PROJECT Operating + construction

TeraWulf Lake Mariner expansion

The operating HPC campus continues its phased expansion. CB4 targets delivery in the second half of 2026 and CB5 in early 2027. These are separate construction and operating capacity figures.

Barker / Somerset, New York102 MW operating and 336 MW under construction, reported August 2026TeraWulf
64-day coverage window Coverage
Linked openings5Project employers in this market
Hiring companies1Within the linked market
Main role phaseOperationsCurrent hiring mix

Project facts

Developer / owner
TeraWulf
Industry
Data centers
Capacity marker
102 MW operating and 336 MW under construction, reported August 2026
Record status
Verified Sep 7, 2026
View project source ↗

Workforce outlook

5 employer openings in this market

Openings are linked by project employer and labor market, so a posting may also serve other sites in the market.

DevelopmentConstructionCommissioningOperations

Project participants

Customer
Fluidstack · Source ↗

Contracted HPC customer; individual building delivery remains phased.

Milestones and targets

August 5, 2026 Reported
Operating and construction capacity update · Source ↗
H2 2026 Target
CB4 delivery · Source ↗
Early 2027 Target
CB5 delivery · Source ↗

Targets reflect published schedules and are not confirmed completions.

Construction progress

Lake Mariner CB-3 onward

Running
About 210 MW in 2 buildings · Epoch estimate, Oct 2026
Planned
About 378 MW in 3 buildings by Mar 2027 · Epoch projection
Oct 31, 2026 Estimate
CB-4 is estimated to be running. TeraWulf had expected to energize it in the third quarter.
Jul 23, 2026 Seen
CB-4 is mostly complete, with backup generators still going in. The next building's shell is complete and its rooftop coolers are half installed.
May 31, 2026 Seen
CB-3 is running: a drone video on May 8 showed its cooling units operating.
Jun 11, 2025 Seen
Land clearing begins for CB-3.
Epoch site page ↗

Lake Mariner CB-1 and CB-2

Running
About 58 MW in 2 buildings · Epoch estimate, Jul 2026
Jul 23, 2026 Seen
Both buildings are still running.
Mar 31, 2026 Estimate
CB-2 is counted as running, following TeraWulf's statement that its second half was due in March.
Mar 2, 2026 Seen
Both buildings appear to have their building and cooling equipment complete.
Oct 1, 2024 Seen
Land clearing begins for CB-1.
Epoch site page ↗

Seen: visible in satellite or drone images. Reported: stated by the company or a public agency. Estimate: Epoch AI’s judgment from progress so far. Building numbers are Epoch’s. Summarized from Epoch AI, AI data centers (updated Nov 1, 2026), CC BY 4.0.

HIRING LINKED MARKET

Current openings.

Open market terminal →
TeraWulf careers Source updated 6 days ago

Procurement Specialist

TeraWulf Barker, NY

this position is $31.00 to $36.00 per hour . Final compensation will be determined based on the selected candidate’s relevant experience, education, qualifications, and overall alignment with the position’s requirements.

Data centers planning $31–36/hr
TeraWulf careers Source updated Aug 26

Relay Technician

TeraWulf Barker, NY

We are seeking a Relay Technician with strong protection and control experience, exceptional troubleshooting abilities, and a safety-first mindset. If you thrive in mission-critical environments where electrical reliability is essential to keeping advanced AI infrastructure online, this is your opportunity to build a long-term career in a high-growth sector.

Data centers infrastructure $33–57/hr
TeraWulf careers Source updated Aug 26

Operations & Maintenance Technician – HVAC Systems

TeraWulf Barker, NY

We are seeking Operations & Maintenance Technicians with strong HVAC experience in critical facilities and industrial environments. This role is ideal for HVAC technicians, refrigeration mechanics, controls specialists, and industrial maintenance professionals who enjoy troubleshooting complex mechanical systems, optimizing equipment performance, and preventing downtime in a fast-paced, technology-driven environment.

Data centers operations $28–45/yr
TeraWulf careers Source updated Aug 26

Operations & Maintenance Technician - Electrician – High Voltage

TeraWulf Barker, NY

We are seeking Operations & Maintenance Technicians with strong electrical experience in high-voltage and critical power environments. This role is ideal for electricians, electrical technicians, power distribution specialists, and industrial maintenance professionals who enjoy troubleshooting complex systems, solving real-world challenges, and preventing downtime in a fast-paced, technology-driven environment.

Data centers operations $28–45/yr
TeraWulf careers Source updated Aug 26

Data Center Operator - Critical Facilities Technician

TeraWulf Barker, NY

We are seeking Data Center Operators - Critical Facilities Technicians with a sharp mechanical eye, elite troubleshooting skills, and clear communication habits. If you thrive in fast-paced environments where hands-on problem-solving directly prevents downtime, this is your opportunity to build a long-term career in a high-growth sector.

Data centers operations $28–34/hr