By Rose Law Group Reporter
The City of Mesa Council had unanimously approved the inclusion of infrastructure for electric vehicle (EV) charger installations in all new single-family and multi-family projects. As of March 19, 2025, all projects must comply with the new requirements outlined below.
The effective date of the ordinance was December 18, 2024. Projects that were under design and could not be submitted prior to December 18th were allowed a 90-day exemption window through March 18, 2025. To qualify for the exemption a code modification (no fee) must have been submitted with the project. After the 90-day window, all projects must comply with the new requirements.
Single-family:
Provide raceway from electrical panel to garage and junction box for future EV charger installation per IRC N1104.2:
The main electrical service panel shall have a reserved space to allow installation of a full size 2-pole circuit breaker and shall be labeled “future EV charging”. A raceway shall be installed from the electrical service panel to a location within the garage, where it shall terminate in a junction box or outlet and be labeled “future EV charging”.
Multi-family:
Provide EV-installed and EV-Capable parking spaces in accordance with IECC Section C405.10:
EV-Installed Parking Spaces: 5% of the number of units (0.05 x X units = Y )
EV-Capable Parking Spaces: 15% of the number of units (0.15 x X units = Z)
Where EV-installed spaces exceed the required amount, the additional spaces shall be deducted from the EV-capable spaces required.
EV-CAPABLE SPACE: A dedicated parking space with electrical panel capacity and space for a branch circuit dedicated to the EV parking space that is not less than 8.3 KVA (40A, 208/240V) and equipped with raceways, both underground and surface mounted, to enable the future installation of electric vehicle supply equipment (charger). The termination point shall be near the proposed location of the EV parking space. For two adjacent EV-capable spaces, a single branch circuit is permitted. A permanent “EV-capable” label shall be posted at the service panel and at the raceway termination point to identify equipment to support EV-capable spaces.
EV-INSTALLED SPACE: A dedicated parking space with a branch circuit dedicated to the EV parking space that is not less than 8.3 KVA (40A, 208/240V) and equipped with raceways, both underground and surface mounted, and electric vehicle supply equipment (charger) located near the proposed location of the EV parking space. Where a branch circuit serves multiple charging spaces, an automatic load management system (alms) may be used to reduce the total electrical capacity provided that all charging spaces are capable of simultaneously charging at a minimum rate of 4.1 KVA (20A, 208/240V). For two adjacent EV-installed spaces, a single branch circuit is permitted.
