Commercial solar in South Carolina (2026)

In South Carolina, the average commercial electricity rate is about 12.13¢/kWh — below the U.S. average of roughly 17.6¢. Because a solar system's payback is driven mostly by the utility rate it offsets, South Carolina's low rates make business solar a longer-term play that hinges on incentives and rising rates in 2026.

South Carolina uses net billing — exports are credited below the retail rate. That lengthens payback versus full net metering and makes pairing solar with a battery (to use more of your own production) materially more attractive.

Businesses use the Section 48E commercial credit (≈30%, up to ~50% with adders) plus first-year bonus depreciation — together typically recovering ~45–55% of project cost. Construction-start timing matters; verify before acting.

For a typical South Carolina business spending about $1,500/month on electricity, our model estimates a 105.99 kW system costing roughly $153,711 after incentives, paying back in about 8.5 years, with on the order of $296,270 in 25-year savings. These are estimates built from South Carolina's real electricity rate — get a quote to confirm your numbers.

Businesses in South Carolina should weigh construction-start timing for the commercial credit and confirm whether the project qualifies for the domestic-content or energy-community adders, which can lift the credit toward 50%.

Estimates only — not tax, financial, or legal advice. Verify all incentives and savings with a qualified professional before acting.