Presentation - Heschong Mahone Group

Controls & Demand Response / WaterHeater ReadyStakeholder MeetingCalifornia Statewide Utility Codes and Standards ProgramEnergy SolutionsHeschong Mahone GroupJune 1, 2011Conference Call Number: 661-705-2010Access Code: 88704#

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM2Agenda12:30 – 12:40 Introductions12:40 – 2:30 Upgradeable Setback Thermostats2:30 – 3:30 Residential Plug-load Controls3:30 – 4:30 Standing Losses /Water Heater ReadyCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM3IOU Support for 2013 Title 24●●●The California Investor Owned Utilities (IOUs) are activelysupporting the California Energy Commission (CEC) indeveloping the state’s building energy efficiency code (Title24)Their joint intent is to achieve significant energy savingsthrough the development of reasonable, responsible, andcost-effective code change proposals for the 2013 codeupdate and beyondAs part of the IOU effort, at the request of the CEC, we arehosting stakeholder meetings to get industry input andfeedback on our code change proposalsCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

Requirements for aSuccessful Code ChangeCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM4● For base code, a measure must:● Be cost-effective● based on the standards-induced additional first cost,maintenance costs, measure life, and energy cost savings● typically according to the Time Dependent Valuation (TDV)life-cycle costing methodology and weather data to beprovided by the California Energy Commission● Be possible to implement using equipment that isavailable from multiple providers or that is reasonablyexpected to be available following the code changeCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM5IOU Stakeholder Meetings Process● Typically holding three meetings:●●●First: present scope, request data●●●Code change direction and possible optionsMethodologyBest practices, market dataSecond: present findings●●●Results of data collection and analysisCost effectiveness“Strawman” proposed code languageThird/final: present proposed code language●●Will post code change language online in advancePhone/webinar meetings depending on feedback● CEC’s pre-rulemaking workshops scheduled forApril/May/JuneCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM6Submitting Comments● Informal Comment Process● Comments can be submitted to CASE authors,substantive comments will receive responses● Questions and responses will not be posted online,but common or frequent questions will becommunicated as necessary between stakeholders● The team will work with stakeholders to resolveissues as best we can● The CEC has a formal comment process during laterstages of the official rulemaking processCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM7Schedule: Key Dates● March 2010 – March 2011●●CEC develop foundation /methodologyIOUs conduct research and analysis, and present results atstakeholder meetings● Feb - March 2011●IOUs finalize code change proposals for submittal to CEC● April – June 2011●CEC conducts pre-rulemaking work shops● Sept 2011 – Feb 2012●CEC Rulemaking Activities, 45 Day Language● March 2012●Title 24 Adoption date● January 1, 2014●Title 24 Effective dateCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM8Meeting Protocols● Please DO NOT place your phone on HOLD● Please mute your microphone, unless you want to speak● Ask questions/comment by “chat” or by voice● We want to hear your concerns●●Opposing viewpoints are encouragedWe are seeking information, not resolution● Time is limited●●Clearly state your name and affiliation prior to speakingSpeak loudly for the people on the phone● Minutes and presentation material will be availableonline – we will distribute linkCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code ChangesJune 1, 2011

Upgradeable SetbackThermostatsCalifornia Statewide Utility Codes and Standards ProgramJoshua RasinHeschong Mahone GroupStakeholder Meeting - webinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM10Background● Why Demand Response?● Enhance grid reliability and prevent rolling blackouts● DR is more cost effective than building additional powerplants to meet peak demand (only a few hours annually)● California utilities are moving towards Peak Day pricing● Pass high cost of delivering power during critical periods on tocustomers, rather than average into summer rates● Creates an opportunity for consumers to manage their bills● Studies show that enabling technology provides ~2x theload impact as DR using pricing or incentives alone 1● Customer participation in DR programs and events areVOLUNTARY1. Faruqui and Sergici, “Household Response to Dynamic Pricing of Electricity:A Survey of the Experimental Evidence,” February 15, 2010UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM11Background● Why Demand Responsive Thermostats?● Air conditioner loads are highly coincident with peakenergy consumption in California●● NR A/C contributes 8,139 MW (15%) of peak demand● Res A/C contributes 7,917 MW (14%) of peak demandHowever other loads are also becoming more easily shed as part ofdemand response●●●●LightingRefrigeratorsWashing machinesPlug loads / power stripsUST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM12Existing Language – 112(c)●112(c) Thermostats. All unitary heating and/or cooling systems includingheat pumps that are not controlled by a central energy management controlsystem (EMCS) shall have a setback thermostat.●●1. Setback Capabilities. All thermostats shall have a clock mechanismthat allows the building occupant to program the temperature set pointsfor at least four periods within 24 hours. Thermostats for heat pumpsshall meet the requirements of Section 112(b).EXCEPTION 1 to Section 112(c): Gravity gas wall heaters, gravity floorheaters, gravity room heaters, non-central electric heaters, fireplaces ordecorative gas appliances, wood stoves, room air conditioners, and roomair-conditioner heat pumps need not comply with this requirement.Additionally, room air-conditioner heat pumps need not comply withSection 112(b). Under performance method of compliance, the resultingincrease in energy use due to elimination of the setback thermostat shallbe factored into the compliance analysis in accordance with a methodprescribed by the Executive Director.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM13Background – 2008 PCT Proposal● Programmable Communicating Thermostat(PCT) proposal for 2008 code:● Built-in one-way communication (RDS)● Add expansion slot to allow utility or service providerto utilize different communication method● Mandatory response to emergency events● Met with political resistance● This is differentUST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM142013 UST Proposal● Realize there were legitimate consumer concernswith previous proposal● No more mandatory participation in emergency events● Allow for manual override● Added requirement to allow for physically disabling thecommunication component of the thermostat● Default demand response is 4°F setback, but can bedefined by the user● Participation in DR program/event is voluntaryUST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM15112(c)2 – Communication● 2008 PCT proposal●2. Communicating Capabilities. All PCTs shall be distributed with a nonremovableRadio Data System (RDS) communications device that is compatiblewith the default statewide DR communications system , which can be used byutilities to send price and emergency signals. PCTs shall be capable of receivingand responding to the signals indicating price and emergency events as follows.● 2013 UST Proposal●2. Upgradeable Capabilities. USTs shall not include onboard communicationdevices and shall have at least one industry standard expansion/communicationport which will allow for the installation of a removable communication module. Ifthe communication module is not present, the UST shall function as aprogrammable setback thermostat. When the communication module is installedby the occupant, the UST shall be capable of both receiving and responding todemand response (DR) signals including price and emergency signals sent bythe utility. USTs, with the communication module installed, shall be capable ofreceiving and responding to the DR signals as follows:UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM16112(c)2b – Emergency Events● 2008 PCT proposal●B. Emergency Events. Upon receiving an emergency signal, the PCT shallrespond to commands contained in the emergency signal, including changingthe setpoint by any number of degrees or to a specific temperature setpoint.The PCT shall not allow customer changes to thermostat settings duringemergency events.● 2013 UST Proposal●●B. Emergency Events. Upon receiving an emergency event signal, the USTshall respond to a specific offset contained in the emergency signal forheating and cooling modes, as described in Reference Joint Appendix JA5.C. Override Function. For all DR events, including price and emergencyevents, the UST shall include a physical override function, which whenactivated by the occupant, restores the UST to the conditions just prior to thecurrent DR event.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM17112(c)3 – Required Capabilities● 2008 PCT proposal●●A. Include at least one industry standard expansion/communication port.Insertion of a utility-specific communications module shall disable the defaultstatewide communications hardware built in to the PCT unless the utilitymodule is removed or is no longer receiving a signal.E. Through user input be capable of addressability at the substation level orfiner including individual PCT.● 2013 UST Proposal●●A. The expansion/communication port shall be readily accessible to theoccupant for installing and removing the communication module without theneed to remove the UST from the wall.E. Include the capability to allow the occupant to restore the defaulttemperature offsets and setpoints to levels specified in 112(c)2A andReference Joint Appendix JA5.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM18112(c) – Exceptions●●●EXCEPTION 1 to Section 112(c): Gravity gas wall heaters,gravity floor heaters, gravity room heaters, non-central electricheaters, fireplaces or decorative gas appliances, wood stoves,room air conditioners, and room air-conditioner heat pumps neednot comply with this requirement. Additionally, room airconditionerheat pumps need not comply with Section 112(b).EXCEPTION 2 to Section 112(c): Other devices within theheating and cooling system capable of providing equivalentdemand response functionality described in Section 112(c) thatis approved by the Executive Director.EXCEPTION 3 to Section 112(c): Thermostats installed inexisting buildings including new additions to existing buildings,may be equipped with onboard communication devices providedthat the thermostats are equipped with a physical on/off switchthat cuts off power to the onboard communication device.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM19Technology● USTs would be allowed in 2 configurations:●●Plug-in interface for a (removable) communication device, forexample USNAPBuilt-in communicating device that can be completely turned offby a switch on the thermostat case (existing buildings)● Current survey found no products that exactlymeet all of these requirements●Modifications required to comply appear to be technically viable,and should be feasible by 2014UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM20Technology● Several communicating thermostats areavailable, at a variety of price pointsUST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM21Manufacturer Survey● Products include:● Home Area / Energy Network Gateway● Communication Modules● Thermostats● Software● 5 respondents● One researcher● Two respondentsfrom one company.321Product Price Range - CommunicatingThermostats1 1 1 1 120less than $40 $40 - $80 $80 - $120 $120 - $160 $160 - $200 More than$200UST Stakeholder Meeting - WebinarJune 1, 2011

PriceCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM22Preliminary Cost Data● Surveyed HomeDepot.com, amazon.com andpexsupply.comNon-communicatingCommunicating$200.00$150.00$100.00$50.00$-$159.99$44.98$9.98$59.98$199.99 $198.99$33.98$97.78$139.95$99.88$59.985-1-1 5-2 7-day 7-daytouchscreenProgramming Type● Same model● With Wi-Fi (twoUSNAP ports)● WithoutcommunicationUST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM23Preliminary Cost Analysis● 7-day touch screen programmable thermostat● $59.98 without communication● $99.88 with 2 USNAP ports (including Wi-Fi module)● Communication module adder● $96.82 – adds communication to an existing tstat● Average of these two price points: $68.36● Effective Useful life: 15 years (1999 ASHRAE)● Marginal cost of (2) thermostats over 30 years● $112.24 (assuming 3% discount rate)UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM24Savings – Residential● Identified top 1% of TDV (88 hours)● Modeled energy impact of 4 degree setback duringeach DR hour using Micropas● Single Family – Prototype D● 2,700 ft², two-story detached home● Single HVAC zone – one (1) thermostat● Multi-family prototype● 6,960 ft², two-story building● Eight individual units – eight (8) thermostatsUST Stakeholder Meeting - WebinarJune 1, 2011

TDV $CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM25Savings – Residential (SF and MF)$7,000.00Residential Savings from 88 DR hours annually(per thermostat zone)SF Savings (4 deg offset) MF Savings (4 deg offset) Tstat Cost25%$6,000.00$5,000.0020%$4,000.0015%$3,000.0010%$2,000.00$1,000.005%112.24$-CZ1 CZ2 CZ3 CZ4 CZ5 CZ6 CZ7 CZ8 CZ9 CZ10 CZ11 CZ12 CZ13 CZ14 CZ15 CZ16Climate ZoneUST Stakeholder Meeting - Webinar0%June 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM26Savings – Residential Prototypes● Savings are per thermostatSavings (TDV$) Demand Savings (kW) Energy Savings (kWh)Climate Zone SF MF SF MF SF MFCZ1 $112.23 - 0 - 5 -CZ2 $2,511.05 - 0 - 42 -CZ3 $1,706.77 $650.91 0 0 24 7.63CZ4 $2,716.80 - 0 - 45 -CZ5 $0.00 - 0 - 0 -CZ6 $2,076.18 $857.33 0 0 29 11.00CZ7 $2,707.45 - 0.81 - 40 -CZ8 $2,324.01 - 0.29 - 50 -CZ9 $5,124.98 $2,022.04 0.77 0.44 92 27.25CZ10 $5,195.12 - 1.11 - 105 -CZ11 $6,635.36 - -0.01 - 142 -CZ12 $5,686.11 $1,731.24 -0.01 0 127 34.00CZ13 $4,236.53 - 1.26 - 134 -CZ14 $3,642.67 $1,054.72 0.74 0.22 124 34.00CZ15 $3,081.54 - 0.01 - 153 -CZ16 $4,185.09 $1,258.13 1.97 0.64 82 23.00UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM27Savings – Nonresidential● Identified top 1% of TDV (88 hours)● Analysis of 2 and 4 degree setback using eQuest● Retail prototype● Three-story building with 5 zones (plus plenum) per floor● Assume 15 thermostats per building● The building is 164 ft. by 109 ft. with 30% WWR● Building area 53,630 ft² (17,877 ft² per floor)● Modeled using 2008 prescriptive envelope and HVACrequirements● Analyzed climate zones: 3, 6, 9, 12, 14, and 16UST Stakeholder Meeting - WebinarJune 1, 2011

TDV $CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM28Savings – Retail Prototype$35,000Retail 4 deg savingsTstat Cost$30,000$25,000$20,000$15,000$10,000$5,000$1,025.40$-CZ3 CZ6UST Stakeholder Meeting - WebinarCZ9 CZ12 CZ14 CZ16June 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM29Benefit Cost Analysis● Cost Effective in all Climate Zones except 1 or 5●●Assumes 88 DR event hours annually and 4 degree setbackAssumes Customer participation in DR events, which is voluntaryClimateBenefit (TDV$) Cost Benefit Cost RatioZone Res - SF Res - MF NR - Retail Res - SF Res - MF NR - Retail Res - SF Res - MF NR - RetailCZ1 $112.23 - - $112.24 - - 1.00 - -CZ2 $2,511.05 - - $112.24 - - 22.37 - -CZ3 $1,706.77 $5,207.28 $13,268.97 $112.24 $897.90 $1,025.40 15.21 5.80 12.94CZ4 $2,716.80 - - $112.24 - - 24.21 - -CZ5 $0.00 - - $112.24 - - 0.00 - -CZ6 $2,076.18 $6,858.66 $32,436.61 $112.24 $897.90 $1,025.40 18.50 7.64 31.63CZ7 $2,707.45 - - $112.24 - - 24.12 - -CZ8 $2,324.01 - - $112.24 - - 20.71 - -CZ9 $5,124.98 $16,176.32 $10,394.69 $112.24 $897.90 $1,025.40 45.66 18.02 10.14CZ10 $5,195.12 - - $112.24 - - 46.29 - -CZ11 $6,635.36 - - $112.24 - - 59.12 - -CZ12 $5,686.11 $13,849.92 $11,271.72 $112.24 $897.90 $1,025.40 50.66 15.42 10.99CZ13 $4,236.53 - - $112.24 - - 37.75 - -CZ14 $3,642.67 $8,437.72 $9,235.15 $112.24 $897.90 $1,025.40 32.45 9.40 9.01CZ15 $3,081.54 - - $112.24 - - 27.46 - -CZ16 $4,185.09 $10,065.00 $10,346.71 $112.24 $897.90 $1,025.40 37.29 11.21 10.09UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM30Proposed Language – 112(c)2●112(c) Thermostats. All unitary heating and/or cooling systems includingheat pumps that are not controlled by a central energy management controlsystem (EMCS) shall have an Upgradeable Setback Thermostat (UST) thatis certified by the manufacturer to the Energy Commission to meet therequirements of Subsections 112(c)(1), 112(c)(2), and 112(c)3 below:●2. Upgradeable Capabilities. USTs shall not include onboardcommunication devices and shall have at least one industry standardexpansion/communication port which will allow for the installation of aremovable communication module. If the communication module is notpresent, the UST shall function as a programmable setback thermostat.When the communication module is installed by the occupant, the USTshall be capable of both receiving and responding to demand response(DR) signals including price and emergency signals sent by the utility.USTs, with the communication module installed, shall be capable ofreceiving and responding to the DR signals as follows:UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM31Proposed Language – 112(c)2●●●A. Price Events. Upon receiving a price event signal, the UST shall adjustthe thermostat setpoint by the number of degrees indicated by the user forthe duration specified in the event signal. The UST, upon installation of thecommunication module by the occupant, shall default to price andemergency event offsets of +4°F for cooling and -4°F for heating when a DRsignal is present; however, occupants shall be able to change the offsets andthermostat settings at any time. The UST shall have the capability to allowoccupants to define setpoints for heating and cooling in response to pricesignals as an alternative to temperature-offsetting response, as described inReference Joint Appendix JA5.B. Emergency Events. Upon receiving an emergency event signal, the USTshall respond to a specific setpoint contained in the emergency signal forheating and cooling modes, as described in Reference Joint Appendix JA5.C. Override Function. For all DR events, including price and emergencyevents, the UST shall include a physical override function, which whenactivated by the occupant, restores the UST to the conditions just prior to thecurrent DR event.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM32Proposed Language – 112(c)3●3. Other Required Capabilities. USTs shall also have the followingcapabilities onboard, as described in Reference Joint Appendix JA5:●●●●●A. The expansion/communication port shall be readily accessible to the occupant forinstalling and removing the communication module without the need to remove theUST from the wall.B. Provide user information regarding communications system connection status, typeof event DR event, such as price or emergency, and other maintenance-relatedinformation. This information shall be on the standard UST display, using a LiquidCrystal Display, standalone indicator using Light Emitting Diodes, or other means.C. At a minimum, standardized terminal mapping of terminal numbers 1-9. Thisapproach must include 24 volt power supply, both analog and digital USTs, and mustsupport heat pumps with resistance heat strips and reversing valve in both residentialand small commercial packaged units.D. Include the capability to randomize, over a 30-minute period after the end of anevent, the time at which the thermostat returns to the programmed setpoint.E. Include the capability to allow the occupant to restore the default temperatureoffsets and setpoints to levels specified in 112(c)2A and Reference Joint AppendixJA5.UST Stakeholder Meeting - WebinarJune 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM33Proposed Language – 112(c) Exceptions●●●EXCEPTION 1 to Section 112(c): Gravity gas wall heaters,gravity floor heaters, gravity room heaters, non-central electricheaters, fireplaces or decorative gas appliances, wood stoves,room air conditioners, and room air-conditioner heat pumps neednot comply with this requirement. Additionally, room airconditionerheat pumps need not comply with Section 112(b).EXCEPTION 2 to Section 112(c): Other devices within theheating and cooling system capable of providing equivalentdemand response functionality described in Section 112(c) thatis approved by the Executive Director.EXCEPTION 3 to Section 112(c): Thermostats installed inexisting buildings including new additions to existing buildings,may be equipped with onboard communication devices providedthat the thermostats are equipped with a physical on/off switchthat cuts off power to the onboard communication device.UST Stakeholder Meeting - WebinarJune 1, 2011

Any Questions?California Statewide Utility Codes and Standards ProgramJosh RasinHeschong Mahone Group, Incrasin@h-m-g.com

35Residential Plug Load ControlsIOU Stakeholder MeetingCalifornia Statewide Utility Codes and Standards ProgramKeith KasteEnergy SolutionsJune 1, 2011

Residential Plug Load ControlsOutlineCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM36● Introduction● Proposed Code Change● Methodology● Results● Proposed Code Change Language● Questions & CommentsCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM37Residential Plug Load Controls● Standby Load is electric power consumedby electronic appliances while they areswitched off or in a standby mode.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM38Residential Plug Load Controls● 13% of total residential electric demand isstandby load. (PIER CEC-500-2008-035)● Microwave uses more energy in 24 hour periodfor standby than it does for cooking.● Residential standby load in CA requires four 500MW power plants.● Through plug load control turn off all mainspower to certain appliances when we don’t needthem.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM39Residential Plug Load ControlsPotential Compliance Paths (using existing lightingcontrols).1. Networked controller (UPB).2. Wired controller.3. Switched receptacles (outlets).4. Notes:●●●Controlled circuits are additional circuits.Controlled receptacles must be clearly marked.Automated controllers can be preset.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsNetworked ControllerCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM402011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsWired ControllerCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM41Schneider Electric Leviton Intermatic2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsSwitched ReceptacleCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM422011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMResidential Plug Load ControlsCurrent Code Requirements – Title 2443● There are no code requirements affectingresidential standby load in Title 24 2008 Part 6.● No code requirements in Title 24 2008 Part 11(mandatory or voluntary).● Some related language in draft of InternationalGreen Construction Code associated with IECCfor non-res.● Some related language in ASHRAE 90.1-2007Section 8.4.2 for non-res.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM44Residential Plug Load ControlsCode Change Proposals – Reach Code● Prescriptive:●Require installation of a Plug Load Control System that consistsof at least one designated electrical circuit with associatedreceptacles that can be controlled by a Timer Controller.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsEnergy Savings MethodologyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM45● Target computer peripherals and homeentertainment appliances:PersonalComputerWi-fi RouterPersonal VideoRecorderComponent /Rack StereoMonitorMulti-functiondeviceCordless PhoneDVD PlayerNotebookComputerPrinter, inkjetVideo GameSystemsTVDSL ModemSet Top Box,cableHome Theater ina BoxRadioCable ModemSet Top Box,satelliteCompact StereoPowerSpeakers2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMResidential Plug Load ControlsEnergy Savings Methodology (cont.)46Appliance ListFrequency in US households(%) (115 M 2006)Source DocumentPersonal computer 78.0% TIAX D5525 5Monitor 78.0% TIAX D5525Notebook computer 34.0% TIAX D5525DSL modem 20.0% TIAX D0370Cable modem 20.0% TIAX D0370Wi-fi router 40.0% sum of modemsMulti-function device, inkjet45.0%TIAX D0370Printer, inkjet 45.0% TIAX D0370Set top box, cable 67.0% TIAX D5525Set top box, satellite 61.0% TIAX D5525Personal video recorder1.7%TIAX D5525Cordless phone 108.0% TIAX D5525Video game systems 55.0% TIAX D5525Home theater in a box 22.0% TIAX D5525Compact stereo 66.0% TIAX D5525Component / rack stereo45.0%TIAX D0370DVD player 104.0% TIAX D5525TV 230.0% RECS at US EIARadio49.0%Building America reportPower speakers29.6%Building America reportPortable stereo34.8%Building America report2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMResidential Plug Load ControlsEnergy Savings Methodology (cont.)47Appliance List“on” modePower Consumption by Mode (W)“sleep/standby”mode“off” modePower ConsumptionSource DocumentPersonal computer 75 4 2 TIAX D5525Monitor 42 1 1 TIAX D5525Notebook computer 25 2 2 TIAX D5525DSL modem 5.37 0 1.37 LBNL reportCable modem 6.25 3.85 3.84 LBNL reportWi-fi router 5.37 0 1.37 Use DSL modemMulti-function device,inkjet 15.2 9.1 6.2 Building America reportPrinter, inkjet 4.9 0 1.7 Building America reportSet top box, cable 16 0 15 TIAX D5525Set top box, satellite 15 0 14 TIAX D5525Personal video recorder 27 0 27 TIAX D5525Cordless phone 4.2 3.4 2.5 Building America reportVideo game systems 36 36 1 TIAX D5525Home theater in a box 38 34 0.6 TIAX D5525Compact stereo 23 16 7 TIAX D5525Component / rack stereo 45 43 3 Building America reportDVD player 14 11 2.9 TIAX D5525TV 192 0 4 Building America reportRadio 2 0 1 Building America reportPower speakers 6 4 2 Building America reportPortable stereo 6 5 1.8 Building America report2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMResidential Plug Load ControlsEnergy Savings Methodology (cont.)48● To estimate energy savings potential, we identified twopotential “Programmed Off Intervals.”●●Turn off mains power to target appliances from midnight to 6 AMdaily, and from 10 AM to 1 PM on weekdays.Many homes may program controller differently.● Two scenarios:●●Aggressive: Assumes the home contains all of the appliancesthat are estimated to exist in more than 20% of California homes(except those that are mutually exclusive).Average: Assumes home contains all appliances at their averagefrequency in the home (e.g., frequency of radio is 49% andpower draw is 1 watt, so this scenario credits 0.49 watt for radio).2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsCost MethodologyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM49● Components and Costs using RS Means:Components Qty Unit Cost ExtendedCostRS Means linenumberTimer Controller 1 $64.95 $64.95 #260590.102110Breaker 1 $76.00 $76.00 #262416.200100Receptacle 6 $49.50 $297.00 #260590.104015Replacement TimerController1 $101.19 $101.19 (Replace controllerafter 15 years)$539.14 Total Cost1.05 RS Means Californiamultiplier$566.27 Measure Cost2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsCost and Savings ResultsCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM50● The aggressive scenario achieved 80.14 watts powerreduction during the Programmed Off Interval. The 30year cost savings for midnight to 6 AM daily and 10 AMto 1 PM weekdays would be $876.00. This is a LifeCycle Cost of -$309.00. This measure is cost effectivefor the aggressive scenario using Reach TDV.● The average scenario achieved 56.06 watts powerreduction during the Programmed Off Interval. The 30year cost savings for midnight to 6 AM daily and 10 AMto 1 PM weekdays would be $590.00. This is a LifeCycle Cost of -$24.00. This measure is cost effective forthe average scenario.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

Residential Plug Load ControlsCost and Savings ResultsCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM51●LCC Resultsa b c d e f gMeasureLife(Years)ResidentialPlug LoadControlAdditional Costs 1 –Current Measure Costs(Relative to Basecase)($)Per Newly ConstructedResidenceAdditional CostPost-AdoptionMeasure Costs(Relative to Basecase)($)Per Newly ConstructedResidencePV of Additional 3Maintenance Costs(Savings) (Relative toBasecase)(PV$)Per Newly ConstructedResidencePV of 4Energy CostSavings(Reach TDV) –Per NewlyConstructedResidence(PV$)LCC Per PrototypeBuilding($)(c+e)-fBased on CurrentCostsAggressiveSavingsScenarioAverageSavingsScenario30 $460 $460 $106 $876 -$30930 $460 $460 $106 $590 -$242011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM52Residential Plug Load ControlsProposed Code Language●●A Plug Load Control System shall be installed that consists of atleast one designated electrical circuit with associated receptaclesthat can be controlled by a Timer Controller.The designated circuit and the associated receptacles shall meet therequirements below:●●The receptacles attached to this circuit shall be located in the livingroom (2), a bedroom (2), and an office (2), or bedroom capable ofserving as an office.These receptacles must be clearly marked as receptacles withintermittent power.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM53Residential Plug Load ControlsProposed Code Language (cont.)●The Timer Controller shall be a time-of-day operated control devicecapable of turning receptacles on and off at specific programmedtimes, and shall meet the requirements below:●●●●The device shall be wall mounted in a convenient locationThe device shall include a time clock that can be set by the userThe device shall include a Program Mode in which on/off schedules canbe programmed based on time of day, and day of week (to distinguishbetween weekends and weekdays)●●The device shall have a factory preset schedule in the Program mode to cutmains power from midnight to 6:00 AM daily.The device shall be capable of multiple on/off schedules per day.The device shall include an On Mode in which mains power is suppliedto the receptacles. This mode shall be capable of overriding theProgram mode until the next scheduled on/off event of the Programmode.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM54Residential Plug Load ControlsProposed Code Language (cont.)●The Timer Controller shall be a time-of-day operated control devicecapable of turning receptacles on and off at specific programmedtimes, and shall meet the requirements below:●●●The device shall include an Off Mode in which mains power is notsupplied to the receptacles. This mode shall be capable of over-ridingthe Program mode until the next scheduled on/off event of the Programmode.The device shall include a Permanent Off Mode in which the mainspower to the receptacles is cut off and remains off until the TimerController is toggled back on. At that time, normal programming willresume. This is to allow the circuit to be off for extended periods of time,such as vacation.The device shall include a Permanent On Mode. Kn this mode thecircuit would behave like all the other circuits in the house. There wouldbe no Programmed Off Interval.2011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM55Residential Plug Load Controls?QUESTIONS & COMMENTSKeith KasteEnergy Solutionskkaste@energy-solution.com510-482-4420 x2152011 Title 24 CASE Process UpdateCA Utilities 2011 Title 24 Stakeholder Meeting forCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes, June 1, 2011Proposed Code Changes

56High Efficiency Water Heater ReadyCalifornia Statewide Utility Codes and Standards ProgramYanda ZhangHeschong Mahone Group, Inc.June 1, 201106/01/2011

HE Water Heater ReadyPresentation OverviewCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM57● Potential Code Change Proposals● Typical Practice● Federal standards/Energy Star● CA market● Cost Effectiveness● Proposed Code Language● Next StepsCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMPotential Code Change Proposals58● Residential buildings using gas water with heatinput less than 75,000 Btu/hr● Electrical connection: 120 volt receptacle● Vent system: condensing compatible● Condensate: drain line (into building drain or throughsidewall)● Gas supply: ¾ inch pipe● Flue damper – not considered● Water heater blanket – not effectiveCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMDOE Rulemaking Considerations59Gas-fired StorageGas-fired Instantaneous0.59 - Standing Pilot, 1” ins 0.62 - Standing pilot (BASELINE)0.62 - Standing Pilot, 1.5” ins 0.69 - Standing Pilot, Improved HX0.63 - Standing Pilot, 2” Ins 0.78 - Electronic Ignition, Improved HX0.64 - Electronic ignition, 1” ins, powervent0.65 - Electronic ignition, 1.5” ins,power vent0.67 - Electronic ignition, 2” ins, powervent0.77 - Condensing, 2” ins, power vent0.80 - Electronic Ignition, Power Vent0.82 - Electronic Ignition, Power Vent, ImprovedHX0.84 - Electronic Ignition, Power Vent, ImprovedHX0.85 - Electronic Ignition, Power Vent, Direct Vent,Improved HX, Low NOx Burner0.92 - Electronic Ignition, Power Vent, Direct Vent,Condensing0.95 - Electronic Ignition, Power Vent, Direct Vent,Condensing (Max-Tech)CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyFederal Standards● Effective: April 16, 2015● Require high efficiency performance:● Gas Storage: Condensing for >55 Gal● Gas Instantaneous: Power ventCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM60EF = 0.615 EF = 0.758EF = 0.82CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyEnergy StarCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM61High-Efficiency Gas StorageENERGYSTAR CriteriaEnergy FactorFirst-HourRatingWarrantySafetyGas Storage(Ending8/31/2010)EF >= 0.62FHR >= 67gallons per hourWarranty >= 6years on sealedsystemANSIZ21.10.1/CSA 4.1Gas Storage(Beginning9/1/2010)EF >= 0.67FHR >= 67gallons per hourWarranty >= 6years on sealedsystemANSIZ21.10.1/CSA 4.1Gas CondensingENERGYSTAR CriteriaEnergy FactorFirst-HourRatingWarrantySafetyGas Condensing EF >= 0.8FHR >= 67gallons per hourWarranty >= 8years on sealedsystemANSIZ21.10.1/CSA 4.1CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMCalifornia Low NOx Requirement62● Three districts, 19 counties, 27 millionpopulation (70% of California)● South Coast AQMD● BAY AREA AQMD● San Joaquin Valley APCD● Power vent is needed for low NOx burnersCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMRegulatory Demand & Market Barrier63● High Efficiency Water Heater is Required for●●●●●Instantaneous water heaterStorage water heater w/ more than 55 galLow NOx water heatersEnergy StarNext cycle of DOE rulemaking● Most water heaters are replaced when they are broken●●Fast services are needed – no retrofit; limited optionsHome owners not aware of regulations (current & future) – notaware of future impactCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMCost Effectiveness Analysis Method64● New Construction Cost Effective Options● Cost Savings – Avoided Retrofit Cost● New Construction – initial cost for compliance● 100% stainless steel vent – highest cost scenario● Replacement upgrade – avoid retrofit cost● DOE standards upgrade● Upgrade to instantaneous WH● Upgrade to 55 gallon● Upgrade to Energy Star WHCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM65HE Water Heater ReadyGas Water Heater Options● DOE Rulemaking Supporting Documents (2010$)Water Heater OptionsEnergyFactorRetailPriceGas-fired Storage0.62 - Standing Pilot, 1.5” ins 0.62 $6910.63 - Standing Pilot, 2” Ins 0.63 $9290.64 - Electronic ignition, 1” ins, power vent 0.64 $9490.65 - Electronic ignition, 1.5” ins, power vent 0.65 $9810.67 - Electronic ignition, 2” ins, power vent 0.67 $1,2430.77 - Condensing, 2” ins, power vent 0.77 $1,243Gas Instantaneous0.82 - Electronic Ignition, Power Vent, Improved HX 0.82 $1,1680.84 - Electronic Ignition, Power Vent, Improved HX 0.84 $1,7750.85 - Electronic Ignition, Power Vent, Direct Vent, Improved HX, Low NOx Burner 0.85 $1,8820.92 - Electronic Ignition, Power Vent, Direct Vent, Condensing 0.92 $2,0470.95 - Electronic Ignition, Power Vent, Direct Vent, Condensing (Max-Tech) 0.95 $2,261CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyGas Water Installation Costs● DOE Rulemaking Supporting Documents●●●CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMVenting: Horizontal install, 12 ft longAlready installed in garage, need to bring close to WHCondensate drain: building drainage or outside through side wall66NewConstructionRetrofit(Upgrade)VentingPlastic $158 $204Type-B Stainless Steel $571 n/aType-B steel $482 n/aElectric Connection (120V) $0 $259CondensateDrain Connection $37 $113Neutralizer Condensate Filter $86 $86Condensate Pump $0 $403/4" Gas pipe $47 $689CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMNew Construction Cost Effectiveness67●●●30 year gas TDV, 12 year useful lifeInclude the neutralizer costNot include federal tax credit for condensing WH (30% installed cost)Water Heater OptionsVentingOptionInstallationCostInstalledCostEnergyConsumption(30 Yr TDV)Gas-fired Storage0.62 - Standing Pilot, 1.5” ins Type-B steel $482 $1,173 $5,678 $7,5680.63 - Standing Pilot, 2” Ins Type-B steel $482 $1,411 $5,588 $7,9360.64 - Electronic ignition, 1” ins, power vent Plastic $194 $1,229 $5,500 $7,7660.65 - Electronic ignition, 1.5” ins, power vent Plastic $194 $1,261 $5,416 $7,7420.67 - Electronic ignition, 2” ins, power vent Plastic $194 $1,523 $5,254 $8,0850.77 - Condensing, 2” ins, power vent Plastic $194 $1,523 $4,572 $7,394Gas Instantaneous0.82 - Electronic Ignition, Power Vent, Improved HX Plastic $241 $1,495 $4,293 $7,0130.84 - Electronic Ignition, Power Vent, Improved HX Plastic $241 $2,102 $4,191 $8,0840.85 - Electronic Ignition, Power / Direct Vent, Improved HX, Low NOx Plastic $241 $2,209 $4,141 $8,2410.92 - Electronic Ignition, Power / Direct Vent, Condensing Plastic $241 $2,373 $3,826 $8,2410.95 - Electronic Ignition, Power / Direct Vent, Condensing (Max-Tech) Plastic $241 $2,588 $3,705 $8,533LCCCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM68HE Water Heater ReadyCost Savings●●Incremental cost compared to the baseline of:Type-B steel vent / electric plug away from WHno condensate drain / ½ inch gas lineIf more than 13% of the market upgrade to HE water heaters, netcost savings > 0NewConstructionRetrofit(Upgrade)VentingPlastic $204Type-B Stainless Steel $89 -Electric Connection (120V) $0 $259CondensateDrain Connection $37 $113Condensate Pump $0 $403/4" Gas pipe $47 $689Total $173 $1306CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyMarket Trend●●CALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMCalifornia 2006-08 utility new construction programs evaluation“The percentage of water heaters that were instantaneous increased from 0% in homesbuilt under the 1995 standards to 24% in homes built under the 2005 standards.”DOE rulemaking – AHRI shipment data69●Manufacturers reported very fast adoption of HE water heater●2011 ACEEE Hot Water Forum (Mike Parker of A.O. Smith)CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCompliance BenefitsCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM70● Water heating represents 20% to 80% of theTDV energy budget● We’ve seen large penetration of instantaneouswater heaterWater Heater OptionsDHW TDVReductionTotal TDVReductionIncrementalInstalledCost0.77 – Storage: Condensing, 2” ins, power vent 25% 5% - 20% $3500.82 – Instantaneous: Electronic Ignition, PowerVent, Improved HX33% 8% - 27% $322CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyProposed Code LanguageCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM71● Section 150(n) - Existing(n) Water Heating Recirculation Loops Serving MultipleDwelling Units. Water heating recirculation loopsserving multiple dwelling units shall meet therequirements of Section 113(c)5.CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAMProposed Code Language – Cont.72●Section 150(n) - New(n) Water Heating System.1. Gas Water Heater. Systems using gas or propane water heaterswith heat input less than 75,000 Btu per hour shall meet thefollowing conditions:A. A 120V electrical receptacle shall be installed within 3 feet from thewater heater without partition walls in between; andB. The vent system shall be compatible with condensing water heaters,andC. A condensate drain line shall be installed that meets local jurisdictionrequirements, andD. A ¾ inch gas supply line shall be installed.2. Recirculation Loops Serving Multiple Dwelling Units. Waterheating recirculation loops serving multiple dwelling units shallmeet the requirements of Section 113(c)5.CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyNext StepsCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM73● Statewide Energy Savings Analysis● Impact on adoption of high efficiency waterheatersCA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes06/01/2011

HE Water Heater ReadyCALIFORNIA STATEWIDE UTILITIES CODES AND STANDARDS PROGRAM74?QUESTIONS & COMMENTSYanda Zhangzhang@h-m-g.com916-962-7001CA Utilities 2013 Title 24 Stakeholder Meeting for Proposed Code Changes05/13/2011