Appliance Energy Cost Index Model-level energy use and running cost, from ENERGY STAR certified product data

SDNAH981* Dishwashers · LG SIGNATURE

SDNAH981* (LG SIGNATURE, ENERGY STAR Most Efficient) uses 220 kWh per year, an estimated $37.40/yr to run, ranking 4th cheapest of 80 sampled dishwashers, 8% below the $40.80/yr median of the 80 sampled models.

Certification: ENERGY STAR Most Efficient

Est. annual energy cost
$37.40/yr
Cheaper than all but 4% of sampled models in this category
Annual energy use: 220 kWh
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Where this model sits (computed from source data)

Figures above are computed at build time from the sampled source records - no external estimates are used.
Cost rank in category4th of 80
Cost percentilebottom 4%
Vs category median8% below ($40.80/yr)
Rank within same status4th of 10 (Median $37.40/yr)
Rank within similar capacity4th of 57 · capacity maximum number of place settings 12.8~19.2 (Median $40.80/yr)
Category low to high$35.70/yr ~ $40.80/yr

Certified specifications (as reported)

Specifications exactly as reported in the certified dataset.
SpecValue
typeStandard
width inches23.8
depth inches23.8
capacity maximum number of place settings16
soil sensing capabilityYes
tub materialStainless Steel
drying methodAutomatic Door Release,Fan-Assisted Dry,Heated Dry
annual energy use kwh year220
us federal standard kwh year307
better than us federal standard kwh year28
water use gallons cycle2.90
us federal standard gallons cycle5
better than us federal standard gallons cycle42
connected capableNo
date available on market2026-07-01
date certified2026-07-08

Similar models in this category

Closest capacity first (at most two rows per identical cost).
ModelCertificationEst. energy cost
SKSDW2422* ENERGY STAR Most Efficient$37.40/yr
SDNTH981* ENERGY STAR Most Efficient$37.40/yr
DW90H89TE** ENERGY STAR Most Efficient$38.25/yr
DW24UCT2X4 ENERGY STAR Most Efficient$35.70/yr
DW24UDT2X4 ENERGY STAR Most Efficient$35.70/yr

Frequently asked questions

How much does it cost to run the LG SIGNATURE SDNAH981* per year?

The LG SIGNATURE SDNAH981* is certified at 220 kWh per year, which works out to about $37.40/yr at the flat rate assumed on this site. Certified figures come from standardized test procedures, so your actual bill varies with usage and your local electricity rate.

Is the LG SIGNATURE SDNAH981* efficient compared with other dishwashers?

Among the 80 dishwashers compared on this site, the LG SIGNATURE SDNAH981* ranks 4th cheapest to run and sits in the bottom 4% of the cost range. That is 8% below the category median of $40.80/yr. The cheapest sampled model runs at $35.70/yr and the most expensive at $40.80/yr.

What ENERGY STAR status does the LG SIGNATURE SDNAH981* hold?

The LG SIGNATURE SDNAH981* is listed as ENERGY STAR Most Efficient. Among the 10 sampled dishwashers with that status the median running cost is $37.40/yr, and the LG SIGNATURE SDNAH981* ranks 4th cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.

How does the LG SIGNATURE SDNAH981* compare with similarly sized models?

Using the certified capacity maximum number of place settings value of 16.0, 57 sampled models fall within +/-20% (12.8 to 19.2), and the LG SIGNATURE SDNAH981* ranks 4th cheapest among them. The median for that size band is $40.80/yr. Comparing within a size band is more meaningful than comparing certification labels.

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Simple estimate, 30 days per month (assuming $0.17/kWh)