2012 Hot Water Forum: Program

2012 Hot Water Forum: Program

 

 THE 2012 ACEEE HOT WATER FORUM
Water Heating, Distribution, and Use Efficiency

 

Monday, May 21, 2012 - Wednesday, May 23, 2012

DoubleTree Hotel & Executive Meeting Center, Berkeley Marina, Berkeley, California


Monday, May 21
8:30 to 10:00 am  
Welcome Address and Plenary Panel                             Angel/Belvedere Ballrooms


Welcome to the 2012 Hot Water Forum:
Co-Chairs: Lance DeLaura, Sempra Energy
                 Charlie Adams, A.O. Smith Corporation

 

Plenary Panel

Panelists: Charles Bohlig, East Bay Municipal Utility District

                 Van Baxter, Oak Ridge National Laboratory


The opening plenary session began with a welcome from the Hot Water Forum co-chairs and a presentation from Charles Bohlig of East Bay Municipal Utility District, the local water utility. This talk covered research and initiatives regarding energy and greenhouse gas reduction strategies at the utility level. Following this, Van Baxter of Oak Ridge National Laboratory discussed results from the Research and Development Roadmap for Water Heating Technologies, for which there was a scoping meeting immediately preceding last year’s Hot Water Forum.

 

10:30 am to 12:00 pm                                       BREAKOUT SESSIONS

Session 1A                                                                                                      Angel Island
Thermal Storage Water Heating Technologies                         

Presenters:  Paul Steffes, Steffes Corporation 
                    Harshal Upadhye, Electric Power Research Institute 
                    Chantal Hendrzak, PJM Interconnection, LLC


Facilitator:  Steven Koep, Independent Consultant


Description: While off-peak Electric Thermal Storage (ETS) water heating has been around for decades, emerging grid-interactive control technology offers new opportunities for carbon reduction, ancillary services and renewable integration. Attendees learned more about the technology, the research and the market potential for the next generation of ETS water heating.

 


Session 1B                                                                                                    Belvedere Island
Coordinated Lab Testing of Water Heaters

Presenters: Paul Glanville, Gas Technology Institute
                   Robert Davis, Pacific Gas & Electric Company


Description: In this session, two speakers presented the results of lab testing directed at quantifying various performance aspects of gas fired residential storage and tankless water heaters. One set of tests quantified gas and electric use of Energy Star (≥ 0.67 EF) non-condensing and condensing storage water heaters against a baseline of unpowered 0.62 and 0.59 EF storage water heaters, along with the EF impact of non-standard draw profiles. The second set of tests quantified the thermal parameters, start and shutdown sequences, transient load response, and other characteristics of non-condensing and condensing tankless water heaters, along with the EF impact of non-standard draw profiles.

 

Session 1C                                                                                                     Treasure Island
Building America

Presenters: Marc Hoeschele, Davis Energy Group
                   Carl Shapiro, Steven Winter ASsociates, Inc.


Description: This session focused on Building America efforts related to water heating research. Presenters discussed Building America’s strategic plan, which identifies gaps and barriers in water heating research, and solicit feedback from attendees for future research directions. A representative from the Building America team, Consortium for Advanced Residential Building’s (CARB), discussed work related to heat pump water heater performance, including a proposed daily performance model that evaluates the performance of heat pump water heaters operating in heat pump only mode and reveals the sensitivity of HPWHs to environmental variables, such as mains water temperature, setpoint temperature, ambient temperature, and ambient humidity.

 

Session 1D                                                                                                      Yerba Buena
Revising HERS To Account for Hot Water Use Efficiency

Presenters: Craig Selover, Masco Corporation
                   Jonah Schein, U.S. Environmental Protection Agency WaterSense

 

Facilitator:   Gary Klein, Affiliated International Management, LLC


Description: This session discussed efforts to incorporate credit in HERS scores for hot water demand reductions through reduced fixture flow rates, better plumbing lay-outs, insulated hot water pipes, and more. Presenters talked about the planning process as well as the program perspective and the challenges posed by incorporating hot water efficiency into ratings.

 

12:00 to 1:30 pm                        Lunch                           Bay Grille and Lounge

 


1:30 to 3:00pm                                                       BREAKOUT SESSIONS

Session 2A                                                                                                              Angel Island
Residential Solar Water Heating 
 
Presenters:  Larry Weingarten, Water Heater Rescue
                    Kevin Dickson
                    Jay Burch, National Renewable Energy Laboratory

                    Dave Kalensky, Gas Technology Institute


Description: Solar Water Heaters (SWHs) have a negligible share of the water heater market (< 0.3%), primarily because of high cost compared to conventional and emerging advanced technologies (heat pump water heaters, condensing tankless). In this session, speakers discussed simpler solar water heating systems for residential applications that can offer lower purchase prices.

 

Session 2B                                                                                                         Belvedere Island
Hot Water Distribution System Modeling 
 
Presenters:  Peter Grant, Lawrence Berkeley National Laboratory
                    Carl Hiller, Applied Energy Technology
                    Marc Hoeschele, David Energy Group 

 

Facilitator:   Jim Lutz, Lawrence Berkeley National Laboratory

Description: In this session, three speakers presented: 1) results of distribution piping heat loss testing; 2) validation and simulation outcomes from a first generation whole house, integrated hot water generation and distribution model; and 3) plans for next generation water heater and distribution piping modeling.

 

Session 2C                                                                                                            Treasure Island
Thermal Storage Water Heating Programs

Presenters:  Eric Lajoie-Mazenc, EDF- R&D- Dépt. Energie dans les Bâtiments et Territoires 
                    Gary Connett, Great River Energy
                    Ken Corum, Northwest Power & Conservation Council

 

Facilitator:   Ammi Amarnath, Electric Power Research Institute


Description: For Thermal Storage water heating, electric utility program structure and implementation have been equally as important as the technology itself. Electric utilities from North America and Europe have proven the long-term utility, customer and environmental benefits of grid-connected Electric Thermal Storage (ETS) water heating. In the 21st century, these programs have become increasingly indispensable due to their expanded potential for renewable integration, carbon reduction and ancillary services.

 


Session 2D                                                                                                                Yerba Buena
Fixtures and Distribution Systems: Lifecycle Analysis and Implications for Programs

Presenters:  Craig Selover, Masco Corporation
                    Jonah Schein, U.S. Environmental Protection Agency WaterSense

 

Facilitator:   John Koeller, Koeller and Company


Description: First, this session featured the results of a life cycle analysis study of a faucet and showerhead, examining the carbon footprint related to manufacturing and water use and linking these results to the potential for water and energy savings for programs. Next, the session looked at methods by which WaterSense has attempted to address the issues of hot water distribution systems, what the response has been from builders, and what some major challenges have been.

   

 

3:30 to 5:00 pm                                                          BREAKOUT SESSIONS

Session 3A                                                                                                                      Angel Island
Controls and Sensors: Examining Hot Water Use

Presenters:  Eric Larson, University of Washington 
                    Craig Selover, Masco Corporation
                    Steven Lanzisera, Lawrence Berkeley National Laboratory

 

Facilitatory: Harvey Sachs, American Council for an Energy-Efficienct Economy (ACEEE)
                   
Description: This session featured recent advances in water usage monitoring devices pioneered by researchers at University of Washington Ubicomp Lab and Lawrence Berkeley National Laboratory, as well as experience monitoring hot water use in the field by Masco Corporation. Attendees learned about successes and some pitfalls in the annals of water usage monitoring.

 

Session 3B                                                                                                                 Belvedere Island
Whole Buildings

Presenters:  Nick Lange, Vermont Energy Investment Coporation
                    Jim Lutz, Lawrence Berkeley National Laboratory


Description: This session featured two eye-opening presentations on two very different experiences related to whole-building hot water use. First, we heard about a case study of a gut rehab in a residential building that incorporated almost every compatible efficient hot water generation, distribution and usage measure, including structured plumbing with demand pumping, drain water heat recovery, heat pump water heater with controlled exhaust, and more. This study evaluated interactive effects, non-energy benefits, cold-climate and long term considerations (solar hot water vs. electric-only), and family harmony. Next, participants learned about a study of the distribution system in an office building in northern California, disclosing many of the inefficiencies that can lurk in even a water heating expert’s backyard.

 

 

Session 3C                                                                                                                    Treasure Island
Northern Climate Specification for Heat Pump Water Heaters

Presenters:  Dave Kresta 1, 2, Northwest Energy Efficiency Alliance
                    Ben Larson, Ecotope, Inc.

     
Description: The Northern Climate Specification for Heat Pump Water Heaters (HPWHs) provides guidance to manufacturers who are interested in developing products that not only meet ENERGY STAR criteria but are able to provide high levels of consumer satisfaction and energy performance in cooler, northern climates. Initially released in October 2009, the Northwest Energy Efficiency Alliance (NEEA) worked closely with The Northern Climate HPWH Task Force, a group of more than 60 regional utilities and energy efficiency partners and local and national energy organizations from across the northern U.S. and Canada to develop and release significant updates to the specification in late 2011. The updated specification introduces a Northern Climate Energy Factor which supplements the standard Federal EF value by calculating performance at temperatures lower than room temperature. A Northern Climate Delivery Rating has also been introduced to supplement the standard Federal First Hour Rating, providing data on how many showers a unit can deliver while operating in high efficiency mode in a cooler climate. This session described the development of these new metrics, including accompanying test procedures and analytical framework, lab and field testing results, along with a discussion of future climate-specific extensions to this and Federal water heater standards.

 

 

Session 3D                                                                                                                      Yerba Buena
Green Plumbing Codes

Presenters:  Gary Klein, Affiliated International Management, LLC

     
Description: Both the International Code Council (ICC) and the International Association of Plumbing and Mechanical Officials’ (IAPMO) recently adopted specifications for hot water consumption in their green codes for the first time. Gary Klein discussed the development process for these new specifications and their ramifications for the industry.


5:00 to 7:00 pm      Cocktail Reception         Quarter Deck & Ballroom Foyer

 

 

7:00 to 8:30 pm         Informal Session                                 Angel Island

ENERGY STAR Commercial Water Heater Specification: Program Update and Informal Feedback
Presenters: Don Fisher, Fisher-Nickel, Inc.

                   Amin Delagah, Fisher-Nickel, Inc.

     
Description: This informal session began with an overview of the upcoming ENERGY STAR specification for commercial water heaters led by Don Fisher and Amin Delagah. Following this was an open discussion and question-and-answer period in order to highlight areas for further exploration and solicit the audience for data and expertise that will aid development of the specification.

 


Tuesday, May 22


8:30 to 10:00 am                                                        BREAKOUT SESSIONS

Session 4A                                                                                                                             Angel Island
Heat Pump Water Heater Technologies

Presenters:  Michael Garrabrant, Stone Mountain technologies Inc.
                    Maho Ito, Sanden USA
                   John Bush, Electric Power Research Institute

                    Bill Hosken, AO Smith Corporation

 
Facilitator:  Ammi Amarnath, Electric Power Research Institute
             


Description: In this session, speakers discussed new heat pump water heater technologies, including gas-fired heat pumps and reduced-GHG refrigerants, as well as the Electric Power Research Institute’s experience using heat pump water heaters for commercial water heating.

 

Session 4B                                                                                                                     Belvedere Island
Combination Systems: Testing

Presenters: Ben Schoenbauer, Center for Energy and Environment
                   Dave Kalensky, Gas Technology Institute

 

Facilitator:  Linda Wigington, Affordable Comfort, Inc.


Description: This session features the results of new studies from the Center for Energy and Environment and the Gas Technology institute regarding energy performance of combination water/space heating systems.

 

Session 4C                                                                                                                        Treasure Island
Water Heating Efficiency Programs: Challenges and Opportunities

Presenters:  Carlos Ruiz, Southern California Gas Company 
                    Delaina Wilhem, Pacific Gas & Electric Company

 
Faciliator:    Tony Gross, Consortium for Energy Efficiency
               

Description: Promoting high efficiency water heaters remains a significant challenge, but innovative program design can help overcome obstacles to high efficiency water heating in the residential market. This session focused on the dynamics of managing water heating efficiency programs—and promoting high efficiency water heaters—in an era of unprecedented challenges. These challenges are related to low natural gas prices, significant incremental costs for high-efficiency equipment, and a market driven by emergency replacement. Two efficiency program administrators, Delaina Wilhelm of PG&E and Carlos Ruiz of SoCalGas, will review these challenges, and describe program successes and emerging opportunities. Tony Gross of CEE moderated the discussion and discuss collaborative efforts to promote high efficiency water heating through the CEESM High Efficiency Residential Gas Water Heating Initiative and the Coalition for ENERGY STAR Water Heaters.

 

Session 4D                                                                                                                          Yerba Buena
Hot Water, Hygiene, and Safety

Presenters:  Andrew Flanagan, Mazzetti Nash Lipsey Burch
                    Tor Reedtz, ONE HEAT

 
Faciliator:    Larry Acker, ACT Inc. D'MAND Systems
               

Description: Legionella is a growing concern in the water heating industry. In this session, attendees learned about developments in the health care industry to address legionella and infection control while minimizing hot water waste and about a new tankless electric water heater designed to kill legionella.

 

10:30 Am to 12:00 pm                                             BREAKOUT SESSIONS

Session 5A                                                                                                                            Angel Island
Tales from the Field

Presenters:  Randy Schuyler, Water Heater Rescue 
                   Jim Lunt, The Lunt Marymor Company, Inc.
                   Larry Weingarten, Water Heater Rescue         


Description: In this session, presenters provided some real-world experiences with water heaters… the good, the bad, and the ugly. Randy Schuyler and Larry Weingarten described an undesirable “smelly water” situation and solutions for fixing it, and Jim Lunt provided insights from a contractor’s experience installing water heaters in the field.

Session 5B                                                                                                                      Belvedere Island
Water Heater Performance in the Field

Presenters:  Marc Hoeschele, Davis Energy Group  
                    William Goetzler, Navigant Consulting Inc.

 

Facilitator:   Dave Kalensky, Gas Technology Institute
             
Description: In this session, two speakers presented the results from recent residential water heater test programs. One program monitored conventional storage water heaters for baseline performance at eighteen single family home sites, then monitored the performance of various retrofitted advanced storage and tankless water heaters at those sites. The other program procured thirteen working residential water heaters from the field, aging 2-14 years old, both gas and electric, and tested them at an accredited lab to determine their actual performance after years of use, along with the types of performance degradation.

 

Session 5C                                                                                                                       Treasure Island
Hot Water Use in the European Union: Where We Are and Where We’re Going

Presenters:   Flemming Schroder, Alectia
                     Bruno Prestat, Electricite De France

 

Facilitator:    Ammi Amarnath, Electric Power Research Institute


Description: This session featured two perspectives on hot water use in the European Union. First, Flemming Schroder detailed results from a study in Denmark revealing large energy losses in hot water installations regarding both water and energy waste, which suggest large opportunities for savings. Next, Bruno Prestat  explained how energy savings from hot water systems will serve as an important component of the European Union’s regulations demanding reductions in energy use and greenhouse gas emissions of 20 percent by 2020. He also described Electricite De France’s strategies to adhere to these this aggressive reduction goal.
 

Session 5D                                                                                                                          Yerba Buena
Unintended Consquences of Improved Fixture Efficiency

Presenters:   John Koeller, Koeller and Company
                     Gary Klein, Affiliated International Management, LLC

 

Description: Water conservation standards for fixtures have helped reduce water waste, but what impact does this reduced water flow have on our drainage systems? This session discussed how changing flow rates impact household and city drains and how we might address problems that arise.


12:00 to 1:30 pm                     Lunch                         Bay Grille and Lounge

 

                                                                                                                                                                                                   
1:35 to 3:00 pm                                                          BREAKOUT SESSIONS

Session 6A                                                                                                                             Angel Island
The Science Behind Polyurethane Insulation

Presenters:  Michael Garrabrant, Stone Mountain technologies Inc.
                   

Description: In this session, speakers discussed new heat pump water heater technologies, including gas-fired heat pumps and reduced-GHG refrigerants, as well as the Electric Power Research Institute’s experience using heat pump water heaters for commercial water heating.

 

Session 6B                                                                                                                      Belvedere Island
Lab Testing and Field Testing Heat Pump Water Heaters

Presenters: Linda Wigington, Affordable Comfort, Inc.
                   Kacie Bedney, Bonneville Power Administration

                   Ammi Amarnath, Electric Power Research Institute

                   John Bush, Electric Power Research Institute


Description: Heat pump water heaters for residential water heating are becoming mainstream. This session focused on how heat pump water heaters are performing in lab tests and field studies, regarding both their operation characteristics and energy efficiency.

 
 
Session 6C                                                                                                                         Treasure Island
Characterizing the Solar Water Heating Market Internationally: A Comparison of the Chinese, European, U.S., and Israeli Solar Thermal Markets

Presenters:  Les Nelson, International Association of Plumbing and Mechanical Officials
                    Bill Miao, SunEnergyNet

                    William Goetzler, Navigant Consulting, Inc.

 

Facilitator:   Sarah Smith, California Center for Sustainable Energy              

 

Description: Panelists described the state of the Chinese, European, and U.S. solar water heating markets, focusing on why these markets have developed differently. Factors, such as solar water heating system cost and performance in the U.S., Chinese, and Israeli markets, were examined.

 

Session 6D                                                                                                                          Yerba Buena
Test Procedures and Rating Methods

Presenters:  Jim Lutz 1, 2, Lawrence Berkeley National Laboratory
                    Martin Thomas, Natural Resources Canada

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

              

Description:In this session, presenters provided updates on various test procedure and rating method developments, including: CSA P.9 and ASHRAE 124, test procedures for rating space/water heating combination systems; ASHRAE 118.2, the test procedure for rating residential water heaters; and ASHRAE 206, the test procedure for rating multipurpose heat pumps for residential space conditioning and water heating.

 

3:30 to 5:00 pm                                                       BREAKOUT SESSIONS

Session 7A                                                                                                                            Angel Island
Recovering Waste Heat from Drain Water: Technologies and Emerging Policies

Presenters:  Craig Richmond, Nexus eWater
                    Gerald Van Decker, RenewABILITY Energy Inc.

 
Facilitator:   Harvey Sachs, American Council for an Energy-Efficient Economy (ACEEE)
                    

Description: This session featured presentations from two manufacturers of devices that recover and reuse heat from drain water, including drain water heater revocery (DWHR) devices, and a grey water recycling technology. Additionally, attendees will learn about program and policy updates related to DWHR, including building codes.

Session 7B                                                                                                                      Belvedere Island
Commercial Kitchens: New Research Projects

Presenters:  Don Fisher, Fisher-Nickel, Inc.
                    Amin Delagah 1, 2, Fisher- Nickel, Inc.

            

Description: This session featured three talks related to hot water use in commercial kitchen facilities. First, Amin Delagah described a recent project by the PG&E Food Service Technology Center at a large sit-down restaurant that involved monitoring a boiler-based hot water system both pre- and post-retrofit of a solar water heating system. Aspects of the case study  include: boiler system efficiency, solar energy savings, solar fraction, project costs, installation considerations, projected payback period, and cost effectiveness if installed in a new facility.


Next, Amin discussed two recent commercial dishwasher retrofit studies and provide an update on emerging dishwasher technologies. Efficient dishwashers are mature in the marketplace, but many facilities scrape by with a ten to twenty year old machine that is guzzling hot water and breaking down frequently.


Finally, Don Fisher discussed an RD&D roadmap for future commercial kitchen hot water systems. This research will spawn field-demonstration projects to showcase advanced technologies and design strategies. Ultimately the goal is to vastly improve hot water delivery performance and dramatically reduce the energy use for water heating in commercial facilities through the development of design guidelines and robust incentives.

 

Session 7C                                                                                                                       Treasure Island
Combination Systems: Programs and Market Transformation

Presenters:   Joe Shiau, Southern California Gas Company
                     Ben Schoenbauer, Center for Energy and Environment

 

Facilitator:    Gary Klein, Affiliated International Management, LLC


Description: This session featured two perspectives on programs for combination water/space heating systems: first, a pilot program using an advanced dual-set point boiler controller to save apartment combination boilers 20% of total energy load; and second, combination systems as an energy and safety solution for low-income weatherization, examining cost effectiveness, applicability to weatherization situations, and hurdles to large-scale implementation.

 

Session 7D                                                                                                                          Yerba Buena
Open Discussion: Best Practices for Field Studies, Monitoring Protocol and Survey Instruments

Facilitator:   Jim Lutz, Lawrence Berkeley National Laboratory

 

Description: The last few years have seen an uptick in the number of studies evaluating how people use hot water, both from a behavioral and technical standpoint. The goal of this session was to bring together the experts undertaking these initiatives and discuss the best practices in these disciplines to harmonize efforts and ensure that studies capture the most relevant information.

 

 

5:00 to 7:00 pm        Cocktail Reception          Quarter Deck and Ballroom Foyer

 

 

7:00 to 8:30 pm                  Informal Session                          Angel Island

Group Discussion: What are the Best Practices in Water Heating Efficiency and Why?

Facilitator:    Gary Klein, Affiliated International Management, LLC


Description: Gary Klein facilitated an open discussion about the best practices in water heating system design. Attendees shared insights and engaged in a lively debate about how we can do things better.

 


Wednesday, May 23

 

8:30 to 10:00 am                                                      BREAKOUT SESSIONS

Session 8A                                                                                                                            Angel Island
Tankless Water heaters: Technologies and Testing

Presenters:  Gabe Ayala, Enovative Group
                    Tor Reedtz, ONE HEAT

 

Facilitator:   Gary Klein, Affiliated International Management, LLC
                    

Description: This session explored two developing areas for tankless water heating technologies. One presentation detailed the benefits of a new electric tankless water heating technology. The other presentation explored the cold water sandwich and technologies that offer solutions to the resulting water and energy waste.

Session 8B                                                                                                                      Belvedere Island
Heat Pump Water Heaters: Whole House Impacts

Presenters:  Ben Larson, Ecotope, Inc.
                    Martin Thomas, Natural Resources Canada

                    Carl Hiller, Applied Energy Technology

 

Facilitator:   Dave Kresta, Northwest Energy Efficiency Alliance

 

Description: This session featured two studies of whole house impacts of heat pump water heaters and an examination of historical and current issues with HPWHs in terms of equipment, applications, and design philosophies.

 

Session 8C                                                                                                                       Treasure Island
Strategies for Market Transformation

Presenters:   Alexis Allan, Northwest Energy Efficiency Alliance
                     Robert Mowris, Verified, Inc.

 

Facilitator:    Jacob Talbot, American Council for an Energy-Efficient Economy (ACEEE)


Description: This session explored current market transformation efforts for water heating efficiency, including the Northwest Energy Efficiency Alliance’s Water Heater Market Characterization Study, as well as new tools to assist market transformation programs.

 


Session 8D                                                                                                                          Yerba Buena
California Policies for Energy and Water Efficiency
Presenters:   Martha Brook, California Energy Commission
                     Tenaya Asan, Build It Green

Facilitator:   Nehemiah Stone, Benningfield Group

 

Description: Codes and standards at the state level, ordinances at the local level, as well as utility and other voluntary programs are placing an increased emphasis on energy and water efficiency in California. The presenters in this session are among the leaders in organizations that both research the industry-driven changes, and drive many of the regulatory and policy changes. They discussed the impacts of recent changes and the expectations for impending ones.

 

10:30 am to 12:00 pm                                               BREAKOUT SESSIONS

Session 9A                                                                                                                            Angel Island
Balancing Storage and On-Demand: New Tankless Technologies to Address the Cold Water Sandwich

Presenters:  Paul Home, Grand Hall USA, Inc.
                    Joe Norris, Navien America

 

Facilitator:   Gary Klein, Affiliated International Management, LLC
                    

Description: Consumers are used to having hot water delivered consistently from their tank water heaters and are not used to cold water sandwich effects created by the on-demand nature of most tankless water heaters. However, there are innovative approaches made by new technologies that deliver the desirable amenities and energy savings of tankless water heaters without the cold water plugs. These new technologies incorporate small amounts of storage within guidelines of the DOE tankless definition.  This session explored more about how the next generation of on-demand retrofits with existing plumbing systems.

Session 9B                                                                                                                      Belvedere Island
New Methods for Modeling High Performance Water Heating Systems

Presenters:  Eric Wilson, National Renewable Energy Lab
                    Gerald Van Decker, RenewABILITY Energy Lab

 

Facilitator:   Adam Christensen, Appliance Standards Awareness Project

 

Description: In this session, presenters described new methods to model the performance of high efficiency water heating systems. Eric Wilson described a model to predict heat pump water heater performance that takes into account impacts to whole house energy performance and patterns of use. Gerald Van Decker discussed a new model for calibrating EF performance when a drain water heat recovery device is installed.

 

Session 9C                                                                                                                       Treasure Island
Examining Patterns, Trends, and Implications of Varying Water and Energy Use

Presenters:   Joe Shiau, Southern California Gas Company
                     Linda Wigington, Affordable Comfort, Inc.

 

Facilitator:    Jacob Talbot, American Council for an Energy-Efficient Economy (ACEEE)


Description: The amount of energy used for heating water is inextricably linked to how people use hot water. Complicating this situation is the great diversity in patterns of use and variety of water heating systems among homeowners. This session offered two perspectives on this conundrum: first, from the results of a behavioral study of hot water use in single-family homes; and second, from the perspective of very low-load homes with highly motivated occupants. How do behaviors vary in these situations and what are the opportunities for saving water and energy in diverse applications?

 


Session 9D                                                                                                                          Yerba Buena
CPUC On-Bill Financing for Water Heaters
Presenters:   James Fine, Environmental Defense Fund
                     William Hoover, William R. Hoover LLC

Facilitator:   Jim Lutz, Lawrence Berkeley National Laboratory

 

Description: The California Public Utilities Commission has been developing an on-bill repayment plan for California customers who wish to invest in high efficiency upgrades, but lack the capital to do so. In this session, we heard about the program’s scope and development process, as well as its implications for the energy efficiency market.

 

12:00 pm                                    Lunch                                 Ballroom Foyer

 

 

12:30 pm                                                   Field Trip

Following the Hot Water Forum, PG&E invited conference attendees to the Food Service Technology Center and Applied Technology Services lab in San Ramon, CA.