AI data center sites in Mississippi
78 Mississippi counties scored on transmission, the interconnection queue, power price and tax. Updated October 18, 2026.
Open a county for its queue requests, substations, plants and data centers.
| County | Score | Pipeline | Power price |
|---|---|---|---|
| 67 | 195 MW | 7.7¢/kWh | |
| 67 | - | 7.7¢/kWh | |
| 67 | 835 MW | 7.7¢/kWh | |
| 63 | 150 MW | 7.7¢/kWh | |
| 63 | 504 MW | 7.7¢/kWh | |
| 59 | 827 MW | 7.7¢/kWh | |
| 59 | - | 7.7¢/kWh | |
| 55 | 1 GW | 7.7¢/kWh | |
| 54 | - | 7.7¢/kWh | |
| 53 | - | 7.7¢/kWh | |
| 53 | - | 7.7¢/kWh | |
| 49 | 100 MW | 7.7¢/kWh | |
| 49 | - | 7.7¢/kWh | |
| 49 | - | 7.7¢/kWh | |
| 48 | 807 MW | 7.7¢/kWh | |
| 48 | - | 7.7¢/kWh | |
| 47 | - | 7.7¢/kWh | |
| 46 | - | 7.7¢/kWh | |
| 45 | 337 MW | 7.7¢/kWh | |
| 44 | - | 7.7¢/kWh | |
| 44 | - | 7.7¢/kWh | |
| 43 | - | 7.7¢/kWh | |
| 43 | - | 7.7¢/kWh | |
| 43 | - | 7.7¢/kWh | |
| 42 | - | 7.7¢/kWh | |
| 41 | - | 7.7¢/kWh | |
| 40 | - | 7.7¢/kWh | |
| 40 | - | 7.7¢/kWh | |
| 39 | 500 MW | 7.7¢/kWh | |
| 39 | - | 7.7¢/kWh | |
| 39 | - | 7.7¢/kWh | |
| 39 | - | 7.7¢/kWh | |
| 39 | - | 7.7¢/kWh | |
| 38 | 150 MW | 7.7¢/kWh | |
| 38 | 100 MW | 7.7¢/kWh | |
| 38 | 160 MW | 7.7¢/kWh | |
| 37 | 450 MW | 7.7¢/kWh | |
| 37 | 150 MW | 7.7¢/kWh | |
| 36 | 225 MW | 7.7¢/kWh | |
| 36 | 200 MW | 7.7¢/kWh | |
| 36 | 165 MW | 7.7¢/kWh | |
| 36 | 160 MW | 7.7¢/kWh | |
| 36 | 96 MW | 7.7¢/kWh | |
| 36 | - | 7.7¢/kWh | |
| 36 | 55 MW | 7.7¢/kWh | |
| 35 | 110 MW | 7.7¢/kWh | |
| 35 | 100 MW | 7.7¢/kWh | |
| 35 | 100 MW | 7.7¢/kWh | |
| 35 | 75 MW | 7.7¢/kWh | |
| 35 | - | 7.7¢/kWh |
Pipeline: active generation and storage requests in the ISO queue, or EIA planned plants where larger (outside the ISOs). Top kV: highest substation voltage. Power price: the state's industrial average. DCs: GPU colocation, mining sites and AI campuses.
What the data shows
The strongest Mississippi counties for a large AI load are DeSoto County (67), Jackson County (67) and Warren County (67) on the site score. Mississippi sits in MISO and utility territory; its ISO queues hold 4.9 GW of active generation and storage requests, and it has 19 substations at 345 kV and up.
Industrial power averaged 7.7¢/kWh (EIA, July 2026 YTD), against 7.3¢/kWh a year earlier, the 12th lowest of the 50 states and DC. Mississippi has a data center sales and use tax exemption in force. We track 3 AI campuses and 0 GPU-ready colocation facilities here.
Top 6 counties in detail
1. DeSoto CountyUtility: Tennessee Valley Authority
Site score 67 of 100
- Transmission
- 25/25
- Generation pipeline
- 3/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 6/15
- Sales tax exemption
- 10/10
- Data center activity
- 4/10
- Market
- Utility: Tennessee Valley Authority
- Queue (active)
- 100 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 195 MW
- Top substation
- 500 kV
- Substations 230 kV+
- 7
- Operating plants
- 1 GW
- Retired or retiring
- 0 MW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Largest queue requests
| Project | Point of interconnection | MW | Type | Stage |
|---|---|---|---|---|
| TWINKLETOWNMISO S1134, in service 2028-01 | TWINKLETOWN | 100 | Storage | In study |
Substations, 115 kV and up
- SOUTHAVEN · 2 lines500 kV
- HORN LAKE · 5 lines230 kV
- GETWELL · 4 lines230 kV
- BANKS · 4 lines230 kV
- TWINKLETOWN · 3 lines230 kV
- CHURCH ROAD · 2 lines230 kV
- ENTERPRISE ENERGY FACILITY · 1 lines230 kV
- MILLER · 3 lines161 kV
Planned, retiring and retired plants
- Penton Solar Plant · Solar, planned 2028190 MW
Data centers, AI campuses and mining sites
- xAI MACROHARDRR (Southaven) · AI campus, under construction · DCD
Colocation from our GPU colocation list; mining sites from the miner AI conversion tracker.
2. Jackson CountyUtility: Southern Company
Site score 67 of 100
- Transmission
- 23/25
- Generation pipeline
- 0/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 15/15
- Sales tax exemption
- 10/10
- Data center activity
- 0/10
- Market
- Utility: Southern Company
- Queue (active)
- 0 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 0 MW
- Top substation
- 500 kV
- Substations 230 kV+
- 4
- Operating plants
- 2.4 GW
- Retired or retiring
- 1.1 GW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Substations, 115 kV and up
- DANIEL STATION · 5 lines500 kV
- Unnamed · 8 lines230 kV
- Unnamed · 7 lines230 kV
- Unnamed · 7 lines230 kV
- Unnamed · 4 lines115 kV
- Unnamed · 3 lines115 kV
- Unnamed · 3 lines115 kV
- Unnamed · 3 lines115 kV
Planned, retiring and retired plants
- Victor J Daniel Jr · Coal, retiring 20271.1 GW
3. Warren CountyMISO
Site score 67 of 100
- Transmission
- 17/25
- Generation pipeline
- 11/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 6/15
- Sales tax exemption
- 10/10
- Data center activity
- 4/10
- Market
- MISO
- Queue (active)
- 0 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 835 MW
- Top substation
- 500 kV
- Substations 230 kV+
- 1
- Operating plants
- 58 MW
- Retired or retiring
- 550 MW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Substations, 115 kV and up
- BAXTER WILSON · 8 lines500 kV
- VICKSBURG · 4 lines115 kV
- BEACH GROVE · 3 lines115 kV
- Unnamed · 3 lines115 kV
- Unnamed · 3 lines115 kV
- NORTH VICKSBURG · 3 lines115 kV
- Unnamed · 3 lines115 kV
- Unnamed · 3 lines115 kV
Planned, retiring and retired plants
- Vicksburg Advanced Power Station · Gas, planned 2028819 MW
- Baxter Wilson · Gas, retired 2023545 MW
Data centers, AI campuses and mining sites
- AWS Vicksburg campus · AI campus, announced · Mississippi Public Broadcasting
Colocation from our GPU colocation list; mining sites from the miner AI conversion tracker.
4. Hinds CountyMISO
Site score 63 of 100
- Transmission
- 25/25
- Generation pipeline
- 5/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 5/15
- Sales tax exemption
- 10/10
- Data center activity
- 0/10
- Market
- MISO
- Queue (active)
- 150 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 150 MW
- Top substation
- 500 kV
- Substations 230 kV+
- 8
- Operating plants
- 605 MW
- Retired or retiring
- 0 MW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Largest queue requests
| Project | Point of interconnection | MW | Type | Stage |
|---|---|---|---|---|
| TINNIN ROADMISO S1141, in service 2028-09 | TINNIN ROAD | 150 | Storage | In study |
Substations, 115 kV and up
- RAY BRASWELL · 12 lines500 kV
- LAKEOVER · 10 lines500 kV
- SOUTH JACKSON · 11 lines230 kV
- REX BROWN · 7 lines230 kV
- TINNIN ROAD · 3 lines230 kV
- Unnamed · 3 lines230 kV
- ROBINSON ROAD · 2 lines230 kV
- NORTHSIDE DRIVE · 2 lines230 kV
Planned, retiring and retired plants
- Hinds Solar, LLC · Solar, planned 2027150 MW
5. Lowndes CountyUtility: Tennessee Valley Authority
Site score 63 of 100
- Transmission
- 19/25
- Generation pipeline
- 5/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 8/15
- Sales tax exemption
- 10/10
- Data center activity
- 3/10
- Market
- Utility: Tennessee Valley Authority
- Queue (active)
- 0 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 504 MW
- Top substation
- 500 kV
- Substations 230 kV+
- 2
- Operating plants
- 1.4 GW
- Retired or retiring
- 0 MW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Substations, 115 kV and up
- LOWNDES · 8 lines500 kV
- WEST VERNON · 3 lines500 kV
- WESTPOINT · 5 lines161 kV
- Unnamed · 4 lines161 kV
- Unnamed · 4 lines161 kV
- Unnamed · 3 lines161 kV
- Unnamed · 3 lines161 kV
- Unnamed · 3 lines161 kV
Planned, retiring and retired plants
- New Caledonia · Gas, planned 2028504 MW
Data centers, AI campuses and mining sites
- PowerCompute, Columbus · mining site
Colocation from our GPU colocation list; mining sites from the miner AI conversion tracker.
6. Madison CountyMISO
Site score 59 of 100
- Transmission
- 14/25
- Generation pipeline
- 11/20
- Industrial power price
- 19/20
- Existing and retiring plants
- 2/15
- Sales tax exemption
- 10/10
- Data center activity
- 4/10
- Market
- MISO
- Queue (active)
- 827 MW
- Agreement signed
- 0 MW
- Planned plants (EIA)
- 819 MW
- Top substation
- 230 kV
- Substations 230 kV+
- 3
- Operating plants
- 100 MW
- Retired or retiring
- 0 MW
- Industrial power, MS
- 7.7¢/kWh
- Sales tax exemption
- Yes
Largest queue requests
| Project | Point of interconnection | MW | Type | Stage |
|---|---|---|---|---|
| Andes SubstationMISO J4154, in service 2028-08 | Andes Substation | 200 | Storage | In study |
| LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3049, in service 2024-12 | LAKEOVER EHV - MCADAMS EHV 500.0kV | 188 | Solar | In study |
| Andes Substation 230 kVMISO J3764, in service 2028-03 | Andes Substation 230 kV | 170 | Solar or wind + storage | In study |
| LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3053, in service 2024-12 | LAKEOVER EHV - MCADAMS EHV 500.0kV | 169 | Solar | In study |
| LAKEOVER EHV - MCADAMS EHV 500.0kVMISO J3093, in service 2024-12 | LAKEOVER EHV - MCADAMS EHV 500.0kV | 100 | Storage | In study |
Substations, 115 kV and up
- Unnamed · 5 lines230 kV
- YANDELL ROAD · 3 lines230 kV
- BOZEMAN ROAD · 2 lines230 kV
- SUNNYBROOK · 2 lines115 kV
- LAKE CASTLE · 2 lines115 kV
Planned, retiring and retired plants
- Traceview Advanced Power Station · Gas, planned 2028819 MW
Data centers, AI campuses and mining sites
- AWS Project Atlas (Madison County) · AI campus, under construction · DCD
Colocation from our GPU colocation list; mining sites from the miner AI conversion tracker.
Data center tax exemption in Mississippi
Mississippi data center tax exemption (Miss. Code §§ 57-113-21 to 57-113-27; electricity under § 27-65-107)
MDA-certified data centers investing at least $20 million and creating at least 20 full-time jobs at 125% of the average state wage are exempt for 10 years from sales and use tax on building materials and equipment for initial construction or expansion and on replacement hardware and software, plus income and franchise tax, and their purchases of electricity and fuel for industrial purposes are also exempt.
Recent change: 2025 bills to raise thresholds and add 10-year extensions (SB 3168, HB 1239) died; no 2026 change found.
Source: Mississippi Legislature, 2019. General information, not tax advice; ask your tax advisor.
AI data centers being built in Mississippi
| Campus | Developer | County | MW | Status | Source |
|---|---|---|---|---|---|
| AWS Project Atlas (Madison County) | Amazon Web Services | Madison County | - | under construction | DCDNov 2025 |
| AWS Vicksburg campus | Amazon Web Services | Warren County | - | announced | Mississippi Public BroadcastingNov 2025 |
| xAI MACROHARDRR (Southaven)Users: xAI | xAI (SpaceX) | DeSoto County | - | under constructionOn-site power | DCDJan 2026 |
How the score works
Six parts out of 100: transmission (25), generation in the queue (20), the state's industrial power price (20), existing and retiring plants (15), sales tax exemption (10) and data center activity (10). The site finder's methodology prints each formula and every source with its date. Markets: MISO (Midwest and South), Utility territory (no ISO/RTO).
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Discuss a transaction
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