Running cost for the Rheem ECEPH80 T2 RH400-30
At 1,213 kWh/yr, the Rheem ECEPH80 T2 RH400-30's ENERGY STAR certification puts it more expensive than most models in its category to run against every other certified electric water heater.
That $228 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a electric water heater
The category average is 1,105 kWh/yr; this model runs 9.8% above it, ranking 328 of 596 electric water heaters tracked here for running cost. That average is drawn from all 596 electric water heaters ENERGY STAR currently certifies, not an outside number, a $20/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Rheem ECEPH80 T2 RH400-30: Rheem ECEPH80 T2 RH375-SO ($228/yr, 1,213 kWh/yr), then Rheem ECEPH80 T2 RH400-SO ($228/yr, 1,213 kWh/yr).
Same brand, different models
Ranked 61 of Rheem's 77 certified electric water heaters, this sits between the PROPH40 T0 RH120-M ($147/yr, the brand's cheapest) and the XE80T10HMS00U0 ($264/yr, its priciest).
Rheem ECEPH80 T2 RH400-30 over 11 years
11 years is NAHB's typical service life for this category; at $228/year, the Rheem ECEPH80 T2 RH400-30 adds up to about $2,508 in electricity over that span.
Is it worth replacing?
At $228/year, this is on the expensive side for a electric water heater; the cheapest certified model in this category runs about $121/year, worth knowing before buying either the Rheem ECEPH80 T2 RH400-30 or its replacement.
See what else is certified in this category before you decide.
If you're keeping it
Whether or not the Rheem ECEPH80 T2 RH400-30 ever needs replacing, a repair is the more common failure for a electric water heater, one a protection plan budgets for ahead of time.
Where this number comes from
The full Electric Water Heater category page shows all 596 electric water heaters ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 1,213 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.