Official EIA-861 State Grid Summary
Tennessee Power Outage Risk, Electric Utilities & Generator Sizing
Tennessee households average 4.6 hrs/yr (279 minutes/year) of total blackout duration across 2.00 outages/year (Reliability Grade C — Elevated Storm Risk), with an average residential electricity rate of 12.42 ¢/kWh.
Interactive Appliance Load Calculator
⚡ Home Backup Wattage Sizer for Tennessee
Check the appliances you need to keep running during a blackout. We calculate your continuous running watts, highest motor starting surge, and 20% NEC safety headroom automatically.
Live Sizing Result (+20% Headroom)
3,000 W
Recommended Minimum Generator / Inverter Rating
1,250 WContinuous Running
2,250 WPeak Motor Surge
Top Cities & Towns in Tennessee
Nashville→Memphis→Knoxville→Chattanooga→Clarksville→Murfreesboro→Franklin→Johnson→Jackson→Hendersonville→Smyrna→Spring Hill→Kingsport→Bartlett→Gallatin→Collierville→Lebanon→Cleveland→Columbia→Brentwood→Mount Juliet→La Vergne→Germantown→Cookeville→Oak Ridge→Morristown→Maryville→Bristol→Shelbyville→Farragut→East Ridge→Tullahoma→Springfield→Sevierville→Goodlettsville→Dickson→White House→Greeneville→Dyersburg→Nolensville→Arlington→Athens→Elizabethton→Lakeland→McMinnville→Portland→Alcoa→Manchester→Lewisburg→Soddy-Daisy→Crossville→Hartsville/Trousdale County→Lawrenceburg→Red Bank→Lenoir→Collegedale→Millington→Martin→Union→Oakland→Atoka→Fairview→Paris→Clinton→Winchester→Brownsville→Thompson's Station→Jefferson→Signal Mountain→Covington→Milan→Pulaski→Lexington→Humboldt→Dayton→Savannah→Ripley→Church Hill→La Follette→Fayetteville→Greenbrier→Newport→Loudon→Munford→Lynchburg, Moore County→Jonesborough→Sweetwater→Henderson→Pigeon Forge→Millersville→Kingston→Harriman→Erwin→Dunlap→Lafayette→Ashland→Rockwood→Medina→Pleasant View→McKenzie→Mount Carmel→Smithville→Madisonville→Bolivar→Sparta→Mount Pleasant→Coopertown→Rogersville→Selmer→Whiteville→Huntingdon→Oak Hill→Forest Hills→Harrogate→White Bluff→Waverly→Louisville→Hohenwald→Trenton→Algood→
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Electric Utilities Operating in Tennessee (EIA Form 861)
| Utility Name | Ownership | Customers | Outages/Yr | Annual Outage Time | Avg Restoration | Residential Rate |
|---|---|---|---|---|---|---|
| Nashville Electric Service (#13216) | Municipal | 417,640 | 1.00x/yr | 0 min (0.0h) | 100 min | 13.47 ¢/kWh |
| City of Memphis - (TN) (#12293) | Municipal | 380,286 | 1.95x/yr | 327 min (5.5h) | 168 min | 12.16 ¢/kWh |
| Middle Tennessee E M C (#12470) | Cooperative | 307,370 | 0.93x/yr | 49 min (0.8h) | 53 min | 11.76 ¢/kWh |
| Knoxville Utilities Board (#10421) | Municipal | 193,707 | 1.86x/yr | 352 min (5.9h) | 189 min | 12.54 ¢/kWh |
| City of Chattanooga - (TN) (#3408) | Municipal | 164,417 | 1.36x/yr | 194 min (3.2h) | 142 min | 12.32 ¢/kWh |
| Volunteer Electric Coop (#19898) | Cooperative | 104,387 | 5.80x/yr | 685 min (11.4h) | 118 min | 12.19 ¢/kWh |
| Cumberland Elec Member Corp (#4624) | Cooperative | 100,585 | 2.45x/yr | 220 min (3.7h) | 90 min | 12.99 ¢/kWh |
| City of Clarksville - (TN) (#3704) | Municipal | 75,953 | 2.16x/yr | 205 min (3.4h) | 95 min | 12.77 ¢/kWh |
| Johnson City - (TN) (#9777) | Municipal | 72,205 | 2.20x/yr | 658 min (11.0h) | 299 min | 12.41 ¢/kWh |
| Duck River Elec Member Corp (#5399) | Cooperative | 71,342 | 2.46x/yr | 276 min (4.6h) | 112 min | 12.50 ¢/kWh |
| City of Lenoir - (TN) (#10906) | Municipal | 62,455 | 2.00x/yr | 279 min (4.6h) | 139 min | 11.95 ¢/kWh |
| Upper Cumberland E M C (#19574) | Cooperative | 45,560 | 2.00x/yr | 279 min (4.6h) | 139 min | 12.77 ¢/kWh |
| Southwest Tennessee E M C (#17694) | Cooperative | 43,750 | 2.00x/yr | 279 min (4.6h) | 139 min | 12.90 ¢/kWh |
| Appalachian Electric Coop (#727) | Cooperative | 43,709 | 3.67x/yr | 927 min (15.4h) | 253 min | 12.93 ¢/kWh |
| Kingsport Power Co (#10331) | Investor-Owned | 43,159 | 1.80x/yr | 1028 min (17.1h) | 571 min | 12.84 ¢/kWh |
| Sevier County Electric System (#16949) | Municipal | 35,626 | 2.42x/yr | 330 min (5.5h) | 136 min | 11.33 ¢/kWh |
| Sequachee Valley Electric Coop (#16930) | Cooperative | 33,206 | 3.09x/yr | 301 min (5.0h) | 97 min | 12.97 ¢/kWh |
| City of Greeneville - (TN) (#7625) | Municipal | 32,388 | 3.26x/yr | 791 min (13.2h) | 243 min | 11.90 ¢/kWh |
| City of Jackson - (TN) (#9612) | Municipal | 31,856 | 1.08x/yr | 115 min (1.9h) | 107 min | 11.97 ¢/kWh |
| Columbia Power System - (TN) (#3855) | Municipal | 31,166 | 2.77x/yr | 174 min (2.9h) | 63 min | 12.00 ¢/kWh |
| City of Dickson (#5148) | Municipal | 30,808 | 3.39x/yr | 310 min (5.2h) | 92 min | 11.65 ¢/kWh |
| Fort Loudoun Electric Coop (#6608) | Cooperative | 30,527 | 2.85x/yr | 472 min (7.9h) | 165 min | 12.11 ¢/kWh |
| Meriwether Lewis Electric Coop (#12330) | Cooperative | 30,319 | 1.85x/yr | 4 min (0.1h) | 2 min | 13.68 ¢/kWh |
| Caney Fork Electric Coop, Inc (#2960) | Cooperative | 29,631 | 1.00x/yr | 536 min (8.9h) | 100 min | 12.89 ¢/kWh |
| City of Bristol - (TN) (#2247) | Municipal | 29,622 | 2.78x/yr | 546 min (9.1h) | 196 min | 10.81 ¢/kWh |
| City of Cleveland - (TN) (#3758) | Municipal | 29,331 | 0.89x/yr | 61 min (1.0h) | 68 min | 12.53 ¢/kWh |
| Gibson Electric Members Corp (#7174) | Cooperative | 29,331 | 2.71x/yr | 312 min (5.2h) | 115 min | 13.00 ¢/kWh |
| City of Alcoa Utilities (#577) | Municipal | 28,183 | 2.00x/yr | 279 min (4.6h) | 139 min | 12.21 ¢/kWh |
| City of Clinton - (TN) (#3812) | Municipal | 26,230 | 1.23x/yr | 264 min (4.4h) | 215 min | 12.99 ¢/kWh |
| Holston Electric Coop, Inc (#8764) | Cooperative | 25,773 | 3.45x/yr | 892 min (14.9h) | 259 min | 13.05 ¢/kWh |
| Tri-County Elec Member Corp (TN) (#19162) | Cooperative | 24,824 | 4.51x/yr | 390 min (6.5h) | 87 min | 12.33 ¢/kWh |
| City of Elizabethton - (TN) (#5763) | Municipal | 23,344 | 2.00x/yr | 279 min (4.6h) | 139 min | 11.82 ¢/kWh |
| City of Gallatin - (TN) (#6923) | Municipal | 23,204 | 1.45x/yr | 164 min (2.7h) | 113 min | 11.78 ¢/kWh |
| Powell Valley Electric Coop (#15293) | Cooperative | 21,147 | 4.29x/yr | 499 min (8.3h) | 116 min | 11.49 ¢/kWh |
| Maryville Utilities (#11789) | Municipal | 19,971 | 0.69x/yr | 79 min (1.3h) | 113 min | 11.28 ¢/kWh |