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#Reference linkName / summaryLong descriptionTopic (IECC)Concept vote #1 outcomeConcept vote #2 outcomeNotes
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1PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: HP + 2ACH50 + ERV/HRVOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Requires a heat pump for space heat, air sealing to 2 air changes per hour at 50 pascals, and efficient ventilation.Packages/PointsNo (5 to 1)n/aBuilds on the credits established in this IECC-R 2024 draft proposal (REPI-18-21)
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2PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: HPWH + HP + 2ACH50 + ERV/HRVOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Requires heat pumps for domestic hot water and space heat, air sealing to 2 air changes per hour at 50 pascals, and efficient ventilation.Packages/PointsYes (5 to 1)Yes to retain current package components (4 to 2)
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3PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: HP + Water heating packageOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Requires a heat pump for space heat and a choice of 5 high-efficiency domestic hot water packages devised by NBI.Packages/PointsNo (5 to 1)n/a
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4PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: Reduce air leakage + ERV/HRV + flexOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Requires air sealing to 2 air changes per hour at 50 pascals, efficient ventilation, and a selection of additional measures.Packages/PointsNo (5 to 1)n/a
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5PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: Water heating package + reduce air leakage + flexOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Requires a choice of 5 high-efficiency domestic hot water packages devised by NBI, air sealing to 2 air changes per hour at 50 pascals, efficient ventilation, and a selection of additional measures.Packages/PointsNo (5 to 1)n/a
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6PNNL Analysis of Credit Savings for IL Climate ZonesPackage option: All 30 points flexibleOne of as many as 6 options to achieve sufficient efficiency from the residential credit table. Thirty points must be achieved and they can be achieved in any combination.Packages/PointsYes (5 to 1)Yes to advance draft code text overall to public comment (6 to 0)
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7n/aRequire heat pumps for space heatingRequire an electric heat pump be used for space heating.Energy efficiencyNo (5 to 1)n/a
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8R404.5 Electric readinessElectric ready excluding space heatingAll home end uses except space heating made electric ready (outlets at locations of non-electric appliances, appropriate capacity in breaker box, etc.).Lighting & PowerYes (7 to 0)Vote #1 stands
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9RECPI-6-21 with EV-ready rather than EV-capable requirementsEV readyEV charging made electric ready (outlets at locations of non-electric appliances, appropriate capacity in breaker box, etc.). Note that 2024 IECC proposal includes some requirements for EV capability (i.e., electrical capacity and conduit installed with no wall outlet), and the concept proposed for Illinois replaces those with EV-ready requirements.Lighting & PowerYes (7 to 0)Yes: 1 space per SFH, and follow commercial stretch code requirements for low-rise multifamily (6 to 0)See also RECPI-7-21See also RECPI-9-21
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10RED1-342-22Elec ready for space heatingAdd space heating to the end uses required to have outlets, capacity, etc.Lighting & PowerYes (6 to 1)Vote #1 stands
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11REPI-7-21Solar readinessOrientation, roof space, conduit, and capacity requirementsRenewablesYes (6 to 1)Yes to advance draft code text overall to public comment (6 to 0)
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12CECPI-2-21Low-rise solar requirementAligns low-rise multifamily solar requirements with high-rise (commercial stretch code) requirementsRenewablesYes (6 to 1)Yes to advance draft code text overall to public comment (6 to 0)
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13REPI-90-21Grid integration readiness: water heatersWater heaters must be grid-integration-readyMechanicalYes (6 to 1)Vote #1 stands
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14REPI-70-21Grid integration readiness: thermostatsThermostats must be grid-integration-readyMechanicalYes (6 to 1)Vote #1 stands
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15RECPI-5-21Existing building concepts from IECC-R 2024 public comment draft4 concepts: (1) Energy credits from table required for alterations and additions; (2) Duct testing requirement; (3) HVAC load calculation/right-sizing requirement; (4) HVAC controls requirementExisting BuildingsYes (5 to 3)Yes to advance draft code text overall to public comment (6 to 0)See also RED1-263-22 (though note this was not part of the public comment draft)
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16Existing Building Decarbonization Code, R503.3.5 Cooling equipment.Require heat pumps as AC replacementsCLASP-research-informed proposal to require central AC units, at time of retirement, be replaced only by heat pumps. Extant non-heat-pump heat sources may be converted to supplementary heat.Existing BuildingsNo (6 to 2)Yes to add to all-electric appendix (6 to 0)
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17Appendix RCZero Energy AppendixFormally include the Zero Energy Appendix as part of the stretch code.Packages/PointsYes (6 to 0)Vote #1 stands
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18n/aERI and Performance Pathway alignment with CEJA(1) Disallow use of renewables to meet ERI score (2) Revise ERI targets to reflect CEJA requirement (3) Base on site EUI, not energy costPerformance PathYes (6 to 0)Yes to align ERI pathways for electric and mixed fuel homes with CEJA (unanimous)
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19PHIUS CertificationPHIUS CertificationIn alignment with CEJA's requirement to allow certification as an allowed compliance option, name PHIUS as the accepted certification.Performance PathYes (6 to 0)Yes to advance draft code text overall to public comment (6 to 0)Discussed adding PHI on 3/24. Exact standards/certifications from PHIUS and PHI pending code language discussion.
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20Appendix language from NRDC commentAll-electric appendixAn optional-to-localities appendix that would require new buildings to be all-electric.n/an/aYes (6 to 0)
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21n/aHeat pump readinessEnsure new furnace and AC installations will be amenable to future heat pump installations. For example, ensure furnaces installed may be configured to function as supplementary heat; ensure refrigerant lines will support bidirectional refrigerant flow.Mechanicaln/aNot voted upon by the subcommitteeConcept newly considered in 3/24 subcommittee meeting. Discussion and research followed. No subcommittee action taken.
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