-Meter Storage (BTMS) Interest Group

Developing ‘Grid Friendly’ Electric Water Heating: Efficient and Controllable

Speaker: Jennifer McMaster, Bonneville Power Administration

Standardizing GIWH and Rolling Out at Scale (Design and Implementation of a Utility-Backed CTA-2045 Enabled Water Heating Program)

Speaker: Roch Naleway, Portland General Electric

Water Heaters for Grid Energy Storage in the Northwest

Speaker: Ken Dragoon, Flink Energy

Beneficial Electrification in the Northwest: Exploring the Potential Impact of Aggregating Hot Water Heaters

Speaker: Carl Linvill, Regulatory Assistance Program

 

Session 3B: Frontiers in Heat Pump Water Heater (HPWH) Research

Moderator: Geoff Wickes, Northwest Energy Efficiency Alliance               

Conditioning Interactions with HPWHs: A Test in Side-by-Side Lab Homes

Speaker: Cheryn Metzger, Pacific Northwest National Laboratory

Results from a 23-Site Residential Field Study of Hybrid HPWHs in Central California

Speaker: Owen Howlett, Sacramento Municipal Utility District

Hydrofluoroolefins (HFOs) as Low GWP Refrigerants for Residential Heat Pump Water Heaters

Speaker: Kashif Nawaz, Oak Ridge National Laboratory

 

Session 3C: Solar Thermal Water Heaters

Moderator:     Larry Weingarten

Solar Powered Water Heating Technology Research

Speaker: Gerardo Diaz, University of California, Merced

Ultra-High-Efficiency, PV-System-Integrated, Non-Grid-Tied Hot Water Energy Storage

Speaker: Carlos Colon, University of Central Florida, The Florida Solar Energy Center

Assessment of Current and Potential Environmental Benefits of Residential Solar Water Heating in California

Speaker: Loren Lutzenhiser, California Energy Commission

 

Session 3D: Legionella and Water Safety

Moderator: Jim Lutz, Hot Water Research

Effect of Flow Rate on Legionella Levels at the Tap

Speakers: William Rhoads, Virginia Polytechnic Institute and State University

A Monochloramine Study on the Hot Water System in a Hospital

Speaker: Janet Stout, Special Pathogens Laboratory

Legionnaires ’ Disease in Flint, Michigan: Lessons Learned

Speaker: William Rhoads, Virginia Polytechnic Institute and State University

 

Shameless Commerce: Introducing New Products and Services

 

Tuesday, February 28

 

Session 4A: Efficient Hot Water Control and Delivery

Moderator: Sarah Widder, Pacific Northwest National Laboratory

Introduction to Hot Water Controls and Distribution Losses

Speaker: Gary Klein, Gary Klein and Associates

Field Study of an Intelligent, Networked, Retrofittable Water Heater Controller

Speaker: Ben Schoenbauer, Center for Energy and the Environment

Developments in Recirc Controls in Dorms and Updates on California Energy Commission Crossover Research

Speaker: Gabriel Ayala, Enovative

Hot Water Temperature Maintenance Pilot Study

Speaker: Shawn Oram, Ecotope

 

Session 4B: Understanding Electric Heat Pump Water Heater (HPWH) Energy Use across Climates and Draw Patterns

Moderator: Jim Lutz, Hot Water Research

Towards a Universal Test Pattern: Lab Studies of Water Heater Control Responses to Various Draws

Speaker: Ben Larson, Ecotope

Simulated Heat Pump Water Heater (HPWH) Performance in All 50 US States

Speaker: Pierre Delforge, Natural Resources Defense Council

HPWH Demand Load Diversification

Speaker: Carl Hiller, Davis, California

 

Session 4C: Advances in Drain Water Heat Recovery (DWHR) Modeling and Technology

Moderator: Peter Grant, Davis Energy Group    

Development of Title 24s New DWHR Savings Algorithm

Speakers: Peter Grant, Davis Energy Group        

Benefit/Cost Analysis of Residential DWHR for California’s Title 24

Speaker: Bo White, NegaWatt Consulting

The Advantages of Horizontal DWHR

Speaker: David Velan, EcoDrain

 

Session 4D: Unique Program Approaches in the Market

Moderator: Alice Rosenberg, Consortium for Energy Efficiency

Overview of a National Distributed Products Platform (NDDP) Effort to Promote Heat Pump Water Heaters (HPWHs) Midstream

Speaker: Howard Merson, Vermont Energy Investment Corporation (VEIC)

Rural Energy for America Program

Speaker: John Holman, US Department of Agriculture, Rural Development, Oregon

Whole House Approach

Speaker: Jerry Ryan, New Jersey Natural Gas

What Co-ops Are Doing

Speaker: Timothy O’Connell, US Department of Agriculture, Rural Development, Oregon

 

Session 5A: Grid-Responsive Water Heater Controls (HPWHs and ERWHs)

Moderator: Sarah Widder, Pacific Northwest National Laboratory           

CTA-2045 Smart Water Heater Field Pilot

Speakers: Amy Bryan, Jackson EMC, Michelle Simmons, Oglethorpe Power, Tristan de Frondeville, SkyCentrics, and Bill Hosken, A.O. Smith

Time-Of-Use Water Heater Optimization

Speaker: William Burke, Virtual Peaker

Developments in CEA-2045 and Grid-Responsible HPWH Controls

Speaker: Ed Vineyard, Oak Ridge National Laboratory

 

Session 5B: Gas Heat Pump Water Heating: Design of Advanced Sorption Systems

Moderator: Ed Vineyard, Oak Ridge National Laboratory             

Theory of Semi-Open Sorption Gas-Fired Heat Pump Systems and Early Experimental Results

Speaker: Kyle Gluesenkamp, Oak Ridge National Laboratory

Using the Open Source SorpSim for Simulation of Water Heating Applications

Speaker: Zhiyao Yang, Oak Ridge National Laboratory           

Commercial Water Heating with Gas Absorption Heat Pumps: Development and Impact of Storage Tank Design

Speaker: Mike Garrabrant, Stone Mountain Technologies

 

Session 5C: Multifamily Water Heating Great and Small: From Shower Flow Rates to Large Scale Central Heat Pumps

Moderator: Ben Larson, Ecotope

Field Measured Flow Rates of Showerheads

Speaker: Mike Bailey, Energy Trust of Oregon

Field Results from Distributed and Central Heat Pump DHWs in Four Apartment Complexes of Zero Net Energy Housing

Speaker: Sean Armstrong, Redwood Energy

Central Heat Pump Water Heating Systems: Interplay and Efficiency Implications of Heat Pumps and Circulation Loops

Speaker: Jon Heller, Ecotope

 

Session 5D: Market Madness: Coordinating Supply Chain Players on the Heat Pump Water Heaters (HPWH) Court

Moderator: Geoff Wickes, Northwest Energy Efficiency Alliance (NEEA)              

Rapid Adoption of Energy-Efficient Products through Midstream Interventions

Speaker: Howard Merson, Vermont Energy Investment Corporation (VEIC)

Jump Starting the Installer Contractor Markets with Innovative Approaches

Speaker: Jill Reynolds, Northwest Energy Efficiency Alliance (NEEA)

Retail Markets: How to Get Utilities, Original Equipment Manufacturers and Retailers on the Same Page

Speaker: Jessica Atwater, CLEAResult

 

Session 6A: Behind the Scenes of Water Heater Numerical Simulations

Moderator: Ben Larson, Ecotope            

A Public-Domain, Hardware-Based Modeling and Design Tool for Heat Pump Water Heaters (HPWHs)

Speaker: Bo Shen, Oak Ridge National Laboratory   

HPWHsim: Under the Hood of a Heat Pump Water Heater Performance and Energy Simulator

Speaker: Michael Logsdon, Ecotope

HPWH Modeling Improvements in EnergyPlus and BEopt

Speaker: Jeff Maguire, National Renewable Energy Lab

 

Session 6B: Wide-Ranging Applications of CO2  Heat Pump Water Heaters (HPWHs)

Moderator: Charlie Stephens, Northwest Energy Efficiency Alliance

Applications for CO2 Heat Pump Water Heaters in Multifamily Buildings

Speaker: Jon Heller, Ecotope

Combined Space and Water Heating Using Split-System CO2 Refrigerant Heat Pump Water Heaters

Speaker: Ken Eklund, Washington State University

Early Field Installations of a 3-Ton Combined Space and Water Heating CO2 Heat Pump

Speaker: Charlie Stephens, Northwest Energy Efficiency Alliance

 

Session 6C: Field Monitoring of Dish Rooms in Large Commercial Kitchens

Moderator: Don Fisher, Fisher Consultants        

Results from Monitoring Three Best-in-Class Flight Conveyor Dishwashers with Heat Recovery

Speaker: Michael Slater, Fisher-Nickel, Inc.

Results from an In-Depth Boiler Room and Dish Room Monitoring Project in an Army Cafeteria

Speaker: Amin Delagah, Fisher-Nickel, Inc.

The Next Frontier for Savings: Pre-Rinse Operations in Large Dish Rooms

Speaker: Amin Delagah, Fisher-Nickel, Inc.

Cash for Kitchens: The Water-Energy Nexus in Your Favorite Eateries

Speaker: Stan Mueller, DNV GL Energy Services USA, Inc.

 

Session 6D: California and Beyond: Policy Pathways and Hot Water

Moderator: Ed Vineyard, Oak Ridge National Laboratory

Pathways to Decarbonize Residential Water Heating in California

Speaker: Shuba Raghavan, University of California, Berkeley

Opportunities and Hurdles in California: A Policy Framework to Decarbonize Thermal Loads in Buildings

Speakers: Merrian Borgeson, Natural Resources Defense Council and Pierre Delforge, Natural Resources Defense Council

The Role of Natural Gas for Water Heating

Speaker: Sue Kristjansson, SoCalGas

 

Session 7A: The Potential of Heat Pump Water Heaters (HPWHs) for Demand Response and Grid Services

Moderator: Sarah Widder, Pacific Northwest National Laboratory

Grid-Connected HPWHs: Climatic and Seasonal Effects of Optimal Energy Efficiency and Demand Response Potential

Speaker: Hemang Nerlekar, Navigant Consulting

HPWHs and Demand Response

Speaker: George Gurlaskie, Duke Energy

Hierarchical Controller Design for Engaging HPWHs to Provide Primary Frequency Regulation

Speaker: Jacob Hansen, Pacific Northwest National Laboratory

 

Session 7B: Cutting Edge Multifamily Research: New Data, Projects, and Programs

Moderator: Chris Perry, American Council for an Energy-Efficient Economy

Domestic Hot Water (DHW) Electrification in Multifamily Buildings: An On-the-Ground Perspective

Speakers: Andy Brooks, Association for Energy Affordability Inc. and Nick Dirr, Association for Energy Affordability Inc.

How Much Water Do People Use: New Sources of Water Use Data

Speaker: Nehemiah Stone, Stone Energy

Electric Water Heating in Zero Energy Ready Multifamily Buildings

Speaker: Jess Kincaid, Bonneville Power Administration

 

Session 7C: New Standards for Hot Water

Moderator: Carl Hiller, Davis, California

How Hot Water Is Calculated in Title 24

Speaker: Jim Lutz, Hot Water Research

Hot Water Draw Patterns in Title 24 Calculations

Speaker: Jim Lutz, Hot Water Research

Reporting on International Association of Plumbing and Mechanical Officials (IAPMO) Pipe Sizing Activities

Speaker: Dan Cole, International Association of Plumbing and Mechanical Officials (IAPMO)