D.C. Mun. Regs. tit. 15, r. 15-4002

Current through Register Vol. 71, No. 52, December 27, 2024

Rule 15-4002 - APPLICABLE STANDARDS

4002.1

Unless one or more of the following standards are waived by the EDC, a Small Generator Facility must comply with the following standards, as applicable:

(a) Institute of Electrical and Electronics Engineers ("IEEE") 1547 Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces;

(b) IEEE 1547.1 - Standard Conformance Test Procedures for Equipment Interconnecting Distributed Energy Resources with Electric Power Systems and Associated Interfaces;

(c) IEEE 1547.2 - Application Guide for IEEE Standard 1547 for Interconnecting Distributed Resources with Electric Power Systems;

(d) Underwriters Laboratories ("UL") 6142 Standard for Small Wind Turbine Systems; and

(e) UL 1741 Standard for Inverters, Converters and Controllers for Use in Independent Power Systems. UL 1741 compliance must be recognized or certified by a Nationally Recognized Testing Laboratory as designated by the U.S. Occupational Safety and Health Administration. Certification of a particular model or a specific piece of equipment is sufficient. It is also sufficient for an inverter built into a Generating Facility to be recognized as being UL 1741 compliant by a Nationally Recognized Testing Laboratory.

4002.2-4002.4

[RESERVED]

4002.5

The Interconnection Equipment shall meet the requirements of the most current approved version of each standard listed in Subsection 4002.1, as amended, and supplemented at the time the Interconnection Request is submitted.

4002.6

Nothing herein shall preclude the need for an on-site Witness Test or operational test by the Interconnection Customer.

4002.7

Advanced Inverters To comply with IEEE 1547-2018:

(a) After January 1, 2022 (upon commercial availability), any Small Generator Facility requiring an inverter that submits an interconnection request shall use an Advanced Inverter with either a default or a site specific EDC required inverter settings profile, as determined by the EDC.

(b) Any Small Generator Facility may replace an existing inverter that was purchased prior January 1, 2022, with an inverter of equal or greater capability than the original inverter, for use at the Small Generator Facility.

(c) The EDC shall establish default EDC required inverter settings profiles for Advanced Inverters pursuant to Subsection 4002.7 (e), and shall publish the default EDC required inverter settings profile on the EDC's website prior to January 1, 2022.

(d) To the extent reasonable, pursuant to any modifications required by Subsection 4002.7 (e), all EDC required inverter settings profiles shall be consistent with applicable Advanced Inverter recommendations from PJM Interconnection, LLC.

(e) A default EDC required inverter settings profile shall be established by an EDC to optimize the safe and reliable operation of the Electric Distribution System, and shall serve the following objectives:

(1) The primary objective is to incur no involuntary real power inverter curtailments incurred during normal operating conditions and minimal real power curtailments during abnormal operating conditions.

(2) The secondary objective is to enhance Electric Distribution System hosting capacity and to optimize the provision of grid support services.

(f) A site-specific EDC required inverter settings profile may be established by an EDC as necessary to optimally meet objectives established in Subsection 4002.7 (e).

(g) All default EDC required inverter settings profiles will be documented in the interconnection agreements.

(h) A list of acceptable Advanced Inverters shall be published on the EDC's website prior to January 1, 2022.

D.C. Mun. Regs. tit. 15, r. 15-4002

As amended by Final Rulemaking published at 56 DCR 1415, 1418 (February 13, 2009); amended by Final Rulemaking published at 66 DCR 1132 (1/25/2019); amended by Final Rulemaking published at 68 DCR 8244 (8/20/2021)