Model
Thor Kitchen TDW24PT
Rank #377 means 376 of the 709 dishwasher models we track cost less to run each year; the 56th efficiency percentile means it uses less energy for its size than 56% of those models.
What does the Thor Kitchen TDW24PT cost to run per year?
The Thor Kitchen TDW24PT costs about $45 a year to run, a middle-of-the-pack figure at rank #377 of 709. It uses 21.8% less energy than the U.S. federal standard model in its class, which would cost about $57/yr to run, a saving of roughly $12 a year. Its 56th size-adjusted efficiency percentile is unremarkable, close to what a typical model in the class scores. At 14 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 Thor Kitchen TDW24C8SL at $45/yr runs a little cheaper and the Thor Kitchen TDW24PTB at $45/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 Thor Kitchen TDW24PT's $45/yr adds up to roughly $405 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BDW400MS.
By the numbers
The Thor Kitchen TDW24PT 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 $45/yr, here is what the Thor Kitchen TDW24PT adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Thor Kitchen TDW24PT costs about $450. That is roughly $120 less than a standard model in its class, which would run closer to $570 over the same ten years.
How the Thor Kitchen TDW24PT compares
The dishwasher class we track runs from $15 to $45 a year. At $45/yr, it runs about $1 a year above the class median of $44, and it is about $30 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 Thor Kitchen TDW24PT uses 21.8% less energy.
What drives its running cost
At 14 place settings, the Thor Kitchen TDW24PT is a mid-size dishwasher for its class, which spans 2 to 18 place settings with a median of 14 place settings, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class.
- 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 Thor Kitchen TDW24PT cheap to run?
It is about average. At $45 a year it ranks #377 of 709 dishwasher models we track, close to the middle of its class on running cost.
How much does the Thor Kitchen TDW24PT cost per month?
Roughly $3.71/mo, spreading the $45/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 240 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $45 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Thor Kitchen TDW24PT for its size?
56th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1140355_TDW24PT_071420250645993_5408262View certified dishwasher listingsENERGY STAR data as of July 2026Thor Kitchen and TDW24PT 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.