ColumbiaSolar Incentives 2026: Rebates, Tax Credits & Net Metering
Columbia homeowners stack the 30% federal tax credit with the 25% South Carolina state credit and Dominion Energy SC net metering. At 5.2 peak sun hours a day, a home with a $150/month bill (about 1,071 kWh) needs roughly a 8.6 kW system — 22 panels — and pays back in about 6.9 years.
Solar Incentives Available in Columbia
Solar incentives in Columbia come in three layers. First, every homeowner qualifies for the 30% federal Residential Clean Energy Credit on the full installed cost, claimed on IRS Form 5695. Second, South Carolina adds a 25% state income tax credit (up to $3,500) that stacks on top. Third, Dominion Energy SC sets the local rules for crediting the solar power you export.
Columbia homes stack Dominion net metering with South Carolina's 25% state solar tax credit (up to $35,000 lifetime).
How Much Solar Columbia Homes Produce
Columbia gets 5.2 peak sun hours a day, so each 1 kW of panels produces about 1,518 kWh per year here. A 8.6 kW system — the size that fits a typical $150/month Dominion Energy SC bill — generates roughly 13,058 kWh annually, worth about $1,828 in avoided electricity in year one and more as rates rise.
Dominion Energy SC Net Metering in Columbia
Dominion Energy SC credits excess solar generation from Columbia homes under South Carolina's full retail-rate net metering (~100% of retail). A right-sized system can bring net annual electricity costs close to zero. See full South Carolina net metering rules →
How Much Do Solar Panels Cost in Columbia?
At South Carolina's 2026 average of $2.85/watt, the 8.6 kW system most Columbia homes need runs about $24,510 before incentives. The 30% federal credit takes off $7,353, and the South Carolina state credit another $3,500 — landing the net cost near $13,657, with payback around 6.9 years.
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See your exact Columbia solar savings
Enter your Dominion Energy SC bill and we'll apply every South Carolina and federal incentive to your real numbers — system size, net cost, payback, and 25-year savings.