Dishwashers
LG SIGNATURESDNAH981*
ENERGY STAR certified · Jul 2026 · Most Efficient
- Annual energy use
- 220 kWh/yr
- Capacity
- 16 place settings
- Below federal standard
- 28 %
Running cost calculator
Where your state sits among all 51
Cost to run a dishwasher in every state
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How this is calculated
- Annual energy use is the figure ENERGY STAR lists for this model under typical test conditions. It is not measured in your home.
- Yearly cost = annual kWh × your rate. Monthly cost is the yearly cost divided by 12, a flat average. Five-year cost keeps the rate constant; prices will change.
- Statewide averages are not your utility’s tariff. Use your bill’s rate for a closer number.
- We do not estimate watts or hourly cost: the source data does not include them.
How it compares
Among 406 ENERGY STAR certified standard models with a similar capacity (12.8 to 19.2 place settings), this one ranks 30th lowest in annual energy use.
- Median of these models
- 239 kWh/yr
- This model vs the median
- -8%
- Uses less than
- 86% of them
Compared with every comparable model on the ENERGY STAR list, not only the ones published on this site. Same type, similar size.
Same type and size, lower energy use
| Model | kWh/yr | Difference |
|---|---|---|
| Fisher & Paykel DW24UT2I3 | 210 | 210 kWh |
| Fisher & Paykel DW24UDT2X4 | 210 | 210 kWh |
| Fisher & Paykel DW24UDT4X4 | 210 | 210 kWh |
| Fisher & Paykel DW24UCT2X4 | 210 | 210 kWh |
| Smeg DW8630 | 219 | 219 kWh |
Yearly cost by state
Same 220 kWh/yr at each state’s average residential price (2026-07).
Comparable models
Same type, within 20% of this model’s capacity.
Specifications
- Annual energy use
- 220 kWh/yrENERGY STAR estimated annual energy use, typical use (DOE test procedure)
- Capacity
- 16 place settingsMaximum number of place settings
- Below federal standard
- 28 %As published by ENERGY STAR
- Type
- Standard
- Width
- 23.8 in
- Depth
- 23.8 in
- Water use
- 2.90 gal/cycle
- Soil sensing
- Yes
- Tub material
- Stainless Steel
- Drying method
- Automatic Door Release,Fan-Assisted Dry,Heated Dry
- Connected
- No
- UPC
- 048231350303
- Markets
- United States, Canada
- Available on market
- 2026-07-01
- ENERGY STAR ID
- 4667255
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Frequently asked questions
How much electricity does the LG SIGNATURE SDNAH981* use?
ENERGY STAR lists 220 kWh per year under typical test conditions, which is calculated with U.S. Department of Energy test procedures and does not include the water heating done by your water heater. Your use will differ with how many loads you run and which cycle you choose.
How much does it cost to run?
At statewide average residential prices, the listed annual use costs about $27.98 in Louisiana and $105.60 in Hawaii (EIA, 2026-07). Your own utility rate may be different; enter it in the calculator.
How does the LG SIGNATURE SDNAH981* compare with similar models?
Among 406 ENERGY STAR certified standard models with a similar capacity, it ranks 30th lowest in annual energy use. Its 220 kWh per year is 8% below the median of 239 kWh.
How many place settings does it hold?
ENERGY STAR lists this model at 16 place settings. A place setting is the set of dishes and utensils one person uses for a meal. Compact dishwashers hold fewer than the standard size.
How does it compare with the federal standard?
ENERGY STAR lists this model as using 28% less energy than the federal standard for its size. That percentage is published by ENERGY STAR and is not recalculated here.
Learn more
Methodology and sources
Model data comes from the ENERGY STAR Certified Dishwashers dataset (EPA). Electricity prices are statewide average residential prices from the U.S. EIA, latest period July 2026. Values are stored locally and refreshed by scheduled imports. Missing values are left blank, never estimated.