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CARTIS

Lefdal Mine Data Center

Lefdal near Måløy, Nordfjord, Vestland, NorwayPartially operational
Evidence
Planned critical IT
90 MW
Updated
Oct 28, 2026

Lefdal Mine Data Center operates inside a former mine near Måløy and is expanding data halls across a six-level, 75-chamber campus. The site reports 10 MW in operation, 20 MW reserved for customers, 80 MW available power and up to 200 MW potential, alongside fjord-water cooling and renewable electricity.

Capacity

Power potential

Planned / design or future potential

Up to 200 MW

Full mine potential · Phase

Phase scope; not a whole-site figure

Source

Level 3 capacity

Planned / design or future potential

80 MW

Source

Operating IT capacity

Actual

10 MW

Source

Reserved customer power

Actual

20 MW

Source

Available power

Actual

80 MW

Source

Added power capacity

Actual

60 MW

80 MW available-power expansion · Phase

Phase scope; not a whole-site figure

Source

Reinforced last mile capacity

Forecast

200 MW

Source

Installed cooling capacity

Actual

90 MW

Source

Heat exchanger module capacity

Planned / design or future potential

7.5 MW

Source

Future cooling capacity

Planned / design or future potential

200 MW

Full mine potential · Phase

Phase scope; not a whole-site figure

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Operating mine campusOperational

Shared mine campus; individual customer halls are deployments, not separately named public facilities.

80 MW available-power expansionPlanned

Electrical availability; 20 MW was reported reserved for current customers and should not be conflated with live IT load.

Continuous customer-hall buildoutOperational

Customer-triggered halls averaging about 700 m² are built within the mine.

Full mine potentialPlanned

Ultimate physical and electrical potential, not delivered capacity.

Milestones (5)
Lefdal enters operations

2017 · Recorded actual event

Completed · Commercial operation

Source not linked
CT ESIF acquires majority interest

May 6, 2020 · Recorded actual event

Completed · Financing

Source not linked
Lefdal details ongoing data-hall expansion

Nov 5, 2024 · Recorded actual event

Completed · Status changed

Source not linked
BNP Paribas selects Lefdal

Oct 13, 2025 · Recorded actual event

Completed · Customer commitment

Source not linked
Available power increases from 20 to 80 MW

Date not disclosed · Recorded actual event

Completed · Capacity revised

Source not linked

Participants

BNP Paribas

Customer

Sources by role
Customer (1)
Columbia Threadneedle European Sustainable Infrastructure Fund

Investor

Sources by role
Investor (1)
Lefdal Mine Data Centers

Operator

Sources by role
Operator (1)
Operator (1)
Mercedes-Benz Group / Daimler

Customer

Sources by role
Customer (1)
Professor Friedhelm Loh

Investor

Sources by role
Investor (1)
Sigma2

Customer

Sources by role
Customer (1)
Other participants (4)
IBM

Supplier

Sources by role
Supplier (1)
Infosys

Supplier

Sources by role
Supplier (1)
Move AS

Supplier

Sources by role
Supplier (1)
Rittal

Supplier

Sources by role
Supplier (1)

Capital & incentives

Capital claims and financing records may overlap. Their amounts are not added together.

Capital claims

Typical hall investment

Reported rounded

NOK 250–300 million

Continuous customer-hall buildout · Phase

Source

Financing records

Investment commitment

NOK 250,000,000

Nov 5, 2024

Operator reports each typical customer hall involves about NOK 250–300 million. This lower-bound record is construction-cost context, not a financing close or amount for every hall.

Parties & sources

Lefdal Mine Data Centers (Other)

Sources (1)

Investment commitment

NOK 300,000,000

Nov 5, 2024

Upper bound of the same typical-hall investment range; no hall count or funding instrument is inferred.

Parties & sources

Lefdal Mine Data Centers (Other)

Sources (1)

Site & development

Typical hall floor area

Reported rounded

700 square meters approx

Continuous customer-hall buildout · Phase

Source

Development horizon

Forecast

7–10 Years from November 2024

Continuous customer-hall buildout · Phase

Source

Technical specifications

Grid voltage

Actual

132 kV

Source

Seawater temperature

Design

8 degrees C

Source

Seawater intake depth

Design

100 meters

Source

Local power source

Actual

100% Local power production described as renewable

Source

Additional project facts

Operational since

Actual

2017

Source

Facility form

Actual

Data center inside a former mine near Måløy on Norway's west coast

Source

Mine levels

Design

6 levels

Source

Mine chambers

Design

75 chambers

Source

White space potential

Forecast

120,000 square meters up to

Full mine potential · Phase

Source

Heat exchangers

Design

12 modules

Source

PUE lower bound

Reported rounded

1.08 PUE

Source

PUE upper bound

Reported rounded

1.15 PUE

Source

WUE

Actual

0 WUE

Source

Ct esif shareholding

Actual

66.67 percent

Source

Other main shareholder

Actual

Professor Friedhelm Loh

Source

Customer deployment

Actual

BNP Paribas selected Lefdal for HPC capacity needs

Source

Customer deployment

Actual

Mercedes/Daimler HPC workloads moved through Infosys Green Data Center as a Service

Source

Customer deployment

Actual

Sigma2 NIRD research data storage

Source

Nird storage capacity

Actual

32 PB

Source

Nird storage expandability

Forecast

70 PB up to

Source

Infrastructure & permits

Technical details (15)
Electric grid

Reported context

10 MW in operation

Current HPC page statement; distinct from 20 MW reserved and 80 MW available electrical power.

Electric grid

Reported context

20 MW reserved

Reserved for current customers; does not prove simultaneous operating IT draw.

Electric grid

Operational

80 MW available

Available electrical capacity after a 60 MW expansion from 20 MW.

Electric grid

Reported context

80 MW level capacity

Level 3 design statement; not treated as additional to the campus's 80 MW available power.

Electric grid

Planned or represented

200 MW potential

Ultimate mine-campus potential; not delivered or reserved capacity.

Electric grid

Operational

132 kV

Direct connection to the regional grid through operator-owned transformers.

Electric grid

Planned or represented

200 MW

Last-mile grid reinforced for 200 MW with separated entries; transformer installation remains modular.

Cooling system

Operational

90 MW cooling

Twelve modular 7.5 MW heat exchangers on Level 3 total 90 MW cooling.

Cooling system

Planned or represented

200 MW redundant cooling

Next cooling level is intended to support 200 MW redundant capacity.

Cooling system

Reported context

8 degrees C

Year-round seawater source for heat exchangers.

Cooling system

Reported context

100 meters

Redundant piping draws fjord water from about 100 m depth.

Site facility

Planned or represented

1.08 PUE lower bound

Operator range is 1.08–1.15 depending on cooling technology, UPS configuration and scale; not an observed annual average.

Site facility

Planned or represented

1.15 PUE upper bound

Upper bound of the operator's configuration-dependent PUE range.

Cooling system

Reported context

50 kW per rack up to

Air-cooling capability; direct liquid and immersion can support higher densities but no normalized ceiling is imported.

Cooling system

Reported context

0 WUE

No evaporative cooling; operator reports WUE zero. Treat as claimed design/operation metric, not independently measured.

Project map

Project map

1 of 1 project point mapped
Infrastructure facts
15
Mapped records
1
Capacity figures
15
90° N90° S0°
Lefdal Mine Data Center15 facts · updated 2026-10-28
Power & interconnection: 7Cooling & water: 6Site systems: 2

Public-source research. Plans may change. See Evidence for sources and qualifications.