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Choose Your State of Service

In order to serve you better, please select your Dominion Energy location services.

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Our Guidelines

Buckingham Solar Field

Fast Track Process

Eligibility depends on the type and size of the generator, voltage of the line and location of the Point of Interconnection. Generators greater than 2 MW or not connecting to DESC's Distribution System are ineligible.

Generator Capacity Application Fee
> 20 kW to 100 kW $250
> 100 kW to 2 MW $500
≤ 20 kW that exceeded the reserve circuit phase capacity requirement $100

Study Process

Effective June 13, 2022, DESC announces their intention to transition to a Definitive Interconnection Study Process (DISP) as approved by the SC Public Service Commission. You can reference this approved process at the link provided below for “Appendix DESC CS to the SC Generator Interconnection Procedure”.

This process is followed for all interconnection requests that are ineligible for or fail the Fast-Track Process

Generator Capacity DISP Application Deposit
1 MW or less $10,000 + $1 per kWac of generator capacity
> 1 MW and < 20 MW $20,000 + $1 per kWac of generator capacity
20 MW to 50 MW $35,000 + $1 per kWac of generator capacity
> 50 MW $50,000 + $1 per kWac of generator capacity

Steps for Interconnecting

  • Pre-Application Request (Optional)

    Complete this optional Pre-Application Request form to receive valuable information on the Dominion Energy system at your desired Point of Interconnection. This helps you conduct a preliminary evaluation of your site without incurring the expense of preparing a full Interconnection Request.

    • Application Fee is $500
  • Informational Interconnection Study Request (Optional)

    Complete this optional Informational Interconnection Study Request form to evaluate different options (such as different sizes, sites or voltages) before entering the Definitive Interconnection Study Process. This helps you conduct a preliminary evaluation of your site without incurring the expense of preparing a full Interconnection Request.

    • Application Fee is $10,000

You should email either of the above completed forms to SCElectricTransmission@DominionEnergy.com.

The Application Fee / Deposit is based on the size of your project and the interconnection process applied under, as shown above:

  • Pay online ($3.50 Convenience Charge per transaction) via BillMatrix if you have an account with DESC;
  • Pay via ACH/Wire (call 803-217-2175 to receive wire payment information);
  • Or mail your check to:
    • Dominion Energy SC – Transmission Support Team
      Mail Code J-36
      Dominion Energy South Carolina, Inc.
      220 Operation Way
      Cayce, SC 29033

The queue number is used to determine the priority for interconnection service and the cost responsibility for the upgrades necessary to accommodate the interconnection. A lower queue number will be studied prior to a higher one.

Receive approval from Dominion Energy to interconnect your system and execute an Interconnection Agreement.

After testing, and upon successful inspection by Dominion Energy, receive final approval from Dominion Energy to energize your system.

You may now begin commercial operation.

Frequently Asked Questions

Pre-Application Requests are optional. However, a Pre-Application Report can provide valuable information on the Dominion Energy system that can be utilized to evaluate interconnection sites without incurring the expense of preparing a full Interconnection Request.

Pre-Application Reports provide only a snap-shot of the requested portion of the Dominion Energy system at the time of the report. A Pre-Application Request does not establish a queue position in the Dominion Energy Interconnection Queue.

If your project fails the Fast Track Process, it can be evaluation under a Supplemental Review Process or the Study Process, whichever is applicable to your specific project.

Fast Track Application Fees are intended to offset Dominion Energy’s cost of evaluating interconnection requests. Application Fees are not refundable.

Study Deposits are intended to offset Dominion Energy’s cost of evaluating and interconnecting generation projects. Dominion Energy will track the costs associated with an individual project. After the project’s completion, Dominion Energy will reconcile the cost to the deposit(s) provided. Dominion Energy will refund any over-collected amounts. If the costs exceed the deposit(s), the Interconnecting Customer will be invoiced for the remaining balance.

Solar Programs

Dominion Energy Solar Panels

If you're considering a small system less than 20kW for your business, please review our other solar programs.

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