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Home My WebLink About2020-03-03 Item 6 - Presentation Existing Home 1 3/3/20Council Conservation SectionOffice of Sustainability Economic Development Department of OrdinanceEnergy Sustainability Background 2 sale)”ofpointat(nottimeinpointspecificaatbuildingsexistinginretrofitssavings‐energy“RequireClimate Change Working Group Recommendation Background 3 homesmultifamily&familysingle of13%RetrofitMetric:PerformanceUpgradesEfficiencyEnergy-3.3 Objectivewww.cvclimatechallenge.comChallengeChula Vista Climate Action •EvaluationFree Resource & Energy Business o Ups-Home Energy & Water Check o cost evaluations-Residential and commercial no•www.gogreenfinancing.comGo Green Financing o Financing •will address commercial buildingsBenchmarking ordinance being created Background 4 wide study created by utilities for local governments-State Policy Overview 5 required to comply with current building code as a result of the addition otherwise notPrescribed upgrades will apply to the remainder of the home –buildings4 unit buildings and individually owned units in larger residential -Applies to all 1–to also perform specific energy upgradesthat are performing additions or remodels before 2006 Require homes built • Policy Overview 6 Average home expected to save approximately $170 per year in utility costs•Upgrades estimated to payback within 7.9 to 10.7 years with an average of 8.3•Required measures are cost effective:does not exceed 20%from among the required measures which applicants can propose a more limited set cost without those measures, permit this policy exceeds 20% of the overall project energy efficiency measures required under -Project Value Cutoff •If unique considerations are found: Policy Overview 7 Water Heating Package 2)LED Lighting1)2005-1978Air Sealing5)Duct Sealing4)R38 Attic Insulation3)Water Heating Package 2)LED Lighting1)Duct Sealing4)R38 Attic Insulation3)Water Heating Package 2)LED Lighting1)1978-PreClimate Zone 10Climate Zone 7Year Built zonePrescribed single family upgrade measures depend on home age and climate • Policy Overview 8 Policy Overview 9 summer days.reflected away from your home and minimize the need for cooling on hot Cool roofs help save energy by increasing the amount of solar energy that get Cool Roof6and increases your energy bills and outside pollutants to enter your home. built a decade earlier. This means the air you paid to heat or cool can escape Houses built over the past five years are over 20 percent tighter than those Air Sealing5dust or other indoor air quality concerns to enter your rooms. reaches its destination. Additionally, leaky ducts can allow a pathway for that up to 30% of the air you are paying to heat or cool is being lost before it Duct leakage can be as high as 30% in average California homes. This means Duct Sealing4Attic insulation helps your home maintain a stable temperature. Attic Insulation3of heat that is lost on its way to you. usage, insulating the tank and exposed piping you can minimize the amount Water heating can account for up to 50% of an average home’s natural gas Water Heating Package2LED lights can use up to 75% less energy than incandescent bulbsLED Lighting1BenefitNumberMeasure Energy Efficiency Measures 10 by all homesMandatory measure required Required in Homes: waste heat, average bulbs last 25 times longer Reduces energy use up to 70%, reduces Benefits: exempt if not compatible with LED bulbsrecommend Energy Star bulbs. Historic fixtures Not applicable to lights plugged into outlets, Notes: Halogen lamps with LED bulbs incandescent, CFL and screw‐in Replace Measure: 1) Lighting Energy Efficiency Measures 11 with water efficiency measures insulated. Historic fixtures exempt if not compatible Only accessible hot water pipes need to be Notes: bathroom faucetsfor gpmfor showerheads and kitchen faucets, and 1.2 ) gpmto maximum flow rates of 1.8 gallons per minute (Upgrade sink and shower fittings -C. Low Flow Fixtures water pipes hot all accessibleInsulate -B. Hot Water Pipe Insulation (required on water heaters made after April 2015) 16 insulation -storage water heaters without existing RInsulate exterior of -A. Water Heater Blanket Measure: 2) Water Heating Package Energy Efficiency Measures 12 Approximately 47% of expected applications –all homes in Climate Zone 10 (zip code 91914) Pre 1978 homes in Climate Zone 7 and Required in Homes: reduces heating and cooling energy use and costsHelps home maintain stable temperature and Benefits: exempt. Homes without vented attics are exempt.19 in Climate Zone 10 are -Climate Zone 7 or greater than R5 in -Homes with existing insulation greater than RNotes: 38-spaces to meet RAdd attic insulation in buildings with vented attic Measure: 3) Attic Insulation Energy Efficiency Measures 13 Approximately 47% of expected applications –and all homes in Climate Zone 10 (zip code 91914) 1978 homes in Climate Zone 7 -PreRequired in Homes: distribution, increases indoor air qualityReduces energy lost from heating and cooling air Benefits: Require photo of contractor gauge for compliance. Notes: system airflowreducing duct leakage to be equal to or less than 15% of Air seal all accessible ductwork with a goal of Measure: 4) Duct Sealing Energy Efficiency Measures 14 Approximately 14% of expected applications –91914) Only Climate Zone 10 (zip code Required in Homes: used to heat or cool homesIncreases home comfort and reduces energy Benefits: performed after air sealing. have a BPI Combustion Appliance Safety Inspection with one or more vented combustion appliances MUST Only accessible areas need to be sealed. Homes Notes: accessible areas of the buildingApply air sealing practices throughout all Measure: 5) Air Sealing Energy Efficiency Measures 15 indoor air safety combustion appliance ventilation and therefore If homes are sealed too tight it can impact •conditionsventilation even under worst case scenario •appliance that vents to the homeOnly required where a home has a combustion •Only required when home does air sealing•BPI Combustion Appliance Safety Inspection Energy Efficiency Measures 16 homes in Climate Zone 10 (zip code 91914) . Pre 1978 homes in Climate Zone 7 and all re‐roofingincludes Only applicable if project Required in Homes: used for coolingReduces home heat gain and reduces energy Benefits: already covered)Only for steep slope roofs (shallow slope roofs Notes: 0.75 or higher reflectance of 0.25 or higher and thermal emittance of Roof Rating Council (CRRC) with an aged solar Install a roofing product rated by the Cool Measure: 6) Cool Roof Policy Flexibility 17 equivalent usage-annual electricity and gassite photovoltaics in place offsetting at least 95% of the -Home has on•of at least 8 out of 10Home achieves a Department of Energy (DOE) Home Energy Score (HES) •that will achieve equivalent of greater energy savings than the prescriptive packages. An alternative, voluntary, set of energy measures is concurrently being completed •-Participation in low•Similar measures have already been completed•homes that are already efficient. Includes exemptions where: Allow flexibility for homes to take more effective paths to efficiency or for Policy Flexibility 18 Accessory Dwelling Unit (ADU)•Medically necessary improvements•Projects exempt if consisting solely of:circumstancescharacteristics of home or other special effective due to unique -infeasible or not be costPrescribed measures would be technically •Unique Homes Results 19 make retrofits covered homes to voluntarily -Combined with outreach to encourage nonreduce carbon pollutionmore than $1 million per year in 2040), increase indoor air quality, save on utility bills ($559,000 per year in 2030 and Will help residents over first 10 yearsmetric tons3,200 and reduce GHG emissions by 3,800 units Estimated to affect Next Steps 20 5/8/20Effective Date (30 days following CEC approval)4/9/20(expected)File with California Building Standards Commission 4/8/20Receive CEC Response (expected)3/4/20Submit California Energy Commission (CEC) Application 3/10/20City Council (second reading)3/3/20Present to City Council (first reading)DateTask / Milestone THANK YOU 21 cdowns@chulavistaca.gov2442-(619) 476Conservation SpecialistCory Downs moon-Ban Ki–grandchildren.” leave our children and we want, a world we’re proud to “Together we can build a world State Requirements 22 HVAC or Water Heating (DHW) equipment) that is regulated by the federal government (e.g., May not specifically require high efficiency equipment •Must be cost effective•more stringent than state requirementsust be M-Resulting in buildings using less energy •Filed with the State, and accessible to public•homes minimally effected.Pre 2006 –Updated for each new Title 24 cycle •Compliant with all state laws•Local Energy Code Requirements Policy Overview 23 14%43%2005-1978NA 33%1978-PreClimate Zone 10Climate Zone 7Year Built remodelrequired to comply with current building code as a result of the addition or otherwise notPrescribed upgrades will apply to the remainder of the home •Prescribed upgrade measures depend on home age and climate zone•