Aerial view of a data center cooling system

Energy infrastructure / AI data centers

FESE Group

Solutions From Grid to Rack

Founded in 1985, FESE brings together cable, energy and advanced infrastructure capabilities across more than 170 countries and regions.

Discover FESE

The group

Built for a world that needs more power.

FESE operates across cable networks, energy storage and batteries, and airport engineering. Today, its capabilities also serve the power, cooling and connectivity needs of AI data centers.

With a presence spanning major regions, the group connects industrial scale with specialized infrastructure expertise.

1985Founded
170+Countries & regions
10,000+Employees
$10.3B2025 group revenue
Aerial photograph of data center campuses in Ashburn, Virginia

FESE / Portfolio

Products

01 / 05
High-voltage power cable with layered insulation, metallic screen and stranded copper conductor01 / 05

01 / ENERGY DELIVERY

Cable

From the grid to the facility.

Complete cable systems from the electrical room to the transmission grid — low, medium, high and extra-high voltage — with the termination kits and accessories that connect them.

  • LV · 1,000 V
  • MV · 15 kV & 35 kV
  • HV · 138 kV & 230 kV
  • EHV · 345 kV
  • Termination kits & accessories

LV Power Cable

Copper and aluminum power cable for switchboards, busway feeds, UPS systems and mechanical plant inside the facility.

Voltage class
1,000 V
Conductor
Copper / aluminum
Insulation
XLPE / XHHW-2 type
Format
Single & multi-conductor

Applications

  • Switchboard & UPS feeds
  • Busway tap-offs
  • Mechanical & cooling plant

Technical overview

  • Class B and flexible stranding options for tray, conduit and direct-burial installation.
  • Flame-retardant, sunlight-resistant and low-smoke jackets selected for the installation environment.
  • Cut-to-length reels and pre-terminated sets reduce on-site labor.

Cable nameplate ratings and jacket requirements are confirmed per design.

Next: Power Interconnect
Illustrative rack busbar and AC power whip for AI data center power distribution02 / 05

02 / POWER DISTRIBUTION

Power Interconnect

From power shelf to compute tray.

From rack power input to busbar and compute tray, FESE's documented portfolio includes high-current cabinet connections and busbar-clip cable harnesses.

  • AC power whips & rack input
  • Rack busbar interfaces
  • Busbar clip cable assemblies
  • Server power harnesses & connectors

AC Power Whips

Pre-terminated AC input assemblies carrying facility power into high-density AI rack power shelves.

Input
415 / 480 Vac, 3-phase
Current classes
60A / 100A
Plug options
IP44 / IP67
Lengths
1.5 m to ~20 m

Applications

  • High-density AI racks
  • Power shelf input
  • Liquid-cooled AI pods

Technical overview

  • Right-angle, side-exit and straight-exit options to fit rack routing.
  • Heavy-gauge Type-W cable; optional high-temperature silicone jacket for flexibility.
  • Junction-box input with configurable phase distribution to the power shelf.

Final rating, pinout and certification are confirmed by the selected assembly drawing.

Next: Thermal
Illustrative thermal infrastructure03 / 05

03 / LIQUID COOLING

Thermal

Designed for heat at scale.

Liquid-cooling hardware connects chip-level heat capture with rack and facility distribution for high-density compute.

  • Cold plates & cooling modules
  • Rack and cabinet manifolds
  • Coolant distribution units
  • Prefabricated piping

Cold Plates

Direct-to-chip cold plates that capture heat at the processor and accelerator.

Material
Copper
Structure
Micro-channel
Fit
CPU / GPU modules
Connection
Quick disconnects

Applications

  • GPU accelerators
  • CPUs & switches
  • Custom compute boards
Next: Optical & Signal
Illustrative optical & signal infrastructure04 / 05

04 / DATA CONNECTIVITY

Optical & Signal

The pathways for fast data.

Fiber, optical cable and high-speed interconnect products link equipment across the AI campus, data hall and rack.

  • Optical fiber & ribbon cable
  • Pre-terminated fiber connectivity
  • High-speed copper assemblies
  • Server signal connectors

Optical Fiber & Cable

Fiber and optical cable for campus backbones and data-hall trunks.

Fiber
Single-mode / multimode
Formats
Loose-tube, ribbon
Counts
High fiber count
Rating
Indoor / outdoor

Applications

  • Campus backbone
  • Building interconnect
  • Data-hall trunks
Next: AIDC Solution
Photograph of data center server racks05 / 05

05 / INTEGRATED SYSTEMS

AIDC Solution

The infrastructure around AI compute.

From the incoming power path to the rack, FESE brings together electrical, thermal and connectivity hardware for AI data center projects.

    Grid to Facility

    High-voltage cable systems and accessories bring utility power onto the campus.

    Scope
    HV cable + accessories
    Accessories
    66–500 kV
    Delivery
    Project based
    Support
    Engineering & installation

    Applications

    • Utility interconnect
    • Campus substation
    Next: Contact

    Supply readiness

    Ready for hyperscale programs.

    One partner across power, cooling and connectivity, supporting AI data center builders from first design through volume delivery.

    01

    Engineer

    Application engineering, drawings and custom designs matched to each rack, hall or campus architecture.

    02

    Qualify

    Samples, test reports and documentation to support customer qualification programs.

    03

    Build

    Group-scale manufacturing across cable, power and thermal product lines, from prototype to volume.

    04

    Deliver

    Project delivery and support across more than 170 countries and regions.

    FESE Group / Contact

    Let's connect.

    For cable, power, cooling and connectivity inquiries, reach the FESE team directly.

    General inquiries

    info@fesegroup.com

    FESE Group · Energy infrastructure for a connected world