• ENERGY STAR Most Efficient 2024
    Windows, Doors & Skylights
    THE YEAR'S BEST OF ENERGY STAR FOR EFFICIENCY & INNOVATION

    Products that make the ENERGY STAR Most Efficient list for 2024 deliver cutting edge energy efficiency along with the latest in technological innovation. They represent the year’s very best for energy savings and environmental protection.
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Series Name:
Fixed High Profile
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.11
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.48
ME Total ES Options Certified Field details:
273
ME Northern Zone Options Field details:
185
ME North-Central Zone Options Field details:
250
ME Southern Zone Options Field details:
133
ME South-Central Zone Options Field details:
133
Series Name:
Fixed Low Profile
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.11
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.53
ME Total ES Options Certified Field details:
269
ME Northern Zone Options Field details:
221
ME North-Central Zone Options Field details:
221
ME Southern Zone Options Field details:
100
ME South-Central Zone Options Field details:
98
Series Name:
Revocell Fixed Casement
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.11
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.15
ME SHGC Max Field details:
0.52
ME Total ES Options Certified Field details:
40
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
25
ME Southern Zone Options Field details:
16
ME South-Central Zone Options Field details:
16
Series Name:
Defender 88PH+ XI Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
5,760
ME Northern Zone Options Field details:
2,896
ME North-Central Zone Options Field details:
5,730
ME Southern Zone Options Field details:
3,934
ME South-Central Zone Options Field details:
3,934
Series Name:
A280/A580/S280/S580/A390 Fixed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.07
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
2,610
ME Northern Zone Options Field details:
1,571
ME North-Central Zone Options Field details:
2,202
ME Southern Zone Options Field details:
1,492
ME South-Central Zone Options Field details:
1,084
Series Name:
8361 Fixed Casement
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
153
ME Northern Zone Options Field details:
108
ME North-Central Zone Options Field details:
124
ME Southern Zone Options Field details:
60
ME South-Central Zone Options Field details:
41
Series Name:
400/500 Series Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.26
ME Total ES Options Certified Field details:
54
ME Northern Zone Options Field details:
29
ME North-Central Zone Options Field details:
44
ME Southern Zone Options Field details:
40
ME South-Central Zone Options Field details:
30
Series Name:
Revocell Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.16
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
40
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
31
ME Southern Zone Options Field details:
16
ME South-Central Zone Options Field details:
16
Series Name:
Defender 88PH+ XI Dual Action
Product Category Field details:
Window
Product Type Field details:
Dual Action (Tilt Turn)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.20
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
5,760
ME Northern Zone Options Field details:
2,064
ME North-Central Zone Options Field details:
5,760
ME Southern Zone Options Field details:
4,204
ME South-Central Zone Options Field details:
4,204
Series Name:
Revocell Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.16
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
40
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
31
ME Southern Zone Options Field details:
16
ME South-Central Zone Options Field details:
16
Series Name:
Impervia 2.0 Direct Set
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.13
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
511
ME Northern Zone Options Field details:
295
ME North-Central Zone Options Field details:
327
ME Southern Zone Options Field details:
306
ME South-Central Zone Options Field details:
181
Series Name:
Vinyl Casement Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.32
ME Total ES Options Certified Field details:
482
ME Northern Zone Options Field details:
260
ME North-Central Zone Options Field details:
428
ME Southern Zone Options Field details:
394
ME South-Central Zone Options Field details:
340
Series Name:
ComfortSmart Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
5,812
ME Northern Zone Options Field details:
1,762
ME North-Central Zone Options Field details:
2,624
ME Southern Zone Options Field details:
4,948
ME South-Central Zone Options Field details:
1,760
Series Name:
Pro/Premium/Premium EP - Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
2,941
ME Northern Zone Options Field details:
1,465
ME North-Central Zone Options Field details:
2,153
ME Southern Zone Options Field details:
2,100
ME South-Central Zone Options Field details:
1,312
Series Name:
Defender 88PH+ Pro Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.12
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.19
ME SHGC Max Field details:
0.41
ME Total ES Options Certified Field details:
3,840
ME Northern Zone Options Field details:
1,928
ME North-Central Zone Options Field details:
3,828
ME Southern Zone Options Field details:
2,628
ME South-Central Zone Options Field details:
2,628
Series Name:
Universal Series Fixed Window Exterior Glazed
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Fiberglass
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.21
ME SHGC Max Field details:
0.44
ME Total ES Options Certified Field details:
126
ME Northern Zone Options Field details:
76
ME North-Central Zone Options Field details:
114
ME Southern Zone Options Field details:
78
ME South-Central Zone Options Field details:
75
Series Name:
Direct Glaze Plus
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
863
ME Northern Zone Options Field details:
388
ME North-Central Zone Options Field details:
642
ME Southern Zone Options Field details:
579
ME South-Central Zone Options Field details:
382
Series Name:
6010 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.53
ME Total ES Options Certified Field details:
1,320
ME Northern Zone Options Field details:
689
ME North-Central Zone Options Field details:
1,115
ME Southern Zone Options Field details:
832
ME South-Central Zone Options Field details:
762
Series Name:
CPW Casement Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
401
ME Northern Zone Options Field details:
203
ME North-Central Zone Options Field details:
384
ME Southern Zone Options Field details:
274
ME South-Central Zone Options Field details:
257
Series Name:
6310 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.13
ME SHGC Min. Field details:
0.12
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.54
ME Total ES Options Certified Field details:
1,307
ME Northern Zone Options Field details:
756
ME North-Central Zone Options Field details:
1,102
ME Southern Zone Options Field details:
786
ME South-Central Zone Options Field details:
714