What an electric water heater costs to run in Ohio
Ohio homes use 2,849 kWh a year on an electric water heater. Priced on top of the rest of the bill, that costs $200.75 to $281.04 a year across 3 published Ohio plans — a $80.29 gap. Checked September 2, 2026.
Every priced plan, average
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential✓ cheapesttime-of-use · tiered | $200.75 | — | 7.0¢ |
| Residential (KW11)flat rate | $238.56 | +$37.81 | 9.6¢ |
| Residential (KW10)flat rate | $281.04 | +$80.29 | 11.1¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- Lighter use — cheapest $103.30 (Residential), dearest $144.60, a $41.30 spread
- Average — cheapest $200.75 (Residential), dearest $281.04, a $80.29 spread
- Heavier use — cheapest $266.91 (Residential), dearest $373.68, a $106.77 spread
What an electric water heater costs here
Across 3 plans priced in Ohio, an electric water heater adds $200.75 to $281.04 a year — $16.73 to $23.42 a month. The median plan puts an electric water heater at $238.56 a year.
Cheapest for an electric water heater: Residential, City of Cleveland, Ohio (Utility Company). Dearest: Residential (KW10), City of Columbus, Ohio (Utility Company).
Those 2,849 kWh are billed at 7.0¢–9.9¢, against a 9.6¢ whole-bill average on the median plan: they land in the last tier the household reaches, so the average rate understates them by up to 0.2¢ per kWh.
What Ohio homes use
EIA's 2020 residential survey found 2,849 kWh a year across 125 sampled homes that run one, near the national 2,706 kWh. The middle half spans 1,466 kWh to 3,788 kWh, so an electric water heater varies by 2,322 kWh between one household and another.
Electricity used to heat water for washing, bathing and appliances. That average covers homes with an electric water heater — 38% of homes here, against 47% nationally.
That makes an electric water heater about 28% of the electricity an Ohio home uses. The remaining 7,429 kWh is what an electric water heater is billed on top of, and on a tiered or time-of-use plan that is what sets the rate it meets.
By provider
On each Ohio provider's cheapest plan: City of Cleveland, Ohio (Utility Company), $200.75; City of Columbus, Ohio (Utility Company), $238.56.
City of Columbus, Ohio (Utility Company) charges $37.81 a year more than City of Cleveland, Ohio (Utility Company) on Residential for the same 2,849 kWh.
Light and heavy use of an electric water heater
A household in the lighter quarter runs an electric water heater for 1,466 kWh a year and pays $103.30 on the cheapest plan. One in the heavier quarter runs it for 3,788 kWh and pays $266.91 — $163.61 more for an electric water heater on the same tariff.
Limits
A 2020 survey average for Ohio, not a measurement of any one home, priced against the 3 Ohio tariffs WattClear has ingested — not every plan sold there.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 41.4993, -81.6944.