Rule 4901:1-22-05 | Application requirements for interconnection.
(A) Application forms
(1) Each applicant for interconnection to an EDU's system shall complete an application. Such application should properly identify the applicant's name, service address, and account number to be considered complete and subject to review by the EDU.
(2) The application should be submitted to the EDU serving the area where the DER is located. It should not be sent to the commission for the purposes of review and approval. Application forms are available on each EDU's website. The application form shall follow the format and content set forth on the commission's website, or in a format otherwise approved by the commission.
(B) DER equipment
(1) Each applicant shall provide to the EDU in writing a description of the applicant's DER that identifies the following:
(a) The applicant's equipment package, which is considered certified for interconnected operation if it is listed by a nationally recognized testing and certification laboratory for continuous interactive operation with a utility grid and type-tested consistent with the applicable codes and standards set forth in rule 4901:1-22-03 of the Administrative Code. An applicant's equipment package shall include the following:
(i) All interface components including switchgear, inverters, or other interface devices.
(ii) Access for the EDU for commissioning purposes.
(iii) A schedule for periodic compliance testing.
(b) The integrated generator or electric source to be used with the equipment package that meets the following criteria:
(i) Compatibility with the equipment package.
(ii) Consistency with the testing and listing specified for the equipment package.
(c) A disconnect switch that meets the following criteria:
(i) The disconnect switch is capable of isolating the DER for the purposes of safety during EDU system maintenance and during emergency conditions.
(ii) The disconnect switch should be located externally to the equipment package and be accessible to and lockable by EDU personnel, within an acceptable distance of the meter as determined by the EDU, at either the primary voltage level, which may include load-break cutouts, switches, and elbows, or at the secondary voltage level, which may include a secondary breaker or switch.
(iii) The disconnect switch is clearly labeled as a DER disconnect switch.
(iv) The disconnect switch will be provided, installed, and paid for by the applicant, whether it is an integrated feature of the equipment package or a compatible external device.
(d) For solar equipment, the photovoltaic power source and interconnecting inverter shall be clearly labeled in accordance with the standards listed in rule 4901:1-22-03 of the Administrative Code to identify the following:
(i) Nominal current.
(ii) Nominal voltage.
(iii) Maximum short-circuit current.
(2) Certified equipment does not include equipment provided by the EDU.
(C) The review processing fees
(1) Each applicant shall pay the interconnection fees in accordance with the EDU's tariff for the review and processing of an application, established at levels consistent with the DER size and technology as well as the location of the interconnection on the electric distribution system.
(2) The EDU's review processing fee levels will apply in accordance with the EDU's tariff to all interconnections, including those for the purposes of net metering, combined heat and power or waste heat from industrial processes, as well as any interconnections used for energy efficiency or the promotion and utilization of renewable or clean secondary fuels.
(3) Exception to the fee schedule may be determined by the EDU if the EDU invokes a fee-free feature on a nondiscriminatory basis.
(D) Material modifications
(1) At any time after an interconnection application is deemed complete, if the applicant wishes to make a modification to the application or proposed DER facility, the applicant must submit the details of the modification and any associated updated specifications or drawings to the EDU in order for the EDU to determine if the modifications are material. The EDU will make a determination within fourteen calendar days of receipt of the modification information.
(2) If the changes are determined by the EDU to be material, the applicant must submit a revised interconnection application which will be reviewed consistent with the process defined in paragraph (C) of rule 4901:1-22-04 of the Administrative Code. No material modifications may be made without approval of the revised interconnection application.
(3) Nothing in this rule prohibits an applicant from taking actions necessary to prevent harm to human health or safety or to prevent harm to the environment. An applicant may perform such actions that will result in a material modification to an existing DER facility only if the applicant submits a summary of the activities to the EDU within twenty-four hours of the action and the permittee submits a revised interconnection application to the EDU within five calendar days of the event that posed a threat to human health or safety or to the environment, or within another time frame as agreed to by the EDU. The revised interconnection application will be reviewed consistent with the process defined in paragraph (C) of rule 4901:1-22-04 of the Administrative Code.
Last updated July 20, 2026 at 10:42 AM
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