Which standard relates to interconnection of distributed energy resources (DER) with the grid?

Which standard relates to interconnection of distributed energy resources (DER) with the grid?

• A. UL 508A.
• B. IEEE 1547.
• C. IEC 61850.
• D. NEC 250.122.

Answer: (B)

IEEE 1547 is the standard that governs how distributed energy resources connect to and interact with the electric grid. It sets the requirements for interconnection, performance, and interoperability, including acceptable voltage and frequency ranges, protection and control behavior, monitoring, and islanding conditions. It also covers testing and certification to ensure DER can safely and reliably operate with the grid and respond to grid events, faults, and disturbances. The other standards address different aspects: UL 508A covers industrial control panels, IEC 61850 deals with substation communication and automation protocols, and NEC 250.122 relates to overcurrent protection for separately derived systems, not the general interconnection interface.

IEEE 1547 is the standard that governs how distributed energy resources connect to and interact with the electric grid. It sets the requirements for interconnection, performance, and interoperability, including acceptable voltage and frequency ranges, protection and control behavior, monitoring, and islanding conditions. It also covers testing and certification to ensure DER can safely and reliably operate with the grid and respond to grid events, faults, and disturbances. The other standards address different aspects: UL 508A covers industrial control panels, IEC 61850 deals with substation communication and automation protocols, and NEC 250.122 relates to overcurrent protection for separately derived systems, not the general interconnection interface.