Solar Quotes in Spartanburg, SC

Your utility's rules

Many homes in the Spartanburg area are served by Duke Energy Carolinas. Confirm which rules apply to your account before you sign.

• In South Carolina, Duke's Residential Solar Choice rider requires Schedule R-STOU and caps systems at 20 kW AC. Excess kWh in each time-of-use period are credited at the rider's export rate, and all renewable energy certificates (RECs) convey to Duke. Source: https://etariff.psc.sc.gov/Uploads/tariffFile/c8e8e7f7-11b2-4602-a23c-5be72f015998 (accessed 2026-10-20)
• South Carolina law (S.C. Code §58-40-20) directed the PSC to set a "solar choice metering tariff" for customer-generators applying after May 31, 2021. Source: https://www.scstatehouse.gov/code/t58c040.php (accessed 2026-10-20)

A note on the federal tax credit

The federal residential clean energy credit (25D) doesn't apply to expenditures made after December 31, 2025. The IRS treats an expenditure as made when installation is completed. Source: https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb (accessed 2026-10-20). This page isn't tax advice.

Questions to ask

1. Which Duke Energy Carolinas net metering or export rule will my system be on, and what is the current credit rate?
2. How did you size the system against my last 12 months of usage, and what export share did you assume?
3. Who files the interconnection application, and how long does permission to operate usually take here?
4. What's included in the price (permits, inspections, monitoring), and what warranties cover panels, inverter and workmanship?

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