Model
Hisense WF5S2845BT
Rank #1 means 0 of the 388 washing machine models we track cost less to run each year; the 99th efficiency percentile means it uses less energy for its size than 99% of those models.
What does the Hisense WF5S2845BT cost to run per year?
The Hisense WF5S2845BT costs about $7 a year to run, a figure that only a handful of the 388 washing machine models we track can beat, rank #1. Once capacity is factored in, it outperforms 99% of the washing machine models we track on efficiency, near the very top of the normalized ranking. Its IMEF of 2.92 reflects integrated modified energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Hisense WF5S2845BB at $7/yr runs a little cheaper and the Hisense WF5S2845BW at $7/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 Hisense WF5S2845BT's $7/yr adds up to roughly $70 in electricity alone, before purchase price or repairs. At rank #1 of 388, it is one of the single cheapest washing machine models we track to run, in the top one percent on cost.
Also sold as: Hisense WF5S2845BB.
By the numbers
The Hisense WF5S2845BT 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 $7/yr, here is what the Hisense WF5S2845BT adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Hisense WF5S2845BT costs about $70. That is roughly $130 less than the class median, which would run closer to $200 over the same ten years.
How the Hisense WF5S2845BT compares
The washing machine class we track runs from $7 to $58 a year. At $7/yr, it runs about $13 a year cheaper than the class median of $20, and it is the cheapest washing machine to run in the class among the models we track.
What drives its running cost
At 2.8 cu ft, the Hisense WF5S2845BT is a small washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 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. The IMEF of 2.92 on this model, above the class median of 2.76, measures integrated modified energy factor; it is the number to compare directly against another model's IMEF if capacity is similar.
- Spin and wash efficiency (IMEF). A higher Integrated Modified Energy Factor means the machine wrings more useful washing (and a drier spin) out of every kilowatt-hour and gallon it uses.
- Drum volume. Drum volume sets the ceiling on how much a single cycle can wash, and it is usually the first driver of a washer's per-cycle energy use.
- Water heating. Cycle temperature, more than drum size, is usually what separates a cheap wash cycle from an expensive one on models with an internal water heater.
Common questions
Is the Hisense WF5S2845BT cheap to run?
Yes, relatively. At $7 a year it ranks #1 of 388 washing machine models we track, in the cheaper part of its class to run.
How much does the Hisense WF5S2845BT cost per month?
Roughly $0.6/mo, spreading the $7/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 39 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $7 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Hisense WF5S2845BT for its size?
99th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 1 | Hisense WF5S2845BB2.8 cu ft | $7 |
Source
ES_1153030_WF5S2845BT_042220260642202_7946341View certified washing machine listingsENERGY STAR data as of July 2026Hisense and WF5S2845BT 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.