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

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

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Continue consulting with your chosen Installer to establish your system specifications, and to submit all required application forms, supporting documents, and fees. Once Dominion Energy has processed and approved your submission, you're free to have your Installer move forward with system setup and interconnection to the Dominion power grid.

Indicate Your System Size/Program

To ensure a timely interconnection, complete and submit all required information before you move forward with your solar installation.

For Systems ≤ 20 kW

  1. Gather required information:
    • Dominion Energy electric account number
    • Installer's name and contact information
    • Proof of Liability Insurance ($100,000 or more per occurrence)
    • Download the Single-Line Diagram to document PV System information, including inverter and array brands, models, and installation Details. This PDF is also located in PowerClerk.
    • Access to additional technical resource documents
  2. Submit application via PowerClerk

    If you decide to provide your installer access to PowerClerk, be aware that agreements are between you and Dominion Energy, and all documents will require your signature.

    After all required information is entered into PowerClerk, the following forms will be produced for your completion and digital signature:

    • Interconnection Request Form
    • Solar Energy Program Application
    • IRS W-9 Form

      You Must also upload Proof of Property (Liability) Insurance and a Single Line Diagram

  3. Pay your $100 Processing Fee:
    Pay online ($3.50 Convenience Charge per transaction) via Bill Matrix
    Or mail your check to
    Dominion Energy – Renewable Energy Team
    220 Operation Way
    Cayce, SC 29033
    Mail Code: JSOL

If you have any questions, email or call Dominion Energy at 866-660-3705.

For systems < 20 kW up to 1,000 kW

(or a system ≤ 20 kW that has exceeded the reserve circuit phase capacity requirement)

  1. Complete Application Forms:
  2. Include Supporting Documents:
  3. Send Completed Documents to Dominion Energy South Carolina:
    Email signed documents as PDF files, or mail them along with your processing fee to the address below.
  4. Mail Your Processing Fee:
    • $250 for > 20 kW up to 100 kW
    • $500 for > 100 kW up to 1,000 kW
    • $100 for ≤ 20 kW that exceeded the reserve circuit capacity requirement

    Send to:
    Dominion Energy – Transmission Support Team
    220 Operation Way
    Mail Code: J-36
    Cayce, SC 29033

If you have any questions, email us.

Frequently Asked Questions

Customers can offset up to 100% of their electrical usage without exceeding 1,000 kW for non-residential customers. Dominion Energy uses a customer's annual electric usage and a capacity factor of 1,531 to determine the amount of solar a customer can have.


Customer Usage (kWh)

(365 Days * 24 hrs per day * Capacity Factor * DC/AC Conversion)


Annual Customer Usage - 10,717 kWh

10,717 / (365 * 24 * 0.1531 * 1.1) = 7.26

7.26 kW - Maximum System Size

Renewable Energy customers who interconnect on or after January 1, 2015 are eligible to receive an annual bill credit if their solar generation exceeds their usage. The value of any bill credit/payment you receive could be treated as income. Consult with your tax advisor for more information.

You and your Installer will both receive an auto-response email confirming receipt of your completed application forms and fee; we will then contact you both via email within 15 business days to notify you of the outcome of the technical review.

It is important that you wait for approval from Dominion Energy to ensure your system plans adhere to system requirements for the interconnection process.

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