Electricity Generation Aggregated by South Carolina County

State Rank	County	Net Generation (Past Year)	Power Plants
#1	Oconee County, SC	21.4 TWh	4
#2	York County, SC	18.4 TWh	4
#3	Berkeley County, SC	11.1 TWh	9
#4	Anderson County, SC	10.9 TWh	17
#5	Fairfield County, SC	7.3 TWh	6
#6	Darlington County, SC	6.8 TWh	28
#7	Georgetown County, SC	5.3 TWh	7
#8	Jasper County, SC	5.0 TWh	5
#9	Richland County, SC	3.2 TWh	6
#10	Calhoun County, SC	3.2 TWh	7
#11	Aiken County, SC	2.1 TWh	6
#12	Orangeburg County, SC	2.1 TWh	17
#13	Cherokee County, SC	2.0 TWh	7
#14	Lexington County, SC	1.1 TWh	12
#15	McCormick County, SC	566.0 GWh	1
#16	Florence County, SC	484.5 GWh	12
#17	Allendale County, SC	358.0 GWh	6
#18	Saluda County, SC	295.6 GWh	4
#19	Marlboro County, SC	234.5 GWh	3
#20	Beaufort County, SC	209.7 GWh	6
#21	Chesterfield County, SC	152.5 GWh	4
#22	Dorchester County, SC	150.0 GWh	1
#23	Chester County, SC	147.0 GWh	3
#24	Kershaw County, SC	137.3 GWh	2
#25	Horry County, SC	127.6 GWh	9
#26	Lancaster County, SC	108.0 GWh	3
#27	Union County, SC	99.1 GWh	6
#28	Spartanburg County, SC	88.7 GWh	19
#29	Hampton County, SC	79.3 GWh	4
#30	Barnwell County, SC	75.8 GWh	8
#31	Williamsburg County, SC	66.1 GWh	3
#32	Lee County, SC	55.3 GWh	11
#33	Laurens County, SC	36.7 GWh	4
#34	Charleston County, SC	33.0 GWh	5
#35	Dillon County, SC	28.4 GWh	11
#36	Marion County, SC	22.9 GWh	12
#37	Greenville County, SC	20.4 GWh	9
#38	Clarendon County, SC	15.2 GWh	4
#39	Greenwood County, SC	14.8 GWh	6
#40	Bamberg County, SC	13.7 GWh	3
#41	Newberry County, SC	6.2 GWh	3
#42	Colleton County, SC	3.2 GWh	4
#43	Abbeville County, SC	117.0 MWh	1

Net Generation data is based on the last 12 months since Dec 2025

Totals are based on the most recent 12 months net generation

List of All South Carolina Counties