Explore Solar Options

Frequently Asked Questions

Work With an Installer

Find a professional for advice and installation.

You'll work in consultation with an independent solar Installer to assess your site and apply to participate. Once you've been approved, you'll purchase or lease rooftop panels from the Installer for interconnection to the Dominion power grid.

Always use a professional, licensed contractor to install your solar electric system. While Dominion Energy does not endorse any contractors, here are some resources to consider:

• South Carolina Solar Council
• South Carolina Solar Business Alliance
• South Carolina Office of Regulatory Staff
• North American Board of Certified Energy Practitioners (NABCEP)
• South Carolina Energy Office (Consumer Protection)

Buying vs. Leasing

There are several factors to consider when deciding whether to buy or lease your system. Consult with your Installer to determine which choice is right for you.

IMPORTANT NOTE: If you purchase or lease your solar system by 5/31/2021, please note that the current Net Energy Metering tariff has been approved through 5/31/2029, after which date the cost structure for your customer generation will change.

Dominion Energy Equipment Requirements

Work with your chosen Installer to ensure the following equipment is included with your system:

Frequently Asked Questions

Select Your Solar Program

Select the billing structure right for you.

Once you've established that solar is an option for your business, we can offer different programs with varied rate and billing structures to suit your particular needs. See this chart to compare our renewable energy programs.

Frequently Asked Questions

Apply For and Install Your System

Work with your Installer to implement your solar program.

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 between you and Dominion Energy, and all documents will require your signature.

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

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

   Your 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 BillMatrix.

   Or mail your check to:

   • Dominion Energy – Renewable Energy Team
     220 Operation Way
     Cayce, SC 29033
     Mail Code: JSOL

For Systems > 20 kW up to 80,000 kW

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

1. Gather required information:
   • Single Line Diagram (stamped and dated if > 50 kW
   • Site Plans
   • Evidence of Site Control (tax bill, etc.)
   • Equipment Specifications

   For projects on the DESC Transmission System:

   • The generic PSSE v33 and v34 models from the PSSE standard library that represent the specifics of your site. (NOTE: We no longer accept the REECBU1 model

   For Net-Metering or Offset program applications:

   • Proof of Liability Insurance (20-250 kW = $300,000 per occurrence; > 250 kW = $1,000,000 per occurrence)
   • IRS Form W-9 (Download from IRS)
2. Submit Application via PowerClerk:
   • Register for an account at the DESC Generation Interconnection PowerClerk Website for Generating Facilities Greater than 20 kW.
   • Complete the “New Generation Interconnection Request”. This is a guided application process. All required fields/documents must be completed before submitting the application, this includes the authorized representative's signature.
3. Pay the Application Fee:
   • Application Fee is based on the size of your project.
     • $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 phase capacity requirement
   • Pay online ($3.50 Convenience Charge per transaction) via BillMatrix.
   • 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

Frequently Asked Questions