Chapter 16.43 — GREEN BUILDING CODE
§ 5.106
Sunnyvale Municipal Code · 2026-09 edition · updated 2026-09-27 · Sunnyvale
5.106.5.3. Electric vehicle (EV) charging. Construction to provide electric vehicle¶
infrastructure and facilitate electric vehicle charging shall comply with Section 5.106.5.3.1 EV capable spaces, Section 5.106.5.3.2 Electric vehicle charging stations, or Section
5.106.5.3.6 Electric vehicle charging stations (EVCS) – Power allocation method, and¶
shall be provided in accordance with regulations in the California Building Code and the
California Electrical Code.
Exceptions:
1. Where there is no local utility power supply.
2. Spaces accessible only by automated mechanical car parking systems are excepted
from providing EV charging infrastructure.
(b) 2025 California Green Building Code Section 5.106.5.3.1 (EV capable spaces) is hereby amended to read as follows:
EV capable spaces shall be provided in accordance with the following requirements:
1. Raceways complying with the California Electrical Code and no less than 1-inch (25
mm) diameter shall be provided and shall originate at a service panel or a subpanel(s)
serving the area, and shall terminate in close proximity to the proposed location of the
EV capable space and into a suitable listed cabinet, box, enclosure or equivalent. A
common raceway may be used to serve multiple EV capable spaces.
2. A service panel or subpanel(s) shall be provided with panel space and electrical load
capacity for a dedicated 208/240 volt, 40-ampere minimum branch circuit for each
EV capable space, with delivery of 30-ampere minimum to an installed EVSE at each
EVCS.
3. The electrical system and any on-site distribution transformers shall have sufficient
capacity to supply full rated amperage at each EV capable space.
4. The service panel or subpanel circuit directory shall identify the reserved overcurrent
protective device space(s) as "EV CAPABLE". The raceway termination location
shall be permanently and visibly marked as "EV CAPABLE." Note: A parking space
served by electric vehicle supply equipment or designed as a future EV charging
space shall count as at least one standard automobile parking space only for the
purpose of complying with any applicable minimum parking space requirements
established by an enforcement agency. See Vehicle Code Section 22511.2 for further
details.
(c) 2025 California Green Building Code Section 5.106.5.3.2 (Electric vehicle charging stations (EVCS), is hereby deleted.
(d) 2025 California Green Building Code Section 5.106.5.4.1 Existing buildings or parking areas without previously installed EV capable infrastructure shall be amended:
When EV capable infrastructure does not exist at an existing parking facility or building, and the parking facility or building undergoes an addition or alteration listed in Section 5.106.5.4, construction shall include electric vehicle charging in compliance with either Section 5.106.5.3 or Section 5.106.5.3.6 for the total number of actual parking spaces being added or altered.
(e) 2025 California Green Building Code Section 5.106.5.4.2 Existing buildings or parking areas with previously installed EV capable infrastructure shall be amended:
When EV capable infrastructure is available at an existing parking facility or building, and the parking facility or building is undergoing an addition or alteration listed in Section
5.106.5.4, construction shall include electric vehicle charging in compliance with either Section 5.106.5.3 or Section 5.106.5.3.6. Install EVCS at all existing EV capable spaces, utilizing the existing allocated power and infrastructure for the total number of actual parking spaces being added or altered, prior to adding any new EV capable spaces. If the area being added or altered exceeds the existing EV capable capacity, allocated power and infrastructure, provide additional EV charging as needed to comply with this section.
(f) 2025 California Green Building Code Section 5.106.5.6 (Electric vehicle (EV) charging at public schools and community colleges. [DSA-SS]), is hereby amended to read:
5.106.5.6. Office buildings. In nonresidential new construction buildings designated¶
primarily for office use with parking:
35% of parking spaces shall be provided with at least one Level 2 EVCS. Calculations for the required minimum number of Level 2 EVCS shall be rounded up to the nearest whole number.
An additional 35% shall be provided with at least EV Capable. Calculations for the required minimum number of spaces equipped with Level 2 EVCS and EV Capable spaces shall all be rounded up to the nearest whole number. Construction plans and specifications shall demonstrate that all raceways shall be a minimum of 1" and sufficient for installation of EVCS at all required EV Capable spaces; Electrical calculations shall substantiate the design of the electrical system to include the rating of equipment and any on-site distribution transformers, and have sufficient capacity to simultaneously charge EVs at all required EV spaces including EV Capable spaces; and service panel or subpanel(s) shall have sufficient capacity to accommodate the required number of dedicated branch circuit(s) for the future installation of the EVSE.
Note: ALMS may be installed to increase the number of EV chargers or the amperage or voltage beyod the minimum requirements in this code. The option deis not allow for installing less electrical panel capacity than would be required without ALMS.
(g) 2025 California Green Building Code Sections 5.106.5.6.1 (EV capable spaces), Table 5.106.5.6.1, 5.106.5.6.2 (Electric vehicle charging stations (EVCS), 5.106.5.6.2.1 (Reduced number of EV capable spaces), 5.106.5.6.2.2 (Multiple connectors),
5.106.5.6.2.3 (Use of automatic load management systems (ALMS)), 5.106.5.6.3 (EVCS¶
alternative compliance), TABLE 5.106.5.6.3, 5.106.5.6.4 (EVCS for alterations of or additions to parking facilities), 5.106.5.6.4.1 (Alterations of and additions to parking facilities), 5.106.5.6.4.2 (Alterations consisting of the installation of photovoltaic systems, and 5.106.5.6.5 (Requirement to install EVSE) are hereby deleted.
(h) 2025 California Green Building Code Section 5.106.6 (Reserved) is hereby amended to read as follows:
5.106.6. Other nonresidential buildings. In nonresidential new construction buildings¶
that are not designated primarily for office use, such as retail or institutional uses:
35% of the available parking spaces onsite shall be equipped with Level 2 EVCS.
An additional 35% shall be at least EV Capable.
- A Level 3 EVCS (Direct Current Fast Charger) shall be provided for every 100 spaces on site or fraction thereof. Calculations for the required minimum number of spaces equipped with Level 2 and Level 3 EVCS and EV Capable shall be rounded up to the nearest whole number. Exception: Installation of each Direct Current Fast Charger with the capacity to provide at least 80 kW output may substitute for 6 Level 2 EVCS spaces after a minimum of 6 Level 2 EVCS are installed. Construction plans and specifications shall demonstrate that all raceways shall be a minimum of 1" and sufficient for installation of EVCS at all required EV Capable spaces; electrical calculations shall substantiate the design of the electrical system to include the rating of equipment and any on-site distribution transformers, and have sufficient capacity to simultaneously charge EVs at all required EV spaces including EV Capable spaces; and service panel or subpanel(s) shall have sufficient capacity to accommodate the required number of dedicated branch circuit(s) for the future installation of the EVCS. Note: ALMS may be installed to increase the number of EV chargers or the amperage or voltage beyond the minimum requirements in this code. The option does not allow for installing less electrical panel capacity than would be required without ALMS. (Ord. 3248-25, 10/21/2025)
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