Commercial rate guide for Duke — Carolinas (North Carolina and South Carolina), Florida, Indiana, Ohio, and Kentucky. One of the largest U.S. electric utilities by customer count.
OPT (optional power service time-of-use) for large commercial in Carolinas. General service demand (GSD) for medium loads. Florida rates under FPL-comparable structures. Fuel cost adjustment applied monthly.
Rising
7.5% base rate increase in North Carolina effective January 2026 approved by NCU
7.5% base rate increase in North Carolina effective January 2026 approved by NCUC; 5.9% increase in Indiana effective March 2026
Property managers with Duke accounts frequently encounter these billing challenges:
Fuel cost adjustment swings with natural gas prices
Storm cost recovery riders post-hurricane seasons
Demand charges on OPT schedule with coincident peak billing
Renewable energy rider allocations
Grid improvement plan (GIP) surcharges in Indiana
The utility is the sole provider in this service territory.
All Duke Energy service territories are regulated. No competitive supply choice. Vertically integrated utility in all states.
Carbon plan cost recovery filing pending in NC; multi-year rate plan filing in South Carolina pending before SC PSC
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