What the American MHPCO-45 1**+MXST-50T 1** costs to run
The American MHPCO-45 1**+MXST-50T 1** is certified by ENERGY STAR at 923 kWh a year, cheaper than most models in its category to run among electric water heaters currently certified.
That $174 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 16.5% less, ranking 215 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 $34/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 MHPCO-45 1**+MXST-50T 1**: American MHPCO-45 1**+MXST-50STTP 1** ($174/yr, 923 kWh/yr), then American MHPCO-45 1**+MXST-50TTTP 1** ($174/yr, 923 kWh/yr).
Comparing American's own models
Ranked 10 of American's 31 certified electric water heaters, this sits between the HPS10250H045DV 2** ($156/yr, the brand's cheapest) and the HPV10280H009DV 2** ($311/yr, its priciest).
American MHPCO-45 1**+MXST-50T 1** over 11 years
11 years is NAHB's typical service life for this category; at $174/year, the American MHPCO-45 1**+MXST-50T 1** adds up to about $1,909 in electricity over that span.
Weighing a replacement
Efficient as certified electric water heaters go, $174/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
Whether or not the American MHPCO-45 1**+MXST-50T 1** 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 923 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.