Power
Power and the grid
500 MW contracted
Mississippi Power grid supply under a special contractContract approved
utility load; approved by the state utility commission Feb. 2025; the utility will add about 500 MW of generation on its system (context only) Company · Jan. 2025
Contracted
Getting on the grid
Who supplies what, what it costs, and what is still not public.
- Jan. 9, 2025Utility deal announcedMississippi Power and Compass announce about 500 MW of service and a dedicated substation in the park. Company · Jan. 2025
- Feb. 7, 2025Special contract approvedThe state utility commission approves the roughly 500 MW contract. see Permits
- May 2025Transmission certificateThe commission certifies about 26 miles of new 230 kV line and 18.7 miles of upgrades, about $117.5M (press). see Permits
- Sept. 11, 2025Service-area agreementThe commission lets Mississippi Power serve the part of the campus inside a co-op's territory, by unanimous vote (press). News report · Sept. 2025
- 2032Transmission in serviceDeadline for the new 230 kV build. News report · May 2025
- The state utility commission approves service terms and transmission here, but it is not the land-use authority; the county and city handle land use and the fee-in-lieu tax deal. News report · Oct. 2026
- Backup diesel engines (328 per the application as reported; the permit schedule lists 800 kW units) are emergency backup, not supply. State agency · June 2026
What is next door
Distances from mapped lines and plants. OpenStreetMap · Oct. 2026
Permits
Permits checklist
6 granted
Permits and approvals on record. Local zoning and building permits are not in our sources.
- ✓Air permit to construct GrantedMississippi Environmental Quality Permit Board (MDEQ) · June 24, 2026: final; covers the backup engine fleet State agency · June 2026
- ✓Special electric contract GrantedMississippi Public Service Commission · Feb. 7, 2025: about 500 MW, long-term State agency · Feb. 2025
- ✓Transmission certificate GrantedMississippi Public Service Commission · May 2025: docket 2025-UA-25, about $117.5M (press) News report · May 2025
- ✓Service-area agreement GrantedMississippi Public Service Commission · Sept. 11, 2025: unanimous (press) News report · Sept. 2025
- ✓State land sale (8.85 acres) GrantedMississippi Legislature (Senate Bill 2599) · 2026: authorizes sale of a state parcel at fair market value State agency · Oct. 2026
- ✓Tower clearance for the transmission line GrantedFAA · April 23, 2026: 54 towers, no hazard FAA · April 2026
Risks
What could slow it down
- MediumLittle demand shownOne tenant, Corderill, is named, at $100M and 20 jobs; the campus is otherwise built ahead of customers (press). State agency · Oct. 2026
- MediumTax-deal criticismA watchdog called the package the 2025 worst economic development deal, citing a decade of exemptions and poor transparency (press). News report · Oct. 2026
- WatchOperator recordCompass's Leesburg, Virginia site paid a fine of nearly $68,000 for exceeding emission limits (press); a different campus. News report · Oct. 2026
- WatchPower cost terms privateMinimum billing, cost sharing and exit terms are not public. News report · Feb. 2025
Money
Money on record
10 years
state income and franchise tax exemption
plus sales tax exemptions; a watchdog named it the 2025 'worst deal' (press) News report · Oct. 2026
Timeline
What happened, and what is due
SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
- Jan. 9, 2025Site Compass and Mississippi Power announce the $10B, eight-building campus News report · Jan. 2025
- Feb. 7, 2025Permits The state commission approves the roughly 500 MW special contract State agency · Feb. 2025
- May 2025Power The commission certifies the transmission projects, about $117.5M (press) News report · May 2025
- Sept. 11, 2025Power The commission approves a service-area agreement News report · Sept. 2025
- Dec. 29, 2025Site A watchdog names the incentive package the 2025 worst deal of the year (press) News report · Oct. 2026
- Feb. 2026Site Building 1 construction starts (press) News report · May 2026
- April 22, 2026Money Corderill is announced as the first tenant, $100M and 20 jobs State agency · April 2026
- June 24, 2026Permits Mississippi issues the final air permit State agency · June 2026
- Sept. 8, 2026Money The county budget counts on fee-in-lieu revenue from the campus (press) News report · Oct. 2026
- 2032Power Transmission for the campus due in service News report · May 2025
Construction activity
Since April 2026: 1 FAA filing (April 2026). FAA · April 2026
The buildings
Specs
303 acres
site in the I-20/59 park, plus an 8.85-acre state parcel the legislature authorized for sale
- Closed-loop cooling: city water used only for office space News report · May 2026
Who is involved
Owners, partners and builders
Developer and owners
- Compass Datacenters: developer; project entity Compass Datacenters JAN I, LLC
- Brookfield Infrastructure Partners and Ontario Teachers' Pension Plan: platform owners (press)
Power
- Mississippi Power Company: serving utility
- East Mississippi Power Association: co-op whose territory overlaps the park
Decision-makers
- Mississippi Public Service Commission: contract and transmission
- MDEQ Permit Board: air permit
- Lauderdale County and City of Meridian: fee-in-lieu deal
Customer
- Corderill LLC: announced tenant
Still unknown
Open questions
- Hyperscale tenant, if any.
- Contract minimums and exit terms with Mississippi Power.
- Timing of buildings after Building 1.
Where this comes from
129 records from 25 documents
Drawn from news reports, state agency records, public and commercial datasets, securities filings, company statements and court filings, each kept with its date and source. The bar shows documents by type.
News report 13State agency 6Dataset 3SEC filing 2Company 1Court filing 1
Evidence
Every quote behind this page
Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.
Power (27)
- Nearest gas pipeline: 1.14 kmMeasured on OpenStreetMap map data.
- Power plan: grid - PSC-regulated utility special contract; on-site diesel emergency backup only“approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Oct. 2026 · grade B
- On-site generation: not stated“Air | Construction Permit | 1460-00133 | 06/24/2026 | Permit Issued”State agency · June 2026 · grade B
- Project entity: Compass Datacenters JAN I, LLC“approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Feb. 2025 · grade B
- Electric service agreement signed: yes“The Mississippi Public Service Commission (PSC) has officially approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Feb. 2025 · grade B
- Campus name: Compass Meridian Campus“Mississippi Power, Compass Datacenters sign megadeal agreement for new campus in Meridian”Company · Jan. 2025 · grade B
- Developer: Compass Datacenters“signed a nearly 500 MW, long-term agreement with Compass Datacenters to locate its next hyperscale data center campus in Meridian”Company · Jan. 2025 · grade B
- Utility service: 500 MW“Mississippi Power signed a nearly 500 MW, long-term agreement with Compass Datacenters to locate its next hyperscale data center campus in Meridian”Company · Jan. 2025 · grade B
- Utility: Mississippi Power Company (Southern Company)“Mississippi Power, a subsidiary of Southern Company (NYSE: SO), produces safe, reliable and affordable energy for more than 192,000 customers in 23 southeast Mississippi counties”Company · Jan. 2025 · grade B
- First announced: Jan. 9, 2025“Mississippi Power signed a nearly 500 MW, long-term agreement with Compass Datacenters”Company · Jan. 2025 · grade B
- Stated campus size: not stated“Compass told DCD that each building will span 250,000 sq ft (23,200 sqm) with 40MW of IT capacity each”News report · Oct. 2026 · grade C
- Jurisdiction note: MS PSC (state) approves the power contract, transmission certificate and service-area agreement - service terms are state-regulated; Lauderdale County / City of Meridian levers are land use and the fee“authorized a service-area agreement allowing Mississippi Power to serve part of the Compass Data Center in Lauderdale County”News report · Oct. 2026 · grade C
- Compass VP of Campus Strategy addressed resident power and water concerns at a Lauderdale County lunch-and-learn (MSU Riley Center): closed-loop cooling, minimal municipal water draw, and Compass states it pays for the i“We pay for all for all of the infrastructure that's being built for that project”News report · Oct. 2026 · grade C
- Generation-side context ONLY (never a campus MW field): Mississippi Power will build ~500 MW of new generation on its system to serve the Compass load; the campus itself takes grid supply under the special contract“Mississippi Power will build 500 megawatts of new power for Compass”News report · Oct. 2026 · grade C
- large load interconnection request: approved“approve a service-area agreement allowing Mississippi Power to serve certain Compass Data Center facilities in Lauderdale County”News report · Sept. 2025 · grade C
- large load interconnection request: approved“The company sought authority to build about 26 miles of new 230 kV transmission, upgrade about 18.7 miles of existing 230 kV”News report · May 2025 · grade C
- transmission certificate (CPCN): approved“approved the proposed orders for docket numbers ... 2025UA25 (Meridian/Compass Data Center transmission projects)”News report · May 2025 · grade C
- Interconnection status: Contracted and PSC-approved: the Mississippi PSC approved a special contract (electric service agreement) between Mississippi Power Company and Compass Datacenters JAN I, LLC, announced Feb 7, 202“The Mississippi Public Service Commission recently approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”News report · Feb. 2025 · grade C
- large load interconnection request: approved“The Mississippi Public Service Commission recently approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”News report · Feb. 2025 · grade C
- Construction stage: under construction - Compass broke ground in early 2025 on the eight-building campus, to be built over an eight-year period; MDEQ’s final air permit for the backup genset fleet (issued Jun 24, 2026) i“Compass Datacenters has broken ground on its data center campus in Meridian, Mississippi”News report · Feb. 2025 · grade C
- Building sq ft each: 250000 sq ft“Compass told DCD that each building will span 250,000 sq ft (23,200 sqm) with 40MW of IT capacity each”News report · Feb. 2025 · grade C
- Total sq ft planned: 2000000 sq ft“each building will span 250,000 sq ft (23,200 sqm) with 40MW of IT capacity each”News report · Feb. 2025 · grade C
- IT capacity: 320 MW“Compass told DCD that each building will span 250,000 sq ft (23,200 sqm) with 40MW of IT capacity each”News report · Feb. 2025 · grade C
- Utility: Mississippi Power Company (supplying about 500 MW; a dedicated substation was built in the industrial park)“The City of Meridian, Lauderdale County and electrical utility provider Mississippi Power Company are also helping the company”News report · Jan. 2025 · grade C
- Utility service: 500 MW“The city of Meridian, Lauderdale County and electrical utility provider Mississippi Power Company also are assisting with the project. Mississippi Power will supply approximately 500 megawatts of power to the facility”News report · Jan. 2025 · grade C
- Utility service: 500 MW“The city of Meridian, Lauderdale County and electrical utility provider Mississippi Power Company also are assisting with the project. Mississippi Power will supply approximately 500 megawatts of power to the facility”News report · Jan. 2025 · grade C
- $10 billion, eight-building Meridian campus announced Jan 9, 2025: Mississippi Power to supply approximately 500 MW, Mississippi Development Authority assistance and data-center-operator certification, eight-year build-o“Mississippi Power will supply approximately 500 megawatts of power to the facility”News report · Jan. 2025 · grade C
Money and contracts (30)
- land conveyance authorization: parcel 8.85 acres“Property located at 910 Highway 11 & 80, Meridian, Lauderdale County, Mississippi; Parcel #081020000000000402/PPIN#49049 consisting of approximately 8.85 acres”State agency · 2026 · grade A
- land conveyance authorization: price basis“the property be sold for fair market value as determined by the average of two appraisals by qualified appraisers who are certified and licensed”State agency · 2026 · grade A
- land conveyance authorization: closing costs“Compass Datacenters JAN I, LLC, shall pay any and all closing costs related to the acquisition of this property”State agency · 2026 · grade A
- First tenant announced ~15 months after the campus announcement: Corderill LLC (at least $100M of equipment, at least 20 direct jobs, MDA Data Center Incentive approved) - occupancy signal for a speculatively built singl“Technology company Corderill LLC will be a tenant at Compass Datacenters campus in Meridian”State agency · Oct. 2026 · grade B
- Tenants: Corderill LLC“Technology company Corderill LLC will be a tenant at Compass Datacenters campus in Meridian”State agency · April 2026 · grade B
- Tenant status: One tenant announced (Corderill LLC, Apr 2026); no hyperscaler named; buildings designed single-tenant“The Mississippi Development Authority has approved Corderill for its Data Center Incentive”State agency · April 2026 · grade B
- tenant incentive: jobs commitment 20 jobs (minimum)“The project represents a corporate investment of at least $100 million in data center equipment and will create at least 20 direct jobs”State agency · April 2026 · grade B
- tenant incentive: investment 100000000 USD“Technology company Corderill LLC will be a tenant at Compass Datacenters campus in Meridian”State agency · April 2026 · grade B
- electric service agreement (special contract): scope 500 MW“The Mississippi Public Service Commission (PSC) has officially approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Feb. 2025 · grade B
- electric service agreement (special contract): termination“The contract outlines specific terms that will allow Mississippi Power Company to provide reliable energy solutions tailored to the unique requirements of Compass Datacenters”State agency · Feb. 2025 · grade B
- Stated capital cost: 10000000000 USD“The site will represent a corporate investment of $10 billion, including future tenants' information technology equipment”Company · Jan. 2025 · grade B
- Site grants: 4000000 USD“Lauderdale County's ability to work with the Mississippi Legislature for a $4 million site grant, an additional MDA site grant and the city of Meridian's water/sewer investment years ago”Company · Jan. 2025 · grade B
- electric service agreement (special contract): contracted capacity 500 MW“Mississippi Power signed a nearly 500 MW, long-term agreement with Compass Datacenters to locate its next hyperscale data center campus in Meridian”Company · Jan. 2025 · grade B
- electric service agreement (special contract): term“the campus will consist of eight data centers which will be constructed over an eight-year period”Company · Jan. 2025 · grade B
- Platform-level signal (different campus): Compass's Leesburg, Virginia facility paid a nearly $68,000 fine after exceeding emissions limits for multiple pollutants and faces an unresolved high-priority violation, per EPA“a Compass Datacenters facility in Leesburg, Virginia, paid a nearly $68,000 fine after exceeding emissions limits for multiple pollutants”News report · Oct. 2026 · grade C
- Lauderdale County FY27 budget: the Compass fee-in-lieu agreement is expected to generate significant revenue for the county, the City of Meridian and the Lauderdale County School District in the next few years - the firs“It is going to be life-changing, not only for this sitting board but for boards in the future”News report · Oct. 2026 · grade C
- fee-in-lieu agreement: tax terms“A fee-in-leu agreement with the company is expected to generate significant revenue for the county, city of Meridian and Lauderdale County School District”News report · Sept. 2026 · grade C
- fee-in-lieu agreement: statutory ceiling (context)“It reads the fee in lieu statute as allowing as much as a 66 percent property tax break over thirty years”News report · Dec. 2025 · grade C
- service-area agreement: scope“authorized a service-area agreement allowing Mississippi Power to serve part of the Compass Data Center in Lauderdale County”News report · Sept. 2025 · grade C
- transmission certificate (CPCN): scope 117500000 USD“build about 26 miles of new 230 kV transmission, upgrade about 18.7 miles of existing 230 kV, upgrade three substations, and build one new substation”News report · May 2025 · grade C
- transmission certificate (CPCN): cost estimate 117500000 USD“The filing estimates about $117.5 million in capital costs and anticipates acquiring about 60 parcels of right of way”News report · May 2025 · grade C
- transmission certificate (CPCN): deadline“the full program is expected to be in service by 2032”News report · May 2025 · grade C
- transmission certificate (CPCN): cost sharing“part of the project will be funded through customer contributions under the electric service agreement previously approved by the commission”News report · May 2025 · grade C
- Tenant status: none found - Compass develops the campus; no tenant named (investment figure includes future customer IT equipment)“This figure includes the investment of IT equipment by customers, rather than Compass’s individual investment figure”News report · Feb. 2025 · grade C
- Developer owners: Brookfield Infrastructure Partners and Ontario Teachers Pension Plan“Compass was acquired by Brookfield and Ontario Teachers Pension Plan from RedBird Capital Partners and the Azrieli Group in June 2023 for $5.5bn”News report · Feb. 2025 · grade C
- Incentives state: MDA data center operator certification: 10-year state income and franchise tax exemptions; sales/use tax exemption on construction materials, equipment and software/hardware replacements; MDA site-prepa“The Mississippi Development Authority has certified the company as a data center operator, providing Compass with 10-year state income and franchise tax exemptions”News report · Feb. 2025 · grade C
- electric service agreement (special contract): minimum billing“The timeline for the construction and load ramp-up was filed confidentially and not disclosed in the open meeting”News report · Feb. 2025 · grade C
- electric service agreement (special contract): cost recovery“the agreement recovers incremental costs, offers competitive pricing to attract the customer, and will provide a contribution margin above incremental cost that benefits other retail customers”News report · Feb. 2025 · grade C
- state incentive certification: tax exemption 10 years“The Mississippi Development Authority has certified the company as a data center operator, providing Compass with 10-year state income and franchise tax exemptions”News report · Feb. 2025 · grade C
- state incentive certification: sales tax exemption“a sales and use tax exemption on construction materials, equipment and software and hardware replacements”News report · Feb. 2025 · grade C
Permits and government (11)
- MS Senate Bill 2599 (2026) authorizes the Dept. of Finance and Administration to sell the 8.85-acre DPS Troop H headquarters parcel in Meridian to Compass Datacenters JAN I, LLC at fair market value - a state land convey“shall sell and convey real property currently used by and for the benefit of the Highway Safety Patrol as its Troop H Headquarters”State agency · Oct. 2026 · grade A
- Permittee: Compass Datacenters JAN I, LLC, I20-59 Industrial Park, Meridian, Mississippi, Lauderdale County“Compass Datacenters JAN I, LLC; I20-59 Industrial Park; Meridian, Mississippi; Lauderdale County”State agency · June 2026 · grade A
- Air Construction Permit (Permit to Construct Air Emissions Equipment): Issued (final)“Issued: June 24, 2026 Permit No.: 1460-00133”State agency · June 2026 · grade A
- Backup fleet permit: The final permit's emission-point schedule states the backup fleet in the permit's own units: 800-kW emergency gensets numbered 1-400, each with a 6,600-gallon diesel belly tank (facility AN-000), pl“Four hundred (400) 6,600 Gallon-each Emergency Backup Electrical Power Generator Diesel Fuel Belly Tanks (BTs)”State agency · June 2026 · grade B
- air construction permit: issued“Air | Construction Permit | 1460-00133 | 06/24/2026 | Permit Issued”State agency · June 2026 · grade B
- air construction permit: application filed“AI Start: 12/17/2024 | Alt ID 146000133 Compass Datacenters JAN I, LLC Air-Construction”State agency · June 2026 · grade B
- PSC special contract approval: approved“The Mississippi Public Service Commission (PSC) has officially approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Feb. 2025 · grade B
- Mississippi Public Service Commission (open meeting): Approval of special contract - Mississippi Power Company / Compass Datacenters Jan I, LLC (notice filed Jan 9, 2025; Miss. Code 77-3-35, PSC Rule 29)“The Mississippi Public Service Commission (PSC) has officially approved a special contract between Mississippi Power Company and Compass Datacenters Jan I, LLC”State agency · Feb. 2025 · grade B
- service-area certificate: approved“authorized a service-area agreement allowing Mississippi Power to serve part of the Compass Data Center in Lauderdale County”News report · Sept. 2025 · grade C
- Mississippi Public Service Commission: Service-area agreement - Mississippi Power to serve certain Compass Datacenter facilities in Lauderdale County“authorized a service-area agreement allowing Mississippi Power to serve part of the Compass Data Center in Lauderdale County”News report · Sept. 2025 · grade C
- Mississippi Public Service Commission (open meeting): Certificate of Public Convenience and Necessity - Meridian/Compass Data Center transmission projects, Docket 2025-UA-25“The filing estimates about $117.5 million in capital costs and anticipates acquiring about 60 parcels of right of way”News report · May 2025 · grade C
Site and other (16)
- Filing record: Compass Datacenters JAN I, LLC - the campus project entity - has no Form D and no SEC filing; Compass Datacenters, LLC's only Form Ds date to 2012 and 2016; Southern Company's 10-Ks state no Meridian campu“Form D search for "Compass Datacenters JAN" returned 0 documents”SEC filing · Oct. 2026 · grade B
- City: Meridian“I20-59 Industrial Park, Meridian, MS 39301”State agency · June 2026 · grade B
- County: Lauderdale County“AI ID: 87959 | County: Lauderdale | Physical Address: I20-59 Industrial Park Meridian, MS 39301”State agency · June 2026 · grade B
- State: MS“I20-59 Industrial Park, Meridian, MS 39301”State agency · June 2026 · grade B
- Site name: I-20/59 Industrial Park“I20-59 Industrial Park, Meridian, MS 39301”State agency · June 2026 · grade B
- Buildings planned: 8 buildings“the campus will consist of eight data centers which will be constructed over an eight-year period”Company · Jan. 2025 · grade B
- Stage: building on track“The company expects to build roughly one building per year for the next eight years”News report · Oct. 2026 · grade C
- Center for Economic Accountability named the Compass Meridian package its 2025 Worst Economic Development Deal of the Year, citing a decade of state tax exemptions, coordinated local tax breaks, site assistance and poor“exempting the company from state sale and use, corporate income and franchise taxes for the next decade, as well as coordinating local tax breaks, providing site preparation assistance”News report · Oct. 2026 · grade C
- Construction stage: Building 1 under construction (since Feb 2026); site groundwork since Jun 2025; remaining buildings phased ~1 per year“Groundwork began in June 2025, and the first building began construction in February”News report · May 2026 · grade C
- Current target date: 2033“The company expects to build roughly one building per year for the next eight years”News report · May 2026 · grade C
- Jobs permanent stated: 240-300 jobs“each data center building will have roughly 30 full time employees when complete, with a total workforce of around 240-300 employees”News report · May 2026 · grade C
- Water source: City of Meridian water/sewer; closed-loop cooling, municipal draw limited to building office space“Each of those buildings has a small office space, so that's really the only part of the building that's using municipal water”News report · May 2026 · grade C
- Generator set count: 328 units“Compass Datacenters - the data center operator in Lauderdale County - intends to install 328 backup diesel generators”News report · Feb. 2026 · grade C
- Site acres: 303 acres“the Texas multinational would acquire the 303-acre site in the I-20 Industrial Development Park in Meridian”News report · Sept. 2025 · grade C
- Site acres: 303 acres“the Texas multinational would acquire the 303-acre site in the I-20 Industrial Development Park in Meridian”News report · Jan. 2025 · grade C
- Original target date: 2033“the campus will consist of eight data centers which will be constructed over an eight-year period”Company · Jan. 2025 · grade C