gridprims

Interconnection queue

Interconnection queue in South Carolina

Data: Lawrence Berkeley National Laboratory and GridTracker, Queued Up, as of Dec 31, 2025.

This is an annual snapshot. A request's status may have changed since. Current status at Interconnection.fyi.

LBNL licenses the file CC BY 4.0, so project rows are shown and the file can be downloaded from our data library.

Statewide

Active capacity
19,838 MW
Active requests
194
Median years in queue (active)
1.5
Withdrawn, of requests entered by 2020
76%
Active capacity by type
TypeActive capacity (MW)Projects
Solar6,902103
Storage2,22719
Gas8,54149
Hybrid1,43312
Other73611

By county

Queue requests by county in South Carolina, as of Dec 31, 2025
CountyActive capacity (MW)ProjectsSolarWindStorageGasHybridOtherMedian years in queue (active)Withdrawn, of requests entered by 2020
Colleton5,748192001755,0233500.6
Anderson1,91418821,8322.6
Williamsburg1,241148863541.7
Darlington1,209201,154551.5
Berkeley1,0266749791980.6
Aiken657103043530.6
Georgetown56172501002110.655% of 20
Hampton55064001502.1
Marion535103961391.4
Rowan45514551.5
Orangeburg45261772753.6
Lee41042651451.1
Chesterfield4016353481.3
Dorchester39823980.6
Richland3763513251.6
Saluda33531861501.6
Chester3126902220.6
Marlboro31051601501.0
Newberry27122712.5
Charleston2632263
Greenwood2536154991.2
Jasper2342234
Barnwell224314975
Sumter20012002.6
Fairfield16741055582.1
Spartanburg156357991.0
Calhoun14837573
York139299401.0
Horry13921395.0
Dillon12841281.6
Oconee11211121.5
Lexington108260480.6
Laurens882883.5
Bamberg86186
Florence845841.5
Union751752.3
Kershaw481483.5
Cherokee281283.5
Beaufort00
Allendale00
Greenville00
Pickens00
Mccormick00
Abbeville00
Clarendon00
Edgefield00
County not given00
Lancaster00

Capacity is each request's first-listed capacity, so a hybrid's battery is not added on top. Most requests in a queue never get built.

Active requests

Status is as of Dec 31, 2025. Current status at Interconnection.fyi.

Active interconnection requests in South Carolina
ProjectCountyTypeMWEntered the queueStudy phaseUtility or operatorLive status
957264AndersonGas1,4502024-06-21Cluster StudyDuke Energy CarolinasCurrent status
283ColletonGas8192025-02-10Cluster StudySantee CooperCurrent status
284ColletonGas8192025-02-10Cluster StudySantee CooperCurrent status
285ColletonGas8192025-02-10Cluster StudySantee CooperCurrent status
300ColletonGas4582025-05-29Cluster StudySantee CooperCurrent status
301ColletonGas4582025-05-29Cluster StudySantee CooperCurrent status
956747RowanGas4552024-06-20Cluster StudyDuke Energy CarolinasCurrent status
20240829009ColletonGas338Dominion Energy South CarolinaCurrent status
20240829010ColletonGas338Dominion Energy South CarolinaCurrent status
20240829011ColletonGas338Dominion Energy South CarolinaCurrent status
GenRep1BerkeleyBattery3002025-11-14In Progress (unknown study)Santee CooperCurrent status
20240829001RichlandSolar+Battery250Dominion Energy South CarolinaCurrent status
20240829004ColletonSolar+Battery250Dominion Energy South CarolinaCurrent status
308BerkeleyBattery2502025-05-29Cluster StudySantee CooperCurrent status
171WilliamsburgSolar2492021-10-26ConstructionSantee CooperCurrent status
200AndersonGas2092023-06-01In Progress (unknown study)Santee CooperCurrent status
302ColletonGas2082025-05-29Cluster StudySantee CooperCurrent status
303ColletonGas2082025-05-29Cluster StudySantee CooperCurrent status
957146NewberrySolar2002024-06-27Cluster StudyDuke Energy CarolinasCurrent status
191SumterSolar2002023-06-01In Progress (unknown study)Santee CooperCurrent status
20190729002ColletonSolar200Cluster StudyDominion Energy South CarolinaCurrent status
20230829013BerkeleyBattery199Dominion Energy South CarolinaCurrent status
309DorchesterBattery1992025-05-29Cluster StudySantee CooperCurrent status
310DorchesterBattery1992025-05-29Cluster StudySantee CooperCurrent status
206BerkeleySolar+Battery1982023-06-01In Progress (unknown study)Santee CooperCurrent status
267SaludaSolar1862024-06-05In Progress (unknown study)Santee CooperCurrent status
244WilliamsburgSolar1752024-02-01In Progress (unknown study)Santee CooperCurrent status
20181030001CharlestonSolar160Cluster StudyDominion Energy South CarolinaCurrent status
20211104001JasperGas158Cluster StudyDominion Energy South CarolinaCurrent status
270WilliamsburgSolar1502024-06-05In Progress (unknown study)Santee CooperCurrent status
316HamptonSolar1502025-06-02Cluster StudySantee CooperCurrent status
278WilliamsburgSolar1502024-06-05In Progress (unknown study)Santee CooperCurrent status
962925LeeSolar1452024-09-26Cluster StudyDuke Energy ProgressCurrent status
PP00034LeeOther1452025-07-10In Progress (unknown study)Duke Energy ProgressCurrent status
282MarionSolar1202025-01-03Cluster StudySantee CooperCurrent status
957349OconeeHydro1122024-06-27Cluster StudyDuke Energy CarolinasCurrent status
20181030002CharlestonSolar103Cluster StudyDominion Energy South CarolinaCurrent status
20210310001OrangeburgSolar+Battery100Cluster StudyDominion Energy South CarolinaCurrent status
20230825001ColletonSolar+Battery100Dominion Energy South CarolinaCurrent status
20250918001ColletonBattery100Dominion Energy South CarolinaCurrent status
130GeorgetownSolar1002019-07-17ConstructionSantee CooperCurrent status
135GeorgetownSolar1002019-12-20ConstructionSantee CooperCurrent status
137OrangeburgSolar+Battery1002020-05-08ConstructionSantee CooperCurrent status
266HamptonSolar1002024-06-05In Progress (unknown study)Santee CooperCurrent status
292GeorgetownGas1002025-05-19Cluster StudySantee CooperCurrent status
299GeorgetownBattery1002025-05-29Cluster StudySantee CooperCurrent status
977302YorkBattery992025-06-18Cluster StudyDuke Energy CarolinasCurrent status
977308SpartanburgBattery992025-06-18Cluster StudyDuke Energy CarolinasCurrent status
977315GreenwoodBattery992025-06-18Cluster StudyDuke Energy CarolinasCurrent status
20200824001BambergSolar86Cluster StudyDominion Energy South CarolinaCurrent status
20220316001AikenSolar80Cluster StudyDominion Energy South CarolinaCurrent status
962635ChesterfieldSolar802024-09-25Cluster StudyDuke Energy ProgressCurrent status
20230829006JasperGas76Dominion Energy South CarolinaCurrent status
568892DarlingtonSolar762022-06-24IA ExecutedDuke Energy ProgressCurrent status
20211221001HamptonBattery75Cluster StudyDominion Energy South CarolinaCurrent status
20220112001HamptonSolar75Cluster StudyDominion Energy South CarolinaCurrent status
20220429001CalhounSolar75Cluster StudyDominion Energy South CarolinaCurrent status
20250929001FairfieldSolar75Dominion Energy South CarolinaCurrent status
565080DarlingtonSolar752022-06-28IA ExecutedDuke Energy ProgressCurrent status
570382DarlingtonSolar752022-06-29IA ExecutedDuke Energy ProgressCurrent status
956538MarlboroSolar752024-06-27Cluster StudyDuke Energy ProgressCurrent status
PP00007DarlingtonSolar752024-12-06In Progress (unknown study)Duke Energy ProgressCurrent status
132HamptonSolar752019-12-20In Progress (unknown study)Santee CooperCurrent status
234HamptonBattery752023-06-01In Progress (unknown study)Santee CooperCurrent status
238MarionSolar752023-06-01In Progress (unknown study)Santee CooperCurrent status
246WilliamsburgSolar752024-02-01In Progress (unknown study)Santee CooperCurrent status
251WilliamsburgBattery752024-02-01In Progress (unknown study)Santee CooperCurrent status
920665UnionSolar752023-09-28IA ExecutedDuke Energy CarolinasCurrent status
20230829007BarnwellSolar+Battery75Dominion Energy South CarolinaCurrent status
20230829011SaludaSolar+Battery75Dominion Energy South CarolinaCurrent status
20230829012OrangeburgSolar+Battery75Dominion Energy South CarolinaCurrent status
20240829013RichlandSolar+Battery75Dominion Energy South CarolinaCurrent status
20250922002SaludaSolar+Battery75Dominion Energy South CarolinaCurrent status
566202AndersonSolar752022-06-29IA ExecutedDuke Energy CarolinasCurrent status
566478DarlingtonSolar752022-06-29IA ExecutedDuke Energy ProgressCurrent status
566488ChesterfieldSolar752022-06-29ConstructionDuke Energy ProgressCurrent status
566518DarlingtonSolar752022-06-29ConstructionDuke Energy ProgressCurrent status
566542DarlingtonSolar752022-06-29ConstructionDuke Energy ProgressCurrent status
566724DarlingtonSolar752022-06-29ConstructionDuke Energy ProgressCurrent status
925531WilliamsburgSolar752021-06-08ConstructionDuke Energy ProgressCurrent status
957368MarlboroSolar752024-06-28Cluster StudyDuke Energy ProgressCurrent status
962968MarionSolar752024-09-27Cluster StudyDuke Energy ProgressCurrent status
977873ChesterfieldSolar752025-06-30Cluster StudyDuke Energy ProgressCurrent status
PP00002DarlingtonSolar752024-09-04ConstructionDuke Energy ProgressCurrent status
PP00003ChesterfieldSolar752024-09-04ConstructionDuke Energy ProgressCurrent status
PP00004DarlingtonSolar752024-09-04In Progress (unknown study)Duke Energy ProgressCurrent status
PP00008DarlingtonSolar752025-01-06ConstructionDuke Energy ProgressCurrent status
PP00009DarlingtonSolar752025-01-06ConstructionDuke Energy ProgressCurrent status
PP00055MarlboroOther752025-10-29In Progress (unknown study)Duke Energy ProgressCurrent status
PP00056MarionOther752025-10-29In Progress (unknown study)Duke Energy ProgressCurrent status
PP00057MarlboroOther752025-11-03In Progress (unknown study)Duke Energy ProgressCurrent status
208AikenSolar752023-06-01In Progress (unknown study)Santee CooperCurrent status
230WilliamsburgBattery752023-06-01In Progress (unknown study)Santee CooperCurrent status
272OrangeburgSolar752024-06-05In Progress (unknown study)Santee CooperCurrent status
281AikenSolar752024-06-05In Progress (unknown study)Santee CooperCurrent status
312WilliamsburgBattery752025-06-02Cluster StudySantee CooperCurrent status
20240829007BarnwellSolar75Dominion Energy South CarolinaCurrent status
211HorrySolar752023-06-01In Progress (unknown study)Santee CooperCurrent status
20240829014BarnwellSolar75Dominion Energy South CarolinaCurrent status
222ColletonBattery752023-06-01In Progress (unknown study)Santee CooperCurrent status
223WilliamsburgBattery752023-06-01In Progress (unknown study)Santee CooperCurrent status
PP00001DarlingtonSolar742024-09-01ConstructionDuke Energy ProgressCurrent status
124AikenSolar742019-02-12ConstructionSantee CooperCurrent status
572280GreenwoodSolar722022-06-28IA ExecutedDuke Energy CarolinasCurrent status
569164NewberrySolar712022-06-24In Progress (unknown study)Duke Energy CarolinasCurrent status
920651DarlingtonSolar702023-09-30IA PendingDuke Energy ProgressCurrent status
48968ChesterSolar702017-11-21IA ExecutedDuke Energy CarolinasCurrent status
20211118004AikenGas66Cluster StudyDominion Energy South CarolinaCurrent status
20211118005BerkeleyGas65Cluster StudyDominion Energy South CarolinaCurrent status
915773DillonSolar652023-09-28Facility StudyDuke Energy ProgressCurrent status
915787FlorenceSolar652023-09-28IA PendingDuke Energy ProgressCurrent status
20211118003AikenGas65Cluster StudyDominion Energy South CarolinaCurrent status
109HorrySolar642018-07-06In Progress (unknown study)Santee CooperCurrent status
917739MarionSolar642023-09-27Facility StudyDuke Energy ProgressCurrent status
PP00029MarionOther642025-06-01In Progress (unknown study)Duke Energy ProgressCurrent status
566580LeeSolar602022-06-29ConstructionDuke Energy ProgressCurrent status
PP00010LeeSolar602025-01-13ConstructionDuke Energy ProgressCurrent status
286OrangeburgSolar602025-05-19Cluster StudySantee CooperCurrent status
311LexingtonSolar+Battery602025-05-29Cluster StudySantee CooperCurrent status
20211118002FairfieldGas58Cluster StudyDominion Energy South CarolinaCurrent status
288ChesterGas562025-05-19Cluster StudySantee CooperCurrent status
289ChesterGas562025-05-19Cluster StudySantee CooperCurrent status
290ChesterGas562025-05-19Cluster StudySantee CooperCurrent status
291ChesterGas562025-05-19Cluster StudySantee CooperCurrent status
293GeorgetownGas562025-05-19Cluster StudySantee CooperCurrent status
294GeorgetownGas562025-05-19Cluster StudySantee CooperCurrent status
295ColletonGas562025-05-19Cluster StudySantee CooperCurrent status
296ColletonGas562025-05-19Cluster StudySantee CooperCurrent status
297ColletonGas562025-05-19Cluster StudySantee CooperCurrent status
298ColletonGas562025-05-19Cluster StudySantee CooperCurrent status
304AikenGas562025-05-29Cluster StudySantee CooperCurrent status
305AikenGas562025-05-29Cluster StudySantee CooperCurrent status
306AikenGas562025-05-29Cluster StudySantee CooperCurrent status
307AikenGas562025-05-29Cluster StudySantee CooperCurrent status
239MarionSolar552023-06-01In Progress (unknown study)Santee CooperCurrent status
313WilliamsburgBattery552025-06-02Cluster StudySantee CooperCurrent status
569804SpartanburgSolar542022-06-29IA ExecutedDuke Energy CarolinasCurrent status
268RichlandSolar512024-06-05In Progress (unknown study)Santee CooperCurrent status
20211117001CalhounGas50Cluster StudyDominion Energy South CarolinaCurrent status
963122LaurensSolar502024-09-26Cluster StudyDuke Energy CarolinasCurrent status
956852DarlingtonSolar502024-06-28Cluster StudyDuke Energy ProgressCurrent status
165GeorgetownSolar502021-10-26ConstructionSantee CooperCurrent status
261DillonSolar502024-05-15In Progress (unknown study)Santee CooperCurrent status
569014KershawSolar482022-06-30IA ExecutedDuke Energy ProgressCurrent status
961214ChesterfieldSolar482024-09-27Cluster StudyDuke Energy ProgressCurrent status
PP00052ChesterfieldOther482025-09-26In Progress (unknown study)Duke Energy ProgressCurrent status
20230829005LexingtonHydro48IA ExecutedDominion Energy South CarolinaCurrent status
39OrangeburgSolar422015-06-23ConstructionSantee CooperCurrent status
957233YorkNuclear402024-06-26Cluster StudyDuke Energy CarolinasCurrent status
164382LaurensSolar382020-03-06IA ExecutedDuke Energy CarolinasCurrent status
126066GreenwoodSolar342020-03-09IA ExecutedDuke Energy CarolinasCurrent status
956475AndersonGas302024-06-10Cluster StudyDuke Energy CarolinasCurrent status
957086DarlingtonSolar302024-06-29Cluster StudyDuke Energy ProgressCurrent status
PP00054DarlingtonOther302025-10-29In Progress (unknown study)Duke Energy ProgressCurrent status
287FairfieldSolar302025-05-19Cluster StudySantee CooperCurrent status
572354CherokeeSolar282022-06-29IA ExecutedDuke Energy CarolinasCurrent status
957449GreenwoodSolar262024-06-28Cluster StudyDuke Energy CarolinasCurrent status
957084DarlingtonSolar252024-06-29Cluster StudyDuke Energy ProgressCurrent status
PP00053DarlingtonOther252025-10-29In Progress (unknown study)Duke Energy ProgressCurrent status
20211104002CalhounGas23Cluster StudyDominion Energy South CarolinaCurrent status
978030AndersonGas202025-04-21Cluster StudyDuke Energy CarolinasCurrent status
199AndersonGas202023-06-01In Progress (unknown study)Santee CooperCurrent status
977884ChesterSolar202025-06-30Cluster StudyDuke Energy CarolinasCurrent status
977885GreenwoodSolar202025-06-30Cluster StudyDuke Energy CarolinasCurrent status
195AndersonGas182023-06-01In Progress (unknown study)Santee CooperCurrent status
196AndersonGas182023-06-01In Progress (unknown study)Santee CooperCurrent status
197AndersonGas182023-06-01In Progress (unknown study)Santee CooperCurrent status
198AndersonGas182023-06-01In Progress (unknown study)Santee CooperCurrent status
20211118001BerkeleyGas13Cluster StudyDominion Energy South CarolinaCurrent status
968547MarlboroSolar102025-01-08Cluster StudyDuke Energy ProgressCurrent status
956528DillonSolar92024-06-27Cluster StudyDuke Energy ProgressCurrent status
192AndersonGas72023-06-01In Progress (unknown study)Santee CooperCurrent status
193AndersonGas72023-06-01In Progress (unknown study)Santee CooperCurrent status
194AndersonGas72023-06-01In Progress (unknown study)Santee CooperCurrent status
977121WilliamsburgSolar62025-06-23Cluster StudyDuke Energy ProgressCurrent status
957514AndersonGas52024-06-21Cluster StudyDuke Energy CarolinasCurrent status
957517AndersonGas52024-06-21Cluster StudyDuke Energy CarolinasCurrent status
977864FlorenceSolar52025-06-27Cluster StudyDuke Energy ProgressCurrent status
977876WilliamsburgSolar52025-06-27Cluster StudyDuke Energy ProgressCurrent status
977879FlorenceSolar52025-06-27Cluster StudyDuke Energy ProgressCurrent status
957087FlorenceSolar52024-06-29Cluster StudyDuke Energy ProgressCurrent status
968459DarlingtonSolar52025-01-03Cluster StudyDuke Energy ProgressCurrent status
561350FairfieldBattery52022-06-01ConstructionDuke Energy CarolinasCurrent status
956532FlorenceSolar52024-06-27Cluster StudyDuke Energy ProgressCurrent status
968543DillonSolar42025-01-03Cluster StudyDuke Energy ProgressCurrent status
977878MarionSolar32025-06-27Cluster StudyDuke Energy ProgressCurrent status
968482AndersonSolar32025-01-03Cluster StudyDuke Energy CarolinasCurrent status
966893SpartanburgSolar32025-01-02Cluster StudyDuke Energy CarolinasCurrent status
972410AndersonSolar22025-03-18Cluster StudyDuke Energy CarolinasCurrent status
21892MarionSolar22018-07-06ConstructionDuke Energy ProgressCurrent status
968499GreenwoodSolar22025-01-03Cluster StudyDuke Energy CarolinasCurrent status
956474MarionSolar22024-06-27Cluster StudyDuke Energy ProgressCurrent status
956497WilliamsburgSolar22024-06-26Cluster StudyDuke Energy ProgressCurrent status
977127AndersonSolar22025-06-24Cluster StudyDuke Energy CarolinasCurrent status

Lawrence Berkeley National Laboratory and GridTracker · Queued Up: Interconnection Queue Data File (Lawrence Berkeley National Laboratory) · data for 2025 · as of May 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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