If you're considering a small system less than 20kW for your business, please review our other solar programs.
In order to serve you better, please select your Dominion Energy location services.
In order to serve you better, please select your Dominion Energy location services.
We look forward to working with you!
Are you interested in developing a solar project and interconnecting it with Dominion Energy's system? Use the South Carolina Public Service Commission approved processes below. Note that these processes pertain only to interconnection. For more information on how to sell power back to Dominion Energy, please visit Solar For Your Business.
Eligibility depends on the type and size of the generator, voltage of the line and the location of the Point of Interconnection. Generators greater than 2 MW or not connecting to DESC's Distribution System are ineligible.
This process is issued for all systems that are ineligible or fail the Inverter Process or Fast-Track Process.
Generator Capacity | Process | Application Fee |
> 20 kW to 100 kW | Fast Track | $250 |
> 100 kW to 2 MW | Fast Track | $500 |
> 2 MW | Study | $10,000 deposit + $1 per kWac of generator capacity |
Review Procedures & Guidelines
SC Generator Interconnection Procedure
Learn about the Pre-Application in section 1.2 and the Fast Track Process in section 3.
Dominion Energy Customer Guide
Review this summary of the South Carolina Generator Interconnection Procedure (SCGIP).
Complete Application Forms
Pre-Application Request (Optional)
Complete this optional 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.
Interconnection Request Application
Provide Dominion Energy information about the generating facility you would like to interconnect.
Send Completed Applications and Fees
You may email signed documents as PDF files or mail them with the application fee to the appropriate address below:
For Systems > 20 kW
SCElectricTransmission@DominionEnergySC.com
Dominion Energy Transmission Support Team
220 Operation Way (Mail Code J-36)
Cayce, SC 29033
Receive Queue Number from Dominion Energy
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 of Application
Receive approval from Dominion Energy to interconnect your system and execute an Interconnection Agreement.
Inspection and Final Approval
After testing, and upon successful inspection by Dominion Energy, receive final approval from Dominion Energy to energize your system.
Use System
You may now begin commercial operation.
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.
If you're considering a small system less than 20kW for your business, please review our other solar programs.
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