A dishwasher is not just a motor load. It may run pumps, controls, water heating and drying functions during the same cycle — so both energy and inverter output matter.
The 1.00 kWh default is a planning placeholder, not a universal dishwasher specification. Replace it with model-specific cycle or measured energy. The 1,440 W default is a current Bosch model example, not a category-wide rating.
Add Dishwasher to My Backup Plan →Current ENERGY STAR qualification ceiling for standard-size certified dishwashers.
The DOE/ENERGY STAR test procedure uses 215 cycles per year.
One current Bosch 24-inch model lists 1,440 W at 120 V.
The circulation and drain systems use motors and controls during parts of the cycle.
Dishwashers consume energy to operate the machine and heat water; ENERGY STAR explicitly includes these functions in its energy accounting.
Different products use different drying strategies, so cycle energy can vary meaningfully by model and selected cycle.
During a constrained outage, refrigeration, medical devices, communications, lighting and water systems usually deserve battery capacity first. Add the dishwasher only after the critical-load plan is secure.
Your battery may hold enough kWh for a complete wash cycle and still fail to run the dishwasher if the inverter cannot supply the appliance's actual electrical demand.
ENERGY STAR's current standard-size dishwasher criterion is ≤240 kWh/year, and its test procedure uses 215 cycles/year. That figure is useful for efficiency comparison, but it is not a direct substitute for your appliance's instantaneous wattage or the energy of one specific selected cycle.
Use model-specific or measured kWh per cycle whenever possible.
kWh/cycleHow many complete cycles you plan to run during the outage.
cyclesCycle energy × number of cycles, plus any planning dry adjustment selected.
kWhDivide by 0.90 assumed efficiency, then apply 20% planning margin.
÷ .90 × 1.20Verify the appliance's electrical rating independently of energy capacity.
WEnough stored energy and enough inverter output.
kWh + WStandard-size certified dishwashers must meet a maximum of 240 kWh/year under the current criteria.
ENERGY STAR criteria →The ENERGY STAR/DOE test method uses 215 cycles per year and includes machine, water-heating and standby energy in annual estimates.
Test-method details →A current Bosch 100 Series Plus dishwasher specification sheet lists 1,440 W, 12 A and 120 V.
Bosch spec sheet →Yes, if both stored energy and inverter output are sufficient for the specific appliance.
It varies by model and cycle. Use your EnergyGuide information, manufacturer documentation or a measured value rather than assuming a universal number.
Yes. Drying strategy can change total cycle energy. If you can disable heated dry, the required backup energy may decrease depending on the model.
Usually not before refrigeration, lighting, communications, medical loads and water systems. Treat it as a comfort load unless your situation specifically makes it important.
See whether the dishwasher still fits after your essential loads have been covered.
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