Greenville, SC
Solar Installers in Greenville, SC
How to check and compare the companies quoting your roof, without a ranking.
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What does the Greenville installer market look like?
Greenville installers work a city where 41.2% of homes are owner-occupied and the median house was built in 1987 (ACS 2023 5-year), so a large share of their residential leads are older roofs on owner-occupied single-family streets, plus businesses across Greenville County’s manufacturing base.
Expect three kinds of seller: local contractors who install with their own crews, regional companies covering several Upstate counties, and national sales organisations that sell door to door and subcontract the installation.
Each can do good work; what differs is who you call in year eight when an inverter fails. Who actually installs your solar.
How should a Greenville installer size and price your system?
Sizing in Greenville starts with your Duke interval data, not your annual kWh.
Under Rider RSC a kilowatt-hour your roof exports at midday cancels an off-peak kilowatt-hour you import later the same month at 12.8191¢; anything beyond your off-peak use falls to 4.19¢.
A careful installer sizes close to that off-peak demand, shows the on-peak (6–9 p.m.) gap a battery might cover, and stays under the rider’s 20 kW AC limit.
Pricing is usually quoted as a total contract price and a price per watt. We do not publish a Greenville per-watt figure because we have not collected twelve sourced, dated local quotes; compare proposals against each other with the proposal analyzer and see Greenville solar cost for the fees we can source.
Which South Carolina licences should a Greenville installer hold?
South Carolina divides a rooftop solar job across licences. Ask which covers each part, then look each one up at SC LLR yourself.
"Solar Panel Installer" is a Residential Specialty registration with the Residential Builders Commission (SC LLR): fabricating, assembling, installing and replacing panels and related components.
Roof mounting: a Residential Builder, a Residential Specialty Contractor with the Roofer classification, or a General Contractor with a roofing classification.
Wiring and connection: a Residential Builder, a licensed residential electrician, or a mechanical contractor with the electrical classification.
Structural roof upgrades: a Residential Builder, a Residential Specialty Contractor with the Carpenter classification, or a General Contractor with building or structural framing.
Ask for general liability and workers’ compensation certificates naming the company that will be on your roof, not only the sales company.
What will a Greenville installer handle for you?
A full-service installer files the Duke interconnection application under Rider RSC, applies for the City of Greenville building permit through the City’s online E-Forms portal, and, for houses in a preservation overlay or the C-4 district, obtains the Certificate of Appropriateness that must come before the building permit.
Ground-mounted arrays bring zoning in: the City’s Applicant’s Guide to Solar Panels treats small ground mounts as an accessory use and large ones as a utility use.
The installer also has to pass the City’s inspection.
The City’s Solar Panel Inspection Checklist says small rooftop systems typically need one visit and lists what the inspector looks for: module model numbers matching the approved plans, grounding, labelled conduit, the backfeed breaker, rapid-shutdown and NEC 705.10 directory labels, and attic access to see the attachments to the rafters.
Ask how often the installer’s Greenville jobs pass first time. Step-by-step detail: solar panel installation in Greenville.
Greenville quote-comparison checklist
Lay two or three proposals side by side and tick each line. A missing line is a question for the seller.
AC must be 20 kW or less for Rider RSC.
The City inspector checks model numbers against the plans, so they should be fixed in the contract.
Annual kWh alone cannot show what Duke will credit at retail versus 4.19¢.
Including the non-bypassable charge per kW DC as its own line.
Dealer fees often hide in the system price. Dealer fee calculator.
Who files, who pays the City fees.
Relevant on a 1980s roof.
Panel product and performance, inverter, and the installer’s workmanship warranty with its length.
The 25% SC credit only applies to a system you own; a lease cannot pass it to you.
What warranties and equipment should Greenville buyers expect?
Three warranties matter: the panel manufacturer’s product and performance warranty, the inverter warranty (microinverters and string inverters differ), and the installer’s workmanship warranty covering roof penetrations and wiring.
The last is the one tied to the company’s survival. With 84 hail reports in Greenville County from 2015 to 2025 in NOAA’s Storm Events Database, eight of them two inches or larger, ask whether the panels carry a hail rating and how storm damage is handled under your homeowner’s policy.
Workmanship warranties and inverter types.
On batteries and loans, ask the installer to price each separately so you can compare them; battery storage in Greenville and Greenville solar financing cover both.
Which red flags should a Greenville homeowner watch for?
Under Rider RSC only off-peak surplus left at month end is credited, at 4.19¢.
The IRS says §25D is not available for property placed in service after 31 December 2025.
Selling you power from panels on your own roof is not a legal arrangement in South Carolina; only owned systems and certified leases are.
You may cancel a home-solicitation sale until midnight of the third business day after signing, by written notice (SC Code §37-2-502).
The City issues no building permit in a preservation overlay or C-4 until the Certificate of Appropriateness is granted; a seller who has not mentioned it has not checked your address.
Questions
How do I find a good solar installer in Greenville, SC?
Does a Greenville solar installer need a licence?
Who applies for the City of Greenville solar permit?
How many inspections does a Greenville rooftop system need?
Should a Greenville quote include battery storage?
Can I cancel a solar contract signed at my door in Greenville?
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Have your proposals and a year of Duke usage to hand; we will help you read them against Greenville’s rules.