Reference Projects Pipelines and Plants

Pipeline Construction

Etzel–Wardenburg Loop Pipeline (EWA) Lot 1

Pipework and civil engineering works for the construction of the H₂-compatible pipeline from Etzel to Wiefelstede, including the construction of the Etzel, Friedeburg, Bockhorn and Wiefelstede stations.

Client: 
Open Grid Europe GmbH

Construction Period: 
2024–2026

Route Length: 
35.3 km (DN 1200, DP 100)

AUGUSTA Gas Transmission Pipeline

Construction of the pig-cleanable AUGUSTA gas transmission pipeline from Wertingen to Kötz, running parallel to the existing SV50 gas pipeline (H2-ready)

Client:
bayernets GmbH

Construction Period:
2025

Route Length:
40.5 km (DN 700, DP 100)

Construction of the Sestino–Minerbio Long-Distance Gas Pipeline, Lot 4, Italy

Pipe and civil engineering works for the construction of the hydrogen-ready pipeline TENP III lots 1 - 4, including the deconstruction of the existing TENP I pipeline and the construction of a pigging station.

Client: 
Snam Rete Gas S.p.A.

Construction Period: 
2025–2026

Route Length: 
45 km (DN 1200, DP 75) 
Route of Lot 4: Cesena – Alfonsine (45 km)

Crossings:

  • 60 jacking operations with casing (DN 1400)
  • 3 microtunnels (concrete)
  • 2 HDD crossings
  • 7 ball valve stations

Long-Distance Gas Pipeline TENP III

Pipe and civil engineering works for the construction of the hydrogen-ready pipeline TENP III lots 1 - 4, including the deconstruction of the existing TENP I pipeline and the construction of a pigging station.

Client:
Trans Europa Naturgas Pipeline GmbH & Co. KG

Construction Period:
2022 - 2025

Total Route Length:
110.3 km (DN 900 and DN 1000, DP 70)

Wilhelmshaven Pipeline Link (WAL) and WAL II

Construction of hydrogen-ready pipeline link WAL and WAL II to connect the existing natural gas network at the Etzel storage facility to Germany's first two LNG terminals in Wilhelmshaven.

Client:
Open Grid Europe GmbH

Construction Period:
2022 - 2023

Total Route Length:
14.3 km (DN 1000, DP 100)

LNG Transport Pipeline Wilhelmshaven-Leer (GWL)

Construction of the hydrogen-ready LNG transport pipeline GWL lot 1 between Sande and Westerstede, including connection to the WAL pipeline system.

Client:
EWE Netz GmbH

Construction Period:
2023 - 2024

Total Route Length:
31.9 km (DN 600, DP 100)