AMERICAN STANDARD WATER HEATERS ASHPWH-50*****: running cost
At 867 kWh/yr, the AMERICAN STANDARD WATER HEATERS ASHPWH-50*****'s ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified electric water heater.
That $163 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
Against the category average of 1,105 kWh/yr, this model uses 21.5% less, ranking 104 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 $45/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 AMERICAN STANDARD WATER HEATERS ASHPWH-50*****: LG R5TT20F-SA0 (240V) ($163/yr, 866 kWh/yr), then Ariston ARIHPWH-50 ($163/yr, 867 kWh/yr).
Comparing AMERICAN STANDARD WATER HEATERS's own models
Of the 4 ENERGY STAR certified electric water heaters AMERICAN STANDARD WATER HEATERS makes, the ASHPWH-50***** is the cheapest to run, $79/year less than AMERICAN STANDARD WATER HEATERS's priciest, the ASHPWH-65*****.
AMERICAN STANDARD WATER HEATERS ASHPWH-50***** over 11 years
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the AMERICAN STANDARD WATER HEATERS ASHPWH-50***** that long and it costs about $1,793 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified electric water heaters go, $163/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified electric water heaters before buying.
If you're keeping it
$163/year to run is the predictable cost of the AMERICAN STANDARD WATER HEATERS ASHPWH-50*****; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 867 kWh/yr is ENERGY STAR's own certified figure for this model. At rank 104 of 596 for running cost, see the electric water heater category page for the rest of the field, or the guide to how much your state matters.