Greenville, SC Solar Panels
In This Guide
- 01 Solar Energy in Greenville
- 02 Solar Cost Calculator
- 03 Greenville Reviews
- 04 Key Takeaways
- 05 Greenville Electricity Prices
- 06 South Carolina Solar Incentives
- 07 Greenville Solar Production
- 08 Solar Installations in Greenville
- 09 Choosing an Installer
- 10 Leasing Solar Panels
- 11 Frequently Asked Questions
Solar Power in Greenville
Solar installation in Greenville, SC, starts with understanding how your home’s roof, shade, and electricity use affect system design. Utility rules can also vary by service area across the Upstate.
Learn what to consider before installing solar, then explore our guide to home solar panels for a clear overview of how solar works.
SOUTH CAROLINA by the Numbers
How Much Do Solar Panels Cost in Greenville, SC?
Explore a Greenville-area solar cost estimate based on Palmetto’s real installation data—not a generic national average. We use local data from communities such as Simpsonville, Mauldin, and Travelers Rest to help you understand what solar installation may cost near you.
System
- No upfront investment
- Palmetto handles all maintenance
- 90% Production Guarantee
- Comprehensive protection program included
Key Takeaways
- Solar costs and savings depend on your home—roof condition, shade, electricity use, system size, and utility rules all shape the numbers.
- Greenville solar output changes by season; longer, sunnier days boost production, while winter’s shorter days and weather reduce it.
- South Carolina incentives and export credits vary—check eligibility and your utility’s current rules before comparing solar options.
Greenville Electricity Prices
Electricity prices shape household energy costs—and help explain why Greenville residents explore solar.
South Carolina’s average electricity price rose from 12.9¢ per kWh in 2021 to 14.1¢ in 2024; the U.S. average increased from 13.7¢ to 16.5¢. These statewide figures offer context for Greenville, though your utility rate may differ.
For Greenville households, solar panels generate electricity onsite. Power they produce can reduce the amount bought from a utility, helping limit exposure to changing rates. Bill impacts depend on system size, energy use, and utility compensation rules.
Over time, a well-matched solar system may help offset utility purchases and make energy costs more predictable. Its overall value depends on installation costs, upkeep, financing, and how electricity rates change.
Price of Energy: South Carolina vs National Average
Greenville Area Utility Providers
For Greenville, SC residents served by Duke Energy, the latest figures provided are from 2023: electricity cost 12.7¢ per kilowatt-hour (kWh), below South Carolina’s 13.70¢ state average and the 16.0¢ national average.
Duke Energy’s reported 2023 rate was 1.0¢/kWh below the state average and 3.3¢/kWh below the national average. These comparisons describe average rates, not necessarily every customer’s bill.
For Greenville households, solar can reduce the amount of electricity bought from the utility, which may affect energy costs. Actual savings depend on a home’s solar production and electricity use.
Greenville Utilities Electricity Rates
South Carolina Solar Incentives
Greenville, SC residents may find state and utility programs that help with solar costs. Explore solar incentives in South Carolina.
Options include South Carolina’s 25% credit for eligible system owners, utility-specific export credits, and Santee Cooper solar or community-solar rebates. Dominion’s community-solar offer has eligibility requirements; Duke’s battery-storage incentive is for nonresidential customers. Export rates vary by utility.
The Big Beautiful Bill eliminated the 30% residential tax credit, but state and local incentives remain. With LightReach leasing, Palmetto handles the commercial ITC and passes savings through lower payments.
| Incentive | Type | Description | Source |
|---|---|---|---|
| South Carolina Solar Energy System Credit (TC-38) | State Income Tax Credit | South Carolina taxpayers who own and install a qualifying solar system may claim a nonrefundable credit of 25% of eligible costs, subject to annual limits and a 10-year carryforward. | Learn More |
| South Carolina Solar Choice and Utility-Specific Net Metering / Export Compensation | Net Metering / Net Billing | Solar customers may receive bill credits for exported electricity under utility-specific tariffs, but South Carolina does not provide one uniform statewide export-credit rate. | Learn More |
| Duke Energy PowerShare Storage (South Carolina nonresidential program) | Utility Battery Storage Demand Response Incentive | Participating South Carolina nonresidential customers with qualifying battery storage may receive enrollment, monthly capacity, renewable-charging, and curtailment-event payments. | Learn More |
South Carolina’s TC-38 credit is 25% of eligible solar system purchase and installation costs. The amount used in a tax year is limited to the lesser of $3,500 per facility or 50% of the taxpayer’s South Carolina income-tax liability; unused credit may be carried forward for up to 10 years. The credit is nonrefundable.
The taxpayer must own the qualifying system installed at a facility in South Carolina, so a renter or a customer whose system is leased generally cannot claim the credit. Eligible costs may include equipment and installation expenses. SCDOR guidance says a battery connected to a solar system and charged entirely by solar may qualify; a standalone or grid-charged battery does not qualify under that guidance. Claimants should review the current TC-38 instructions and retain invoices and system documentation.
South Carolina’s solar billing benefit depends on the electric utility, the customer’s tariff, and sometimes the date of the interconnection application. Investor-owned utilities use Solar Choice or other approved tariff options; credits for exported energy can depend on time of use, and fixed or non-bypassable charges may still apply. Older customers may have different transition or grandfathering terms.
Electric cooperatives and municipal utilities may set their own interconnection and export-credit rules, so their terms should not be assumed to match Duke Energy. Before signing an installation contract, homeowners should obtain the applicable tariff in writing and check export-credit values, monthly charges, annual or monthly true-up rules, and any battery-export limits.
Duke Energy’s PowerShare Storage program is for qualifying nonresidential customers in South Carolina; it is not a residential battery rebate. Published payment terms include a one-time $120 per enrolled kilowatt connectivity credit, an additional $30 per kilowatt when the battery is charged using renewable energy, $3.50 per enrolled kilowatt per month subject to a system-loss factor, and $0.10 per kilowatt-hour for energy used during curtailment events.
Participants allow Duke to dispatch enrolled storage during approximately 30–36 events per year, with each event lasting up to four hours. Businesses should confirm eligibility, enrollment availability, equipment requirements, and final payment calculations directly with Duke Energy.
Ready to start saving with solar?
Speak with a Palmetto solar expert to find out exactly how much you can save with South Carolina incentives.
Get a Free QuoteGreenville Solar Irradiance
Solar panel production varies throughout the year based on daylight hours, weather patterns, and sun intensity. Understanding how seasons affect your solar system helps set realistic expectations for your investment.
Greenville’s sunny seasons support solar, while summer clouds, rain, and shorter winter days shift monthly output. With proper system design, local weather patterns don’t prevent reliable year-round production.
Solar Production in Greenville by Month
What Can Your Solar System Power?
Summer Production (July)
In July, your 10 kW system could power:
- 3.6 average homes (15 kWh/day per home)
- or Run central AC for 18 hours AND power all other appliances
- or Fully charge 5.4 Tesla Model 3 electric vehicles
Winter Production (December)
In December, your 10 kW system could power:
- 2 average homes (15 kWh/day per home)
- or Keep your home heating system running for 15 hours
- or Fully charge 3 Tesla Model 3 electric vehicles
Annual Production
Over a year, your 10 kW system could:
- Offset 10 tons of carbon dioxide emissions
- or Equal the environmental benefit of planting 175 trees
- or Save approximately $4,234 in electricity costs
Want to know exactly how much solar can power your home?
Get a personalized solar analysis based on your actual home, energy usage, and roof characteristics.
Get My Custom EstimateSolar Panel Systems in Greenville
We’ve organized solar installation data from across the United States to show where homes have gone solar in Greenville, SC. Explore the map and click a hexagon to see the number of installations in that area. Discover neighborhoods and communities where your neighbors have made the switch to solar.
How to Choose a Solar Installer in Greenville
Verify the license
South Carolina does not have one single solar-contractor license. Residential solar work requires credentials covering the tasks being done: electrical work requires a residential-builder specialty registration with an electrical classification or a residential-builder license. Roof-mounted systems also require the appropriate roofing specialty registration or a residential-builder license; added structural framing may require a carpenter classification. Ask the installer for the business and individual license or registration details for each part of the job, including subcontractors, then confirm them with the South Carolina Department of Labor, Licensing and Regulation (LLR), principally its Residential Builders Commission. See the state’s licensing guidance for the credential categories.
Look for certified installers
Ask who will design and install your system, and whether those people hold relevant NABCEP certifications or manufacturer certifications. These credentials can indicate training or demonstrated knowledge, and manufacturer credentials may relate to specific equipment. Ask what the certification covers and whether the people doing your work hold it. Certifications are useful comparison points, but they do not replace South Carolina’s required licenses or guarantee a particular project outcome.
Compare quotes the same way
Request written proposals with the same assumptions. Compare:
- System size: DC capacity in kilowatts (kW), and the price per watt; check that you are comparing similar system sizes.
- Equipment: panel and inverter brands and models, not just general descriptions.
- Expected production: estimated kilowatt-hours (kWh) per year, plus the assumptions behind the estimate. Ask each installer to explain differences rather than relying on a sales estimate alone.
- Coverage: panel product and performance warranties, inverter warranty, workmanship coverage, and coverage for roof penetrations. Ask who handles a claim and for how long.
- Responsibilities and cost: who obtains permits and submits the utility interconnection application; total cash price or monthly payment; and any payment escalator. For financing or a lease, get the complete terms in writing.
Permits, interconnection and your HOA
Building and electrical permits come from the local authority having jurisdiction—typically a city or county building-code office—and requirements depend on the property. Ask which permits apply and who will obtain them. The homeowner or installer applies for utility interconnection with the electric utility serving the property. Depending on your address, that may be Dominion Energy South Carolina, Inc; Duke Energy Carolinas, LLC; South Carolina Public Service Authority; or Duke Energy Progress – (NC). Confirm the provider and application process before signing. South Carolina has no enacted statute preventing an HOA from banning or restricting residential rooftop solar; state guidance says HOAs may restrict panel placement. Check your HOA’s rules early.
Red flags
- Pressure to sign the same day or before you can review the contract.
- Unlicensed crews, or out-of-state crews whose South Carolina credentials and responsible contractor you cannot verify.
- Vague production estimates, unexplained savings claims, or reluctance to provide equipment and warranty details in writing.
- A large upfront deposit without clear written milestones, payment terms, and cancellation terms.
- Promises of federal homeowner tax credits for purchases in 2026; homeowner credits ended December 31, 2025.
Leasing Solar Panels
For Greenville homes served by Duke Energy Carolinas (DEC), Palmetto LightReach offers a solar power purchase agreement (PPA). Availability depends on your utility and address. With a PPA, you pay a set price per kilowatt-hour for the electricity the system produces, so payments can vary by season. Learn more about how buying and leasing solar compare.
Unlike a cash purchase, a LightReach PPA does not require you to buy the panels upfront. Palmetto owns the system and handles maintenance under the agreement, while you pay for its solar energy instead of managing system upkeep yourself.
Solar PPA bills may be higher in sunny summer months and lower in winter as production changes. Review the agreement terms and learn more about Palmetto LightReach.
Go solar without the investment
With LightReach, there are no investment costs to recoup, loan payments to manage, or maintenance needs to take on. As soon as your panels are active, your solar savings are too!
Explore LightReach LeasingFrequently Asked Questions
Yes. Greenville homeowners may receive bill credits for solar electricity sent to the grid, but the rules depend on the utility and rate plan. Duke Energy Carolinas customers generally use monthly net metering with a time-of-use rate.
For Duke customers, exported energy offsets electricity bought during the same time period; remaining excess is credited at a lower rate and rolls forward month to month. There is no annual true-up. Check your utility tariff, since Greenville-area providers may have different export-credit rules.
Yes, owned solar panels may increase a home’s resale value in Greenville, SC. A Zillow study found homes with solar panels sold for about 4.1% more on average, though the effect varies by home and local market.
This potential increase applies to purchased or otherwise homeowner-owned systems, not leased or third-party-owned (TPO) systems. With a lease or PPA, a buyer may need to assume the agreement, which can affect resale differently. Review the contract’s transfer terms.
In Greenville, homeowners can go solar through a LightReach lease with no upfront cost and a low fixed monthly payment. The calculator above estimates $72–$117 per month by home size, or $93 for a typical 2,000–3,000-square-foot home.
A cash purchase is another option: the calculator estimates $20,936 before the shown $3,500 South Carolina incentive, or $17,436 after it, for a typical home. The federal 30% residential tax credit is no longer available for cash purchases following the 2025 law change. Actual costs depend on your home and system design.
In Greenville, Palmetto LightReach is an all-inclusive solar lease with no upfront cost. One monthly payment covers the panels, installation, monitoring, maintenance, and protection program, including a 90% Production Guarantee.
A typical 7.38 kW system is estimated at about $93 per month, based on South Carolina’s 1,442 kWh/kW annual production ratio and a $0.105/kWh rate. Lease payments are typically lower than a homeowner’s current electricity bill, so savings may begin from day one.
Yes. Solar panels work in Greenville, SC, which averages about 5.2 peak sun hours per day. They can still generate electricity on cloudy days because daylight passes through clouds, though output is lower than in direct sun.
Production changes with the seasons: longer, sunnier spring and summer days generally yield more, while shorter winter days reduce output. Greenville’s summer clouds and rain can also lower production temporarily, but they do not prevent year-round generation.
A typical Greenville home system of about 7.4 kW can produce roughly 10,000–10,500 kWh per year, based on the article’s NREL PVWatts estimates of about 9,982 kWh annually for a 7 kW system.
Actual output varies with roof direction and pitch, shade, weather, and panel condition. Production is generally higher in sunnier months and lower during Greenville’s shorter winter days.
Solar can make sense in Greenville, SC, where homes average about 5.2 peak sun hours per day. A well-designed system can reduce electricity bought from the utility; the article estimates roughly $43,000 in 25-year savings for an average home, though results depend on roof shade, energy use, system cost, and utility rules.
LightReach, Palmetto’s solar lease program, removes the upfront cost barrier entirely: homeowners can go solar with no money down and start saving from day one. Check your utility’s export-credit terms, since they affect the value of excess power.