Model
Summit DW242W
Rank #174 means 173 of the 709 dishwasher models we track cost less to run each year; the 77th efficiency percentile means it uses less energy for its size than 77% of those models.
What does the Summit DW242W cost to run per year?
At $43 a year to run, the Summit DW242W runs cheaper than most models in its class, ranking #174 of 709 dishwasher models we track. It uses 23.8% less energy than the U.S. federal standard model in its class, which would cost about $57/yr to run, a saving of roughly $14 a year. Its 77th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. At 15 place settings, it is a mid-size dishwasher for the class, which runs 2 to 18 place settings; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Summit DW186NTADA at $43/yr runs a little cheaper and the Summit DW242WADA at $43/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 Summit DW242W's $43/yr adds up to roughly $387 in electricity alone, before purchase price or repairs.
Also sold as: Aeg F8242FI.
By the numbers
The Summit DW242W 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 $43/yr, here is what the Summit DW242W adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Summit DW242W costs about $430. That is roughly $140 less than a standard model in its class, which would run closer to $570 over the same ten years.
How the Summit DW242W compares
The dishwasher class we track runs from $15 to $45 a year. At $43/yr, it runs about $1 a year cheaper than the class median of $44, and it is about $28 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 Summit DW242W uses 23.8% less energy.
What drives its running cost
At 15 place settings, the Summit DW242W is a mid-size dishwasher for its class, which spans 2 to 18 place settings with a median of 14 place settings, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone.
- Place-setting capacity. A larger dishwasher heats more water per cycle, so bigger capacity generally means a higher annual energy figure, independent of how efficient the unit is.
- Water heating. The booster heater that brings water up to sanitizing temperature is usually the single largest electrical load in a dishwasher's cycle.
- Cycle length and drying method. Cycle selection, eco versus heavy, air-dry versus heated-dry, moves real running cost more than most owners realize for a given capacity.
Common questions
Is the Summit DW242W cheap to run?
Yes, relatively. At $43 a year it ranks #174 of 709 dishwasher models we track, in the cheaper part of its class to run.
How much does the Summit DW242W cost per month?
Roughly $3.62/mo, spreading the $43/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 234 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $43 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Summit DW242W for its size?
77th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_92282_DW242W_041120211516530_1484652View certified dishwasher listingsENERGY STAR data as of July 2026Summit and DW242W 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.