Duke Energy SC serves customers in South Carolina. This guide covers current rates, billing structure, common charges, and how to verify your bill is accurate.
Quick Facts
Service Area: Upstate South Carolina, including Greenville, Spartanburg, and Anderson counties.
Rate Range: 11¢–15¢/kWh
Standard Rate: ~13.3¢/kWh (Residential Service (RS))
Duke Energy SC residential rates range from 11¢–15¢/kWh depending on your rate plan. The standard Residential Service (RS) plan has an effective rate of ~13.3¢/kWh. Time-of-use customers on the Residential Service, Time-of-Use (RT) plan pay 8.8¢/kWh off-peak and 19.6¢/kWh during peak hours. Rates last updated February 2026.
Understanding Your Bill
Your Duke Energy SC bill includes several components: base charges, energy charges, fuel adjustments, taxes, and fees.
Duke Energy SC residential rates vary by rate plan, usage tier, and season. Your effective rate includes base charges, energy charges, fuel adjustments, and various fees. Use our free Sanity Check tool to see how your rate compares to other Duke Energy SC customers.
Why is my Duke Energy SC bill so high?
High Duke Energy SC bills are often caused by seasonal usage changes (especially AC in summer or heating in winter), rate increases, estimated meter readings, or being on a suboptimal rate plan. Upload your bill to Utility Check for an independent verification of every line item.
How can I verify my Duke Energy SC bill is correct?
Upload your Duke Energy SC bill to Utility Check for independent, line-by-line verification. We recalculate your charges against Duke Energy SC's published tariffs, check your rate plan, and flag any discrepancies. If everything checks out, you get confirmation and peace of mind.
Does Utility Check support Duke Energy SC?
Yes. Utility Check fully supports Duke Energy SC bill verification. We analyze your rate plan, verify billing math, check fuel adjustments, and compare your effective rate to published tariffs. Our service covers all major utilities across all 50 states.