CALGreen EV charging requirements for new California homes加州新建住宅的 CALGreen 电动车充电要求

EV Capable means the space is wired for a future charger — conduit, capacity and usually a panel reservation — without the circuit terminated in a receptacle. EV Ready means a complete branch circuit is installed to the space, ready for a charger to be connected. An installed charger (EVCS) means the electric vehicle supply equipment itself is in place. The code specifies different tiers — and different percentages — for residential and nonresidential parking.EV Capable 指车位已为未来充电桩预留——管线、容量以及通常的配电箱预留——但回路未在插座处端接。EV Ready 指已敷设完整的到车位分支回路，可随时接入充电桩。已安装充电桩（EVCS）指电动车供电设备本身已安装到位。规范对住宅与非住宅停车分别规定了不同层级与不同比例。

A common mistake is budgeting for EV Capable when the jurisdiction requires EV Ready for the same spaces. The difference is the terminated circuit, and it is far cheaper to install it during construction than to retrofit it later.常见错误是按 EV Capable 做预算，而辖区对相同车位要求 EV Ready。差别在于已端接的回路，在施工期安装远比日后改造便宜。

For single-family homes CALGreen focuses on the garage or parking spaces — typically at least one space prepared for charging, moving toward EV Ready rather than merely Capable in recent editions. For multifamily, the code sets percentages of spaces at each tier, and some editions require a share of installed chargers in addition to ready spaces. For nonresidential, the split between EVCS and EV Capable varies by use — retail, office and other occupancies can carry different thresholds.对独栋住宅，CALGreen 聚焦车库或停车位——通常至少一个车位做好充电准备，近期版本趋向 EV Ready 而非仅 Capable。对多户住宅，规范按层级规定车位百分比，部分版本还要求在就绪车位之外安装一定比例的充电桩。对非住宅，EVCS 与 EV Capable 的分配因用途而异——零售、办公与其他类型的门槛可能不同。

The percentages are edition-specific and are amended by many cities, so the current state table is only the floor. Read the table, then read the city's local amendments — the local number usually governs.百分比因版本而异，并被许多城市修订，因此州表格只是下限。先看表格，再看该市的地方修订——通常以地方数字为准。

Bay Area cities frequently exceed CALGreen on EV charging even where they dropped their all-electric building mandates after the Berkeley decision — EV infrastructure survived because it is not a gas restriction. Some cities require both Level 2 EV Ready and a second Level 1 space, install chargers at a set percentage, add DC fast chargers for larger nonresidential projects, or reserve capacity for medium- and heavy-duty charging. The result is that the same parking count can carry very different obligations a few miles apart.湾区城市常在电动车充电上超越 CALGreen，即便它们在伯克利案裁决后放弃了全电气化建筑强制要求——电动车基础设施得以保留，因为它不属于燃气限制。有些城市同时要求 Level 2 EV Ready 与第二个 Level 1 车位，按固定比例安装充电桩，为较大非住宅项目增设直流快充，或为中重型车辆充电预留容量。结果是，相隔几英里的相同车位数，承担的义务可能差异极大。

Before sizing a panel or a conduit run, confirm the local EV numbers for the specific address. The project's electrical design and the report's scope both depend on it.在确定配电箱或管线规模之前，请确认具体地址适用的地方电动车数字。项目的电气设计与报告范围都取决于此。