South Carolina
Solar in North Charleston, SC: Costs, Savings, Incentives & Local Options
Which utility serves your address, what the City permit costs, and what an owner can still claim.
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North Charleston Solar at a Glance
| Factor | North Charleston, SC |
|---|---|
| Counties | Charleston (97,111 residents) and Dorchester (32,134); 129,245 in all, up 2.1% in a year (Census V2025) |
| Electric utility | Dominion Energy South Carolina as the principal utility; parts of the tri-county area are Berkeley Electric Cooperative. Shares within the city are not published, so check your address |
| Electricity context | Dominion averaged 14.59¢/kWh for homes in 2024, Berkeley Electric 14.93¢ (EIA-861, our division) |
| Export rules | Dominion: Solar Choice rider on Rate 5, 20 kW AC limit. Berkeley Electric: Renewable Surplus Rider at 6.03¢/kWh |
| Incentives | SC credit 25% of cost, up to $3,500 a year (SC Code §12-6-3587). Federal §25D ended for homeowners after 2025 |
| System considerations | Size to daytime use, not annual surplus; 1995 median build year means roof age matters |
| Permitting | City Building Inspection Department, 2500 City Hall Lane; Customer Portal; $30 filing fee per permit |
| Battery relevance | Higher on Dominion (on-peak 29.907¢ vs 15.074¢ off-peak); Charleston County averaged 24 damaging wind events a year, 2015–2025 |
| Next step | Get Solar Options or run the savings calculator on your own bill |
Sources at the foot of the page, retrieved 5 October 2026 unless stated.
North Charleston solar guides
Who in North Charleston is in a position to go solar?
North Charleston’s solar market is smaller than its population suggests. Of 53,133 housing units, 48.5% are owner-occupied, against 55.6% in the City of Charleston next door (ACS 2023 5-year). The median owner-occupied home is valued at $267,700, and median household income is $62,956 (ACS 2020–2024).
Those figures point to a buyer who pays for solar out of a tight budget, where the size of the state credit each year and the loan terms matter more than a panel brand.
Homeowners here usually look at solar for one of three local reasons: Dominion’s summer bills on a 1990s heat pump, outage worry in a county that averages 24 damaging wind events a year, or the 25% state credit before more of the federal picture changes.
Renters, who are just over half the city, cannot sign a lease or loan for a roof they do not own; community-scale options are covered on the South Carolina solar page.
What do North Charleston homes pay for electricity?
On Dominion’s standard Rate 8, a 1,000 kWh summer month in North Charleston costs about $172.90: a basic facilities charge of $0.36164/day (about $10.99 a month), 15.878¢ for the first 800 kWh and 17.442¢ above that in summer.
That is our arithmetic on the July 2026 tariff, before taxes and riders not printed on the rate sheet.
Going solar on Dominion moves you to Rate 5, where the price depends on the hour: 29.907¢ on-peak (4–8 p.m. in summer (May–Sep), 6–9 a.m. in winter), 15.074¢ off-peak and 9.623¢ super off-peak.
A household that runs the dryer and dishwasher at 6 p.m. in July pays twice the off-peak price for that energy. Berkeley Electric members stay on the co-op’s standard rate, but its export rider cannot be combined with time-of-day or demand rates.
How much solar does a North Charleston home need?
Start from your last twelve bills, not a city average. Both of North Charleston’s utilities cap a residential system at 20 kW AC, and Berkeley Electric adds its own sizing rule: annual kWh ÷ 1,800, or average monthly kWh ÷ 150. A Berkeley member using 12,000 kWh a year is therefore capped near 6.7 kW.
On Dominion, oversizing has a cost: surplus banks inside each price period and is cashed out every November at avoided cost, well under the retail price.
A system sized to cover daytime use, with a battery if the evening peak matters to you, usually earns more per panel than one sized to wipe out the annual bill. Our system size calculator works from your own usage.
How we estimate savings for a North Charleston roof
We do not publish a typical North Charleston saving, because the answer depends on which utility you have, when you use power and what you pay for the system.
Our method: value every solar kWh you use on site at the rate it replaces (on Rate 5, mostly the 15.074¢ off-peak price at midday), value exports at what your utility credits for them, subtract the minimum bill and fixed charges that solar cannot touch, then compare with the loan payment or cash cost net of the state credit.
The worked numbers, with each input labelled as an example, are on the North Charleston solar cost page.
North Charleston City permit fees at three example contract values
We publish no installed price for North Charleston until we hold twelve dated local quotes. The permit fee is a real line every system pays.
| Example contract | Building permit fee | Plan check (½) | Filing fees + electrical | City total |
|---|---|---|---|---|
| $15,000 | $85 | $42.50 | $90 | $217.50 |
| $25,000 | $135 | $67.50 | $90 | $292.50 |
| $35,000 | $185 | $92.50 | $90 | $367.50 |
HyreSolar arithmetic on the City of North Charleston permit fee schedule (retrieved 5 October 2026): $15 for the first $1,000 plus $5 per further $1,000; plan check half the permit fee; $30 filing fee on the building and electrical permits; $30 electrical alteration fee, assuming the City bills a solar tie-in as an alteration.
A service upgrade is billed at $0.25 per amp instead. Contract values are examples, not prices.
Which incentives apply to a North Charleston system?
The SC solar energy credit (SC Code §12-6-3587) is 25% of the cost of a system you own. You claim the lesser of $3,500 or half your state tax liability each year on Form TC-38, and carry the rest forward up to 10 years.
For a household near North Charleston’s $62,956 median income, the half-of-liability limit can bind before the $3,500 cap does, so ask a tax preparer how many years your credit will take to use.
We found no City of North Charleston or Dorchester County homeowner solar rebate. Santee Cooper’s rebate is for its own direct customers, not for Dominion or Berkeley Electric homes in the city. Details and the federal position are on North Charleston solar incentives.
Is your North Charleston address on Dominion or Berkeley Electric?
Berkeley Electric Cooperative is the largest co-op in the state and serves members in Charleston, Berkeley and Dorchester counties; its territory search says its boundaries are approximate. Dominion is the city’s principal electric utility.
Because no utility publishes a street-level split for North Charleston, enter your address in the Berkeley Electric territory search or read the name on your bill before you compare proposals.
The two deals are not interchangeable. Berkeley Electric pays 6.03¢ per exported kWh, charges a $150 application fee and a $50 inspection, and updates the credit around 1 March each year.
Dominion has no export price as such: surplus offsets lower-priced periods within the month and the remainder banks to November. A proposal modelled on the wrong utility overstates or understates savings from day one.
What happened to net metering for North Charleston homes?
Any system that applied to its utility before 1 June 2021 keeps legacy net metering until 31 May 2029; everything newer is on a Public Service Commission-approved Solar Choice tariff or, for Berkeley Electric, the co-op’s own rider.
A North Charleston home that bought a house with an older system should ask the seller which tariff the system is on, because a legacy system loses that status on 31 May 2029. The full state rule is on South Carolina net metering.
How does installation and permitting work in North Charleston?
Utility from the bill or the Berkeley map. North Charleston’s permit checklist asks for HOA, civic league or architectural review approval where one applies, so get it in writing first.
Sealed drawings from a South Carolina engineer, and an elevation certificate if the home is in a special flood hazard area and the work needs one.
Building and electrical permits through the City’s Customer Portal, with the contractor’s state licence and the contract showing scope and cost.
Dominion Solar Choice or Berkeley Electric Renewable Surplus Rider, filed in parallel.
Booked online; City inspectors work 7:30 a.m. to 3:30 p.m. on weekdays.
Switch on only when the utility says so in writing.
The full sequence with timings is on solar panel installation in North Charleston.
Do North Charleston roofs and weather change the design?
About half of North Charleston’s homes were built before 1995, so a large share of shingle roofs are on their second covering or due one. Pulling panels to re-roof costs labour twice, so price the roof before you sign a solar contract; our roof-before-solar check helps.
NOAA logged 61 hail events in Charleston County between 2015 and 2025, none of 2 inches or more, against 21 tornadoes and gusts to 83 knots.
Wind uplift, not hail, drives racking and attachment design here. The Dorchester County part of the city is not covered by that county record, so treat it as a regional guide.
Should a North Charleston system include a battery?
A battery has a clearer job on Dominion than on Berkeley Electric.
Dominion’s Solar Choice rider counts storage only if it charges from onsite renewables, and stored midday solar used in the on-peak window displaces 29.907¢ power.
On Berkeley Electric, the gap is between 14.93¢ average retail and the 6.03¢ export credit. See battery storage in North Charleston.
How do North Charleston owners pay for solar?
Cash and loans keep you the owner, which the state credit requires.
Leases must come from a lessor certified by the Office of Regulatory Staff, and power purchase agreements are not allowed in South Carolina.
With the city’s median income near $63,000, compare a loan’s total cost, not its monthly figure. More on solar financing in North Charleston.
Is commercial solar different in North Charleston?
Yes. North Charleston carries the region’s industrial base: Boeing’s 787 final assembly campus, two SC Ports container terminals and the logistics parks around them. Large flat roofs, demand charges and business tax credits change the arithmetic entirely. See commercial solar in North Charleston.
What to check before hiring a North Charleston installer
Panel installation, roof attachment and wiring sit under different SC LLR classifications. North Charleston’s permit application asks for a copy of the contractor’s state licence.
Dominion Solar Choice and Berkeley Electric’s rider produce different savings on the same roof.
The City wants one with the permit application anyway, so there is no reason a seller cannot give you one.
until midnight of the third business day after signing, by written notice (SC Code §37-2-502).
Questions to ask and a quote checklist: solar installers in North Charleston. We do not rank installers.
Questions
Who issues solar permits in North Charleston?
How much is a solar permit in North Charleston?
Is North Charleston served by Dominion Energy or Berkeley Electric?
Can I still get net metering in North Charleston?
Is there a North Charleston solar rebate?
Can renters in North Charleston go solar?
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