WattCost

Data through April 2026

Computer Monitors · 97 certified models

Most Efficient Computer Monitors

Among all certified computer monitors, 97 clear the "Most Efficient Computer Monitors" threshold — running $2.09 to $20 a year at national-average rates (median $6.64, category-wide median $8.49).

The 50 most efficient (of 97)

Most Efficient Computer Monitors, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Acer PE140WU_zmost efficient11$2.09
2HP HP E14 G4most efficient13$2.41
3VAIO VJ5VP141XXXXmost efficient14$2.69
4EIZO FlexScan FLTmost efficient15$2.75
5MSI PRO MP161 E2most efficient15$2.83
6ASUS MQ16FCmost efficient15$2.88
7Lenovo A25160WX0most efficient16$2.96
8EIZO FlexScan S1734most efficient18$3.33
9HP 514pnmost efficient18$3.42
10ViewSonic VS19906most efficient21$3.89
11ASUS MB16NCGmost efficient21$4.01
12EIZO FlexScan EV2400Rmost efficient22$4.12
13LG 17MT70*-*.most efficient23$4.40
14Sharp DD-E224Fmost efficient24$4.55
15EIZO FlexScan EV2410Rmost efficient25$4.70
16ASUS MQ149CDmost efficient27$5.14
17PHILIPS 24B2G5200most efficient28$5.25
18ViewSonic VS19590most efficient28$5.27
19Lenovo C23215FE0most efficient28$5.31
20ViewSonic VS17551most efficient29$5.45
21ASUS VU249Hmost efficient29$5.47
22PHILIPS 27B2G5200most efficient29$5.52
23ViewSonic VS15560most efficient30$5.55
24ASUS VA24DQFSmost efficient30$5.59
25ASUS PA248QVmost efficient30$5.59
26ViewSonic VS20655most efficient30$5.61
27Acer B247Y_vmost efficient30$5.61
28ASUS VP229Qmost efficient30$5.64
29Acer B277_vmost efficient30$5.66
30ASUS VP229most efficient30$5.69
31ASUS VA24Dmost efficient30$5.71
32Acer V227Qmost efficient30$5.73
33Acer B277U_vmost efficient30$5.73
34LG 24BA450most efficient31$5.74
35DELL P2226Hbmost efficient31$5.78
36ASUS VA24DQFmost efficient31$5.80
37Acer B247Ymost efficient31$5.82
38BenQ GW2790C-Bmost efficient31$5.82
39ViewSonic VS20870most efficient31$5.83
40DELL P2225Hbmost efficient31$5.84
41DELL SE2225HMfmost efficient31$5.88
42Acer V247Wmost efficient32$5.94
43EIZO FlexScan S2134most efficient32$6.03
44ASUS VA27DQFSmost efficient32$6.05
45ASUS VU279Hmost efficient32$6.07
46ASUS PA248CNVmost efficient32$6.11
47ASUS VA27DQFmost efficient33$6.21
48PHILIPS 27B2G5500most efficient35$6.60
49DELL E2726HStmost efficient35$6.64
50ASUS VY279HGRmost efficient35$6.65

Questions, answered with the data

How much does it cost to run most efficient computer monitors?
Among 97 certified models in this data, most efficient computer monitors cost $2.09 to $20 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $6.64.
Do most efficient computer monitors cost more or less than the average computer monitor?
The median model here runs $6.64 a year, 22% less than the $8.49 median across all certified computer monitors.
What's the cheapest model among most efficient computer monitors?
The Acer PE140WU_z costs about $2.09 a year at the U.S. average rate (11 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for computer monitors?
The certified annual kWh (TEC) assumes the monitor is on 35% of the day and asleep the other 65%, per the ENERGY STAR test basis.

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