Model
Sh SH513-WW
Rank #575 means 574 of the 1,000 refrigerator models we track cost less to run each year; the 89th efficiency percentile means it uses less energy for its size than 89% of those models.
What does the Sh SH513-WW cost to run per year?
The Sh SH513-WW costs about $68 a year to run, a fairly typical figure for the class; it ranks #575 of 1,000. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $76/yr to run, a saving of roughly $8 a year. Its size-adjusted efficiency percentile of 89 sits well above the class median, a clearly above-average efficiency result. This class has no published efficiency-factor figure beyond annual kWh itself, so at 18.1 cu ft (the class spans 1.2 to 31.7), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Marathon MFF184SS at $68/yr runs a little cheaper and the Conservator GRMH185A* at $68/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Sh SH513-WW's $68/yr adds up to roughly $816 in electricity alone, before purchase price or repairs.
Also sold as: Hisense RT180N3S*EH.
By the numbers
The Sh SH513-WW normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $68/yr, here is what the Sh SH513-WW adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Sh SH513-WW costs about $680. That is roughly $80 less than a standard model in its class, which would run closer to $760 over the same ten years.
How the Sh SH513-WW compares
The refrigerator class we track runs from $8 to $149 a year. At $68/yr, it runs about $4 a year above the class median of $64, and it is about $60 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $76/yr, the Sh SH513-WW uses 10% less energy.
What drives its running cost
At 18.1 cu ft, the Sh SH513-WW is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, among refrigerator models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal.
- Interior volume. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Sh SH513-WW cheap to run?
Roughly, yes. Its $68/yr figure is close to the class median, ranking #575 of 1,000, neither a bargain nor a splurge on running cost.
How much does the Sh SH513-WW cost per month?
About $5.68 a month, which is the $68 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 367 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $68 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Sh SH513-WW for its size?
89th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 576 | Marathon MFF184SS18.1 cu ft | $68 |
| 575 | Hisense RT180N3S*EH18.1 cu ft | $68 |
| 574 | Commercial Cool CCR1800GW18.2 cu ft | $68 |
| 573 | Wood'S WFF180W18.2 cu ft | $68 |
| 572 | Lg LT18SO000S17.9 cu ft | $68 |
Source
ES_1154413_SH513-WW_06022026120003_80297847View certified refrigerator listingsENERGY STAR data as of July 2026Sh and SH513-WW are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.