How Dominion Solar Works in South Carolina

What Dominion Solar offers South Carolina homeowners

Dominion Solar is a residential solar program run by Dominion Energy, the utility company that serves much of South Carolina. The program lets homeowners install solar panels on their property and receive credits on their electric bill for the power their system generates. You own the panels outright—there is no lease or monthly payment to Dominion—and you keep any tax credits or rebates the state or federal government offers.

The program works through what is called net metering. When your solar panels produce more electricity than you use, that extra power flows back to the grid, and Dominion credits your account. When you use more power than your panels produce (at night, or on cloudy days), you draw from the grid and pay for it at your regular rate. At the end of each billing cycle, you pay only for the net amount of electricity you consumed.

Dominion Solar is available to customers in Dominion Energy's South Carolina service territory, which covers most of the state except for areas served by other utilities like Duke Energy Carolinas or Santee Cooper. You can check whether your address is in Dominion's territory on their website before moving forward.

Key Takeaways

• Dominion Solar is a net metering program that credits your bill for solar power you generate and send back to the grid.
• You own the solar panels and keep federal and state tax credits; Dominion does not own or lease the system to you.
• The program is open only to customers in Dominion Energy's South Carolina service area, which you can verify on their website.
• You will need to work with a licensed solar installer to design and install your system, then register it with Dominion to begin receiving credits.
• Your bill will show both the power you used from the grid and the credits you earned from solar generation.

How to register your solar system with Dominion

Once your solar panels are installed, you cannot start receiving credits until your system is registered with Dominion Energy. The registration process begins with your solar installer, who will submit the necessary paperwork to Dominion on your behalf. This paperwork includes details about your system's size, location, and equipment specifications.

Dominion will review the application and conduct an inspection to make sure the installation meets electrical and safety codes. After the inspection passes, Dominion will install a special meter (called a net meter) that tracks power flowing in both directions—from the grid to your home and from your panels back to the grid. Only after this meter is installed and activated will you begin earning credits.

The timeline from inspection to meter installation typically takes a few weeks, though it can vary. Your solar installer can tell you what to expect in your specific case and will coordinate with Dominion on the scheduling.

Understanding your bill under Dominion Solar

Your monthly bill will look different once your solar system is registered. Instead of a single electricity charge, you will see two line items: the power you consumed from the grid and the credits you earned from solar generation. If your solar production exceeds your consumption in a given month, you will carry a credit forward to the next month rather than receiving a payment.

The credit rate you receive for solar power is the same as the rate you pay for grid electricity—this is the core principle of net metering. Some months (typically winter, when days are shorter) you may use more power than you generate. Other months (typically summer) you may generate more than you use. Over the course of a year, the credits and charges balance out based on your actual usage and production patterns.

At the end of the year, if you have accumulated credits, Dominion's policy determines what happens to them. Some utilities roll unused credits into the next year; others pay out the balance or reset it. Check Dominion's current net metering terms to understand how year-end credits are handled in your case.

What solar system size makes sense for your home

The size of your solar system depends on how much electricity your household uses and how much roof or ground space you have available. A typical residential system ranges from 5 to 10 kilowatts, though some homes use smaller or larger systems. Your solar installer will review your past electric bills to estimate your annual consumption and recommend a system size that matches your needs.

Many homeowners aim to generate enough power to cover most or all of their annual electricity use. However, you do not have to size your system that way—some people install a smaller system to offset part of their bill, or a larger system if they plan to add an electric vehicle or heat pump later. The choice is yours, and your installer can model different scenarios based on your roof orientation, local weather patterns, and budget.

Keep in mind that a larger system costs more upfront but may produce more credits over time. A smaller system costs less but may not reduce your bill as much. Your installer can show you the payback period and long-term savings for different sizes so you can decide what works for your situation.

Federal and state incentives you may receive

The federal government offers an Investment Tax Credit (ITC) that allows you to deduct a percentage of your solar installation cost from your federal income taxes. The percentage has changed over time, so check the current rate before you install. This credit applies to the full cost of the system, including equipment and labor, and you claim it on your tax return in the year the system is installed.

South Carolina also offers state-level incentives, though these vary and change periodically. Some programs provide rebates or tax credits for solar installations. Your solar installer will know which state programs are currently available and can help you understand whether your system qualifies. The Database of State Incentives for Renewables and Efficiency (DSIRE) also lists current South Carolina solar incentives.

These incentives reduce your out-of-pocket cost and improve the financial return on your investment. Combined with the bill credits you earn through net metering, they make solar more affordable for many homeowners. Your installer can provide a detailed breakdown of the incentives you may receive and how they affect your total cost and payback timeline.

Choosing a solar installer in South Carolina

Dominion does not install solar systems—you will need to hire a licensed solar contractor to design and install your panels. South Carolina requires solar installers to be licensed, so verify that any contractor you consider holds a current license with the South Carolina Department of Labor, Licensing and Regulation.

When comparing installers, ask for references from past customers, written quotes that break down equipment and labor costs, and details about their warranty coverage. A reputable installer will explain how net metering works, walk you through the registration process with Dominion, and be available if questions arise after installation. They should also be familiar with Dominion's specific requirements and timelines for inspection and meter installation.

Some installers offer financing options such as loans or leases, while others work only with cash purchases. Understand the terms before you commit, and remember that you own the system outright under Dominion Solar—you are not leasing it from Dominion or the installer.

Frequently Asked Questions

Do I need battery storage to use Dominion Solar?

No. Net metering allows you to use the grid as your storage—when your panels produce more power than you need, the excess goes to the grid and you earn a credit. When you need power at night or on cloudy days, you draw from the grid. Battery storage is optional and adds significant cost; most homeowners do not need it to benefit from solar under net metering.

What happens to my solar credits if I move?

If you move, you cannot transfer your credits to a new address. Any unused credits are typically forfeited, depending on Dominion's policy. This is one reason to size your system to match your actual usage rather than oversizing it. Ask Dominion about their policy on credits when you register your system.

Can I install solar if I have a shaded roof?

Shade significantly reduces solar production. Your installer will assess your roof's sun exposure throughout the day and year. If shade is a problem, you may have a smaller system or lower production than expected. Some homes have ground-mounted systems instead of roof-mounted ones if shading is severe, though this requires available yard space.

How long do solar panels last?

Most residential solar panels are warrantied for 25 years and typically produce electricity for 30 years or more. They degrade slowly over time—usually about 0.5 percent per year—but remain functional well beyond the warranty period. Your installer can provide details about the specific panels and warranties included in your system.

What if Dominion changes its net metering policy?

Net metering rules can change, and utilities sometimes petition regulators to modify them. If Dominion's policy changes after your system is installed, the new rules typically apply to new customers first, with existing customers grandfathered under the old terms for a set period. Stay informed by checking Dominion's website or asking your installer to alert you to policy changes.