ULTRALINE ENERGY

High-Voltage EPC & Grid Infrastructure Specialists

Transmission • Substations • Cabling • Grid Modernization

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ISO 9001
TÜV
CE

Core Capabilities

Grid-Ready. Field-Tested. Engineered for Critical Power Infrastructure.

Primary Service

Transmission Lines

110–400kV overhead line installation • Twin & quad bundle conductors

LATTICE MONOPOLE HELICOPTER ASSIST

Substation EPC

AIS & GIS switchgear • 380kV capacity • SCADA integration

HV Cabling

400kV XLPE • Directional drilling

Grid Connection

Renewable tie-in • Solar & Wind

Engineering

CAD design • Load analysis

Emergency Response

24/7

Rapid fault clearance & grid restoration • Storm damage repair • Critical infrastructure support

Featured Projects

Delivering critical infrastructure across Europe

Nord-Link Interconnector
Featured

Nord-Link HVDC Interconnector

North Sea • 525kV DC

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Brittany Wind Farm

Brittany Wind Farm Connection

Brittany, France • 63kV

Bavaria Substation

Bavaria GIS Substation

Munich, Germany • 380kV

Solar Grid Integration

Provence Solar Grid Tie-In

Provence, France • 225kV

Alpine Transmission

Alpine Transmission Corridor

Austria • 400kV

Offshore Wind Cable

North Sea Offshore Wind Export Cable

Netherlands • 220kV Submarine

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ULTRA LINES Operational Advantages

Engineered for reliability. Built for performance.

Full EPC Capability

Turnkey execution from design to energization

Own All Heavy Equipment

No subcontracted logistics. We mobilize fast.

Safety Without Compromise

"Zero lost-time incidents across 15 years of high-voltage operations."

HSE Certified

Fast Mobilization

In-House Crews

Cross-Border EU Operations

Seamless deployment across DE, FR, AT, CH, BE, NL

On-Time Delivery

Cost Control

Engineering Precision

CAD-accurate designs with rigorous QA protocols

Technical Capabilities

01 / OVERHEAD LINES

Transmission Lines

Full-scope execution of 110kV to 400kV overhead transmission lines including tower foundation design and installation, steel lattice structure assembly, conductor stringing with tensioning equipment, and complete energization protocols.

  • Twin & quad bundle conductor systems up to 4×500mm²
  • Lattice & monopole tower construction with helicopter assist
  • Composite & glass insulator string assembly with live-line testing
SPEC-OHL-001
SPEC-SUB-002
02 / SUBSTATIONS

AIS & GIS Substations

Turnkey substation delivery from civil works through switchgear installation, power transformer setup, and comprehensive protection system integration.

  • Air-insulated & SF6 gas-insulated switchgear systems
  • Control, protection & metering panel integration
  • IEC 61850 SCADA integration & FAT/SAT commissioning
03 / UNDERGROUND

High-Voltage Cabling

Underground HV cable installation including precision trenching, horizontal directional drilling for obstacle crossings, cable pulling with tension monitoring, factory-trained jointing crews, and GIS/AIS termination works.

  • XLPE & MI cable systems rated up to 400kV AC/DC
  • HDD crossings up to 1,500m & micro-tunneling solutions
  • Joint bay construction, VLF testing & PD diagnostics
SPEC-HVC-003

Our Field Teams

Certified professionals across Germany & France

EU Certified HV Linemen
Licensed Cable Jointers
Authorized Electricians
Work-at-Height Certified
240+
Field Personnel
15
Years Experience
0
Lost Time Incidents

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Get in touch with our engineering team

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Contact

🇩🇪 Germany

Berlin Headquarters

+49 30 1234 5678

🇫🇷 France

Lyon Engineering Hub

+33 4 5678 9012

tenders@ultraline-energy.com

Operating across DE, FR, AT, CH, BE, NL