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.
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 226 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 GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1**: GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1* ($174/yr, 923 kWh/yr), then GSW WATER HEATERS GHPCO-45 1**+GXST-50STTP 1* ($174/yr, 923 kWh/yr).
Same brand, different models
Ranked 3 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).
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
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
A electric water heater like the GSW WATER HEATERS GHPCO-45 1**+GXST-50S 1** is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Where this number comes from
At rank 226 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.