Model
Midea MAW08V1UWT
Rank #51 means 50 of the 404 room air conditioner models we track cost less to run each year; the 85th efficiency percentile means it uses less energy for its size than 85% of those models.
What does the Midea MAW08V1UWT cost to run per year?
Among the 404 room air conditioner models we track, the Midea MAW08V1UWT's $74/yr running cost ranks it #51, comfortably in the cheap-to-run group. It uses 38% less energy than the U.S. federal standard model in its class, which would cost about $120/yr to run, a saving of roughly $46 a year. Its size-adjusted efficiency percentile of 85 means the low running cost is not just a function of size; it is genuinely efficient for its class. At a CEER of 15, its combined energy efficiency ratio is the single figure that best explains how it earns its running-cost number.
Immediately around it on the leaderboard, the Midea MAW08V1QWT-T at $74/yr runs a little cheaper and the Midea MAW08V1YWT-S at $74/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A room air conditioner typically stays in service for somewhere around 10 years; over that span, the Midea MAW08V1UWT's $74/yr adds up to roughly $740 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BD08NWES.
By the numbers
The Midea MAW08V1UWT 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 $74/yr, here is what the Midea MAW08V1UWT adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Midea MAW08V1UWT costs about $740. That is roughly $460 less than a standard model in its class, which would run closer to $1200 over the same ten years.
How the Midea MAW08V1UWT compares
The room air conditioner class we track runs from $51 to $389 a year. At $74/yr, it runs about $25 a year cheaper than the class median of $99, and it is about $23 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $120/yr, the Midea MAW08V1UWT uses 38% less energy.
What drives its running cost
At 8000 BTU/hr, the Midea MAW08V1UWT is a small room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, 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 CEER of 15 on this model, above the class median of 15, measures combined energy efficiency ratio; it is the number to compare directly against another model's CEER if capacity is similar.
- Combined Energy Efficiency Ratio (CEER). Two units with the same BTU rating can post very different running costs, and CEER is the figure that explains most of that gap.
- BTU cooling capacity. BTU rating scales with room size, and it is usually the first driver of an air conditioner's running cost, ahead of its CEER figure.
- Thermostat and mode usage. How the unit is actually operated, thermostat cycling versus a fixed setting, moves real electricity use more than the rated BTU or CEER figure alone.
Common questions
Is the Midea MAW08V1UWT cheap to run?
Yes. Its $74/yr running cost puts it at rank #51 of 404, below what most room air conditioner models we track cost to run.
How much does the Midea MAW08V1UWT cost per month?
About $6.19 a month, which is the $74 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: 400 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $74 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea MAW08V1UWT for its size?
85th 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 |
|---|---|---|
| 84 | Midea MAW08V1QWT-T8000 BTU/hr | $74 |
| 83 | Midea MAW08V1QWT-S8000 BTU/hr | $74 |
| 82 | Midea MAW08V1QWT8000 BTU/hr | $74 |
| 81 | Midea MAW08S1VWWT-T8000 BTU/hr | $74 |
| 80 | Midea MAW08S1VWT-A8000 BTU/hr | $74 |
Source
ES_1138537_MAW08V1UWT_10142025110929_80271405View certified room air conditioner listingsENERGY STAR data as of July 2026Midea and MAW08V1UWT 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.