Polaris Forge 1 expansion
Data center project in Ellendale, North Dakota
Polaris Forge 1 expansion is a data center project in Ellendale, North Dakota, under construction, developed by Applied Digital, with a stated size of 300 MW. Last reported March 16, 2026, from 1 source.
- Status
- Under construction
- Developer
- Applied Digital
- Location
- Ellendale, North Dakota
- Stated size
- 300 MW
- Last reported
- March 16, 2026
- Sources
- 1 source
- Other companies on the job
- 2 companies named, on Ultra
Is it moving?
Permits and filings
- ND DEQ Air Pollution Control Permit to Construct for ELN Generation PlantAir permit · North Dakota Department of Environmental Quality · ACP-18296 v1.0 · Filed · December 4, 2024datacentercensus.com ↗
- MDU electric service agreement for Applied Digital Ellendale loadUtility filing · North Dakota Public Service Commission · Approved · January 1, 2023datacentercensus.com ↗
- Polaris Forge 1 site plan and permitsSite plan · Dickey County Commission · Approvedrealclear.ai ↗
What the sources say
Reported
“That is the expansion project planned for the Polaris Forge 1 project in Ellendale, North Dakota.”
Status
“Polaris already is underway with an expansion that will provide a third building”
Size
“Each 900,000-square-foot building will require 150 MW of power, dovetailing with B&W's 300-MW power systems.”
Buildings
3 buildings (100 MW, 150 MW, 150 MW); fourth 150 MW building funded
Acreage
320 acres
IT load
400 MW contracted; 175 MW live as of June 30, 2026
Utility
Montana-Dakota Utilities; MISO grid operator
Campus potential
Designed to scale to 1 GW
Cooling
Closed-loop direct-to-chip liquid cooling, waterless
Construction start
2022-09-08
Completion
Full capacity mid-to-late 2027
Jobs
350 permanent; 450 construction
Road impacts
County road stability and safety problems tied to construction
Reports behind this page
- Babcock & Wilcox Signs $2.4 Billion Deal to Support Applied Digit... · industrialinfo.com, March 16, 2026
What the full file adds
- General contractorOpen: not named yet
- Electrical contractorOpen: not named yet
- Mechanical contractorOpen: not named yet
- Engineering and commissioningOpen: not named yet
- Power and cooling equipmentOpen: not named yet
- Utility and power supply2 named
- TenantOpen: not named yet
- Investors and lendersOpen: not named yet
- Named builders, suppliers and partners2 companies named on this job besides the developer, each with its source.Ultra
- Buying stage by tradeWhen the electrical, mechanical and other trade work on this job is likely to be bought.Ultra
- ContactsSenior people at the companies on this job, where public pages name them.Ultra
- Video and satellite readingsHow busy the site looks, wherever public drone or news footage or a satellite image of it is found.Ultra
- Spezia's read of the projectIts construction phase, how likely it is to be built and what is holding it back.Ultra
- AlertsAn email the day this project moves.Ultra
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Other data centers in Ellendale and North Dakota
- Applied Digital Polaris Forge 1 - Ellendale AI FactoryUnder constructionSame townEllendaleApplied Digital400 MW
- Polaris Forge 1Under constructionSame townEllendaleApplied Digital400 MW
- Polaris Forge 1-2Under constructionSame townEllendaleApplied Digital150 MW
- Polaris Forge 1-3Under constructionSame townEllendaleApplied Digital150 MW
- Applied Digital AI data center campus in EllendaleUnder constructionSame townEllendaleApplied Digital100 MW
- Polaris Forge IUnder constructionSame townEllendaleApplied DigitalSize not stated
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