Ohio · Updated August 28, 2026

Why is my AEP Ohio bill so high?

Verified August 28, 2026. Source: Ohio Power Company tariff P.U.C.O. No. 21, Schedule GS-1 and the Basic Transmission Cost, Generation Energy and Generation Capacity Riders. Reviewed at the start of each month.

The short version

Two different things went up, and only one of them is something you can act on.

The April 2026 increase that made the news was a transmission charge, which sits on the delivery half. No supplier can lower it. But the generation half is open to competition, and that is where the gap is.

Why the rate you read in the news isn't yours

Most utilities publish a single Price to Compare. AEP Ohio splits generation across two riders, so the widely quoted figure is a residential number that no business pays. On Schedule GS-1, the small commercial tariff, the arithmetic looks like this.

The capacity rider is the larger half of the increase, and it is set by PJM's annual capacity auctions rather than by AEP. Regional capacity prices rose from $28.92 to $329.17 per MW-day in two years, driven largely by data center load growth — which is how a grid-wide problem reaches a business whose own usage never changed.

What that gap costs a small business

These cover the generation portion only, using the lowest advertised competitive rate. Your actual offer depends on your usage pattern and contract length.

The April increase, and why it isn't shoppable

The Basic Transmission Cost Rider recovers the cost of high-voltage infrastructure. It rose effective the first billing cycle of April 2026, and the tariff sets a different rate for each customer class — a detail worth seeing, because it runs opposite to what most people assume.

A small business on GS-1 pays a lower transmission rate per kWh than a house does. But cross onto a demand-metered schedule and the structure inverts completely: the per-kWh charge nearly disappears and you pay $10.28 for every kilowatt of peak demand instead. At that point cutting total consumption barely helps — flattening your peak is what moves the bill.

Which schedule are you on?

GS-1 is defined in the tariff as General Service — Non-Demand Metered, available to secondary customers with maximum demands under 10 kW. Above that, you move to a demand-metered schedule and the shape of your bill changes.

If your bill shows a line in kilowatts rather than only kilowatt-hours, you have crossed onto a demand-metered schedule. That is the single most important thing to establish before deciding what to do, because it changes which lever actually works.

Three other reasons your bill jumped

1. You rolled off a fixed contract

Fixed-rate supply contracts expire quietly. When yours does, you usually drop to a variable rate or back to the default — often at a much higher price, with no notice that reads like a warning.

2. A variable-rate supplier repriced you

Introductory rates that beat the utility in month one frequently exceed it by month six. If a supplier name appears on your bill and the rate moves monthly, that is what is happening.

3. Seasonal load

Ohio summers and winters both push HVAC hard. Compare the same month year over year rather than against last month — a July bill against a May bill tells you almost nothing.

When switching is the wrong move

If you are already on a fixed contract below 13.3¢, stay put — early termination fees usually run $50 to $200. If your contract ends within 60 days, wait and switch at renewal. And if the increase you noticed was the April transmission rider, switching suppliers will not touch it, because that charge is on the delivery half of the bill no matter who supplies your power.

How to check your own rate in five minutes

1. 1.Find your rate schedule near the account details — GS-1 means non-demand metered, under 10 kW
2. 2.Find your generation charges — AEP lists energy and capacity separately, so add both to compare against a supplier quote
3. 3.Look for a kW line. If it exists, you are demand metered and peak management matters more than rate shopping
4. 4.Check for a supplier name. If none appears, you have never switched and are on the default

Then compare against current offers on Apples to Apples, the free comparison tool run by the Public Utilities Commission of Ohio. It lists every certified supplier licensed in your territory beside the utility's own rate.

Most private rate-comparison sites are paid by the suppliers they list, so the order you see is often the order of who pays most rather than who is cheapest for your usage. The PUCO tool is the neutral one — it is run by the state regulator and has nothing to sell you.