How much do solar panels cost in South Carolina?

In South Carolina, solar panel installation averages about $2.5 per watt. For a typical $150 monthly electric bill, a 7 kW system (18 panels) costs approximately $18,000 before incentives, or $12,600 after the 30% federal tax credit.

Is solar worth it in South Carolina?

Yes — with 5.33 peak sun hours per day and 17.1¢/kWh electricity rates, solar in South Carolina typically pays for itself in 6.8 years. The rating is Strong.

Solar Panel Cost & Savings in South Carolina (2026)

Quick South Carolina Solar Facts

5.33

Peak Sun Hours/Day

17.1¢

Electricity Rate

$2.5

Install Cost/Watt

6.8 yrs

Avg Payback

In South Carolina, a typical 7 kW system (18 panels) costs approximately $12,600 after the 30% federal tax credit. With 5.33 peak sun hours per day and 17.1¢/kWh electricity rates, annual savings average $1,840 with a payback period of 6.8 years. Rating: Strong. Source: NREL PVWatts v8 (PSH), US EIA July 2026 (rates), SEIA/EnergySage Q1 2026 (costs).

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How many solar panels do I need in South Carolina?

For a typical home with a $150 monthly electric bill in South Carolina, you need about 18 panels (7.2 kW system). Your exact number depends on your specific monthly usage and roof orientation.

What solar incentives are available in South Carolina?

Every US homeowner qualifies for the 30% federal Investment Tax Credit (ITC) through 2032. Many states also offer additional incentives — check our main calculator's Incentives tab for South Carolina-specific rebates, tax credits, and net metering policies.

Is South Carolina a good state for solar?

South Carolina has 5.33 peak sun hours per day (U.S. average: 4.98). With electricity at 17.1¢/kWh (U.S. average: 18.83¢/kWh), solar in South Carolina typically pays for itself in 6.8 years. Overall rating: Strong.