GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1**: running cost
At 923 kWh/yr, the GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1**'s ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified electric water heater.
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.
How the GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1** compares to other electric water heaters
Against the category average of 1,105 kWh/yr, this model uses 16.5% less, ranking 228 of 596 electric water heaters tracked here for running cost. 596 certified electric water heaters, one average, about $34/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1** on that list: GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1* ($174/yr, 923 kWh/yr) runs slightly less, while GSW WATER HEATERS GHPCO-45 1**+GXST-50T 1** ($174/yr, 923 kWh/yr) runs slightly more.
Comparing GSW WATER HEATERS's own models
Ranked 5 of GSW WATER HEATERS's 13 certified electric water heaters, this sits between the GHPCO-45 1**+GXST-50LBTTP 1** ($172/yr, the brand's cheapest) and the GHPCO-45 1**+GXST-66TTP 1** ($252/yr, its priciest).
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1** that long and it costs about $1,909 in electricity, on top of whatever it cost to buy.
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
At $174/year just to run, a electric water heater is worth protecting against an unplanned repair bill on top of that.
How this was checked
At rank 228 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. The 923 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.