NC Interconnection Information

Interconnection Standard

The North Carolina Utilities Commission (NCUC) has ordered revised interconnection standards for North Carolina in Docket E-100, Sub 101, that will affect all new applications for interconnection after June 9, 2008. All forms including the interconnection application, the interconnection standard, and the interconnection agreement have been revised.

This statewide interconnection standard was developed to standardize the interconnection process while making sure that the integrity of the electric grid is protected and public safety is not compromised.

The North Carolina Interconnection Standard (pdf, 267 KB) governs all state jurisdictional interconnections regardless of size or connection to the distribution or transmission system. There is an optional inverter process for generating facilities no larger than 10 kilowatts. Most residential installations and many business installations will be able to take advantage of this streamlined interconnection process.

Complete the appropriate application in the interconnection standard and return with your application fee made payable to Duke Energy Carolinas.

The information in your application will be used to assess your facility’s impact to the electric grid and to design the interconnection point. We will complete an engineering review, if necessary, to determine any additional Duke-owned equipment that will be necessary for interconnection.

If Duke is required to install additional equipment such as poles, transformers, metering, and protective devices as part of your facility’s interconnection to the electric grid, you may pay for these additional facilities through a monthly Interconnection Facilities Charge or prepay the cost of these facilities for thirty (30) years.

Customers must demonstrate liability insurance coverage to protect themselves from claims for bodily injury and/or property damage. Once the Interconnection Facilities are determined and an Interconnection Agreement is signed, Duke will order the necessary equipment for the interconnection and schedule any equipment for installation.

Return applications for interconnection or address questions about the interconnection process to:

Duke Energy Corporation
Customer Prototype Lab
Mail Code: EY500
139 East Fourth Street
PO Box 960
Cincinnati, OH 45202

Phone: (866) 233-2290
Fax:     (513) 287-2718
Email: customerownedgeneration@duke-energy.com

Good luck with the development of your project!

NOTE: If your goal is to complete a new solar photovoltaic, wind, or micro-hydro generation project by December 31, you must submit a complete Interconnection Request in time to reach Duke Energy Carolinas prior to November 18. It is Duke Energy’s goal to process interconnection requests as quickly as possible and help projects become operational by year end; however, holiday schedules, the threat of inclement weather, and other unforeseen system emergencies may prevent Duke Energy from inspecting and approving interconnection requests and installing any necessary interconnection equipment and metering in late December for any request that is not submitted prior to November 18, or for any Interconnection Request that is submitted with incomplete information or missing documents. Please use the website checklist (pdf, 31 KB) to ensure that your interconnection request is complete.

Project construction should be completed and inspected by the local electrical inspector in time to permit Duke’s field inspection to be completed before December 13.