What the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1** costs to run
ENERGY STAR certifies the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1** at 915 kWh/yr, cheaper than most models in its category to run for its category.
The $172 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1** against the category
That's 17.2% below the electric water heater category average of 1,105 kWh/yr, and ranks 192 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 $36/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
Rheem CPROPH50 T2 RH350BM ($172/yr, 915 kWh/yr) costs a little more to run than the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1**. Lochinvar LHPCO-45 1**+LXST-50LBTTP 1** ($172/yr, 915 kWh/yr) costs a little less.
Comparing RELIANCE WATER HEATERS's own models
RELIANCE WATER HEATERS makes 28 ENERGY STAR certified electric water heaters; this one ranks 6 of 28 for running cost, between the brand's cheapest, the 10-50-DHPTS 2** at $156/yr, and its priciest, the 10-80-DHPTV 2** at $311/yr.
What this adds up to over time
Over the 11-year service life NAHB reports for this category, running the RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1** costs roughly $1,892 in electricity, separate from the purchase price.
Weighing a replacement
The RELIANCE WATER HEATERS RHPCO-45 1**+RXST-50LBG 1** is already efficient for its category at $172/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
At $172/year just to run, a electric water heater is worth protecting against an unplanned repair bill on top of that.
Sourcing
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. 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.