Section 4.106 — SITE DEVELOPMENT

4.106.4 Revise this section as follows:

4.106.4 Electric vehicle (EV) charging for new construction. New construction shall comply with Section 4.106.4.1 or 4.106.4.2 to facilitate future installation and use of EV chargers. Electric vehicle supply equipment (EVSE) shall be installed in accordance with the California Electrical Code, Article 625.

Exceptions:

1. On a case-by-case basis, where the local enforcing agency has determined EV charging and infrastructure are not feasible based upon one or more of the following conditions:

1.1 Where there is no local utility power supply or the local utility is unable to supply adequate power.

1.2 Where there is evidence suitable to the local enforcing agency substantiating that additional local utility infrastructure design requirements,

← directly related to the implementation of Section 4.106.4, [ ] increase the utility side cost to the homeowner or the developer by more than $400 per parking space. In such cases, buildings subject to Section 4.106.4 shall maximize the number of EV Charging Spaces, up to a utility side cost of a maximum of $400 per space. Cost shall be determined by dividing the increase in local utility infrastructure cost attributable to compliance with this section by the sum of parking spaces and EV Charging Spaces.

2. Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU) without additional parking facilities.

4.106.4.1 New one-and-two-family dwellings and townhouses with attached or adjacent private garages. [ ← ] For each parking space, install a 40-Amp 208 or 240-volt branch circuit, including raceway, electrical panel capacity, overprotection devices, wire, and termination point such as a receptacle. The termination point shall be in close proximity to the proposed EV charger location. Raceways are required to be continuous at enclosed, inaccessible, or concealed areas and spaces. Raceway for each circuit shall not be less than trade size 1 (nominal 1-inch inside diameter).

4.106.4.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging as [ ← ] “EV READY” for full circuits. The raceway termination location shall be permanently and visibly marked as [ ← ] “EV

READY” for full circuits.

4.106.4.2.2.1.2 Electric vehicle charging stations (EVCS) dimensions. The charging spaces shall be designed to comply with the following:

1. The minimum length of each EV space shall be 18 feet (5486 mm).

2. The minimum width of each EV space shall be 9 feet (2743 mm).

3. One in every 25 charging spaces, but not less than one, shall also have an 8-foot (2438 mm) wide minimum aisle. A 5-foot (1524 mm) wide minimum aisle shall be permitted provided the minimum width of the EV space is 12 feet (3658 mm).

a. Surface slope for this EV space and the aisle shall not exceed 1 unit vertical in 48 units horizontal (2.083 percent slope) in any direction.

b. Notwithstanding any other applicable requirements, when an EV charger is installed serving an accessible parking space, the space may be considered a parking space if the duration of stay is not subject to any limitations different from those generally applied to other publicly accessible parking spaces in the same parking area. If the duration of stay in an accessible space equipped with an EV charger is subject to limitations different from those generally applied to other publicly accessible parking spaces in the same parking area, the space is not a parking space.

4.106.4.2.2.1.3 Accessible EV spaces. In addition to the requirements in Sections 4.106.4.2.2.1.1 and 4.106.4.2.2.1.2, all EVSE, when installed, shall comply with the accessibility provisions for EV chargers in the California Building Code, Chapter 11B. EV ready spaces and EVCS in multifamily developments shall comply with California Building Code, Chapter 11A, Section 1109A. Accessible spaces must meet the dimensions specified in Section 4.106 .4.2.2.1.2, Planning Code Section 154, or other applicable accessibility requirements, whichever would result in the largest space size.

4.106.4.2.3 EV space requirements.

1. Single EV space required. [ ← ] Where a single EV space is required, install a full circuit with a minimum of 40-Amp 208 or 240 Volt capacity, including listed raceway, sufficient electrical panel capacity, overcurrent protection devices, wire, and termination point such as a receptacle. The termination point shall be in close proximity to the proposed EV charger location. The raceway shall not be less than trade size 1 (nominal 1-inch inside diameter).

2. Multiple EV spaces required. Construction documents shall indicate the raceway termination point and the location of installed or future EV spaces, receptacles, or EV chargers. Construction documents shall also provide information on amperage of installed or future receptacles or EVSE, raceway method(s), wiring schematics and electrical load calculations. Plan design shall be based upon a 40-ampere minimum branch circuit. Required raceways and related components that are planned to be installed underground, enclosed, inaccessible or in concealed areas and spaces shall be installed at the time of original construction.

Exception: A raceway is not required if a minimum 40-ampere 208/240-volt dedicated EV branch circuit is installed in close proximity to the location or the proposed location of the EV space at the time of original construction in accordance with the California Electrical Code.

a. Multiple Levels of Parking:

i. Branch circuit panelboard(s) shall be installed at each parking level with service capacity dedicated to EV Capable Spaces and EV spaces proportional to the number of vehicle spaces on each level, including panelboard(s) space and capacity. The circuits and overcurrent protective devices shall remain reserved exclusively for EV charging.

Exception: Circuits and overcurrent protective devices in panelboards not located on the same level may contribute to the requirements of 4.106.4.2.4(b), provided the circuits are reserved exclusively for EV charging. For example, the circuit serving an EV Space dedicated to a condominium owner may connect to the electrical panelboard of the corresponding condominium.

ii. Install raceway or sleeves where penetrations to walls, floors, or other partitions will be necessary to install panels, raceways, or related electrical components necessary per site conditions for future installation of branch circuits. All such penetrations must comply with applicable codes, including but not limited to the San Francisco Electrical Code and the San Francisco Fire Code.

NOTES:

Electric vehicle charging infrastructure and housing are critical priorities for the City and County of San Francisco. Automated Load Management Systems, energy efficiency, and selection of low-amperage technologies can help mitigate increases to peak electric load. Where the installation of a utility electrical transformer may be determined to be necessary in the context of compliance with Section 4.106.4.2.4 of this chapter, SF Building Code Section 106A.1.17.1, or other provisions of the San Francisco Electrical Code, and where such transformer cannot be accommodated on the project site due to the combination of project site dimensions, San Francisco Building Code, San Francisco Electrical Code, and applicable utility regulations, the Director of Public Works is encouraged to issue a Sidewalk Vault Encroachment Permit, provided that the fronting property owner complies with all requirements governing street occupancy, including but not limited to the San Francisco Public Works Code and Department of Public Works Order 165,553.

4.106.4.2.4 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging purposes as “EVSE READY” for full circuits and otherwise “EVSE CAPABLE” in accordance with the California Electrical Code.