Model
Midea MDF18A1A**
Rank #198 means 197 of the 709 dishwasher models we track cost less to run each year; the 10th efficiency percentile means it uses less energy for its size than 10% of those models.
What does the Midea MDF18A1A** cost to run per year?
Ranking #198 of 709, the Midea MDF18A1A** is in the cheaper half of its class to run, at about $43 a year. 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. Normalized for capacity, it beats only 10% of dishwasher models we track, one of the weaker efficiency results we track for the class. At 8 place settings, it is a small 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 Midea CDF18A2B** at $43/yr runs a little cheaper and the Moffat MBF420S*P*** 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 Midea MDF18A1A**'s $43/yr adds up to roughly $387 in electricity alone, before purchase price or repairs.
Also sold as: Edgestar BIDW1802**.
By the numbers
The Midea MDF18A1A** 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 Midea MDF18A1A** adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Midea MDF18A1A** 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 Midea MDF18A1A** 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 Midea MDF18A1A** uses 23.8% less energy.
What drives its running cost
At 8 place settings, the Midea MDF18A1A** is a small dishwasher for its class, which spans 2 to 18 place settings with a median of 14 place settings, and smaller dishwasher models generally cost less to run for the same job, all else being equal.
- 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 Midea MDF18A1A** cheap to run?
Yes, relatively. At $43 a year it ranks #198 of 709 dishwasher models we track, in the cheaper part of its class to run.
How much does the Midea MDF18A1A** 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 Midea MDF18A1A** for its size?
10th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1030337_MDF18A1A**_042720230115847_3299820View certified dishwasher listingsENERGY STAR data as of July 2026Midea and MDF18A1A** 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.