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Cincinnati electric aggregation in Hamilton County, Ohio
The electric aggregation program for Cincinnati, Ohio, as our registry records it, is City of Cincinnati Electric Aggregation Program. In the registry's September 9, 2026 research, at high confidence, the program lists Dynegy Energy Services as the supplier at a fixed rate of 10.44¢ per kWh. The recorded term is long and may hold more than one rate, so check the dates in the table below.
Updated
Which electric aggregation program covers Cincinnati, Ohio?
Electric aggregation. A community buys electricity supply for its residents as one group, and in an opt-out program households are enrolled unless they opt out.
A city program starts with an ordinance from the legislative authority of the municipal corporation. Voters then approve automatic enrollment at an election (Ohio Revised Code 4928.20). We found no other registry row with this program name, which suggests Cincinnati runs it alone.
High confidence means we read the program, its supplier and its exit-fee note from the program's own publisher. Where the table says "We have not verified this yet", we found no source for that field.
| Field | Registry |
|---|---|
| Program | City of Cincinnati Electric Aggregation Program |
| Supplier | Dynegy Energy Services |
| Rate | 10.44¢ per kWh |
| Rate type | Fixed |
| Term | May 1, 2026 to June 30, 2028 |
| Opt-out window | We have not verified this yet |
| Exit-fee note | No cancellation fee; customers may leave the program at any time (City of Cincinnati OES). |
| Researched | September 9, 2026, high confidence |
The recorded term runs from May 1, 2026 through June 30, 2028. That span is long, and a rate can be fixed for only part of a term, so confirm which dates your rate covers.
How does the Cincinnati program rate sit beside the price to compare?
Price to compare. The utility's default supply rate, the one you pay if you have not chosen a supplier or joined a program.
The program rate on record is 10.44¢ per kWh, a fixed rate. Duke Energy Ohio's price to compare is 10.49¢ per kWh for October 1 – October 31, 2026, according to PUCO's chart. The next period starts November 1, 2026.
Both numbers leave out delivery charges and run for their own dates, so check that the dates match.
Our Duke Energy Ohio electric rates page covers the territory, and PUCO's chart lists the offers. A county-level match may not fit every Cincinnati address, so read the utility name on your bill.
What does it take to opt out of the Cincinnati program?
Ohio law requires a stated way to opt out, with a chance to use it every three years and no switching fee (Ohio Revised Code 4928.20). Your notice sets Cincinnati's own terms.
For Cincinnati, the registry's exit-fee note says “No cancellation fee; customers may leave the program at any time (City of Cincinnati OES)”. That is a snapshot from September 9, 2026, and your notice is the source of record.
For opting out, the registry holds this note: “City opt-out line 513-352-5344; Dynegy customer care 855-326-0520”.
Does signing with a supplier change your Cincinnati enrollment?
PUCO's guidance (PUCO) is that a customer who does not opt out and then picks a new supplier stays in the program, and that keeping a supplier you chose means opting out. Before you sign or return a notice in Cincinnati, ask the program and the supplier how your account will be handled. Read any contract for an early termination fee (ETF).
Staying in the program, or on the utility's default, can be the better choice when every fixed offer on PUCO's chart is above the rate you pay now for the same dates. It can also be better when a supplier's monthly fee or ETF would erase the gap.
Who else in Hamilton County appears in our aggregation registry next to Cincinnati?
Hamilton County has 24 other communities on file. Verified: Green Township. Not yet verified: Anderson Township, Colerain Township, Crosby Township, Deer Park, Delhi Township, Evendale and seventeen more. See the Hamilton County page for every row.
Our ZIP list gives Cincinnati 69 ZIP codes: 45201 through 45999. A ZIP follows mail routes, not borders, so it can reach beyond Cincinnati.
Want the general rules? Read our Ohio electric aggregation guide. Want to test an address? Use the aggregation lookup.
Frequently asked questions
Who supplies the Cincinnati electric aggregation program?
For Cincinnati in Hamilton County, the registry row from September 9, 2026 names Dynegy Energy Services as the supplier of City of Cincinnati Electric Aggregation Program. Programs pick a supplier by bid, and the winner can change at renewal. Your own notice is the surest way to confirm who supplies you today.
Is the Cincinnati aggregation rate fixed or variable?
Our September 9, 2026 research recorded a fixed rate of 10.44¢ per kWh for Cincinnati in Hamilton County, in a term through June 30, 2028. Long terms can carry more than one rate, and the fixed figure may apply to only one stretch. The program can tell you which dates the rate you pay covers.
Can you leave the Cincinnati program without paying a fee?
The registry's note for Cincinnati in Hamilton County, dated September 9, 2026, opens with “No cancellation fee; customers may leave the program at any time”. Treat it as a record of what was noted then, not as a promise. Under Ohio law you get an opt-out chance every three years without a switching fee.
When does the Cincinnati aggregation term end?
For Cincinnati in Hamilton County, the registry row from September 9, 2026 has a term that runs through June 30, 2028. The term is long, so more than one rate may apply during it. Your latest notice should show the dates your current rate covers.
Sources
- City of Cincinnati Office of Environment & Sustainability, read
- Dynegy Energy Services, read
- Opt-out page recorded in our registry for Cincinnati, read
- PUCO Energy Choice Ohio: Duke Energy Ohio Apples to Apples chart, read
- Ohio Revised Code 4928.20 (electric aggregation), read
- Energy Choice Ohio: what is aggregation, read
Ohio Energy Savings compares plans. Suppliers pay us a commission when a household enrolls, and we also charge a service fee; you see the fee terms in your offer. See how we get paid.