Summerville, SC
Solar Incentives in Summerville, SC
Every incentive a Summerville home, business or farm can use, with the amount, the catch and where we checked it.
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Every solar incentive open to a Summerville property, checked at source
| Incentive | Provider | Who qualifies | Amount and maximum | How to apply | Deadline / status |
|---|---|---|---|---|---|
| Solar energy income tax credit | State of South Carolina (SCDOR) | Taxpayers who buy and install a system on SC property; system certified by SRCC or an equivalent | 25% of cost; claim the lesser of $3,500 or 50% of SC liability each year; 10-year carryforward | Form TC-38 with your SC return after installation is complete | No sunset for solar |
| Clean Energy Credit | SCDOR (Form TC-54) | Businesses | Up to $500,000 a year; 15-year carryforward | Form TC-54 | Current |
| Residential Clean Energy Credit (§25D) | IRS | No one, for new systems | — | — | Ended for property placed in service after 31 December 2025 |
| Clean Electricity Investment Credit (§48E) | IRS | Businesses and lessors, including leased home systems | Business credit; terms set by the IRS | Form 3468 | Ends for solar placed in service after 2027 where construction begins after 4 July 2026 |
| Solar Choice export credits | Dominion Energy SC | Dominion customer-generators up to 20 kW AC | Monthly kWh netting by time-of-use period; annual surplus paid in November at avoided cost | Interconnection application through your installer | Applies to applications from 1 June 2021; at least 10 years on the rider |
| Renewable Surplus Rider | Berkeley Electric Cooperative | Members up to 20 kW AC, not on time-of-day or demand rates | 6.03¢ per exported kWh | Application ($150) and inspection ($50) | Credit updated each year around 1 March |
| Solar for All | SC Office of Resilience / EPA | — | — | — | Ended by EPA in August 2025; not available |
Each row checked at the source listed at the foot of the page on 5 October 2026.
How the South Carolina credit works for a Summerville household
The credit is set by SC Code §12-6-3587. It covers the cost of purchasing and installing the system, which must be certified by Solar Rating and Certification Corporation, or an equivalent the State Energy Office endorses. Act 47 of 2019 re-enacted it, and for solar it has no end date.
The limit that bites is the annual cap. On an example $28,000 system the credit is $7,000, which is two years at $3,500 for a household whose South Carolina tax is at least $7,000 a year.
A household with $4,000 of state tax can take only $2,000 a year (half its liability), so the same credit takes four years.
With Summerville’s median household income at $81,046, many owners will sit near that line, so ask your tax preparer before a salesperson counts the whole credit as year-one cash. Full detail: the South Carolina solar tax credit.
What the end of the federal credit means for Summerville buyers
The IRS states that §25D “is not available for any property placed in service after December 31, 2025.” A Summerville system finished in 2026 earns nothing federally for the homeowner.
A leasing company can still claim §48E on a leased system, subject to IRS Notice 2025-42’s construction rules, and may pass some value to you through the lease price. See what the end of 25D means.
Utility programs: Dominion and Berkeley Electric in Summerville
Neither utility pays an upfront rebate to Summerville homeowners as far as we could find on their own pages. Their incentive is how they credit exports.
Dominion’s Solar Choice requires Rate 5 and pays any surplus left at the November true-up at avoided cost, so it rewards systems sized to your own use.
Berkeley Electric pays a flat 6.03¢, which is below what members pay for power (an average of 14.93¢ in 2024), so the same logic applies.
Santee Cooper’s rebate of $0.95 per watt AC (up to 6 kW AC) covers customer-owned systems only (not leases), installed by a Santee Cooper Solar Electric Trade Ally.
Berkeley Electric buys its wholesale power from Santee Cooper, but co-op members are not Santee Cooper retail customers, so do not let a proposal count that rebate unless you can show a Santee Cooper bill. Compare every utility on South Carolina net metering.
Town of Summerville and county incentives
We found no solar rebate, fee waiver or property-tax abatement for homes from the Town of Summerville, Dorchester County, Berkeley County or Charleston County. The Town charges its normal building and electrical permit fees on solar work.
On property tax, our search of SC Code Title 12 Chapter 37 found no residential solar exemption; the only solar text there concerns manufacturers. If a seller tells you otherwise, ask for the ordinance number.
Batteries, businesses and farms around Summerville
Batteries: we could not confirm whether the state credit covers a battery, so we do not say either way; ask SCDOR or your preparer. Dominion counts storage within Solar Choice only if it charges solely from onsite renewables. See Summerville battery storage.
Businesses: the TC-54 Clean Energy Credit and federal §48E, within its deadlines, are the main routes; the TC-58 Solar Energy Property Credit for systems of 1,900 kW or more is listed by SCDOR as repealed on 31 December 2024. Commercial solar in Summerville.
Farms: Dorchester County farms use the same business routes; USDA programs are covered with their caveats on solar for farms near Summerville.
Claiming the Summerville incentives: order and paperwork
The credit is a share of purchase and installation cost; Town permit fees paid as part of the contract should appear on the invoice.
Ask the installer for the certification of the equipment, because the credit requires it.
They date the completion of installation, which decides the tax year you first claim.
With your South Carolina return for the year the system is installed; carry any unused credit forward.
Stacking and what happens if an incentive changes
For a Summerville owner the stack is short: the state credit plus your utility’s export terms. Both can change.
Berkeley Electric revisits its credit every year around 1 March; Dominion’s rider was last reset under PSC Order No. 2026-374 and guarantees at least ten years on the rider, not ten years at today’s prices.
The state credit has no sunset but is set by statute, which the legislature can amend. Judge a system on what it is worth without any future incentive.
If a seller’s savings depend on a program not in the table above, it is not verified.
Questions
What solar incentives are available in Summerville, SC in 2026?
Does the Town of Summerville offer a solar rebate?
Can a Summerville homeowner get the Santee Cooper solar rebate?
Is there a property tax exemption for solar in South Carolina?
Do I get the state credit if I lease my panels?
How do I claim the South Carolina solar credit?
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