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Data center campus · Coal Creek Station, 2875 Third Street SW, Underwood, McLean County, North Dakota

Coal Creek Station on-site crypto mining (Adakon Energy Solutions)

Operating as of April 15, 2026

An interruptible, behind-the-meter bitcoin/crypto mining load of about 225 MW run by Adakon Energy Solutions at Rainbow Energy's Coal Creek lignite plant, plus a small Rainbow-owned mining operation. Also known as: Rainbow Energy Center data load.

Cite← North Dakota data centers
Adams CountyBarnes CountyBenson CountyBillings CountyBottineau CountyBowman CountyBurke CountyBurleigh CountyCass CountyCavalier CountyDickey CountyDivide CountyDunn CountyEddy CountyEmmons CountyFoster CountyGolden Valley CountyGrand Forks CountyGrant CountyGriggs CountyHettinger CountyKidder CountyLaMoure CountyLogan CountyMcHenry CountyMcIntosh CountyMcKenzie CountyMcLean CountyMercer CountyMorton CountyMountrail CountyNelson CountyOliver CountyPembina CountyPierce CountyRamsey CountyRansom CountyRenville CountyRichland CountyRolette CountySargent CountySheridan CountySioux CountySlope CountyStark CountySteele CountyStutsman CountyTowner CountyTraill CountyWalsh CountyWard CountyWells CountyWilliams CountyCoal Creek Station on-site crypto mining (Adakon Energy Solutions) · Operating · 225 MW
Power225MW reported · stated

Who is behind it

ProjectCoal Creek Station on-site crypto mining (Adakon Energy Solutions)Also: Rainbow Energy Center data load
Developer and teamAdakon Energy Solutions
Rainbow Energy Center (through Rainbow Energy Center, LLC)
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. The Minot Daily News, reporting a Rainbow talk, described Adakon as a 225 MW crypto mining operation that can ride through power interruptions, which Rainbow said lets Coal Creek run at full output whatever the market demand. (Minot Daily News, April 15, 2026)

  2. Rainbow listed Adakon Energy Solutions as an interruptible, behind-the-meter crypto mining customer of 225 MW and its own mining at 4 MW, and showed two planned data expansions of 285 MW and 130 MW to be served by Coal Creek through the Rainbow substation. (Rainbow Energy Center (to ND Legislative Management, Energy Development and Transmission Committee), Nov. 6, 2025)

  3. Data Center Dynamics reported that a 200 MW data center already ran on the plant site, powered directly by Coal Creek. (Data Center Dynamics, July 8, 2025)

Conflicts and open questions

  • Coordinates approximate, placed at Coal Creek Station.
  • Whether the planned 285 MW and 130 MW expansions sit on the plant site or in the adjoining Rainbow Energy Park was not stated; they are noted here because Rainbow listed them with the plant's own loads.
  • Start date of the Adakon operation not found in a record opened.

The full record

Power note
Rainbow's November 2025 presentation and April 2026 reporting give 225 MW for Adakon; July 2025 reporting described an existing 200 MW data center at the plant. Rainbow listed its own 4 MW mining operation separately.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.