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SAS Output
Table 11.4 SAIDI Values (Minutes Per Year) of U.S. Distribution System by State, 2015 - 2025

  IEEE Any Method
  All Events (With Major Event Days) Without Major Event Days Loss of Supply Removed All Events (With Major Event Days) Without Major Event Days
Census Division
and State
2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015
New England 176.4 389.8 489.3 309.3 382.1 1272.9 351.5 723.6 776.5 231.2 145.7 90.8 101.4 103.4 98.2 104.1 101.9 95 119.1 107.9 126.3 99.2 173.7 387.1 481.2 349.9 357.7 1284 351.7 721.4 780.4 229.4 140 186.5 419.6 480.5 333 364 1067.1 335.8 715.4 682.4 211.1 137.3 99.3 112.3 107.8 104.2 109.5 144.5 104.4 124.2 114.3 131.9 100.3
Connecticut 185.8 152.8 193.4 187.4 170.9 3033.8 246.6 761.6 348.9 201.1 112.5 77 73.6 77.7 73.7 76.7 70.2 67.5 80.9 78.1 103.2 78 185.6 152.3 188.2 187.1 169.7 3032.5 246.6 759 348.6 199.6 111.7 183.9 153.6 164.6 157.4 145.2 2642.6 236.4 655.5 291.3 174 103.3 76.7 73.1 70.3 66.1 68.6 64.6 60.9 75.8 68.2 92 70.2
Maine 363.4 1748.6 1863 963.6 325.2 1725 908.1 665.3 2492.6 535.4 213.6 191.7 274 247.4 216.7 223.5 244.8 213.7 273 238.5 264.4 198.7 351.2 1701 1781.4 930.7 312.1 1718.4 881.8 639.3 2440.6 510.3 171.3 363.4 1748.6 1863 963.6 325.2 1725 908.1 665.3 2492.6 535.4 213.6 191.7 274 247.4 216.7 223.5 244.8 213.7 273 238.5 264.4 198.7
Massachusetts 122.2 103.7 265.3 165.8 527.8 224.1 244.3 865.3 178.7 148.6 86.4 75.5 77 83.5 84.4 88.1 63.6 67.5 81.3 72.7 91.6 71.1 118.1 103.9 268.5 186.4 600.8 231 256.4 907 186.1 153.3 87.6 121 102 259.4 163.2 518.7 318.9 250.2 813.3 275.5 144.9 91.2 75.3 76.1 82.2 83 87.2 168.1 96.1 99 92.2 113.1 75.6
New Hampshire 150.7 735.5 590.6 495.5 176.5 408.5 219.6 450.8 915.4 192.5 117.3 86.1 84.2 89.3 78.2 98.3 99 84.9 122 120.5 135.3 104.8 150.2 733 587.7 487.4 165 407.9 219.6 449.7 915 190.9 117 231.3 922.7 645.8 616.7 234.4 499.4 292 508.8 1113.3 192 149.3 135.1 132.3 124.6 107.5 127.1 121.8 111 151.7 151.1 141.1 138.2
Rhode Island 183 104.3 104.6 81.9 448.6 548.4 236.5 594.8 728.3 168.9 341.8 60.1 60.8 52.2 63.2 68.8 69.1 68.2 65.1 59.1 69.1 64.3 182.4 99 100.8 81.1 436 452.9 223.8 537.4 716.8 163.2 341.8 183 104.3 104.6 81.9 448.6 548.4 236.5 594.8 728.3 168.9 341.8 60.1 60.8 52.2 63.2 68.8 69.1 68.2 65.1 59.1 69.1 64.3
Vermont 251.3 895.8 486.3 914.6 215.3 158.4 334 929.8 1792.4 198.8 193.4 150.6 231.8 204.3 178.5 215.3 158.4 170.4 357.7 186.2 198.8 193.4 242.9 884.6 480.1 877.6 210.1 151 329.4 732.1 1782.7 187.4 179.4 262.9 696.7 744.4 963.5 313.2 255.6 443.8 897.6 873.9 359.4 204.2 184.6 275 221.3 267.6 262.4 255.6 170.1 262.1 246.4 273.2 205.6
Middle Atlantic 289 309.1 196.8 184.7 190.8 588.9 262.5 516.4 172.6 150 193.6 122.8 121.5 112.2 111.7 110.9 105 115.1 113.2 98.2 110.1 97.8 269.7 299.7 185.9 176.3 180.4 573.1 253.6 506.5 163.7 133.5 188.6 235.6 246.2 159.5 175.9 165.6 512.4 213.6 465.4 178.8 120.2 148.7 97.5 97.2 89.9 93.4 97.3 90.4 96.4 94 83.7 89.2 80.9
New Jersey 155.1 173.3 108.2 89.6 139.2 943.3 249.7 505.5 85.5 137.5 263.6 95.6 98.8 88 78.7 84.3 86.5 86.4 87.4 71 85 64 138.8 161.2 99.2 81.4 127.1 911.3 240.2 491.6 80.4 115.7 259 154.9 174.2 108.3 89.7 138.8 965.2 247.7 509.7 85.8 137.2 260.6 95.8 99.7 88.5 79 84.7 87 86.8 87.7 71.4 85.7 64.6
New York 246.8 477.3 204.8 347.7 218.8 447.4 323.7 396.5 344.5 206.1 146.4 144.8 142.8 130.1 150 131.5 142.1 136.9 145.2 132.1 160.2 137.6 245.4 483.6 207.5 354 221 455.1 327.5 402.7 350 185.1 143 122 219.9 120 203 142 407.7 171 405.5 227.3 107.2 86.5 73.8 72 70 77.6 80.3 79.8 78.9 79.2 72 82.2 76
Pennsylvania 413 353.1 265.1 207.5 222.6 355.4 252.5 564 184.5 132.3 166.2 136.3 131.5 125.9 125.4 125.2 107.5 130.5 122.8 108.4 105.1 102.1 384.6 340.9 248.3 195.1 209.6 343.6 240.3 551.3 169.1 122.1 157.4 458.1 336.1 252.7 200.4 217.8 334.2 249.1 518 176.8 126.2 156.7 132.8 131 119.2 126.1 130.2 107.8 127.7 119.3 108.7 101.4 98.8
East North Central 310.3 357.8 489.5 319.7 377 311.1 315.3 254 332.1 189.9 219.4 112.9 114.3 108.8 121.4 120.8 113.8 135.4 128.1 122.5 124.4 125.5 264.4 342.5 483.4 288.6 355.2 294.2 301.3 239.8 322.9 178.1 210.1 319.2 349.2 472.8 313.6 366.2 301.9 310.4 249.5 323.5 189.1 214.2 112.2 112.8 107.1 120.2 119.7 112.8 134.8 127.4 123 124.3 124.1
Illinois 145.8 158 210.4 90.8 127.3 335.6 116.3 143.8 120 136.1 170.9 62.1 59.1 56.2 59.1 63.6 57.1 73.8 72.5 72.8 80.7 88.4 135.2 154.7 209.9 89.2 125.6 333.9 110.3 140.5 117.1 133 168.1 144.5 156.9 208.2 90.4 127 331.1 116.2 142.9 119.7 134.9 169.3 62.1 59.4 56.2 59 63.5 57.1 73.9 72.6 73.3 80.8 88.8
Indiana 379 310 467.4 276.5 302.7 294.3 266.6 302.4 223.5 254.2 257.4 120.8 123.3 111.3 139.9 137.4 127.6 147.5 146.1 135.4 129.4 119.7 319 252.3 462.1 217.6 225.2 205.1 217.4 263 197.5 234.4 244 374 312.4 455.4 279.3 285.8 280.1 260.6 285.9 212.4 252.5 244 123.2 121.4 110.3 137.4 133.1 124.8 146.2 142 131.1 127.4 120.1
Michigan 608.6 481.7 1127.7 520.7 890.9 416.7 570.2 450.2 802.2 268.4 374.5 161 161.3 164.8 166.8 178.6 168.3 213.9 186.4 180.1 194.2 183.4 476 456.2 1131.2 519.9 882.1 414.3 565.5 448 798.2 262.6 363.7 671.5 470.4 1093.6 513.1 873.3 410.7 554.9 442.9 778.8 267.8 363.4 160.3 160.1 162.7 166 178.4 167.2 211.1 185 179.4 193.1 178.8
Ohio 205.5 511 366.6 413.6 244.9 283.6 303.8 240.3 246.8 169.5 167.5 130.1 133.3 127.1 144.1 136 129.2 145.2 150.1 141.8 127.1 139.4 187.5 500.3 336 318.9 191.7 261.5 277.4 210.4 225.1 142.1 149.8 205.4 510.5 366.2 413.2 244.2 283.4 305.2 242 248.4 174.1 172.1 130 133.2 127 144 135.9 129.2 146 151.5 143.4 128.9 141
Wisconsin 264.1 296.8 203.8 307.9 361.2 119.9 383.5 117 219.2 147.8 107.8 87.4 97.5 76.8 104.7 88 89.1 90 76.4 69.1 76.3 68.8 261.3 294.8 200.9 305.2 360.7 114 377.5 108.8 215.3 144.4 102.9 230 266.1 183 273.5 311.6 113.3 356.2 122.8 203.5 136.5 105 84.2 91.3 72.4 99.6 86.4 86.4 93 79.6 78.8 79.2 70.3
West North Central 306.8 255.3 222.7 202.8 236.4 226.8 195.2 140.2 221 222.1 179 96.6 93.9 84.6 90.1 88.9 87.6 95.4 91.1 90.3 95.1 95.6 281.8 254.7 215.6 191.7 229.3 249.4 194.8 126.1 218.7 198.9 170.1 295.3 246.9 213.8 194.8 223.6 372 187.2 139.8 210.2 200.9 167.7 98.2 94.3 85.5 89.6 88.1 87.6 95.8 92.1 90.4 93.6 91.7
Iowa 183.2 200.3 83.9 95 137.8 1066.5 126 115.4 128.1 136.5 96 79.9 84.1 60.7 78.2 80.7 85.7 83.7 92.9 103.8 96 88.1 156.7 187 75.5 80.1 115.7 1053 111 102.8 109.7 122.5 85.7 151.8 166.7 104.9 85.8 133.1 1758.7 122.8 126.8 119 117.7 96.8 78.4 89.8 70.4 75.5 79.5 87.9 89.8 92.6 95.2 92 85.5
Kansas 192.8 289.8 287.1 178.3 346 106.6 241.2 151.3 368.6 169.1 350.5 96.3 104 101.8 108.1 113.9 91.8 117.2 105.6 130.9 132.3 131.5 177.5 277.9 274.4 157.9 327.9 100.7 266.1 140 359.5 151.4 242.1 196.1 285.6 283.1 178.8 341.5 107.1 240 154.8 364.8 167.8 347.3 96.9 103.6 101.7 108.1 113 92.3 117.3 108.9 131 131.9 130.7
Minnesota 182 222.4 127.1 275.2 121 128 148.9 128.1 129.8 308.9 160.8 93.2 91.5 72.8 81 81.7 84.7 79.9 87.8 71.7 88.6 79.4 168.6 222.3 123.6 270.3 115.7 124.4 137.6 120.2 129.1 302.6 159.9 182.4 219.6 126.4 273.7 120.9 127.6 150.1 127.4 129.7 301.2 154.5 93.7 92.2 73.4 82.2 82.5 85.6 81.2 87.6 73.5 87.7 77.8
Missouri 466 212.6 379 149.5 267.9 154.1 261 151.2 307.2 215.4 164.9 115.9 106.6 104.4 97 97.8 96.7 113.6 91.8 90.8 86.6 98.3 435.3 206 391.2 144.2 265.6 159.8 372.9 174.1 445.9 149.8 249.2 457.2 224.3 371.8 148 259.7 152.6 255.2 149.6 305.8 205.7 171.1 116.3 106 106.7 97 97.3 95.1 112.8 94.6 93.3 86.7 98.2
Nebraska 542.8 697.8 69.4 73 556.9 115.4 78.9 185.7 160.7 63.1 67.9 86.1 69.8 55.6 56.2 59.9 67.4 59.2 76.8 72.5 49.2 50.2 530.7 696.7 66.4 71.1 555.3 96.1 54.9 96.1 110.4 52.2 49 547.3 641.7 72.6 82.1 516 113.4 84 188.2 154.3 83.6 86.2 116.3 73.6 56.8 62.3 60.8 68.8 62.4 74.2 69.9 52 51.9
North Dakota 212.1 102.7 262.3 677.6 101.6 123.3 132.6 111.2 91.2 152.8 113.6 75.2 87 93.9 102.8 88.4 86.8 77.1 96 70.4 110.4 101 161.2 82.2 259 789.8 77 113.3 131.6 83.8 81.8 147.1 80.2 203.5 99.1 208.6 559.6 85.4 101.1 107.1 94.4 85.9 123.8 113.9 72.8 84.2 89.9 99.6 85.9 82.5 74.3 95.2 67.5 108.3 99
South Dakota 284.2 85.6 78.1 338.3 101.3 97.4 311.4 93.1 101.7 255.8 135 63.8 61.5 63.9 126.3 61.9 71.5 108.2 73 80.3 84.4 107.6 249.2 67.5 62.2 244.7 78.2 86.7 250.6 75.7 87.7 119.1 98.1 268.5 84.7 77 327.1 105.6 97.3 295 92.1 100.6 252.2 133.3 61.4 62.1 63.2 123.5 62.7 73.2 106.7 74 81.2 83.8 106.5
South Atlantic 208 1405.8 240.4 615.8 191.2 321.4 206 639 1241.6 576.5 195.4 121 133.1 119.7 127.9 113 122.6 124.2 135.3 122.4 129.3 123.2 186.7 1352.3 211.7 635 184.8 283.3 196.5 630.8 1237.8 559.7 183.5 206.9 1247.3 227.4 663.7 192.8 307.2 205.6 615 1118.6 518.9 185.6 119.3 129.3 117.5 125.6 112.1 121.5 123.7 131.9 119.9 128.6 119.3
Delaware 103.9 117.9 109.7 79.8 64.3 271.9 102 136.2 154.6 148.7 191.4 74.6 66.8 61.2 66.4 64.3 84.9 74.2 73.8 83.3 102.3 115.5 106 118.9 112.1 80.8 64.8 276.1 102 135.3 153.1 147.3 180 102.5 116.1 108.2 79.8 64.3 271.9 101.6 135.9 153.9 149.1 189.9 73.7 65.9 60.4 66.4 64.3 84.9 74 74.1 83.2 103.2 114.7
District of Columbia 50.3 32.6 71.9 33.7 52 44 77 109.2 57.5 115 112.4 33.9 26.4 33.3 26.3 42 39 55 52.9 57.5 115 112.4 50.3 32.6 71.9 33.7 52 44 77 109.2 57.5 115 112.4 50.3 32.6 71.9 33.7 52 44 77 109.2 57.5 115 112.4 33.9 26.4 33.3 26.3 42 39 55 52.9 57.5 115 112.4
Florida 72.7 1487.6 172.3 1011.3 82.9 200.4 88.9 305.5 2693.2 388.2 86.1 65.4 66.7 69.4 69.8 65.3 72.5 74 79.6 76.7 82.7 79.3 69.5 1485.6 160 1012.6 77.2 194.9 83.2 302.8 2666.6 387 80.3 70.5 1321.5 160.1 1146.3 80.8 188.7 89 325.4 2504.2 352.1 85.4 63.4 66.4 69.2 69.7 64.8 73 74.2 77.4 78.6 81.8 77.9
Georgia 268.9 1208.1 342.7 212.4 140.5 521.7 149.8 230.7 1030.8 424 248.2 145.5 211.4 133.4 129.3 123.8 130.5 125.8 118.8 115.2 120.6 108.5 236.4 768 300.3 185.2 122.9 509.8 117.2 238.9 906.4 177.8 355.1 269.3 1229.1 349.2 264.3 145.8 509.9 152.3 373.2 1049.2 424.4 243.7 147 212.3 136.8 134.6 129.4 133.3 127.7 122.5 122.1 134.5 109.1
Maryland 178.3 118.1 166.2 260 127.6 113.8 143.8 330.4 103.1 120.7 117.2 78.9 75.1 66.9 84.2 80.2 76.2 89 93.6 81.5 104.5 100.2 175.5 116.7 156.1 224.6 125.1 109.2 139.3 328.4 100.7 115.5 113.8 178.3 118.1 166.2 259.1 127.1 120.3 141.3 337.1 116.5 120.3 124.4 78.9 75.1 66.9 84.2 80.2 80.9 90.6 95 85.6 105.3 109
North Carolina 191.5 1518.1 262.5 486 215.2 437.4 287.5 1877.6 282.2 857.5 220.8 142.1 143.9 156.4 150.7 125.9 146 147 168 151.1 152.1 131.3 177.5 1475 249.9 423.1 207.3 414.4 266.1 1670.3 253.4 852.6 200.5 191.7 1441 252 456.3 205.5 417.9 287.6 1761.5 264 824.6 210.6 140.7 141.4 153.5 148.6 123.6 143.7 146.2 162.3 146.3 148.6 128.2
South Carolina 153 3155 169.8 302.4 122.9 332.6 338.2 488.6 386.9 1698.8 234.3 103.4 115.9 126.5 114.8 101.3 121.3 106.3 138.8 119.4 122.1 121.9 137.3 2972.9 140.4 274.4 106.2 308.9 319.8 463.6 371.1 1663.3 195.3 151.1 3136.5 167.2 301.1 120.9 323.8 326.5 470.5 372.8 1645.4 224.1 103.6 117.8 126.1 114.8 100.7 119.9 105.6 137 117.8 121.3 119.3
Virginia 763.1 962.1 292.8 1108.2 798.2 337.7 478 1133.7 279.2 317.6 249 249.6 245.1 239.9 342.3 262.7 250.6 285.4 307.8 218 219.7 208.5 735.7 911.2 280.6 1103.6 793.3 308.6 439.2 1099.9 232.1 302.8 231.8 445.7 418.3 221.1 593.9 434.4 308.6 309 507.4 192.9 237.7 203.5 177 166.4 159.3 187.5 164.9 165.3 182.1 187.8 142.2 164.8 148
West Virginia 1013.2 1165.5 751.5 1003.2 1117.2 604.2 755.2 739.7 690.8 743.4 814.6 498.1 486.1 385.7 543.6 451.6 467.9 471.3 513.1 451.8 439.1 458 876.2 1067.4 700.4 850.9 1002 538.6 691.2 676.3 618 582.9 771.6 1013.2 1165.5 751.5 1003.2 1117.2 604.2 755.2 739.7 690.8 743.4 814.6 498.1 486.1 385.7 543.6 451.6 467.9 471.3 513.1 451.8 439.1 458
East South Central 341.8 423.7 864.3 392.5 573.8 825.2 269.4 314.9 427.7 216 272.4 183.1 176.3 186.5 187.8 152.6 147.6 160.3 156.3 144.4 147.9 154.5 320 423 876.2 393 582 798.5 266.7 299.8 406 210.9 255.7 353.2 415.7 715.5 349.2 513.1 902.2 269.5 290.6 389.2 203.1 239.7 170.4 162.8 168.7 175.5 147.5 146.2 156 147.4 140.5 142.1 140.5
Alabama 270.2 197.7 400.2 231.3 175.7 3320.4 183.7 457.8 242.4 174.2 274.7 127.3 120.8 189.5 198.4 110.9 144.6 106.8 136.8 130.8 140.1 167.9 260.1 189.6 380.2 230.1 215.8 3440.8 158.4 195.4 199.5 161 224.2 371.6 279.4 294.2 210.1 234.9 1743.5 174.1 308 314.5 174.8 212.3 114.6 117.8 120.2 138.8 119.1 127.3 120.2 120.6 115.9 115.8 124.9
Kentucky 396.3 537.7 861.5 345.5 698.8 284.7 204.2 407.5 193.3 194.3 245.8 171.1 145.7 140.6 151.5 130.3 125.3 148.9 146.7 120 139 140.4 380.2 520.1 841.1 328.1 630.1 275 192.1 399.8 173.9 183.9 232 408.2 648.3 868.2 345.8 707.8 282.4 203.3 406.2 194.1 191.9 243.9 173.1 153.3 143.4 151.7 129.8 125.1 148.5 146.7 120.1 137.4 139.7
Mississippi 524.4 607.3 877.8 455.9 1189.8 1611.7 466.1 271.6 580.2 276.3 363.3 318.6 279 266.6 243.3 224.5 203.9 214.3 209.7 205.5 179.9 227.7 601.8 693.8 991.9 519.9 1419.2 1558.2 537.3 310.2 588 302.7 316.9 501.2 567.1 802.1 448.5 1134.4 1496.7 536.5 267.5 566.8 277.4 310.4 305.5 266.3 252.8 246.7 220.6 211.3 220 211.9 211.3 187.3 197.5
Tennessee 227.7 289.3 926.9 428.3 316.8 618.4 252.9 217.5 621.5 212.9 257.5 146.9 169.9 192.7 194.1 151.7 144.5 160.4 145.6 141.7 141.6 134.6 178.3 283.3 933.4 425.9 299.5 601.1 251.6 213.1 603.1 206.4 256.3 229 278.6 857.9 404.5 302.7 588 266.9 199.8 512.8 197.2 222.4 150.6 159.5 186.1 188.3 149.4 148.4 161.4 139.6 142.4 144.4 124.9
West South Central 252.2 1268.9 685.6 242.8 1893.7 1018.2 309 203.4 455.6 265.6 318 164.9 164.2 163.3 178.3 186.6 153.5 162.3 150.3 144.8 145.8 155.3 242.1 1295.8 671.2 238.8 1400.7 1044.4 286.5 197.5 425.5 260.2 295.2 253.1 1050.4 579.1 237.4 1456.9 1101.8 330 194.6 440 260.6 343.2 146.4 142.3 142 154.9 161.2 171.3 142.4 134.6 145.7 145.1 154.9
Arkansas 474.5 527.8 915.3 437.5 308.4 771.6 451.2 330.9 405.6 400.5 326.2 211.7 201.9 230.7 279.6 199.4 210.6 228 214.1 176 213.7 222.6 459.8 377.8 879 427.2 286.2 727.9 376.1 325.8 383 404.8 324.8 464.8 509.1 911.2 415.5 315.9 708.4 437.7 322.9 395.4 397.3 306.7 206.2 194.6 221.7 274.7 195.9 204.7 221.9 210 178.3 208.3 216.8
Louisiana 271.6 630.6 663.2 323.8 5868.8 4331.9 521.2 285.7 423.5 442.6 411.9 229.7 215.9 199.3 252.2 265 217.9 223.5 214.2 196.9 190.1 199 246.5 603 633.7 306.6 5836.4 4204.5 441.5 260.7 400.9 429.8 392.1 269.5 727.5 584.2 304 4811.1 3624.4 472.3 276 390.6 392.9 361.1 218.9 206 195 246.1 228.2 216.4 208.1 206.1 192.1 185.7 188.9
Oklahoma 297 220.7 1339.4 165.6 165.9 565.1 186.2 154.7 194 326.3 597 127.2 121.3 123.8 122.4 126.2 139.3 138.4 113.9 118 122.3 123.1 262.9 188.1 1012.7 141.7 132.9 475.5 153.5 135.5 147.8 316.1 346 285.5 270.9 896.6 195.6 179.4 2922 334.9 175.6 291.2 316.6 831.4 144.8 119.6 139.3 144.2 146.5 144.3 139 127.2 140.6 149.5 166.8
Texas 211.1 1614.3 583.1 204.6 1496.4 419.4 254.8 170.4 486.8 216.8 279.8 150 153.4 150.3 153.7 174.7 132.7 141.4 130.2 135.1 132.7 143 203.7 1724.6 604.3 202.6 683.7 426.3 248.4 165.9 457.5 208.7 270.2 223.5 1270.6 496.2 212 1175.3 432.7 290.7 167.2 477.6 210.8 271.7 128.7 129.4 124.7 127.5 147.4 163.7 121.8 113.7 133.8 129.3 139.1
Mountain 169.6 176.3 117.9 153.2 166.3 178.8 131.1 119 131.7 131.3 131.7 101.6 102.4 90.4 95.4 95.5 87.3 91.2 88.6 95.6 90.6 95.2 162 169.5 101.2 123.5 138.1 179.7 125.3 106.8 125.2 134 128.8 171.6 181.3 120.2 155.9 174.8 181.6 134.4 125.5 161.4 136.5 148.6 103 105.8 91.7 98.5 99.7 90.7 94.5 91.6 98.1 91.7 100.5
Arizona 68.7 83.6 103.8 136.9 101.9 70.6 83.3 111.6 89.5 86.9 89.6 61.3 69.8 66.9 69.1 69.3 62 64 57.6 50.8 67.9 66 69.2 75.8 88.7 103.7 91 65 71.6 94.3 82.9 85.9 87.4 69.9 87.5 106.8 139.7 106.2 71.9 85.8 114.6 90.7 86.3 90.9 62.6 72 69.3 72.3 71.7 63.6 67.2 61.1 51.4 67.5 66
Colorado 272.5 257 100.2 143.7 185.4 136.4 184.5 99.9 132.7 154.5 107.9 117.1 118.9 89.2 96.9 104.8 83.4 84.3 86.5 80.2 83.5 83.9 262.4 251.2 96.2 138.2 168.4 131.5 181.9 96.5 122.1 147.2 103 269.9 255.1 99.2 141.5 180.9 134.2 180.5 113.3 228.5 165.5 110.1 116.7 119 88.4 96.2 102.6 82.6 83.6 85.5 78.6 82.5 83.4
Idaho 291.4 204.4 134.4 167.4 438 286.5 155.4 169.9 253.9 183 238.1 143.6 152.5 121.8 144.5 137.5 158.1 132.3 140.8 223.9 157.6 193.2 165.7 150.5 95.9 112.7 223.8 173.6 122.9 155.7 239 174 204.2 306.2 232.8 137.5 180.7 475.2 324.9 166.6 174.1 313.8 197.2 465.3 149 174 119.4 158.3 162.1 180.7 143.9 144.9 248.5 166 266.4
Montana 286.4 341.7 113.9 224.7 251.7 275.3 165.8 135.4 218.9 155.7 295.4 135.4 152.3 113.9 139.6 142.6 136 121.7 118.3 160.8 128.8 143.5 265.7 298.1 93.9 187.7 211.2 240.7 138.9 107.4 209.1 110.7 284.7 288.1 351.5 118.7 225.6 309.9 271.3 169.3 142.7 215.4 160.7 287.9 137.2 156.6 117.1 146.1 146 140.9 127 118 161.4 129.9 142.3
Nevada 127.8 158.9 138.7 195.1 102.4 73.3 87 126.2 114.4 95.7 107 100.7 63.8 81.2 77 69.6 55.3 77.5 76.7 87.7 73.7 55.4 56.7 116.7 96.9 424.3 6.8 54.4 92 93.3 82.8 457 153.8 127.8 158.9 138.7 195.1 102.4 73.3 87 126.2 114.4 95.7 107 100.7 63.8 81.2 77 69.6 55.3 77.5 76.7 87.7 73.7 55.4
New Mexico 161.9 272.6 156 175.2 204.3 140.1 158.2 132.9 121.2 130.4 108.8 143 152 123.7 125.4 120 113.6 121.5 123.9 114.5 102.2 95.6 149.2 255.4 139 134.6 190.9 136.4 141.6 118.1 105.1 103.3 53.3 172 278.8 168.9 182.6 221.2 148.2 170.2 138.3 140.6 136.3 122.3 149.3 156.5 132.3 129.1 131.7 118.8 128.4 126 115.7 104.1 99.2
Utah 117 115.4 127.7 108.7 113.4 591.8 144.4 115.5 142.1 193.4 203.2 97.9 105 108.5 96.6 98 100.9 110.8 115.5 116.3 106.1 156.4 109.2 108.9 119.9 103.4 114.9 614 140.5 119.8 139.1 206.4 217.6 117.5 119.8 127.1 111.3 116 575.1 146.2 125.3 139 190.1 199.6 99.1 106.7 109.8 100.4 100.9 101.5 115.4 126.6 114.6 105.6 155.5
Wyoming 224.2 137.8 121.4 159 167.9 293.4 166.8 125.4 201.4 180.2 181.3 111.3 116 102.6 116.1 115.6 105.1 134 107.1 171.9 135.6 163.3 205.6 128.6 106.4 157.3 165.1 263.5 151.1 116.9 190.1 172.5 159.4 224.2 137.8 127 170.1 170.5 289.7 164.5 136.7 217.6 192.5 184.6 104.7 109.1 96 113 116.3 111.3 130 117.6 191.1 150.2 165.7
Pacific Contiguous 357.1 371.7 299.1 246.2 483.8 282.8 528.9 200.9 258.5 147.8 188.1 136.7 159.6 147.8 152.8 145.5 110.4 106.1 101 108.8 103.5 97.2 326.3 380 287.3 232.3 421.8 266.3 522.5 159.8 217.7 141.4 170.5 344.9 365.4 294.2 242.3 464.7 270.2 507.7 200 244.7 145.3 204.8 133.6 155.8 144.6 148.8 141.6 107.7 104.2 98.5 106.3 100.5 95.5
California 358.3 285 352.5 202.4 335.2 280.7 610.7 199.4 243.2 119.9 120.4 139.6 164.4 157.1 156.5 148 107.6 106.7 99.5 104 100.8 93.2 331.1 306.3 351.5 195.3 266 266 615.7 150 190.2 119.7 123.9 344.6 279.6 346.6 198.5 325.2 267.1 587.6 195.2 233.4 117.1 118.4 135 158.2 152 150.5 142.7 104 103.9 96 100.9 98.7 91.9
Oregon 302.4 579.3 122.9 325.2 1588.3 325.9 230.4 111.4 314.5 233.5 225.9 100.2 124.1 103.5 121 113.9 103.4 101.6 90.3 111.6 101.1 102.2 287.4 547 115.9 304 1500.8 317.9 224.4 103.6 315.6 175.8 220.5 297.4 591 126.9 322.9 1489.2 311 221.6 113.1 295.7 240.3 212.6 103.5 130.9 108 123.4 116.5 104.4 103.6 92.5 111.2 100.5 102.1
Washington 381.6 643.5 153.8 403.6 554.5 268.6 310.9 265.3 311.3 258 620.9 143.8 157.3 129.8 153.5 151.1 126.9 105.8 115.5 135.8 121.3 120 328.3 587.2 113.4 345.6 468.6 237.8 292.2 244.2 301.3 236.7 417.2 372.5 623.5 151.7 395.3 527.3 261.6 300 270.4 269.5 226 646.3 144.3 158.6 130.6 154.9 150.4 127 105.6 114 129.9 109.3 110.9
Pacific Noncontiguous 538.4 329.8 456.2 891.3 537.3 174 218 250.2 215.4 149.1 332.4 238.2 195.4 325.7 334.9 230.6 140.8 134.1 163.9 119.3 116.8 119.3 568.7 307.3 472.5 820.6 501.7 157.1 209.3 238.3 225.5 153.3 782.3 378.8 323 448.4 330.8 285.5 174.3 226.2 243.9 216.6 151.7 361.1 207.4 213.7 184.6 162.9 145.5 140.8 134.1 163.9 119.3 123.6 127
Alaska 563.5 323.2 499.4 891.3 537.3 256.9 279 339.3 149.2 196.6 657.8 242.7 192.4 325.7 334.9 230.6 245.5 184.1 193.1 136.9 176.9 155.1 685.3 371 472.5 820.6 501.7 251.4 317.1 359.2 159.6 272.5 782.3 540.9 327.1 374.8 575.2 379.1 268 280.1 335.3 152.7 192.5 605.4 242.7 192.4 325.7 334.9 230.6 245.5 184.1 193.1 136.9 176.9 155.1
Hawaii 335.4 382.6 248.8     123.8 182.1 198 254.3 109.3 152 202 219.3       97.3 113.4 151.9 112 83.2 99.4 0 0       118 164.8 188.7 252.7 98.9   282.1 320.6 491.8 187.2 229.7 118.7 195.2 191.4 252.3 128.7 266.1 187.5 225.6 148.6 105.9 115.7 97.3 113.4 151.9 112 103.9 116.7
U.S. Total 269.2 662.6 366.6 333 475.8 456.1 295.5 349.2 505.9 268.4 209 125.3 131.6 123.9 131.1 125.7 116 122.2 121.4 117 119.8 117 246.8 646.1 357.7 324.7 404.5 460.5 289.1 338.5 489.6 257 198.2 262.6 611.3 342 335.5 440 491.9 284.6 346.4 473.1 249.2 205 120.8 126 118.4 125.7 121.5 119 118.6 117.2 114.4 116.9 113.1

SAIDI = System Average Interruption Duration Index. It is the minutes of non-momentary electric interruptions, per year, the average customer experienced.
IEEE refers to the IEEE 1366-2003 or the IEEE 1366-2012 standard. Any method combines data from utilities that use IEEE standard with data from utilities that do not.
For utilities using the IEEE method, a Major Event Day is any day that exceeds a daily SAIDI threshold called Tmed. Tmed is a duration statistic calculated from
daily SAIDI values from the past five years. For utilities not using IEEE methods, Major Events are self-determined by the reporting utility.
Loss of Supply Removed excludes outages due to loss of supply from the high-voltage/bulk power system.
For a five minute video explanation of these metrics, go to https://youtu.be/oVH9L0fCMTU.
Source: U.S. Energy Information Administration, Form EIA-861, Annual Electric Power Industry Report.

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