Duke Energy Ohio Cost Per kWh: 2026 Rates Explained

Picture a Dayton homeowner flipping through a stack of summer bills and pausing on the electricity statement. The kilowatt-hour charge looks reasonable on the surface, but the line labeled "Price to Compare" is the one that actually matters. That figure is Duke Energy Ohio's default supply rate, and as of July 2026 it sits at roughly 10.1 cents per kWh.

The Price to Compare is set by Duke Energy Ohio and reviewed by the Public Utilities Commission of Ohio (PUCO). It represents the Standard Service Offer (SSO), the rate you pay automatically if you have never switched to a competitive electricity supplier. It is not fixed forever. PUCO proceedings can adjust it, and it does not include delivery charges, which are separate and unavoidable regardless of who supplies your electricity.

The supply charge covers the generation and wholesale procurement of the electricity itself. Think of it as the cost of the electrons before they travel across any wires.

Your total bill is higher than 10.1 cents per kWh because Duke Energy Ohio also charges for distribution (maintaining local lines and transformers), transmission (moving power across the regional grid), and various riders and fees approved by PUCO. Those charges are the same whether you stay on the Standard Service Offer or switch to a competitive supplier. The only piece a third-party supplier can change is the supply rate, which is exactly the piece benchmarked by the Price to Compare.

Ohio has six major electric utilities, and their default supply rates vary more than most customers realize. As of July 2026:

Ohio Edison ~9.3 cents/kWh
AES Ohio ~9.4 cents/kWh
The Illuminating Company ~9.5 cents/kWh
Toledo Edison ~9.7 cents/kWh
Duke Energy Ohio ~10.1 cents/kWh
AEP Ohio ~10.7 cents/kWh

Duke Energy Ohio is the second-highest among the six. A household using 1,000 kWh per month on Duke's default supply pays roughly $8 more on supply alone than the same household on Ohio Edison's territory. Over a year that gap reaches close to $100, not a trivial difference on a fixed income.

For a full breakdown of every Ohio utility's current rate, see the Ohio electricity rates page at ElectricRates.org.

Ohio deregulated its electricity market, which means Duke Energy Ohio customers are not locked into the Standard Service Offer. Licensed competitive retail electric suppliers (CRES providers) can offer supply contracts at rates they set themselves, and PUCO certifies them.

As of July 2026, the lowest competitive supplier rate available in Ohio is approximately 7.6 cents per kWh, though that floor varies by utility territory and product type. For a Duke customer currently at 10.1 cents, the gap between the default rate and a competitive offer is substantial. At 1,000 kWh per month, the difference between 10.1 and 7.6 cents is $25 per month, or $300 per year.

Not every offer in the market matches that low figure. Fixed-rate contracts, variable-rate plans, and green-energy products all carry different price structures, and introductory rates can adjust after the promotional period ends. Reading the contract terms matters as much as the headline rate.

The state-run comparison tool is Energy Choice Ohio, sometimes called the "Apples to Apples" chart. The PUCO maintains it at energychoice.ohio.gov. You filter by utility (Duke Energy Ohio), product type (residential), and fuel type, then see every certified supplier's current offer side by side.

Before you shop, pull out your most recent Duke Energy bill and find two things: your average monthly usage in kWh and the current Price to Compare. Those two data points let you calculate your potential savings against any offer you find.

A few practical notes:
- Fixed-rate contracts lock your supply rate for a set term, often 12 or 24 months, and protect against rate increases during that window.
- Variable-rate contracts can float month to month, which cuts both ways.
- Early termination fees vary by supplier. Read the contract before signing.
- Switching does not change your utility. Duke Energy Ohio still delivers your electricity, handles outages, and sends your bill.

If the bill is unmanageable before any rate-shopping conversation happens, Ohio has income-based programs worth knowing. The Percentage of Income Payment Plan (PIPP Plus) is administered statewide through the Ohio Development Services Agency and caps electric payments as a percentage of household income. The Home Energy Assistance Program (HEAP) provides one-time credits toward utility bills for qualifying households.

Eligibility thresholds and benefit amounts change periodically. Contact the Ohio Energy Assistance hotline or your local community action agency for current figures. Duke Energy Ohio also has its own payment-assistance programs; details appear on the Duke website or through PUCO's consumer assistance line.

These programs are separate from competitive supplier switching. A household can use PIPP Plus and still switch suppliers if a certified CRES provider accepts PIPP customers, something worth confirming directly with any supplier before enrolling.

Switching is not automatically the right move for every customer. A few situations where sticking with the Standard Service Offer is reasonable:

Short-term renters. If you expect to move within a few months, a 12-month supply contract could trigger an early termination fee that wipes out any savings.

Customers who have been burned before. Variable-rate contracts from competitive suppliers can spike in winter. If price predictability matters more than chasing the lowest number, Duke's SSO at least changes on a known regulatory schedule.

Low usage households. The dollar savings on supply shrink in proportion to usage. A household using 400 kWh per month saves far less than the headline per-kWh difference suggests.

The right question is not "should I always switch" but "does this specific offer, at my actual usage level, beat the Price to Compare after accounting for contract terms?"

The Public Utilities Commission of Ohio oversees Duke Energy Ohio's electric distribution service and approves the mechanics by which the Standard Service Offer is priced. Duke procures electricity through competitive auctions, and the blended cost of those purchases, plus approved costs and riders, produces the Price to Compare that appears on bills.

PUCO proceedings are public. Customers, advocacy groups, and the Office of the Ohio Consumers' Counsel can all participate in rate cases. This regulatory structure is why the default rate changes on a schedule rather than arbitrarily, and why the Price to Compare is a reliable benchmark rather than a marketing figure.

For live updates on Duke Energy Ohio's current rate or any pending PUCO proceedings that might affect it, check the Ohio page at ElectricRates.org, where rates are updated as changes take effect.

Duke Energy Ohio's default supply rate of roughly 10.1 cents per kWh as of July 2026 is the starting point, not the ceiling. Ohio's deregulated market gives every Duke customer the legal right to shop for a lower supply rate through a certified competitive supplier, with Energy Choice Ohio serving as the state-maintained comparison tool.

The math is simple: find your monthly kWh usage on your bill, compare the Price to Compare to available supplier offers, and factor in contract length and any fees. For many Duke Energy Ohio customers, the supply portion of the bill is the one piece that can actually be negotiated down without changing a single wire, meter, or service relationship.