What Does a Public Utility Commission Do? Ohio Guide 2026

A Columbus homeowner opens her August electric bill and sees two separate line items: one for delivery, one for supply. She wonders why she's paying what her utility set and whether anyone is watching to make sure that number is fair. The answer is yes, and the watchdog has a specific name: the Public Utilities Commission of Ohio, or PUCO.

Most Ohioans interact with their utility every month but rarely think about the agency sitting behind it. That agency, though, shapes nearly every dollar on that bill. Understanding what a public utility commission does is the first step toward knowing when you're overpaying and what you can do about it.

A public utility commission is a state regulatory body that oversees companies providing essential services, most commonly electricity, natural gas, water, and telecommunications. Because utilities often operate as regional monopolies on the delivery side, a government body has to stand in where market competition cannot.

In Ohio, that body is the Public Utilities Commission of Ohio (PUCO), created by state statute and headquartered in Columbus. It is led by five commissioners appointed by the governor and confirmed by the Ohio Senate. PUCO has authority over the state's major investor-owned electric utilities: AEP Ohio, Duke Energy Ohio, AES Ohio, Ohio Edison, Toledo Edison, and The Illuminating Company.

Public utility commissions exist in every U.S. state, though their specific powers and structures vary. What they share is a core mandate: protect consumers from monopoly pricing while ensuring reliable service.

PUCO's responsibilities fall into several broad categories, each of which touches Ohio ratepayers directly.

Rate Setting and Approval
Utilities cannot simply raise rates whenever they choose. They must file a rate case with PUCO, submit detailed cost justifications, and survive a public review process that can take months. PUCO commissioners weigh the evidence, hear testimony from consumer advocates, and issue an order. The rate that results is what appears on your bill as the distribution charge and, for customers who have not switched suppliers, the supply charge.

Service Standards
PUCO sets rules about how quickly a utility must restore power after an outage, how it must handle disconnections, and what protections apply to low-income customers. Ohio's Percentage of Income Payment Plan (PIPP), which caps electricity costs for qualifying households, operates under PUCO's oversight.

Complaint Resolution
When a customer disputes a bill or believes a utility acted improperly, PUCO operates an informal complaint process and, for more serious disputes, a formal hearing process. Filing a complaint with PUCO is often the fastest path to resolution when a utility's own customer service has not helped.

Competitive Market Oversight
Ohio deregulated electricity supply in the late 1990s. PUCO now oversees a competitive supplier market alongside the traditional utility structure. It licenses competitive retail electric suppliers (CRES providers), sets disclosure requirements, and monitors the market for deceptive practices.

Infrastructure Review
Major construction projects, like new high-voltage transmission lines, require a certificate from the Ohio Power Siting Board — a separate board chaired by the PUCO chairman and staffed by PUCO — before breaking ground. This ensures costs passed to ratepayers are justified and that environmental and community concerns get a hearing.

One of PUCO's most consumer-friendly requirements is straightforward: every Ohio utility bill must list a Price to Compare. This number, expressed in cents per kilowatt-hour, represents the utility's default supply rate, formally called the Standard Service Offer (SSO). It is the benchmark you use when evaluating whether a competitive supplier offers a better deal.

As of August 2026, those default supply rates look like this across Ohio's major utilities:

The Illuminating Company: ~11.2 cents/kWh
Toledo Edison: ~11.1 cents/kWh
AEP Ohio: ~11.0 cents/kWh
Ohio Edison: ~10.9 cents/kWh
AES Ohio: ~10.9 cents/kWh
Duke Energy Ohio: ~10.1 cents/kWh

The lowest competitive supplier rate available in the state sits around 7.9 cents/kWh as of August 2026, though availability varies by utility territory. That gap between default and competitive pricing is exactly the kind of information PUCO's framework is designed to put in front of consumers. For current rates in your area, see the Ohio electricity comparison page at ElectricRates.org.

PUCO created and maintains Energy Choice Ohio, sometimes called the Apples to Apples comparison tool. The site lists licensed competitive suppliers, their current rates, contract terms, and any fees, all in a standardized format that makes side-by-side comparison possible.

The name matters: Apples to Apples is designed to prevent the kind of offer confusion where a supplier buries a cancellation fee or an introductory teaser rate that jumps after three months. PUCO requires suppliers to disclose these terms in a uniform disclosure document before you sign anything.

If a supplier approaches you at the door or by phone, PUCO rules give you a rescission period of seven calendar days after your electric utility sends its confirmation notice, to cancel without penalty. That consumer protection exists specifically because PUCO has the authority to require it.

If a utility overbills you, denies a promised credit, or a competitive supplier charges something that was not disclosed, PUCO's consumer complaint process is where to start. The informal process is faster and handles the majority of disputes. You can reach PUCO's consumer hotline or submit a complaint through their official website at puco.ohio.gov.

For disputes that cannot be resolved informally, PUCO offers a formal complaint proceeding with rules of evidence and a written decision. Most residential billing disputes resolve at the informal stage.

A few things to have ready before you call or file:
- Your account number and at least two recent bills
- A clear written summary of the issue and what resolution you are seeking
- Any correspondence you have already had with the utility or supplier

PUCO staff will contact the utility or supplier on your behalf and typically issue a response within a few weeks.

Understanding a public utility commission's limits is just as useful as knowing its powers. PUCO regulates investor-owned utilities. It does not regulate electric cooperatives or municipal utilities, which have their own governing boards. If you live in an area served by a co-op or a city-owned utility, your rate-setting process is different and your complaint options may differ as well.

PUCO also does not set wholesale electricity prices. Those are governed by federal rules administered by the Federal Energy Regulatory Commission (FERC) and managed regionally by PJM Interconnection, the grid operator covering most of Ohio. When wholesale costs spike, PUCO-regulated utilities may file for emergency rate adjustments, but the underlying market prices are outside PUCO's direct control.

Federal assistance programs like HEAP (Home Energy Assistance Program) operate through the Ohio Department of Development under federal Low Income Home Energy Assistance Act (LIHEAA) funding. PUCO coordinates with these programs but does not administer them directly. For eligibility details, contact the Ohio Department of Development or visit their official site.

Knowing what PUCO does translates into a simple action checklist for Ohio residents.

Step 1: Find your Price to Compare. Pull out a recent bill and locate the Price to Compare figure. That is your baseline. The rates listed above are a useful reference, but your specific rate may differ based on billing period and any approved adjustments.

Step 2: Check Energy Choice Ohio. Visit the Apples to Apples comparison tool at energychoice.ohio.gov to see licensed competitive suppliers in your territory. Filter by fixed-rate offers if you want price certainty over the contract period.

Step 3: Read the disclosure document. Before enrolling, PUCO requires suppliers to provide a uniform disclosure document. Read it. Confirm the rate, the contract length, any cancellation fees, and what happens when the introductory period ends.

Step 4: Compare total costs, not just the supply rate. Your bill has delivery charges that stay with the utility regardless of which supplier you choose. The supply rate is the only component that changes when you switch.

Step 5: Track your contract. Set a calendar reminder for 60 days before your contract ends. Suppliers can renew you at a different rate unless you take action. Check ElectricRates.org or the Ohio comparison page again before that date.

The framework PUCO built, from the Price to Compare requirement to the Apples to Apples tool to the rescission rights, exists precisely so that this process is accessible to every Ohio ratepayer, not just those who already know how deregulation works.

A public utility commission does not exist in the background of your life by accident. It sets the rates you pay, enforces the rules suppliers must follow, and builds the tools you need to shop more effectively. In Ohio, PUCO has created one of the more consumer-forward regulatory frameworks in the country, including a public comparison tool, mandatory bill disclosures, and a formal complaint process that actually resolves disputes.

The gap between the highest default supply rate in the state (around 11.2 cents per kWh for Illuminating Company customers as of August 2026) and the lowest competitive supplier rate in the state (around 7.9 cents per kWh) is real money on a real bill. PUCO's infrastructure is what makes that choice visible and safe to act on. Use it.