GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1*: running cost
At 923 kWh/yr, the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1*'s ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified electric water heater.
The $174 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* against the category
That's 16.5% below the electric water heater category average of 1,105 kWh/yr, and ranks 225 of 596 certified electric water heaters for annual running cost, 1 being cheapest. The category average comes from every electric water heater ENERGY STAR currently certifies (596 models), not an outside benchmark, about $34/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1** ($174/yr, 923 kWh/yr) costs a little more to run than the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1*. Giant GTHPCO-45 1**+GTXST-50TTTP 1** ($174/yr, 923 kWh/yr) costs a little less.
Comparing GSW WATER HEATERS's own models
GSW WATER HEATERS makes 13 ENERGY STAR certified electric water heaters; this one ranks 2 of 13 for running cost, between the brand's cheapest, the GHPCO-45 1**+GXST-50LBTTP 1** at $172/yr, and its priciest, the GHPCO-45 1**+GXST-66TTP 1** at $252/yr.
GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* over 11 years
11 years is NAHB's typical service life for this category; at $174/year, the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* adds up to about $1,909 in electricity over that span.
Weighing a replacement
The GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* is already efficient for its category at $174/year. If you're shopping and comparing options, this is roughly what a well-chosen new electric water heater costs to run.
See what else is certified in this category before you decide.
Protecting what you have
$174/year to run is the predictable cost of the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1*; a protection plan covers the unpredictable one, a repair bill.
Sourcing
Nothing here is estimated from a nameplate wattage; the 923 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 225 of 596, the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* sits in the middle of the electric water heater category, see the guide to why your state changes this number for the other half of the math.