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Official EIA-861 State Grid Summary

South Carolina Power Outage Risk, Electric Utilities & Generator Sizing

South Carolina households average 52.3 hrs/yr (3136 minutes/year) of total blackout duration across 2.37 outages/year (Reliability Grade F — Severe Outage Risk), with an average residential electricity rate of 14.18 ¢/kWh.

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Interactive Appliance Load Calculator

⚡ Home Backup Wattage Sizer for South Carolina

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
Recommended Tier

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Top Cities & Towns in South Carolina

Charleston→Columbia→North Charleston→Mount Pleasant→Rock Hill→Greenville→Summerville→Goose Creek→Greer→Sumter→Florence→Myrtle Beach→Spartanburg→Hilton Head Island→Fort Mill→Bluffton→Aiken→Anderson→Mauldin→Conway→Simpsonville→Easley→North Augusta→Lexington→Greenwood→Hanahan→North Myrtle Beach→Clemson→West Columbia→Moncks Corner→Port Royal→Beaufort→Tega Cay→Hardeeville→Fountain Inn→Cayce→Orangeburg→Gaffney→James Island→Irmo→Newberry→Forest Acres→York→Lancaster→Laurens→Seneca→Travelers Rest→Camden→Georgetown→Union→Clinton→Bennettsville→Clover→Hartsville→Lyman→Blythewood→Dillon→Marion→Darlington→Lake→Hollywood→Walterboro→Central→Batesburg-Leesville→Chester→Woodruff→Cheraw→Abbeville→Duncan→Barnwell→Belton→Isle of Palms→Surfside Beach→Williamston→Walhalla→Edgefield→Honea Path→Mullins→Manning→Ridgeland→Wellford→Pendleton→Inman→Liberty→Winnsboro→Burnettown→Pickens→Denmark→Saluda→Kingstree→Bamberg→Bishopville→Williston→Loris→Landrum→Springdale→Ravenel→Hampton→Pacolet→Andrews→Pageland→Allendale→Westminster→South Congaree→New Ellenton→Pine Ridge→Cowpens→Johnston→Seabrook Island→Timmonsville→Folly Beach→Ninety Six→Kershaw→Kiawah Island→McColl→McCormick→Blacksburg→Sullivan's Island→Chapin→Great Falls→

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Electric Utilities Operating in South Carolina (EIA Form 861)

Utility NameOwnershipCustomersOutages/YrAnnual Outage TimeAvg RestorationResidential Rate
Dominion Energy South Carolina, Inc (#17539)Investor-Owned696,3852.52x/yr1908 min (31.8h)757 min14.59 ¢/kWh
Duke Energy Carolinas, LLC (#5416)Investor-Owned568,5863.04x/yr7804 min (130.1h)2567 min13.99 ¢/kWh
South Carolina Public Service Authority (#17543)State185,5290.69x/yr58 min (1.0h)85 min11.38 ¢/kWh
Duke Energy Progress - (NC) (#3046)Investor-Owned143,7131.71x/yr263 min (4.4h)154 min14.88 ¢/kWh
Berkeley Electric Coop Inc (#1613)Cooperative115,1171.59x/yr293 min (4.9h)184 min14.93 ¢/kWh
Horry Electric Coop Inc (#8786)Cooperative86,7261.85x/yr133 min (2.2h)72 min13.23 ¢/kWh
Palmetto Electric Coop Inc (#14398)Cooperative68,3382.44x/yr631 min (10.5h)259 min12.79 ¢/kWh
Blue Ridge Electric Coop Inc - (SC) (#1890)Cooperative67,5531.00x/yr5291 min (88.2h)100 min18.94 ¢/kWh
York Electric Coop Inc (#21002)Cooperative65,2442.20x/yr981 min (16.3h)446 min12.65 ¢/kWh
Laurens Electric Coop, Inc (#10768)Cooperative58,4382.84x/yr8310 min (138.5h)2926 min14.66 ¢/kWh
Mid-Carolina Electric Coop Inc (#12462)Cooperative56,4633.22x/yr3915 min (65.3h)1217 min14.88 ¢/kWh
Aiken Electric Coop Inc (#162)Cooperative49,4601.00x/yr7941 min (132.4h)100 min15.53 ¢/kWh
City of Rock Hill - (SC) (#16195)Municipal36,4922.12x/yr605 min (10.1h)286 min12.55 ¢/kWh
Santee Electric Coop, Inc (#16606)Cooperative35,2351.00x/yr442 min (7.4h)100 min14.74 ¢/kWh
Fairfield Electric Coop, Inc (#5929)Cooperative32,3972.80x/yr988 min (16.5h)353 min14.35 ¢/kWh
MPD Electric Cooperative (#66073)Cooperative31,8741.63x/yr213 min (3.5h)131 min10.94 ¢/kWh
Black River Electric Coop, Inc - (SC) (#1763)Cooperative30,6102.00x/yr228 min (3.8h)114 min13.47 ¢/kWh
Greer Commission of Public Wks (#7654)Municipal24,8930.48x/yr53 min (0.9h)110 min11.80 ¢/kWh
Broad River Electric Coop, Inc (#2212)Cooperative23,1401.00x/yr6146 min (102.4h)100 min15.91 ¢/kWh
Lynches River Elec Coop, Inc (#11355)Cooperative21,3633.20x/yr518 min (8.6h)162 min15.71 ¢/kWh
City of Orangeburg - (SC) (#14164)Municipal20,6392.84x/yr733 min (12.2h)258 min15.49 ¢/kWh
Tri-County Electric Coop, Inc (SC) (#14175)Cooperative17,6724.09x/yr1042 min (17.4h)255 min18.51 ¢/kWh
Easley Combined Utility System (#6709)Municipal15,7721.51x/yr725 min (12.1h)480 min12.81 ¢/kWh
Edisto Electric Coop, Inc (#5644)Cooperative15,4211.00x/yr2355 min (39.2h)100 min16.40 ¢/kWh
Little River Electric Coop Inc (#11019)Cooperative15,3722.37x/yr3136 min (52.3h)1326 min16.37 ¢/kWh
Newberry Electric Coop, Inc (#13524)Cooperative12,9705.24x/yr7940 min (132.3h)1515 min16.32 ¢/kWh
Coastal Electric Coop, Inc - (SC) (#3844)Cooperative12,2332.37x/yr3136 min (52.3h)1326 min16.37 ¢/kWh
Greenwood CPW (#7646)Municipal11,7530.61x/yr66 min (1.1h)108 min9.04 ¢/kWh
City of Camden (#2890)Municipal11,6732.37x/yr3136 min (52.3h)1326 min15.82 ¢/kWh
City of Seneca - (SC) (#16921)Municipal8,1542.37x/yr3136 min (52.3h)1326 min12.96 ¢/kWh
City of Union - (SC) (#19431)Municipal6,9882.37x/yr3136 min (52.3h)1326 min14.43 ¢/kWh
City of Gaffney - (SC) (#6894)Municipal6,3142.82x/yr1375 min (22.9h)488 min12.39 ¢/kWh
City of Laurens - (SC) (#21526)Municipal5,5132.37x/yr3136 min (52.3h)1326 min12.05 ¢/kWh
City of Newberry - (SC) (#13523)Municipal5,4582.37x/yr3136 min (52.3h)1326 min14.83 ¢/kWh
City of Georgetown - (SC) (#7128)Municipal5,4402.37x/yr3136 min (52.3h)1326 min12.85 ¢/kWh