Technical FAQs 4

Are solar photovoltaic systems considered electrical equipment?

Answer: Yes. The State Electrical Code adopts by reference the 2023 edition of the National Electrical Code (NEC). Solar photovoltaic systems fall within the definition of “equipment” as it is defined in the NEC. See NEC Articles 100, 690, 691, 705 and other applicable articles for all pertinent definitions.

Are energy storage systems electrical equipment?

Accordingly, energy storage systems, including the final placement, positioning and securement of batteries, capacitors, and kinetic energy devices (e.g., flywheels and compressed air) and all electrical wiring, are electrical equipment under the State Electrical Code.

Can a new solar PV system be installed in a building?

Answer: No. The existing Rapid Shutdown system technology installed at the time of the initial installation of the solar PV system would be acceptable. NEC Section 690.12 addresses the Rapid Shutdown requirements for “new” solar PV systems installed in or on a building, and not to existing solar PV systems.

What is energy storage system (ESS)?

Energy Storage System (ESS). A listed system with one or more components assembled together capable of storing energy and providing electrical energy into the premises wiring system or an electric power production and distribution network. Storage Battery (Battery).

Photovoltaic Storage & BESS Technical Resources


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Is solar energy storage equipment considered construction engineering equipment

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Engineering Support for Photovoltaic Storage & BESS Projects

Our certified engineering team provides comprehensive technical support for all installed photovoltaic storage and BESS systems. From initial system design and engineering to ongoing maintenance, optimization, and performance monitoring, WALMER ENERGY ensures your photovoltaic storage and BESS solutions operate at peak efficiency throughout their lifecycle, with 24/7 monitoring available for critical industrial and commercial applications.

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