Solar Quotes in Charleston, SC

If Dominion Energy South Carolina is your utility

• Dominion Energy South Carolina's Solar Choice rider works with Residential Rate 5 (time-of-use). If your generation exceeds what the utility supplies in a billing month, you're credited for the excess kWh, with energy charges and credits based on Rate 5. Source: https://www.dominionenergy.com/-/media/content/rates-and-tariffs/pdfs/south-carolina/electric/riders/rider-to-residential-rate5-solar-choice.pdf (accessed 2026-10-20)
• Dominion Energy South Carolina's Solar Choice rider for Residential Rate 5 (time-of-use) nets excess on-peak, off-peak and super off-peak generation against usage in the same period in later months. During November billing cycles, leftover excess is paid at the company's avoided cost. Source: https://www.dominionenergy.com/-/media/content/rates-and-tariffs/pdfs/south-carolina/electric/riders/rider-to-residential-rate5-solar-choice.pdf (accessed 2026-10-20)
• Dominion Energy South Carolina's residential solar comparison chart lists a $100 interconnection application fee for rooftop Solar Choice. Source: https://www.dominionenergy.com/-/media/pdfs/save-energy/desc-solar-residential-comparison-chart.pdf (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. Does your estimate use Rate 5 time-of-use pricing?
2. Is the interconnection application fee included?

Get one quote from one installer

Request a free quote. SolarMatchup sends your request to exactly one local installer and never resells it. We don't guarantee savings or incentive eligibility. Results depend on your home, usage, rates and financing.

Get my free quote