Duke Energy Ohio rate hike could push Cincinnati summer bills higher

By AI, Created 6:50 PM UTC, May 20, 2026, /AGP/ – Duke Energy Ohio’s Standard Service Offer rate changes June 1, and some Cincinnati households could see summer electric bills near $188 or more. The increase follows higher PJM auction prices and could leave many customers paying more unless they shop for a fixed-rate supplier.

Why it matters: - Duke Energy Ohio customers on the Standard Service Offer are facing a higher default electric rate starting June 1. - Summer cooling demand could push some Cincinnati household bills above $200. - The new rate may add pressure for families already dealing with higher food and fuel costs.

What happened: - OHEnergyRatings.com says Duke Energy Ohio’s Standard Service Offer rate changes on June 1. - The residential price for that default service rises from 9.94 cents per kWh to 10.167 cents per kWh. - The new rate runs through May 31, 2027. - OHEnergyRatings.com estimates some Cincinnati customers could see summer monthly bills near $188 if weather matches a similar 2025 heat pattern.

The details: - PJM Interconnection, which manages the electric grid and wholesale power market for 13 states including Ohio, helped drive the increase through higher auction prices. - PJM uses annual auctions to secure enough generation for high-demand periods. - The 2026 auction price finished 22% above the 2024 auction price of $269.92 per megawatt day. - PJM capped the 2026 auction rate at $329.17, even though it could have climbed above $500 per megawatt day. - Analysts linked higher summer bills to air conditioning use during hot afternoons and humid nights. - In 2025, nearly 20 days of hot afternoon temperatures and humid nights helped make July the hottest month of the year in much of Ohio. - Average household electricity use reached 1,230 kWh for the month during that stretch. - Some households could still end up paying well above $200 a month under similar conditions this summer. - The full report is available from OHEnergyRatings.com.

Between the lines: - The rate increase reflects broader strain on the regional power market, not just local utility pricing. - Retiring fossil fuel plants, delayed interconnection for new energy projects and growing data center demand are all tightening supply. - Fixed-rate retail plans may offer lower prices than Duke Energy Ohio’s updated Standard Service Offer. - The push to shop now is aimed at customers before the June 1 rate change takes effect.

What’s next: - Duke Energy Ohio’s updated Standard Service Offer rate takes effect June 1. - Customers who want to avoid the new default rate can compare electricity suppliers and lock in fixed pricing before the change. - Future summer bills will depend on weather, household usage and whether customers stay on the utility rate or switch suppliers.

The bottom line: - Cincinnati households on Duke Energy Ohio’s default rate could pay more this summer unless they act before June 1.