Model
Midea MAW24V2KYWT-S
Rank #377 means 376 of the 404 room air conditioner models we track cost less to run each year; the 10th efficiency percentile means it uses less energy for its size than 10% of those models.
What does the Midea MAW24V2KYWT-S cost to run per year?
The Midea MAW24V2KYWT-S holds rank #377 of 404 on running cost, at about $242 a year, a genuinely pricey result for the class. It uses 47% less energy than the U.S. federal standard model in its class, which would cost about $457/yr to run, a saving of roughly $215 a year. Size-adjusted, this model ranks near the bottom of its class on efficiency, ahead of just 10% of room air conditioner models we track. At a CEER of 13.8, 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 MAW24S2KWT-A at $242/yr runs a little cheaper and the Midea MWCUWH-24CRFN8-MCM8 at $242/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 MAW24V2KYWT-S's $242/yr adds up to roughly $2420 in electricity alone, before purchase price or repairs.
Also sold as: Midea MAW24S2KWT-A.
By the numbers
The Midea MAW24V2KYWT-S 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 $242/yr, here is what the Midea MAW24V2KYWT-S 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 MAW24V2KYWT-S costs about $2420. That is roughly $2150 less than a standard model in its class, which would run closer to $4570 over the same ten years.
How the Midea MAW24V2KYWT-S compares
The room air conditioner class we track runs from $51 to $389 a year. At $242/yr, it runs about $143 a year above the class median of $99, and it is about $191 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $457/yr, the Midea MAW24V2KYWT-S uses 47% less energy.
What drives its running cost
At 24000 BTU/hr, the Midea MAW24V2KYWT-S is a large room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, among room air conditioner models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal. The CEER of 13.8 on this model, below 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 MAW24V2KYWT-S cheap to run?
Its $242/yr running cost, rank #377 of 404, is above what most room air conditioner models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Midea MAW24V2KYWT-S cost per month?
About $20.17 a month, which is the $242 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: 1,304 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $242 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea MAW24V2KYWT-S for its size?
10th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_1138537_MAW24V2KYWT-S_04142026105407_80294581View certified room air conditioner listingsENERGY STAR data as of July 2026Midea and MAW24V2KYWT-S 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.