Model
Lg SWWE50*4
Rank #150 means 149 of the 615 clothes dryer models we track cost less to run each year; the 62nd efficiency percentile means it uses less energy for its size than 62% of those models.
What does the Lg SWWE50*4 cost to run per year?
The Lg SWWE50*4 is a relatively cheap runner for its class: about $113 a year, rank #150 of 615. Its 62th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. The CEF figure of 3.94 on this model captures combined energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Lg SWWE50*3 at $113/yr runs a little cheaper and the Lg DLE8400*E at $113/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A clothes dryer typically stays in service for somewhere around 13 years; over that span, the Lg SWWE50*4's $113/yr adds up to roughly $1469 in electricity alone, before purchase price or repairs.
Also sold as: Lg DLE3090*.
By the numbers
The Lg SWWE50*4 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 $113/yr, here is what the Lg SWWE50*4 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 SWWE50*4 costs about $1130. That is roughly $0 less than the class median, which would run closer to $1130 over the same ten years.
How the Lg SWWE50*4 compares
The clothes dryer class we track runs from $23 to $128 a year. At $113/yr, it sits right on the class median of $113, and it is about $90 a year more than the cheapest clothes dryer to run at $23.
What drives its running cost
At 7.4 cu ft, the Lg SWWE50*4 is a small clothes dryer for its class, which spans 3.8 to 9.2 cu ft with a median of 7.4 cu ft, less capacity to service is usually the first reason a running-cost figure lands on the low side, before efficiency even enters the picture. Beyond size, its CEF of 3.94, above the class median of 3.93, is the class's own efficiency yardstick, combined energy factor, and it is what separates two similarly sized models with different running costs.
- Heat source and Combined Energy Factor (CEF). CEF combines drying performance with standby and off-mode energy use; for a given drum size, a higher CEF means less energy per pound of laundry dried, and heat-pump models usually post the highest figures in the class.
- Drum capacity. Drum capacity sets how much laundry one cycle can hold, and heating a bigger volume of air generally costs more energy per cycle.
Common questions
Is the Lg SWWE50*4 cheap to run?
Yes, relatively. At $113 a year it ranks #150 of 615 clothes dryer models we track, in the cheaper part of its class to run.
How much does the Lg SWWE50*4 cost per month?
Roughly $9.39/mo, spreading the $113/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 607 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $113 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Lg SWWE50*4 for its size?
62nd percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 182 | Lg SWWE50*37.4 cu ft | $113 |
| 181 | Lg WKEX300H*A7.4 cu ft | $113 |
| 180 | Lg DLEX5500*7.4 cu ft | $113 |
| 179 | Lg DLE6100*7.3 cu ft | $113 |
| 178 | Lg DLEX6500*7.4 cu ft | $113 |
Source
ES_1118034_SWWE50*4_10162023164749_80186372View certified clothes dryer listingsENERGY STAR data as of July 2026Lg and SWWE50*4 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.