South Carolina solar leads

Charleston’s solar resource

Charleston has the most residents of any South Carolina city in the Census Bureau’s July 1, 2025 estimates. The PVWatts calculator, which NREL developed and the National Laboratory of the Rockies now runs, puts the solar resource there at 5.30 kWh per square meter per day (checked October 9, 2026).

How it was calculated: PVWatts version 8 with its default array, fixed on an open rack, facing south and tilted 20 degrees, at Charleston’s Census gazetteer coordinates and with typical-year weather from the National Solar Radiation Database. The Upstate, other roof pitches and shade all change the result, so it serves to compare places and is not a forecast for one home.

Net metering and solar choice metering in South Carolina

South Carolina’s customer solar rules are in chapter 40 of title 58 of the Code of Laws (checked October 9, 2026). Section 58-40-10 defines a customer-generator as the owner, operator or lessee of a renewable generating unit, including storage charged only from on-site renewables, that is meant mainly to offset the customer’s own use. For a residential customer, the system may be no larger than 20 kW AC; nonresidential limits are higher. Electrical utilities with fewer than 100,000 customer accounts are exempt from the chapter.

Section 58-40-20, rewritten by Act 62 of 2019, directed the Public Service Commission to set a solar choice metering tariff for applications received after May 31, 2021, with a method that compensates customer-generators for the benefits their generation provides and that removes cost shifting to other customers as far as practicable. The commission also sets a minimum number of years a solar choice customer is entitled to its terms, and the value of customer-generated energy is updated each year.

Customers who applied for net metering after Act 62 took effect on May 16, 2019 and before June 1, 2021 may keep the terms of Commission Order No. 2015-194 until May 31, 2029. For a buyer, the application date therefore separates South Carolina solar homes into groups on different billing terms.

South Carolina’s solar income tax credit

S.C. Code 12-6-3587 allows a credit against state income tax for the purchase and installation of a solar energy system on a facility in South Carolina that the taxpayer owns. As of October 9, 2026, subsection (A) sets the credit at 25% of those costs, limited in any year to $3,500 per facility or 50% of the taxpayer’s tax liability for the year, whichever is less, with any amount above the yearly limit carried forward for up to ten years. The credit may not be claimed before the installation is complete.

Subsection (B) requires the system to be certified for performance by the Solar Rating and Certification Corporation or a comparable entity endorsed by the State Energy Office, and excludes land and structural parts of the building such as roofs. Whether a homeowner qualifies is a question for a tax professional.

South Carolina counties by owner-occupied detached homes

Ranked by owner-occupied single-family detached homes, the ten largest South Carolina counties are below, with owner-occupied homes and the detached share for each (ACS 5-year 2020-2024, table B25032, county level). The table covers housing and does not show where leads come from.

Horry County, on the Grand Strand, has the second most owner homes in the list but the lowest detached share, 72.4%, while Richland County around Columbia is highest at 90.7% in the 2020-2024 ACS county data.

Filters for South Carolina solar buyers

Solar buyers generally filterFilterA rule that decides which leads a buyer is offered, based on fields such as vertical, sub-type, state, ZIP code, homeownership or accident details. Glossary on four fields per request. In South Carolina, each one links to the facts above:

• Homeowner status: owners sign the contract and the metering application; see the owner-occupied detached homes above.
• Project type: the type of solar project the homeowner described, in broad terms; the exact options are set when the solar form is finalized.
• Timeframe: whether the homeowner wants to install soon or is still looking into it.
• ZIP code: the ZIP codes an installer covers, using the county table to see where detached houses are most common.

The filters for South Carolina solar leads are agreed with each buyer during onboarding. Exclusive or shared routing for solar leads is agreed with each buyer during onboarding. The sample solar lead lists the fields in a request.

Request South Carolina solar leads

Email us the South Carolina ZIP codes you cover, your daily volume or caps and how you take delivery. ReturnReturnA buyer's request for credit on a lead that fails agreed standards, such as a disconnected number, a duplicate or a lead outside the filters. Glossary terms are agreed on the onboarding call, before you go live.