This amendment was prepared in response to IEEE Std 1547a(TM), Amendment 1 to IEEE Std 1547(TM)-2003 providing revisions to Clause 4.1.1 Voltage regulation, Clause 4.2.4 Frequency, and Clause 4.2.3 Voltage.

This standard specifies the type, production, and commissioning tests that shall be performed to demonstrate that the interconnection functions and equipment of a distributed resource (DR) conform to IEEE Standard P1547.

Interconnection equipment that connects distributed resources (DR) to an electric power system (EPS) must meet the requirements specified in IEEE Standard 1547. Standardized test procedures are necessary to establish and verify compliance with those requirements. These test procedures must provide both repeatable results, independent of test location, and flexibility to accommodate a variety of DR technologies.