Model
Whirlpool UDPS5118SP
Rank #74 means 73 of the 709 dishwasher models we track cost less to run each year; the 11th efficiency percentile means it uses less energy for its size than 11% of those models.
What does the Whirlpool UDPS5118SP cost to run per year?
The Whirlpool UDPS5118SP runs for about $41 a year, landing it near the bottom of the cost table at rank #74 of 709 dishwasher models we track. It uses 28.3% less energy than the U.S. federal standard model in its class, which would cost about $57/yr to run, a saving of roughly $16 a year. Capacity-normalized, it ranks ahead of just 11% of dishwasher models we track, a clearly below-average result. This class has no published efficiency-factor figure beyond annual kWh itself, so at 8 place settings (the class spans 2 to 18), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Summit DW18SS4 at $41/yr runs a little cheaper and the Whirlpool WDFS5118SS at $41/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A dishwasher typically stays in service for somewhere around 9 years; over that span, the Whirlpool UDPS5118SP's $41/yr adds up to roughly $369 in electricity alone, before purchase price or repairs.
Also sold as: Beko DIS25842.
By the numbers
The Whirlpool UDPS5118SP 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 $41/yr, here is what the Whirlpool UDPS5118SP adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Whirlpool UDPS5118SP costs about $410. That is roughly $160 less than a standard model in its class, which would run closer to $570 over the same ten years.
How the Whirlpool UDPS5118SP compares
The dishwasher class we track runs from $15 to $45 a year. At $41/yr, it runs about $3 a year cheaper than the class median of $44, and it is about $26 a year more than the cheapest dishwasher to run at $15. Against the US federal standard model for its class at about $57/yr, the Whirlpool UDPS5118SP uses 28.3% less energy.
What drives its running cost
At 8 place settings, the Whirlpool UDPS5118SP is a small dishwasher for its class, which spans 2 to 18 place settings with a median of 14 place settings, less capacity to service is usually the first reason a running-cost figure lands on the low side, before efficiency even enters the picture.
- Place-setting capacity. Place-setting capacity is the main driver of how much water a cycle has to heat, and heating that water is most of a dishwasher's electricity use.
- Water heating. Most dishwashers have a booster heater that raises incoming water to sanitizing temperature; this heating step, not the pump or motor, accounts for most of a cycle's electricity use.
- Cycle length and drying method. Heavy or sanitize cycles run longer and hotter than a normal or eco cycle, and heated-dry options cost more to run than air-dry or condensation drying.
Common questions
Is the Whirlpool UDPS5118SP cheap to run?
Yes. Its $41/yr running cost puts it at rank #74 of 709, below what most dishwasher models we track cost to run.
How much does the Whirlpool UDPS5118SP cost per month?
About $3.4 a month, which is the $41 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: 220 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $41 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Whirlpool UDPS5118SP for its size?
11th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_22856_UDPS5118SP_102020250226530_6599131View certified dishwasher listingsENERGY STAR data as of July 2026Whirlpool and UDPS5118SP 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.