Solar Panel Installation in Charleston, SC
Local sun, utility rules, permits and installers
Charleston has about 1,370 kWh a year per kW of rooftop solar (our estimate). Your utility decides what exported power earns, so see the rules for Dominion Energy South Carolina, and Berkeley Electric Coop below, then get quotes.
Charleston solar at a glance
Utility rules and programs for Charleston
Dominion Energy South Carolina, and Berkeley Electric Coop serve Charleston County, so which rules apply depends on your address.
| Utility | Type | Solar export rule |
|---|---|---|
| Dominion Energy South Carolina, Inc | investor-owned | Dominion’s Solar Choice plan runs on its time-of-use Rate 5: exports net within the same price period, credits roll over to the November bill, and leftovers are paid at avoided cost (about 3.8 cents per kWh and a $14 monthly facilities charge, per an installer guide; Dominion’s tariff was not read). Customers who applied before June 1, 2021 may stay on the older rider until May 31, 2029. |
| Berkeley Electric Coop Inc | member-owned cooperative | A search summary of Berkeley Electric’s solar page lists a net metering rider for homes up to 20 kW AC, a $150 interconnection fee and a $50 field inspection fee; its site blocked our direct read and we could not confirm the credit rate. |
Program details are from each utility’s own pages (read October 2026). See the South Carolina incentives table for statewide credits and a status for every program.
Permits and approvals in Charleston
- Building Inspections / Permit Center, City of Charleston: permit information · (843) 577-5550
- The city’s residential solar sheet says a ‘Solar Panel’ permit plus a separate electrical sub permit are needed, with a roof plan, a sealed structural report and an electrical single-line diagram. Net-metered systems need approval and a second meter from the utility.
- The utility must approve the connection before you switch on: ORS overview of Dominion Solar Choice · Berkeley Electric renewable energy page · your own utility’s interconnection page.
- Check any contractor on the SC LLR contractor license lookup before you sign.
- We found no South Carolina law that stops an HOA from banning rooftop solar; House Bill 4460 (2025), which would protect systems not visible from the street, was still in committee (see the bill status). Get written HOA approval before you sign.
Fees and steps change; confirm with the office before you start. We have not verified timelines for Charleston.
Costs and savings
We do not have verified installed prices for Charleston alone. The South Carolina figures above show what to expect; real quotes depend on your home, equipment and installer. Try the solar savings calculator, and get at least two written quotes.
Choosing an installer
- License: check the contractor on the SC LLR contractor license lookup and that the license covers this work.
- Quote: ask for an itemized written quote that names the equipment, warranties and who pulls the permit and handles the utility approval.
- Compare: get two or three quotes and compare them line by line, not only the total.
Get solar quotes in Charleston
Tell us about your project in Charleston. We reply ourselves and match you with a licensed installer who serves your area. It is free, with no obligation, and nothing is shared with an installer unless you choose one.
More for Charleston
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Solar Panel Installation in Charleston FAQs
Is solar worth it in Charleston?
The sun is strong (about 1,370 kWh a year per kW, our estimate), but export credits are low, so solar pays most when sized to what you use at home or paired with a battery. See the South Carolina incentives for the state credit.
Is there a federal solar tax credit in 2026?
No. The federal 25D credit ended for expenditures after December 31, 2025. South Carolina allows an income tax credit of 25 percent of a solar system’s cost, up to $3,500 a year, with unused credit carried forward up to 10 years (SC Code 12-6-3587).
Do I need a permit for solar panels in Charleston?
Usually yes, and the utility may need to approve solar and batteries. Building Inspections / Permit Center, City of Charleston handles permits in Charleston; see the permit information above.
How do I find a licensed installer in Charleston?
Use the quote button on this page. We reply ourselves and match you with a licensed installer who serves your area; you can check any contractor on the SC LLR contractor license lookup.
Sources: sunshine and climate NASA POWER; hazards FEMA National Risk Index; utility numbers EIA-861 (2024); prices EnergySage (October 2026) and Generac (U.S.); credits IRS and the South Carolina Department of Revenue; permit information from the city or town’s own page; utility programs from each utility’s own pages (October 2026). General information, not financial, tax, legal or electrical advice. See our editorial policy.
Where to buy
Amazon shows many brands. Use the checklist to compare them.
What to check before you buy:
- Rated watts and connector type match your power station
- Folding panels: weight and weather rating are listed
- Reviews from people using it for the same job