☀️ Solar panels in Charleston, SC: cost & savings (2026)
Cost after tax credit: $16,800 · Payback: 9.9 years · Est. savings: $1,696/year.
With about 155,369 residents, Charleston is a mid-size city and the largest city in South Carolina. Homes here pay South Carolina's residential rate of 14¢/kWh (about $151/month), so a typical 8 kW solar system — roughly $16,800 after the 30% federal tax credit — saves close to $1,696/year and pays back in about 9.9 years. That makes solar usually worth it in Charleston. Below, compare nearby South Carolina cities and get real quotes.
Is solar worth it in Charleston?
Solar pays off fastest where power is expensive and the sun is strong. In Charleston, electricity runs about 14¢/kWh and South sunlight gives a production factor of 1.10×. A standard system offsetting most of a $151/month bill returns roughly $1,696/year and pays for itself in about 9.9 years.
Your real result depends on roof, shading, exact usage and installer pricing. Always compare a couple of real Charleston quotes before signing.
See Charleston electricity rates → · All South Carolina solar →
Charleston solar FAQ
How much do solar panels cost in Charleston, SC?
A typical 8 kW home system is around $24,000 before incentives, or about $16,800 after the 30% federal tax credit in Charleston. Local utility or South Carolina incentives can lower it further.
Is solar worth it in Charleston?
In Charleston it's usually worth it: with South Carolina electricity at 14¢/kWh and South sunlight, a system saves roughly $1,696/year and pays for itself in about 9.9 years, then produces largely free power for the rest of its 25+ year life.
How much can I save with solar in Charleston?
About $1,696 per year and roughly $25,600 over 25 years after the system pays for itself. Exact savings depend on your roof, shading and usage.
How do I get cheap solar in Charleston?
Get at least three quotes from installers active in Charleston, claim the 30% federal tax credit, stack any South Carolina or utility rebates, and avoid oversizing the system beyond your $151/month usage.