Charleston receives approximately 4.9 peak sun hours per day, making it a good location for solar energy production. With an average monthly electric bill of $145 in Charleston, homeowners could save $1,305/year by switching to solar.
A 9.3kW solar system in Charleston could generate approximately 1,121 kWh/month, offsetting about 95% of the average electric bill.
Charleston residents benefit from South Carolina's solar incentives, including state tax credit (25% up to $3,500) + net metering + federal tax credit (30%). property tax exemption.The 30% Federal Solar Tax Credit (ITC) applies to all installations nationwide, reducing your net system cost by nearly a third.
With 4.9 peak sun hours, a typical 9.3kW residential system in Charleston produces enough energy to offset 95% of the average household's electricity usage. Over the system's 25+ year lifespan, that translates to $32,625 in total savings.
Your utility affects your net metering rate and solar program eligibility.