interXdata

South Carolina Interconnection Projects

interXdata tracks 1,256 interconnection projects in South Carolina representing 125,639 MW of requested capacity. The dominant technology by capacity is Gas. The most active counties are Darlington, Anderson, Berkeley.

1,256Total projects
230Active
442Operational
572Withdrawn
125,639 MWRequested capacity
23,025 MWActive capacity

Technology mix

TechnologyProjectsRequested capacity
Gas21345,494 MW
Solar68140,988 MW
Other19719,315 MW
Battery11713,603 MW
Solar+Battery415,964 MW
Oil5205 MW
Hydro148 MW
Gas+Oil122 MW

Counties

CountyProjectsRequested capacity
Darlington774,978 MW
Anderson6910,630 MW
Berkeley5310,897 MW
Georgetown488,020 MW
Orangeburg463,655 MW
Aiken443,849 MW
Colleton426,269 MW
Richland414,534 MW
Florence402,402 MW
Fairfield395,690 MW
Greenwood392,333 MW
Williamsburg383,775 MW
Spartanburg362,536 MW
Marlboro362,014 MW
Cherokee356,424 MW
Horry331,675 MW
Newberry323,142 MW
Lexington311,735 MW
Chesterfield311,932 MW
Chester31951 MW
Union311,002 MW
Kershaw291,904 MW
Marion261,778 MW
Laurens231,216 MW
Lee22842 MW
Greenville22584 MW
Beaufort21646 MW
Calhoun202,459 MW
Oconee186,709 MW
Hampton182,091 MW
Clarendon17891 MW
Barnwell161,388 MW
Saluda161,418 MW
Allendale14615 MW
Jasper143,142 MW
Dillon14578 MW
York132,725 MW
Sumter13997 MW
Pickens10989 MW
Charleston10742 MW

Largest projects

ProjectQueue IDTechnologyCapacityStatusLocation
Duke Energy Carolinas LLC566988Battery1,680.0 MWwithdrawnOconee, South Carolina
Duke Energy Carolinas LLC957264Gas1,450.0 MWactiveAnderson, South Carolina
SC Queue Project 71 — Gas in Anderson, South Carolina71Gas1,265.0 MWwithdrawnAnderson, South Carolina
SC Queue Project 326 — Other in Fairfield, South Carolina326Other1,250.0 MWactiveFairfield, South Carolina
SC Queue Project 327 — Other in Fairfield, South Carolina327Other1,250.0 MWactiveFairfield, South Carolina
SC Queue Project 69 — Gas in Newberry, South Carolina69Gas1,212.0 MWwithdrawnNewberry, South Carolina
Catawba6036_2Other1,205.1 MWoperationalYork, South Carolina
Catawba6036_1Other1,205.1 MWoperationalYork, South Carolina
Southeast Queue Project 20180112001 — Gas in Anderson, South Carolina20180112001Gas1,200.0 MWwithdrawnAnderson, South Carolina
V C Summer6127_1Other1,029.6 MWoperationalFairfield, South Carolina
Oconee3265_3Other893.3 MWoperationalOconee, South Carolina
Oconee3265_2Other886.7 MWoperationalOconee, South Carolina
Oconee3265_1Other886.7 MWoperationalOconee, South Carolina
SC Queue Project 18 — Gas in Abbeville, South Carolina18Gas882.0 MWoperationalAbbeville, South Carolina
Southeast Queue Project 20200910001 — Gas in Berkeley, South Carolina20200910001Gas870.0 MWwithdrawnBerkeley, South Carolina
SC Queue Project 151 — Gas in Georgetown, South Carolina151Gas870.0 MWwithdrawnGeorgetown, South Carolina
SC Queue Project 152 — Gas in Georgetown, South Carolina152Gas870.0 MWwithdrawnGeorgetown, South Carolina
Duke Energy Carolina LLC - Lee CC017482Gas825.0 MWoperationalAnderson, South Carolina
Lee Steam 800 - 100 kV017105Gas800.0 MWwithdrawnAnderson, South Carolina
H B Robinson3251_2Other768.6 MWoperationalDarlington, South Carolina
SC Queue Project 320 — Gas in Aiken, South Carolina320Gas767.5 MWwithdrawnAiken, South Carolina
Masked564266Gas757.0 MWwithdrawnCherokee, South Carolina
Masked569364Gas757.0 MWwithdrawnCherokee, South Carolina
Masked020197Gas747.0 MWwithdrawnAnderson, South Carolina
Masked021177Gas741.0 MWwithdrawnCherokee, South Carolina
Southeast Queue Project 20200910002 — Gas in Berkeley, South Carolina20200910002Gas720.0 MWwithdrawnBerkeley, South Carolina
MaskedCC100000Gas711.0 MWwithdrawnSpartanburg, South Carolina
Masked977574Gas709.9 MWwithdrawnSpartanburg, South Carolina
Williams3298_ST1Other659.7 MWoperationalBerkeley, South Carolina
Cross130_4Other652.0 MWoperationalBerkeley, South Carolina

Top developers in South Carolina

Developer (canonical)ProjectsCapacity
Duke Energy Florida, LLC448,671 MW
SCPSA297,316 MW
DESC - Generation141,654 MW
SRE240 MW
Domtar2102 MW
Lambert II2200 MW
Lee Steam 800 - 100 kV1800 MW
Greenbow Solar Park LLC175 MW
Broad River Energy LLC150 MW
RockTenn CP, LLC110 MW
Leek Holdings, LLC175 MW
Allora175 MW
Santee Cooper1300 MW
Southern California Solar DBA Solar Electrical Systems1113 MW
May Renewables LLC1100 MW

Recent material changes

ObservedProjectFieldOldNew
2026-10-05MaskeddeveloperFoxhound Energy Storage, LLCMasked
2026-10-02Big Fork Solarproposed_online_date2027-02-012027-03-01
2026-10-02Kingstree West 115proposed_online_date2026-08-012026-10-01
2026-10-02Ebbie Solar, LLCnew_project—operational
2026-10-02Bishopville Solar, LLCnew_project—operational
2026-09-21Maskedpoi_nameROBINSON PLANT - CAMDEN JUNCTION 115KVRobinson Plant - Camden Junction 115kV
2026-09-21Duke Energy Progress LLCpoi_nameDarlington County Plant - Bennettsville Sw Sta 230kVDARLINGTON COUNTY PLANT - BENNETTSVILLE SW STA 230KV
2026-09-21Maskedstatusactivewithdrawn
2026-09-21Maskedpoi_name—Clinton Bl 100 kV
2026-09-21Maskedpoi_name—Shady Grove Tie
2026-09-21Maskedpoi_name—Belton Tie
2026-09-21MaskeddeveloperMaskedFoxhound Energy Storage, LLC

Explore related data

Source last checked2026-07-31
Data last materially changed2026-10-11
Page data generated2026-10-11

Provenance: duke-dec-oasis; duke-dep-oasis; U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset; santee-cooper-oasis. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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