Data centers and new power in Mississippi

8.9 GW of new power is waiting to connect to the grid in Mississippi — 58 requests across 31 counties. That is the 37th largest amount of any state. 50 projects are built, 322 withdrawn. Data as of 14 October 2026.

The power picture

What is happening with electricity in Mississippi

Every new power plant, battery or big customer has to join a waiting list before it can plug into the grid. This is what that list looks like in Mississippi right now.

8.9 GW
of new power is waiting to connect
58 projects asked. Not yet approved. Roughly what 7.1 million homes use.
13.6 GW
has actually been built
50 projects switched on so far.
322
projects gave up
Withdrawn before being built. Normal nationally.

Where every request ever filed here ended up

  • Built 11%
  • Still waiting 13%
  • Withdrawn 74%
  • Paused 1%

Most requests in the US are withdrawn — a developer tests a site and moves on. That is normal, not a warning sign for Mississippi.

What kind of power is asking to connect

  • Solar 67%
  • Solar + battery 12%
  • Natural gas 8%
  • Batteries 7%
  • Wind 7%

By capacity requested. Data as of 14 October 2026.

All the numbers

435 requests ever filed
Waiting to connect
58
of 435 ever filed
Capacity requested
8.9 GW
asked for, not approved
Already built
13.6 GW
50 switched on
Built vs decided
13.4%
322 withdrawn
Counties involved
31
with five or more requests
Big new power users
none recorded
0 requests

Source: the interconnection queues of every transmission provider operating in Mississippi. Parsed and normalised by Watt Street. Data as of 14 October 2026. A queued project is a request, not a commitment.

Waiting to connect, by type of power

TypeProjectsCapacity requested
Solar405.9 GW
Solar + battery81.0 GW
Natural gas3699 MW
Batteries4650 MW
Wind3584 MW

Who runs the waiting list in Mississippi

Grid operator or utilityRequestsCapacity pending
MISO2045.6 GW
TVA1522.8 GW
SOCO79490 MW

Counties in Mississippi

31 with power on the waiting list

Every county with at least five requests on file. Open one to check an address, or see the schools near any mapped data center.

CountyWaitingCapacity queuedAlready built
Clay County5850 MW0 MW
Madison County5827 MW150 MW
Lowndes County2820 MW2.0 GW
Sunflower County5807 MW99 MW
Perry County3500 MW0 MW
Holmes County2425 MW0 MW
Jasper County3365 MW350 MW
DeSoto County2350 MW2.6 GW
Tunica County2337 MW360 MW
Chickasaw County2295 MW0 MW
Monroe County3235 MW0 MW
Bolivar County2225 MW135 MW
Leflore County1200 MW0 MW
Washington County1170 MW200 MW
Hinds County1150 MW546 MW
Amite County1100 MW0 MW
Panola County1100 MW860 MW
Scott County1100 MW175 MW
Tallahatchie County1100 MW100 MW
Choctaw County167 MW2.2 GW
Clarke County00 MW78 MW
Coahoma County00 MW0 MW
Forrest County00 MW50 MW
Jones County00 MW0 MW
Lamar County00 MW650 MW

Key dates for projects here

1 dated · next closes 2027-09-10 (MISO)
QueueWhat closesClosesStanding
MISOMISO DPP-2026 Definitive Planning Phase application deadline
Attachment X of the tariff and BPM-015.
2027-09-10confirmed source
FERCFERC large-load show cause — stakeholder comments on RTO responses
Comments on the six RTO/ISO responses to the FPA section 206 show-cause orders of 18 June 2026 (PJM EL26-67, SPP EL26-68, NYISO EL26-69, MISO EL26-70…
No date published yetunconfirmed source
FERCFERC RM26-4 — generic large-load rulemaking
Still at ANOPR stage.
No date published yetconfirmed source
FERCGeorgia PSC - Georgia Power must file large-load contracts 30 days before execution
A standing obligation rather than a dated one: large-load contracts must be filed with the commission at least 30 days before they are executed.
No date published yetconfirmed source

A date marked confirmed was checked by a person against the authority's own tariff, order or form page. Anything else is listed so you know it exists, with a link so you can check it yourself. Full calendar.

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