2026 incentives · Hilton Head Island, SC
Solar incentives in Hilton Head Island, SC
Two things changed for Hilton Head Island in 2026: the 30% federal credit ended on December 31, 2025, and Dominion Energy South Carolina moved new solar customers onto Solar Choice. Here is what is actually left, and what it is worth on a real roof.
The short answer · as of July 2026
Hilton Head Island homeowners can claim South Carolina's 25% state tax credit (Form TC-38), capped at $3,500 per tax year with a 10-year carry-forward, plus property-tax exemption on qualifying systems of 20 kW or less and sales-tax exemption on equipment. Dominion Energy South Carolina credits exported power at roughly 2.8–4.1¢ per kWh under Solar Choice. The 30% federal credit is no longer available.
Local incentive reality
The incentive picture in Hilton Head Island
Palmetto Electric Cooperative serves much of Hilton Head, with Dominion Energy South Carolina on other addresses, so the export terms behind any savings figure need confirming from your own bill rather than assumed from the island's name. Neither offers an upfront rebate, and any quote that implies the island has access to something the mainland does not is worth questioning closely.
The state credit at 25%, capped at $3,500 a year and carried forward, is the meaningful incentive, and on Hilton Head it interacts with something specific: the tree canopy. The credit is a percentage of what you spend, not of what you produce, so a heavily shaded roof that justifies only a small system produces a correspondingly small credit. Spending more to work around shade does increase the credit, but it does not necessarily improve the return.
For rental and second-home owners there is an additional layer worth raising with an accountant early, because the residential credit and the exemptions are framed around a South Carolina taxpayer's own liability and a qualifying residence. If the property is let or held through an entity, the position is different from an owner-occupied home and should be established before the system is designed rather than at the point of filing.
Written for Hilton Head Island specifically. Your own roof, bill and meter still decide the answer, which is what the free assessment settles.
Start here, it matters most
What Dominion Energy South Carolina pays you for solar in Hilton Head Island
People search for incentives and mean tax credits. In Hilton Head Island the bigger lever is what your utility credits you for the power you send back, because that applies every month for 25 years rather than once at tax time.
| Item | Current position (July 2026) |
|---|---|
| Programme | Solar Choice, which replaced one-for-one net metering for new residential systems from January 1, 2026 |
| Retail rate you avoid | about 14.4¢ per kWh for power you use as you generate it |
| Export credit | roughly 2.8–4.1¢ per kWh for power you send back, on a time-of-use basis |
| Monthly rider | about $14 a month |
| Annual true-up | Leftover credits settle each November at an avoided-cost rate |
| Upfront utility rebate | None. There is no residential cash-back programme in this territory. |
| Who confirms your territory | We do, at the assessment. In and around Hilton Head Island, Palmetto Electric Cooperative serves much of the island, and terms differ. |
The practical consequence: a kilowatt-hour you use yourself is worth roughly three to five times a kilowatt-hour you export. That is why we size to your consumption rather than to your roof area, and why load shifting or storage now matters more in Hilton Head Island than it did two years ago.
Rebates
Why Hilton Head Island has no utility rebate, and who does
There is no upfront residential solar rebate in Dominion Energy South Carolina territory. We say that plainly because it is one of the most common false expectations we meet, usually set by a national page that lists every South Carolina programme without saying which utility each one belongs to.
For context, and so you can check anything you have been told: Santee Cooper, which serves much of the Grand Strand, runs a per-kW rebate of $950 up to $5,700, requiring a NABCEP-certified crew and Trade Ally participation, with a 6 kW-AC lifetime cap per meter and an annual funding waitlist. Duke Energy has run PowerPair for solar plus battery, but its Progress territory closed to new applications in late 2025 and Carolinas has been at or near capacity, so it should not be counted on without checking your address.
None of those apply in Hilton Head Island. If a salesperson has quoted you a utility rebate here, ask which programme and which utility, and check it against the utility's own page before you sign anything.
Statewide rules
The parts that are the same everywhere in SC
Three incentives apply identically across South Carolina, so we explain them once rather than eighteen times. In short: a 25% state income tax credit on Form TC-38 capped at $3,500 per tax year with a 10-year carry-forward, property-tax exemption on qualifying systems of 20 kW or less, and sales-tax exemption on equipment. The 30% federal credit expired for systems placed in service on or after 1 January 2026.
The cap is the part that catches people out. Because you can only claim $3,500 a year, a system whose 25% credit is $6,000 arrives across two tax returns rather than as one payment, and low state tax liability stretches it further still.
Full mechanics, worked examples and the utility-by-utility comparison →
Eligibility depends on your circumstances and none of this is tax advice, so confirm with a tax professional. Property-tax treatment is administered locally, see Beaufort County below.
Beaufort County
What the exemption is worth in Beaufort County
An eligible rooftop system of 20 kW or less should not increase your assessed value in Beaufort County, so you are not paying annually for an improvement that is reducing your power bill.
The exemption's cash value scales with local millage, so it is worth more in higher-millage jurisdictions. We do not publish a millage figure for Beaufort County without an auditor-current schedule on file, because a wrong number here is worse than no number. Your assessment walks through how the exemption works for your parcel instead.
The 20 kW threshold matters if you are considering a large system in Hilton Head Island. Sizing past it can cost you the exemption entirely, which is another reason right-sizing beats maximising, and another reason Dominion Energy South Carolina's export rate of roughly 2.8–4.1¢ per kWh should shape the design.
Adding it up
What a Hilton Head Island homeowner actually nets in 2026
An illustrative stack on a 9.5 kW system at the local benchmark. An example to show the shape of it, not a quote and not a promise.
| Line | Amount |
|---|---|
| 9.5 kW system at $2.59 per watt | $24,605 |
| State sales tax | Exempt |
| Federal credit | $0, expired for 2026 installs |
| Dominion Energy South Carolina rebate | $0, no programme in this territory |
| SC 25% credit (TC-38) | −$6,033, claimed across 2 tax years |
| Net cost | about $18,454 |
| Annual property tax added | $0 on qualifying systems ≤20 kW |
For what that net figure means as a payback period, and why the answer depends far more on when you use power than on which panels you buy, see solar panel cost in Hilton Head Island.
Businesses
Incentives for Hilton Head Island businesses
Commercial solar is treated differently from residential. Federal commercial provisions and depreciation treatment may still apply where the residential credit does not, and the structuring genuinely matters.
We are installers, not tax advisers, so we will not model your commercial position for you. What we will do is scope and build the system, document it properly for your accountant, and route the tax questions to your CPA rather than guess at them.
Commercial solar in Hilton Head Island · how we approach commercial projects
Hilton Head Island incentives FAQ
Common questions about solar incentives in Hilton Head Island
What solar incentives can I get in Hilton Head Island, SC in 2026?
South Carolina's 25% state income tax credit (Form TC-38) is the main one, worth 25% of installed cost, capped at $3,500 per tax year with a 10-year carry-forward. Qualifying systems of 20 kW or less are also exempt from property tax, and solar equipment is exempt from state sales tax. The 30% federal credit expired for systems placed in service on or after January 1, 2026.
Does Hilton Head Island still have net metering?
Not in the original form. Dominion Energy South Carolina's one-for-one net metering closed to new residential systems on December 31, 2025, and new customers are enrolled in Solar Choice instead. Under that programme exported power is credited at roughly 2.8–4.1¢ per kWh rather than at the about 14.4¢ per kWh retail rate, with a rider of about $14 a month and an annual true-up in November.
How do I claim South Carolina's 25% solar tax credit?
You claim it on South Carolina Form TC-38 with your state income tax return for the year the system is placed in service. Because the credit is capped at $3,500 per year and at 50% of your state tax liability, most systems are claimed across two or three returns using the 10-year carry-forward. Keep your final invoice and commissioning documentation. Confirm your own eligibility with a tax professional.
Is there a Dominion Energy South Carolina rebate for solar in Hilton Head Island?
No. Dominion Energy South Carolina does not offer an upfront residential solar rebate, so there is no cash-back programme to stack on top of the state credit here. That differs from Santee Cooper territory on the Grand Strand, which does run a per-kW rebate, and from Duke territory, which has run solar-plus-battery incentives.
Will solar panels increase my property taxes in Hilton Head Island?
South Carolina exempts qualifying residential renewable energy systems of 20 kW or less from property tax, so an eligible rooftop system should not raise your assessed value. Confirm your own position with Beaufort County and a tax professional, since eligibility depends on your circumstances.
Are there solar incentives for Hilton Head Island businesses?
Commercial solar is treated differently from residential and federal commercial provisions such as 48E and depreciation may still apply. We do not give tax advice on commercial structuring, and we will route those questions to your CPA rather than guess. See our commercial solar page for how we scope the work itself.
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Solar incentives near Hilton Head Island
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Free, no-pressure assessment
See which incentives you actually qualify for in Hilton Head Island
We will confirm your utility and territory, size a system to your real usage, and show you what the state credit is worth in your tax position, with no guaranteed-savings math.
Mon–Sat, 10am–6:30pm ET · We typically follow up within the hour.