When an EV and its EVSE is used as a power supply for an optional standby system, requirements are found in which article?

When an EV and its EVSE is used as a power supply for an optional standby system, requirements are found in which article?

• A. Article 704
• B. Article 705
• C. Article 700
• D. Article 702

Answer: (D)

Using an EV and its EVSE as a source to power an optional standby system falls under the provisions for Optional Standby Systems. This part of the code is dedicated to how stored-energy sources—like a vehicle’s battery accessed through its charging equipment—can supply building loads during a power outage. It covers how the source connects to the building distribution, what transfer equipment (manual or automatic) is required, and the protection and disconnects needed to prevent backfeeding or energizing circuits when utility power is available again. This is distinct from emergency systems, which focus on life-safety loads and have different requirements, and from interconnection rules for other grid-tied generation sources. So, the EV plus EVSE scenario is addressed by the Optional Standby Systems provisions.

Using an EV and its EVSE as a source to power an optional standby system falls under the provisions for Optional Standby Systems. This part of the code is dedicated to how stored-energy sources—like a vehicle’s battery accessed through its charging equipment—can supply building loads during a power outage. It covers how the source connects to the building distribution, what transfer equipment (manual or automatic) is required, and the protection and disconnects needed to prevent backfeeding or energizing circuits when utility power is available again. This is distinct from emergency systems, which focus on life-safety loads and have different requirements, and from interconnection rules for other grid-tied generation sources. So, the EV plus EVSE scenario is addressed by the Optional Standby Systems provisions.