Model
Lg Signature WM9700H*A
Rank #168 means 167 of the 388 washing machine models we track cost less to run each year; the 95th efficiency percentile means it uses less energy for its size than 95% of those models.
What does the Lg Signature WM9700H*A cost to run per year?
The Lg Signature WM9700H*A holds rank #168 of 388 on running cost, at about $20 a year, an unremarkable but typical figure for the class. Its 95th size-adjusted efficiency percentile puts it in a small top tier of the class once capacity stops flattering the comparison. The IMEF figure of 3.2 on this model captures integrated modified energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Haier QFW150S*N*** at $20/yr runs a little cheaper and the Lg Signature WM9900H*A at $20/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A washing machine typically stays in service for somewhere around 10 years; over that span, the Lg Signature WM9700H*A's $20/yr adds up to roughly $200 in electricity alone, before purchase price or repairs.
Also sold as: Lg Signature WM9900H*A, Lg Signature WM9901H*A, Lg Signature WM9998H*A.
By the numbers
The Lg Signature WM9700H*A 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 $20/yr, here is what the Lg Signature WM9700H*A adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Lg Signature WM9700H*A costs about $200. That is roughly $0 less than the class median, which would run closer to $200 over the same ten years.
How the Lg Signature WM9700H*A compares
The washing machine class we track runs from $7 to $58 a year. At $20/yr, it sits right on the class median of $20, and it is about $13 a year more than the cheapest washing machine to run at $7.
What drives its running cost
At 5.8 cu ft, the Lg Signature WM9700H*A is a large washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 cu ft, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up. Beyond size, its IMEF of 3.2, above the class median of 2.76, is the class's own efficiency yardstick, integrated modified energy factor, and it is what separates two similarly sized models with different running costs.
- Spin and wash efficiency (IMEF). IMEF is this class's core efficiency yardstick; two washers with the same drum size can carry meaningfully different IMEF figures and running costs.
- Drum volume. A larger-capacity washer can wash more per load, which can lower cost per pound of laundry, but it also draws more water and energy per cycle if you are not filling it.
- Water heating. Most washers rely on your home's hot water supply, but internal-heater sanitize or hot-wash cycles use meaningfully more electricity than a cold or warm wash.
Common questions
Is the Lg Signature WM9700H*A cheap to run?
Roughly, yes. Its $20/yr figure is close to the class median, ranking #168 of 388, neither a bargain nor a splurge on running cost.
How much does the Lg Signature WM9700H*A cost per month?
About $1.67 a month, which is the $20 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: 108 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $20 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg Signature WM9700H*A for its size?
95th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 167 | Haier QFW150S*N***2.4 cu ft | $20 |
| 166 | Smeg WM24UWH2.3 cu ft | $20 |
| 165 | Blomberg WM98220SX*2.3 cu ft | $20 |
| 164 | Beko WFTV10733XC*2.3 cu ft | $20 |
| 163 | Samsung WV60M99**A***5 cu ft | $19 |
Source
ES_1118034_WM9700H*A_02132026130902_80269673View certified washing machine listingsENERGY STAR data as of July 2026Lg Signature and WM9700H*A 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.