BUILDING REGULATIONS
INTERNATIONAL ENERGY CONSERVATION CODE
Section 10-11-1. Title. This ordinance shall be known and cited as the International Energy Conservation Code.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-2. Adoption of the International Energy Conservation Code. The International Energy Conservation Code, 2021 Edition, as adopted by the International Code Council, Inc., 500 New Jersey Avenue, NW, 6th Floor, Washington, DC 20001 is hereby adopted by reference subject to the additions, amendments, and appendices set forth below in Section 10-11-6. The IECC includes appendices CB and RB by the International Code Council, and new appendices CD and RD as set forth below. The subject matter of the IECC includes the design of energy-efficient and high-performance buildings and related energy uses including mechanical, lighting, power systems, and electric vehicle infrastructure for the purpose of protecting the public health, safety, and welfare. The 2021 IECC, as amended in this Article, shall apply to all property within the City of Northglenn.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-3. Copies on File. At least one certified copy of the International Energy Conservation Code, 2021 Edition, as adopted is on file in the office of the City Clerk and may be inspected during regular business hours.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-4. Purpose. The purpose of this Code is to provide minimum standards to safeguard life or limb, health, property and public welfare by regulating energy efficient buildings and structures.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-5. Application. The provisions of this Article and the provisions of the International Energy Conservation Code and Appendices, 2021 Edition, adopted by reference shall apply to every building or structure located either within or without the corporate limits of the City of Northglenn, the use of which the City has jurisdiction and authority to regulate.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-6. Amendments to the International Energy Conservation Code, 2021 Edition.
(a)
Section C101.1 Title is retained in its entirety with the following amendments:
C101.1 Title. This code shall be known as the International Energy Conservation Code of the City of Northglenn and shall be cited as such. It is referred to herein as "this code."
(b)
Section C103.2 Information on construction documents, is amended by modifying item 6 and adding items 14, 15, and 16 as follows:
6. Mechanical and service water heating systems and equipment types, sizes, fuel source, and efficiencies.
14. Details of additional electric infrastructure, including branch circuits, conduit, or pre-wiring, and panel capacity in compliance with the provisions of this code.
15. Location of pathways for routing of raceways or cable from the solar ready zone to the electrical service panel.
16. Location of designated EVSE spaces, EVSE Universal spaces, EV-Ready spaces, and EV-Capable spaces in parking facilities.
(c)
Section C104.2 "Schedule of Permit Fees."
See IBC Section 109.2 "Schedule of Permit Fees."
(d)
Section C104.3 "Work Commencing before Permit Issuance" is amended by deleting the section in its entirety and hereby amended to read as follows:
Section 104.3 Double Fee. Where a licensed contractor or an individual who starts or proceeds with work for which a permit is required by this Code prior to obtaining said permit, the fees specified in Section 109.2" Schedule of Permit Fees" of the City of Northglenn Building Code shall be doubled. Such fee shall be paid whether or not such permit is obtained, but the payment of such fee shall not relieve any persons from fully complying with the requirements of this Code.
(e)
Section C104.5 "Refunds" is amended by deleting the section in its entirety and replacing it with the following:
See IBC Section 109.6. "Refunds."
(f)
Section C105.2.5 "Electrical system" is amended to read:
C105.2.5 Electrical system. Inspection shall verify lighting system controls, components, meters, and additional electric infrastructure, as required by the code, approved plans and specifications.
(g)
Section C109 "Stop Work Order" is hereby amended to read as follows:
Issuance. The stop work order shall be in writing and shall be given to the owner. If no such person can be contacted at the property, it shall be posted in a conspicuous location on the property involved. Upon issuance of the stop work order, the cited work shall immediately cease. The stop work order shall cite the specific code section violated, state the reason for the order, and state the conditions under which the cited work will be permitted to resume.
(h)
Section C110 "Board of Appeals" is amended by deleting the section in its entirety and replacing it with the following:
IECC Section C110 "Board of Adjustment"
C110.1 General: Appeals of orders, decisions or determinations made by the Building Official relative to the application and interpretation of this Code may be made to the Northglenn Board of Adjustment. Appeals shall be in accordance with Chapter 11 of the Northglenn Municipal Code.
(i)
Section C202 GENERAL DEFINITIONS is amended to add or revise the following definitions in alphabetical order:
ALL-ELECTRIC BUILDING. A building and building site that contains no combustion equipment, or plumbing for combustion equipment, and that uses heat pump technology as the primary supply for heating, cooling, and service water heating loads.
COMBUSTION EQUIPMENT. Any equipment or appliances used for space heating, cooling, water heating (including pools and spas), cooking, clothes drying or lighting that uses natural gas, propane, other fuel gas, or fuel oil.
HORTICULTURAL LIGHTING. Electric lighting used for horticultural production, cultivation or maintenance.
MIXED-FUEL BUILDING. A building and building site that contains combustion equipment, or plumbing for combustion equipment, for space heating, cooling, water heating (including pools and spas), cooking, or clothes drying.
PHOTOSYNTHETIC PHOTON EFFICACY (PPE). Photosynthetic photon flux emitted by a light source divided by its electrical input power in units of micromoles per second per watt, or micromoles per joule (umol/J) between 400-700nm as defined by ANSI/ASABE S640.
(j)
Section C401.2.1 International Energy Conservation Code, item 2, is amended to read as follows:
2. Total Building Performance. The Total Building Performance option requires compliance with Section C407 and, for mixed fuel buildings, Section C405.13 and 10 credits from Tables C406.1(1) through C406.1(5).
(k)
Section C401.2.2 ASHRAE 90.1 is amended to read as follows:
C401.2.2 ASHRAE 90.1. Commercial buildings shall comply with the requirements of ANSI/ASHRAE/IESNA 90.1 and, for mixed fuel buildings, Section C405.13 and 10 credits from Tables C406.1(1) through C406.1(5).
(l)
Section C402.3 Roof solar reflectance and thermal emittance, first sentence, is amended as follows, with the other parts of the section to remain:
C402.3 Roof solar reflectance and thermal emittance. Low-sloped roofs directly above conditioned spaces shall comply with one or more of the options in Table C402.3.C404.2.1 High input service water-heating systems, item 1 under exceptions, is amended to read as follows:
1. Where not less than 50 percent of the annual service water heating requirement is provided by on-site renewable energy or site-recovered energy not including any capacity used for compliance with Section C406 of this code, the minimum thermal efficiency requirements of this section shall not apply.
(m)
Section C404.10 is added as follows:
C404.10 Water heating equipment location. Water heaters with combustion equipment shall be located in a space with the following characteristics:
Minimum dimensions of 3 feet by 3 feet by 7 feet high.
Minimum volume of 760 cubic feet, or the equivalent of one 16-inch by 24-inch grill to a heated space and one 8-inch duct of no more than 10 feet in length for cool exhaust air.
Contains a condensate drain that is no more than 2 inches higher than the base of the installed water heater and allows natural draining without pump assistance, installed within 3 feet of the water heater.
Exceptions:
1. Instantaneous water heaters located within 10 feet of the point of use.
2. Water heats with an input capacity of more than 300,000 Btu/h.
(n)
Section C405.4 Lighting for plant growth and maintenance is re-titled "Horticultural Lighting" and amended to read as follows:
C405.4 Horticultural Lighting. Permanently installed luminaires shall have a photosynthetic photon efficacy of not less than 1.7 umol/J for horticultural lighting in greenhouses and not less than 1.9 umol/J for all other horticultural lighting. Luminaires for horticultural lighting in greenhouses shall be controlled by a device that automatically turns off the luminaire when sufficient daylight is available. Luminaires for horticultural lighting shall be controlled by a device that automatically turns off the luminaire at specific programmed times.
(o)
Section C405.5.3 Gas lighting is amended to read as follows:
Section C405.5.3 Gas lighting. Gas fired lighting appliances are not permitted.
(p)
Table C405.12.2 ENERGY USE CATEGORIES is amended to add a new line at the end:
Electric vehicle charging | Electric vehicle charging loads. |
(q)
A new Section C405.13 is added to read as follows:
C405.13 Additional electric infrastructure. All combustion equipment shall be provided with a junction box that is connected to an electrical panel by continuous raceways that meet the following requirements:
The junction box, raceway, and bus bar in the electric panel and conductors serving the electric panel shall be sized to accommodate electric equipment sized to serve the same load as the combustion equipment.
The panel shall have reserved physical space for a three-pole circuit breaker.
The junction box and electrical panel directory entry for the dedicated circuit breaker space shall have labels stating "For future electric equipment."
The junction box shall allow for the electric equipment to be installed within the same place of the combustion equipment that it replaces.
Exceptions:
1. Warm air furnaces serving spaces that also have space cooling.
2. Water heating equipment with an input capacity more than 300,000 Btu/h
3. Industrial, manufacturing, laboratory, and high hazard occupancy combustion equipment.
(r)
Section C406.1 Additional energy efficiency credit requirements, first sentence, is amended to read as follows with the other parts of the paragraph and section to remain:
C406.1 Additional energy efficiency credit requirements. New all-electric buildings shall achieve a total of 10 credits and new mixed-fuel buildings shall achieve a total of 20 credits from Tables C406.1(1) through C406.1(5) where the table is selected based on the use group of the building and from credit calculations as specified in relevant subsections of C406.
(s)
TABLE C406.1(2) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP R AND I OCCUPANCIES is retained in its entirety, except Sections C406.7.3 and C406.7.4 in Climate Zone 5B are amended to read as follows:
SECTION | CLIMATE ZONE 5B |
C406.7.3: Efficient fossil fuel water heater (b) | 3 |
C406.7.4: Heat pump water heater (b) | 9 |
ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP R AND I OCCUPANCIES
(t)
TABLE C406.1(3) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP E OCCUPANCIES is retained in its entirety, except Sections C406.7.3 and C406.7.4 in Climate Zone 5B are amended to read as follows:
SECTION | CLIMATE ZONE 5B |
C406.7.3: Efficient fossil fuel water heater (a) | N/A |
C406.7.4: Heat pump water heater (a) | 3 |
ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP E OCCUPANCIES
1. For schools with showers or full-service kitchens.
(u)
TABLE C406.1(5) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR OTHER OCCUPANCIES is retained in its entirety, except Sections C406.7.3 and C406.7.4 in Climate Zone 5B are amended to read as follows:
ADDITIONAL ENERGY EFFICIENCY CREDITS FOR OTHER (a) OCCUPANCIES
SECTION | CLIMATE ZONE 5B |
C406.7.3: Efficient fossil fuel water heater (b) | 3 |
C406.7.4: Heat pump water heater (b) | 9 |
1. Other occupancies include all groups except Groups B, E, I, M, and R.
2. For occupancy groups listed in Section 406.7.1
(v)
TABLE C407.2 REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE is retained in its entirety and amended to add the following items:
REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE
SECTION | TITLE |
Envelope | Envelope |
C401.3 | Thermal envelope certificate |
C402.2.4 | Slabs-on-grade |
C402.2.6 | Insulation of radiant heating system |
C402.3 | Roof solar reflectance and thermal emittance |
(w)
CB103.1 General, first sentence, is amended to read as follows, with the rest of the paragraph and section to remain:
CB103.1 General. A solar-ready zone shall be located on the roof of all new buildings that are subject to the commercial provisions of the IECC and that are oriented between 110 degrees and 270 degrees of true north or have low-slope roofs.
(x)
Appendix CD is added as follows:
APPENDIX CD
EV READINESS - COMMERCIAL
CD101. Purpose and intent. The purpose and intent of this Appendix CD is to accommodate the growing need for EV charging infrastructure. Including these measures during initial commercial construction substantially reduces the costs and difficulty of installing EV infrastructure at a later date.
CD102. Applicability. This Appendix CD shall apply to all new commercial construction to which the current International Building Code applies.
Section CD103. Definitions.
AUTOMOBILE PARKING SPACE. A space within a building or private or public parking lot, exclusive of driveways, ramps, columns, office, and work areas, for the parking of an automobile.
DIRECT CURRENT FAST CHARGING (DCFC) EVSE: EV power transfer infrastructure capable of fast charging on a 100A or higher 480VAC three-phase branch circuit. AC power is converted into a controlled DC voltage and current within the EVSE that will then directly charge the electric vehicle.
EV LOAD MANAGEMENT SYSTEM: A system designed to allocate charging capacity among multiple EVSE and that complies with the current National Electric Code.
ELECTRIC VEHICLE (EV). An automotive-type vehicle for on-road use, such as passenger automobiles, buses, trucks, vans, neighborhood electric vehicles, and electric motorcycles, primarily powered by an electric motor that draws current from an electric source.
ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE). Equipment for plug-in power transfer including the ungrounded, grounded, and equipment grounding conductors, and the electric vehicle connectors, attachment plugs, personal protection system and all other fittings, devices, power outlets or apparatus installed specifically for the purpose of transferring energy between the premises wiring and the electric vehicle.
ELECTRIC VEHICLE SUPPLY EQUIPMENT INSTALLED SPACE (EVSE space). An automobile parking space that is provided with a dedicated EVSE connection.
ELECTRIC VEHICLE CAPABLE SPACE (EV CAPABLE SPACE). A designated automobile parking space that is provided with electrical infrastructure, such as, but not limited to, raceways, cables, electrical capacity, and panelboard or other electrical distribution equipment space, necessary for the future installation of an EVSE.
ELECTRIC VEHICLE READY SPACE (EV READY SPACE). An automobile parking space that is provided with a branch circuit and either an outlet, junction box or receptacle, that will support an installed EVSE.
UNIVERSAL VEHICLE CHARGING STATION. A charging station installed in a parking space for a minimum vehicle width of 120 inches (3048 mm) with 36 inch access aisles (915 mm) on each side.
CD104 Electric vehicle power transfer infrastructure. New parking facilities shall be provided with electric vehicle power transfer infrastructure in compliance with Sections CD104.1 through CD104.6, CD105, and CD106.
CD104.1 Quantity. The number of required EVSE spaces, EV ready spaces, and EV capable spaces shall be determined in accordance with this Section and Table CD104.1 based on the total number of automobile parking spaces and shall be rounded up to the nearest whole number. For R-2 buildings, the Table requirements shall be based on the total number of dwelling units or the total number of automobile parking spaces, whichever is less.
1. Where more than one parking facility is provided on a building site, the number of required automobile parking spaces required to have EV power transfer infrastructure shall be calculated separately for each parking facility.
2. Where one shared parking facility serves multiple building occupancies, the required number of spaces shall be determined proportionally based on the floor area of each building occupancy.
3. Installed EVSE spaces that exceed the minimum requirements of this section may be used to meet minimum requirements for EV ready spaces and EV capable spaces.
4. Installed EV ready spaces that exceed the minimum requirements of this section may be used to meet minimum requirements for EV capable spaces.
5. Where the number of EV ready spaces allocated for R-2 occupancies is equal to the number of dwelling units or to the number of automobile parking spaces, whichever is less, requirements for EVSE spaces for R-2 occupancies shall not apply.
6. In commercial multi-family (R-2, R-3, and R-4) complexes, four stories or greater, that contain multiple buildings, required EV spaces shall be dispersed throughout parking areas so that each building has access to a similar number of spaces per dwelling unit.
7. Requirements for a Group S-2 parking garage shall be determined by the occupancies served by that parking garage. Where new automobile parking spaces do not serve specific occupancies, the values for Group S-2 parking garage in Table CD104.1 shall be used.
8. Direct Current Fast Charging. The number of EVSE spaces for Groups A, B, E, I, M and S-2 Occupancies may be reduced by up to ten per DCFC EVSE provided that the building includes not less than one parking space equipped with a DCFC EVSE and not less than oneĀ EV ready space. A maximum of fifty spaces may be reduced from the total number of EVSE spaces.
Exception: Parking facilities, serving occupancies other than R-2 with fewer than 10 automobile parking spaces.
REQUIRED EV POWER TRANSFER INFRASTRUCTUREE
BUILDING TYPE | MINIMUM EV INSTALLED SPACES | MINIMUM EV READY SPACES | MINIMUM EV CAPABLE SPACES |
Group A, B, E, M | 10% | 5% | 10% |
Group F, I, R-3, R-4 | 2% | 0% | 5% |
Group R-1 and R-2(a) | 15% | 5% | 40% |
Group S-2 Parking Garages | 10% | 5% | 0% |
a. Where all (100%) parking serving R-2 occupancies are EV ready spaces, requirements for EVSE spaces for R-2 occupancies shall not apply.
CD104.2 EV capable spaces. Each EV capable space used to meet the requirements of Section CD104.1 shall comply with all of the following:
1. A continuous raceway or cable assembly shall be installed between an enclosure or outlet located within 3 feet (914 mm) of the EV capable space and a suitable panelboard or other onsite electrical distribution equipment.
2. Installed raceway or cable assembly shall be sized and rated to supply a minimum circuit capacity in accordance with CD104.5
3. The electrical distribution equipment to which the raceway or cable assembly connects shall have sufficient dedicated space and spare electrical capacity for a 2-pole circuit breaker or set of fuses.
4. The electrical enclosure or outlet and the electrical distribution equipment directory shall be marked: "For future electric vehicle supply equipment (EVSE)."
5. Reserved capacity shall be no less than 4.1 kVA (20A 208/240V) for each EV capable space.
CD104.3 EV ready spaces. Each branch circuit serving EV ready spaces used to meet the requirements of Section CD104.1 shall comply with all of the following:
1. Terminate at an outlet or enclosure, located within 3 feet (914 mm) of each EV ready space it serves.
2. Have a minimum circuit capacity in accordance with CD104.5.
3. The panelboard or other electrical distribution equipment directory shall designate the branch circuit as "For electric vehicle supply equipment (EVSE)" and the outlet or enclosure shall be marked "For electric vehicle supply equipment (EVSE)."
CD104.4 EVSE spaces. An installed EVSE with multiple output connections shall be permitted to serve multiple EVSE spaces. Each EVSE installed to meet the requirements of Section CD104.1, serving either a single EVSE space or multiple EVSE spaces, shall comply with all of the following:
1. Have a minimum circuit capacity in accordance with CD104.5.
2. Have a minimum charging rate in accordance with CD104.4.1.
3. Be located within 3 feet (914 mm) of each EVSE space it serves.
4. Be installed in accordance with Section CD104.6 and CD104.7.
CD104.4.1 EVSE minimum charging rate. Each installed EVSE shall comply with one of the following:
1. Be capable of charging at a minimum rate of 6.2 kVA (or 30A at 208/240V).
2. When serving multiple EVSE spaces and controlled by an energy management system providing load management, be capable of simultaneously charging each EVSE space at a minimum rate of no less than 3.3 kVA.
3. When serving EVSE spaces allowed to have a minimum circuit capacity of 2.7 kVA in accordance with CD104.5.1 and controlled by an energy management system providing load management, be capable of simultaneously charging each ESVE space at a minimum rate of no less than 2.1 kVA.
CD104.5 Circuit capacity. The capacity of electrical infrastructure serving each EV capable space, EV ready space, and EVSE space shall comply with one of the following:
1. A branch circuit shall have a rated capacity not less than 8.3 kVA (or 40A at 208/240V) for each EV ready space or EVSE space it serves.
(y)
2. The requirements of CD104.5.1.
CD104.5.1 Circuit capacity management. The capacity of each branch circuit serving multiple EVSE spaces, EV ready spaces or EV capable spaces designed to be controlled by an energy management system providing load management in accordance with NFPA 70, shall comply with one of the following:
(z)
1. Have a minimum capacity of 4.1 kVA per space.
2. Have a minimum capacity of 2.7 kVA per space when serving EV ready spaces or EVSE spaces for a building site when all (100%) of the automobile parking spaces are designed to be EV ready or EVSE spaces.
CD104.6 EVSE installation. EVSE shall be installed in accordance with NFPA 70 and shall be listed and labeled in accordance with UL 2202 or UL 2594.
CD104.7. EVSE ENERGY STAR. All EVSE shall be ENERGY STAR certified.
CD105. Universal vehicle charging stations. Where electric vehicle charging stations are provided for public use, or where electric vehicle charging stations are shared by multiple multi-family dwelling units, the number of universal vehicle charging stations shall be provided in accordance with Table CD104.1. When multiple stalls are required, access aisles may be shared.
UNIVERSAL EV SPACE REQUIREMENTS
TOTAL # OF EV CHARGING STATIONS | MINIMUM # OF UNIVERSAL VEHICLE CHARGING STATIONS |
1 or more | 25% |
CD106. Identification. Construction documents shall designate all EV Capable spaces, EV Ready spaces and EV Installed spaces and indicate the locations of conduit and termination points serving them. The circuit breakers or circuit breaker spaces reserved for the EV Capable spaces, EV Ready spaces, and EV Installed spaces shall be clearly identified in the panel board directory. The conduit for EV Capable spaces shall be clearly identified at both the panel board and the termination point at the parking space.
(y)
Section R101.1 Title is retained in its entirety with the following amendments:
R101.1 Title. This code shall be known as the International Energy Conservation Code of the City of Northglenn and shall be cited as such. It is referred to herein as "this code".
(z)
Section R103.2 Information on construction documents, is amended by modifying item 6 and adding items 10, 11, and 12 as follows:
6. Mechanical and service water heating systems and equipment types, sizes, fuel source, and efficiencies.
10. Details of additional electric infrastructure, including branch circuits, conduit, or pre-wiring, and panel capacity in compliance with the provisions of this code.
11. Location of pathways for routing of raceways or cable from the solar ready zone to the electrical service panel.
12. Location of designated EVSE spaces, EVSE Universal spaces, EV-Ready spaces, and EV-Capable spaces in parking facilities, as applicable.
(aa)
Section R104.2 "Schedule of Permit Fees."
See IBC Section 109.2 "Schedule of Permit Fees."
(bb)
Section R104.3 "Work Commencing before Permit Issuance" is amended by deleting the section in its entirety and hereby amended to read as follows:
Section R104.3 Double Fee. Where a licensed contractor or an individual who starts or proceeds with work for which a permit is required by this Code prior to obtaining said permit, the fees specified in Section 109.2" Schedule of Permit Fees" of the City of Northglenn Building Code shall be doubled. Such fee shall be paid whether or not such permit is obtained, but the payment of such fee shall not relieve any persons from fully complying with the requirements of this Code.
(cc)
Section R104.5 "Refunds" is amended by deleting the section in its entirety and replacing it with the following:
See IBC Section 109.6. "Refunds"
(dd)
Section R109 "Stop Work Order" is hereby amended to read as follows:
Issuance. The stop work order shall be in writing and shall be given to the owner of the property involved, or to the owner's agent, or to the person doing the work. If no such person can be contacted at the property, it shall be posted in a conspicuous location on the property involved. Upon issuance of the stop work order, the cited work shall immediately cease. The stop work order shall cite the specific code section violated, state the reason for the order, and state the conditions under which the cited work will be permitted to resume.
(ee)
Section R110 "Means of Appeals" is amended by deleting the section in its entirety and replacing it with the following:
IECC Section 110 "Board of Adjustment"
110.1 General: Appeals of orders, decisions or determinations made by the Building Official relative to the application and interpretation of this Code may be made to the Northglenn Board of Adjustment. Appeals shall be in accordance with Chapter 11 of the Northglenn Municipal Code.
(ff)
Section R202 GENERAL DEFINITIONS is amended to add the following definitions in alphabetical order:
ALL-ELECTRIC BUILDING. A building and building site that contains no combustion equipment, or plumbing for combustion equipment, and that uses heat pump technology as the primary supply for heating, cooling, and service water heating loads.
COMBUSTION EQUIPMENT. Any equipment or appliances used for space heating, cooling, water heating (including pools and spas), cooking, clothes drying or lighting that uses natural gas, propane, other fuel gas, or fuel oil.
MIXED-FUEL BUILDING. A building and building site that contains combustion equipment, or plumbing for combustion equipment, for space heating, cooling, water heating (including pools and spas), cooking, or clothes drying.
(gg)
Section R401.2.5 Additional energy efficiency is amended as follows:
R401.2.5 Additional energy efficiency. This section establishes additional requirements applicable to all compliance approaches to achieve additional energy efficiency.
1. For buildings complying with Section R401.2.1, the building shall meet one of the following:
1.1 For all-electric buildings, one of the additional efficiency package options shall be installed according to Section R408.2.
1.2 For mixed-fuel buildings, three of the additional efficiency packages shall be installed, at least one of which addresses the envelope.
2. For buildings complying with Section R401.2.2, the building shall meet one of the following:
2.1 For all-electric buildings, one of the additional efficiency package options in Section R408.2 shall be installed without including such measures in the proposed design under Section R405.
2.2 For mixed-fuel buildings, three of the additional efficiency packages shall be installed, at least one of which addresses the envelope, without including such measures in the proposed design under Section R405.
2.3 For all-electric buildings, the proposed design of the building under Section R405.3 shall have an annual energy cost that is less than or equal to 95 percent of the annual energy cost of the standard reference design.
2.4 For mixed-fuel buildings, the proposed design of the building under Section R405.3 shall have an annual energy cost that is less than or equal to 80 percent of the annual energy cost of the standard reference design.
3. For buildings complying with the Energy Rating Index alternative Section R401.2.3, the Energy Rating Index value shall be at least 5 percent less than the Energy Rating Index target specified in Table R406.5.
The options selected for compliance shall be identified in the certificate required by Section R401.3.
(hh)
Section R401.3 Certificate, item 4, is amended and new items 8, 9, and 10 are added as follows:
R401.3 Certificate. A permanent certificate shall be completed by the builder or other approved party and posted on a wall in the space where the furnace is located, a utility room or an approved location inside the building. Where located on an electrical panel, the certificate shall not cover or obstruct the visibility of the circuit directory label, service disconnect label or other required labels. The certification shall indicate the following:
4. The types, sizes, fuel sources, and efficiencies of heating, cooling and service water heating equipment. Where a gas-fired unvented room heater, electric furnace or baseboard electric heater is installed in the residence, the certificate shall indicate "gas-fired unvented room heater," "electric furnace" or "baseboard electric heater," as appropriate. An efficiency shall not be indicated for gas-fired unvented room heaters, electric furnaces, and electric baseboard heaters.
8. The fuel sources for cooking and clothes drying equipment.
9. Where combustion equipment is installed, the certificate shall indicate information on the installation of additional electric infrastructure including which equipment and/or appliances include additional electric infrastructure, capacity reserved on the electrical service panel for replacement of each piece of combustion equipment and/or appliance.
10. Where a solar-ready zone is provided, the certificate shall indicate the location, dimensions, and capacity reserved on the electrical service panel.
(ii)
Section R403.5 Service hot water systems is amended as follows:
R403.5 Service hot water systems. Energy conservation measures for service hot water systems shall be in accordance with Sections R403.5.1 through R403.5.4.
(jj)
Section R403.5.4 Water heating equipment location is added as follows:
R403.5.4 Water heating equipment location. Water heaters with combustion equipment shall be located in a space with the following characteristics:
1. Minimum dimensions of 3 feet by 3 feet by 7 feet high.
2. Minimum volume of 760 cubic feet, or the equivalent of one 16-inch by 24-inch grill to a heated space and one 8-inch duct of no more than 10 feet in length for cool exhaust air.
3. Contains a condensate drain that is no more than 2 inches higher than the base of the installed water heater and allows natural draining without pump assistance, installed within 3 feet of the water heater.
Exceptions:
1. Water heats with an input capacity of greater than 300,000 Btu/h that serves multiple dwelling units or sleeping units.
(kk)
Section R404.1.2 Fuel gas lighting equipment is amended to read as follows:
Section R404.1.2 Fuel gas lighting. Fuel gas lighting systems are prohibited.
(ll)
A new Section R404.4 Additional electric infrastructure is added as follows:
R404.4 Additional electric infrastructure. All combustion equipment shall be installed in accordance with Section R403.5.4 and shall be provided with a junction box that is connected to an electrical panel by continuous raceways that meet the following requirements:
1. The junction box, raceway, and bus bar in the electric panel and conductors serving the electric panel shall be sized to accommodate electric equipment sized to serve the same load as the combustion equipment.
2. The panel shall have reserved physical space for a dual-pole circuit breaker.
3. The junction box and electrical panel directory entry for the dedicated circuit breaker space shall have labels stating "For future electric equipment."
4. The junction box shall allow for the electric equipment to be installed within the same place of the combustion equipment that it replaces.
Exceptions:
Fossil fuel space heating equipment where a 208/240-volt electrical circuit with a minimum capacity of 40 amps exists for space cooling equipment.
Water heating equipment with an input capacity greater than 300,000 Btu/h that serves multiple dwelling units or sleeping units.
(mm)
Table R405.2 Requirements for Total Building Performance adds a new row under Mechanical and a new row under Electrical Power and Lighting Systems as follows:
REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE
SECTION | TITLE |
Mechanical | Mechanical |
R403.5.4 | Water heating equipment |
Electrical Power and Lighting Systems | Electrical Power and Lighting Systems |
R404.4 | Additional electric infrastructure |
(nn)
Table R406.2 Requirements for Energy Rating Index adds a new row under Mechanical and a new row under Electrical Power and Lighting Systems as follows:
REQUIREMENTS FOR ENERGY RATING INDEX
SECTION | TITLE |
Mechanical | Mechanical |
R403.5.4 | Water heating equipment |
Electrical Power and Lighting Systems | Electrical Power and Lighting Systems |
R404.4 | Additional electric infrastructure |
(oo)
Section R406.5 ERI-based compliance is amended as follows:
R406.5 ERI-based compliance. Compliance based on an ERI analysis requires that the rated proposed design and confirmed built dwelling be shown to have an ERI less than or equal to the appropriate value for the proposed all-electric or mixed-fuel building as indicated in Table R406.4 when compared to the ERI reference design.
MAXIMUM ENERGY RATING INDEX
CLIMATE ZONE | ALL-ELECTRIC BUILDING | MIXED FUEL BUILDING |
5 | 55 | 52 |
(pp)
Appendix RB Title is amended to read: "Appendix RB Solar Ready Provisions."
(qq)
RB103.1, first sentence, is amended as follows, with the rest of the paragraph and section remaining:
RB103.1 General. New residential buildings with not less than 600 square feet (55.74 m 2) of roof area oriented between 110 degrees and 270 degrees of true north shall comply with Sections RB103.2 through RB103.8.
(rr)
Add Appendix RD to read as follows:
EV READINESS - RESIDENTIAL
RD101. Purpose and intent. The purpose and intent of this Appendix RD is to accommodate the growing need for EV charging infrastructure, in particular meeting preferences for charging at home. Including these measures during initial construction substantially reduces the costs and difficulty of installing EV infrastructure at a later date.
RD102. Applicability. This Appendix RD shall apply to all new residential construction to which the International Residential Code applies.
RD103. Definitions.
AUTOMOBILE PARKING SPACE. A space within a building or private or public parking lot, exclusive of driveways, ramps, columns, office, and work areas, for the parking of an automobile.
DIRECT CURRENT FAST CHARGING (DCFC) EVSE. EV power transfer infrastructure capable of fast charging on a 100A or higher 480VAC three-phase branch circuit. AC power is converted into a controlled DC voltage and current within the EVSE that will then directly charge the electric vehicle.
EV LOAD MANAGEMENT SYSTEM. A system designed to allocate charging capacity among multiple EVSE and that complies with the current National Electric Code.
ELECTRIC VEHICLE (EV). An automotive-type vehicle for on-road use, such as passenger automobiles, buses, trucks, vans, neighborhood electric vehicles, and electric motorcycles, primarily powered by an electric motor that draws current from an electric source.
ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE). Equipment for plug-in power transfer including the ungrounded, grounded, and equipment grounding conductors, and the electric vehicle connectors, attachment plugs, personal protection system and all other fittings, devices, power outlets or apparatus installed specifically for the purpose of transferring energy between the premises wiring and the electric vehicle.
ELECTRIC VEHICLE SUPPLY EQUIPMENT INSTALLED SPACE (EVSE space). An automobile parking space that is provided with a dedicated EVSE connection.
ELECTRIC VEHICLE CAPABLE SPACE (EV CAPABLE SPACE). A designated automobile parking space that is provided with electrical infrastructure, such as, but not limited to, raceways, cables, electrical capacity, and panelboard or other electrical distribution equipment space, necessary for the future installation of an EVSE.
ELECTRIC VEHICLE READY SPACE (EV READY SPACE). An automobile parking space that is provided with a branch circuit and either an outlet, junction box or receptacle, that will support an installed EVSE.
UNIVERSAL VEHICLE CHARGING STATION. A charging station installed in a parking space for a minimum vehicle width of 120 inches (3048 mm) with 36 inch access aisles (915 mm) on each side.
RD104. One- and two- family dwellings and townhouses. One EV ready space shall be provided for each dwelling unit. The branch circuit shall be identified as EV ready in the service panel or subpanel directory, and the termination location shall be marked as EV ready.
Exception: Dwelling units where no parking spaces are either required or provided.
RD105. Residential multi-family dwellings, 3-stories or less. New dwelling units for residential multi-family buildings, other than duplexes and townhomes, shall be provided with electric vehicle power transfer infrastructure in compliance with Sections RD105.1 through RD105.6 and Sections RD106 through RD107.
RD105.1. Quantity. The number of required EVSE spaces, EV ready spaces, and EV capable spaces shall be determined in accordance with this Section and Table RD105.1 based on the total number of automobile parking spaces and shall be rounded up to the nearest whole number. For R-2 buildings, the Table requirements shall be based on the total number of dwelling units or the total number of automobile parking spaces, whichever is less.
Where more than one parking facility is provided on a building site, the number of required automobile parking spaces required to have EV power transfer infrastructure shall be calculated separately for each parking facility.
Installed EVSE spaces that exceed the minimum requirements of this section may be used to meet minimum requirements for EV ready spaces and EV capable spaces.
Installed EV ready spaces that exceed the minimum requirements of this section may be used to meet minimum requirements for EV capable spaces.
Where the number of EV ready spaces allocated for R-2 occupancies is equal to the number of dwelling units or to the number of automobile parking spaces allocated to R-2 occupancies, whichever is less, requirements for EVSE spaces for R-2 occupancies shall not apply.
In residential multi-family complexes that contain multiple buildings, required EV spaces shall be dispersed throughout parking areas so that each building has access to a similar number of spaces per dwelling unit.
REQUIRED EV POWER TRANSFER INFRASTRUCTURE FOR MULTI-FAMILY
BUILDING TYPE | MINIMUM EV INSTALLED SPACES | MINIMUM EV READY SPACES | MINIMUM EV CAPABLE SPACES |
Group R-1 and R-2(a) | 15% | 5% | 40% |
Group R-3 and R-4 | 2% | 0% | 5% |
(a)
Where all (100%) parking serving R-2 occupancies are EV ready spaces, requirements for EVSE spaces for R-2 occupancies shall not apply.
RD105.2. EV capable spaces. Each EV capable space used to meet the requirements of Section RD105.1 shall comply with all of the following:
1. A continuous raceway or cable assembly shall be installed between an enclosure or outlet located within 3 feet (914 mm) of the EV capable space and a suitable panelboard or other onsite electrical distribution equipment.
2. Installed raceway or cable assembly shall be sized and rated to supply a minimum circuit capacity in accordance with C104.5
3. The electrical distribution equipment to which the raceway or cable assembly connects shall have sufficient dedicated space and spare electrical capacity for a 2-pole circuit breaker or set of fuses.
4. The electrical enclosure or outlet and the electrical distribution equipment directory shall be marked: "For future electric vehicle supply equipment (EVSE)."
5. Reserved capacity shall be no less than 4.1 kVA (20A 208/240V) for each EV capable space.
RD105.3. EV ready spaces. Each branch circuit serving EV ready spaces used to meet the requirements of Section RD105.1 shall comply with all of the following:
1. Terminate at an outlet or enclosure, located within 3 feet (914 mm) of each EV ready space it serves.
2. Have a minimum circuit capacity in accordance with RD105.5.
3. The panelboard or other electrical distribution equipment directory shall designate the branch circuit as "For electric vehicle supply equipment (EVSE)" and the outlet or enclosure shall be marked "For electric vehicle supply equipment (EVSE)."
RD105.4. EVSE spaces. An installed EVSE with multiple output connections shall be permitted to serve multiple EVSE spaces. Each EVSE installed to meet the requirements of Section RD105.1, serving either a single EVSE space or multiple EVSE spaces, shall comply with all of the following:
1. Have a minimum circuit capacity in accordance with RD105.5.
2. Have a minimum charging rate in accordance with RD105.4.1.
3. Be located within 3 feet (914 mm) of each EVSE space it serves.
4. Be installed in accordance with Section RD105.6 and RD105.7
RD105.4.1. EVSE minimum charging rate. Each installed EVSE shall comply with one of the following:
1. Be capable of charging at a minimum rate of 6.2 kVA (or 30A at 208/240V).
2. When serving multiple EVSE spaces and controlled by an energy management system providing load management, be capable of simultaneously charging each EVSE space at a minimum rate of no less than 3.3 kVA.
3. When serving EVSE spaces allowed to have a minimum circuit capacity of 2.7 kVA in accordance with RD105.5.1 and controlled by an energy management system providing load management, be capable of simultaneously charging each ESVE space at a minimum rate of no less than 2.1 kVA.
RD105.5. Circuit capacity. The capacity of electrical infrastructure serving each EV capable space, EV ready space, and EVSE space shall comply with one of the following:
1. A branch circuit shall have a rated capacity not less than 8.3 kVA (or 40A at 208/240V) for each EV ready space or EVSE space it serves.
RD105.5.1. Circuit capacity management. The capacity of each branch circuit serving multiple EVSE spaces, EV ready spaces or EV capable spaces designed to be controlled by an energy management system providing load management in accordance with NFPA 70, shall comply with one of the following:
(a)
Have a minimum capacity of 4.1 kVA per space.
(b)
Have a minimum capacity of 2.7 kVA per space when serving EV ready spaces or EVSE spaces for a building site when all (100%) of the automobile parking spaces are designed to be EV ready or EVSE spaces.
RD105.6. EVSE installation. EVSE shall be installed in accordance with NFPA 70 and shall be listed and labeled in accordance with UL 2202 or UL 2594.
RD105.7. EVSE ENERGY STAR. All EVSE shall be ENERGY STAR certified.
RD106. Universal vehicle charging stations. Where electric vehicle charging stations are provided for public use, or where electric vehicle charging stations are shared by multiple multi-family dwelling units, the number of universal vehicle charging stations shall be provided in accordance with Table RD106.1. When multiple stalls are required, access aisles may be shared.
UNIVERSAL EV SPACE REQUIREMENTS
TOTAL # OF EV CHARGING STATIONS | MINIMUM # OF UNIVERSAL VEHICLE CHARGING STATIONS |
1 or more | 25% |
RD107. Identification. Construction documents shall designate all EV capable spaces, EV ready spaces and EVSE spaces and indicate the locations of conduit and termination points serving them. The circuit breakers or circuit breaker spaces reserved for the EV capable spaces, EV ready spaces, and EVSE Installed spaces shall be clearly identified in the panel board directory. The conduit for EV capable spaces shall be clearly identified at both the panel board and the termination point at the parking space.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-7. Violations--Penalty.
(a)
It shall be unlawful for any person to violate any of the provisions of the International Energy Conservation Code, 2021 Edition, or the provisions of this ordinance.
(b)
Any violation of the provisions of this ordinance and any violation of any of the provisions of the International Energy Conservation Code, 2021 Edition, shall, upon conviction, be punishable as provided in Section 1-1-10(a)(2) of this Code.
[Source: Ord. 1799, 2020; 1847, 2023]
Section 10-11-8. Conflicts. If the provisions of this Code, as adopted in this Article, conflict with any other provisions of the Municipal Code then the more restrictive of the two shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable.
[Source: Ord. 1799, 2020; 1847, 2023]