Data through June 2026
Water Heaters (Electric) · 61 certified models
A. O. Smith
A. O. Smith: 61 ENERGY STAR certified models in this data, running $152 to $303 a year at the U.S. average electricity rate — a median of $235, versus $222 across every certified water heaters (electric).
The 50 most efficient (of 61)
Other brand facets
Questions, answered with the data
- How much does it cost to run A. O. Smith water heaters (electric)?
- Among 61 certified models in this data, A. O. Smith water heaters (electric) cost $152 to $303 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $235.
- Do A. O. Smith water heaters (electric) cost more or less than the average electric water heater?
- The median model here runs $235 a year, 6% more than the $222 median across all certified water heaters (electric).
- What's the cheapest model among A. O. Smith water heaters (electric)?
- The A. O. Smith HPS10-50H45DV 2 costs about $152 a year at the U.S. average rate (831 kWh/yr) — the lowest certified figure in this group.
- What does the certified annual-kWh figure assume for water heaters (electric)?
- The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.