D.C. Mun. Regs. tit. 15, r. 15-4003

Current through Register Vol. 72, No. 2, January 10, 2025

Rule 15-4003 - INTERCONNECTION REVIEW LEVELS

4003.1

The EDC shall review Interconnection Requests using one (1) or more of the four (4) levels of review procedures established by this chapter. The EDC shall first use the level of agreement specified by the Interconnection Customer in the Interconnection Request form. If a Small Generator Facility fails a screen at any level, the EDC may elect to complete the evaluation at the current level, if safety and reliability are not adversely impacted, or at the next appropriate level. The EDC may not impose additional requirements not specifically authorized unless the EDC and the Interconnection Customer mutually agree to do so in writing.

4003.2

If an Interconnection Customer requests a Pre-Application Report from the EDC, the request shall include:

(a) Contact information (name, address, phone number and email).

(b) A proposed Point of Common Coupling, including latitude and longitude, site map, street address, utility equipment number (e.g., pole number), meter number, account number or some combination of the above sufficient to clearly identify the location of the Point of Common Coupling.

(c) Generation technology and fuel source (if applicable).

(d) A three hundred dollar ($300) non-refundable processing fee.

4003.3

For each Pre-Application Report requested, which includes the requisite information and fee, the EDC shall furnish a report, within ten (10) business days of receipt of the completed Pre-Application Report request, which:

(a) Advises the Interconnection Customer that the existence of "Available Capacity" in no way implies that an interconnection up to this level may be completed without impacts since there are many variables studied as part of the interconnection review procedures.

(b) Informs the Interconnection Customer that the Electric Distribution System is dynamic and subject to change.

(c) Informs the Interconnection Customer that data provided in the Pre Application Report may become outdated and not useful at the time of submission of the complete Interconnection Request.

(d) Includes the following information, if available:

(1) Total Capacity (MW) of substation/area bus or bank and distribution circuit likely to serve proposed Point of Common Coupling.

(2) Allocated Capacity (MW) of substation/area bus or bank and distribution circuit likely to serve proposed Point of Common Coupling.

(3) Queued Capacity (MW) of substation/area bus or bank and distribution circuit likely to serve proposed Point of Common Coupling.

(4) Available Capacity (MW) of substation/area bus or bank and distribution circuit likely to serve proposed Point of Common Coupling.

(5) Whether the proposed Small Generator Facility is located on an area, spot or radial network.

(6) Substation nominal distribution voltage or transmission nominal voltage if applicable.

(7) Nominal distribution circuit voltage at the proposed Point of Common Coupling.

(8) Approximate distribution circuit distance between the proposed Point of Common Coupling and the substation.

(9) Relevant Line Section(s) peak load estimate, and minimum load data, when available.

(10) Number of protective devices and number of voltage regulating devices between the proposed Point of Common Coupling and the substation/area.

(11) Whether or not three - phase power is available at the proposed Point of Common Coupling and/or distance from three - phase service.

(12) Limiting conductor rating from proposed Point of Common Coupling to the electrical distribution substation.

(13) Based on proposed Point of Common Coupling, existing or known constraints such as, but not limited to, electrical dependencies at that location, short circuit interrupting capacity issues, power quality or stability issues on the circuit, capacity constraints, or secondary networks.

(14) The Pre-Application Report need only include pre - existing data. The EDC is not obligated in its preparation of a Pre-Application Report to conduct a study or other analysis of the proposed project if that data is not available. If the EDC cannot complete all or some of a Pre-Application Report due to lack of available data, the EDC will provide the potential Applicant with a Pre-Application Report that includes the information that is available and identify the information that is unavailable. Notwithstanding any of the provisions of this Section, the EDC shall, in good faith, provide Pre-Application Report data that represents the best available information at the time of reporting.

(e) As an alternative to information required pursuant to § 4003.3 (d), the EDC may elect to perform a power flow - based study providing the Interconnection Customer with the maximum size of Small Generator Facility that can be installed at a specified location without any Distribution System Upgrades and constraints that would preclude the installation of a larger system. EDC shall make available, upon request, a copy of its power flow - based study for each Interconnection Customer to the Commission.

D.C. Mun. Regs. tit. 15, r. 15-4003

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)