Model
Blomberg DWDT56310X
Rank #127 means 126 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 Blomberg DWDT56310X cost to run per year?
Rank #127 of 709 puts the Blomberg DWDT56310X among the cheapest dishwasher models we track to keep running, at roughly $43 a year. It uses 25.4% 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. Size-adjusted, this model beats 77% of dishwasher models we track on efficiency, better than most of its class. This class has no published efficiency-factor figure beyond annual kWh itself, so at 15 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 Blomberg DWDI56310 at $43/yr runs a little cheaper and the Frigidaire FDSH4502**** 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 Blomberg DWDT56310X's $43/yr adds up to roughly $387 in electricity alone, before purchase price or repairs.
Also sold as: Blomberg DWDI56310.
By the numbers
The Blomberg DWDT56310X 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 Blomberg DWDT56310X adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Blomberg DWDT56310X 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 Blomberg DWDT56310X 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 Blomberg DWDT56310X uses 25.4% less energy.
What drives its running cost
At 15 place settings, the Blomberg DWDT56310X is a mid-size dishwasher for its class, which spans 2 to 18 place settings with a median of 14 place settings, putting it squarely in the middle of the class on the size lever that drives most of the cost.
- 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 Blomberg DWDT56310X cheap to run?
Yes. Its $43/yr running cost puts it at rank #127 of 709, below what most dishwasher models we track cost to run.
How much does the Blomberg DWDT56310X cost per month?
About $3.54 a month, which is the $43 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: 229 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $43 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Blomberg DWDT56310X for its size?
77th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_1036108_DWDT56310X_060120262003483_4843320View certified dishwasher listingsENERGY STAR data as of July 2026Blomberg and DWDT56310X 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.