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DolWin alpha – Commissioning Support

Project Overview

Service category

Engineering

Services 

On Site & Location

Client

TenneT

Project Phase

Installation & Commissioning
Operation & Maintenance

Duration 

2018 – 2019

Capacity

800 MW

Water Depth

27 m

Scope

Design, fabrication and installation of clamps for the jacket structure subsea including required surveys, project management, documentation, reporting, personnel, divers, vessel provision, material and equipment.

  • Adapting and detailing client concept design to final workable solution
  • Detail structure design and interface management towards certifier and fabrication subcontractor incl. management of single case approval
  • Subcontracting fabrication and supervision thereof
  • Planning of offshore diving and installation campaign
  • Offshore ovality measurements (videogrammetry) of the substructure as preparation for the substructure modification

Offshore execution of the substructure modification supported by divers and ROVs:

  • Site preparations by inspections, dredging and steel surface cleaning and rigging pre-installation
  • Subsea transport of clamps from landing zone to the jacket using airlift bags and hydraulic winches
  • Attachment and fixation of clamps underneath ja

Location

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Since 2023, we have embedded sustainability concepts into our daily operations through an internal awareness initiative. This initiative includes educational materials, practical tips, insights on current topics, and interactive events such as the Green Kayak Tour or excursions on environmental topics. We also prioritize suppliers for after-work and customer events that incorporate ecological aspects, such as the “Energiebunker” in Hamburg Georgswerder. Our daily operations reflect our commitment to sustainability, from an electric company pool car and company bikes to sourcing sustainable electricity and gas. 

Vita Bennet Möller

Managing Director
Elbe1

Bennet Möller, Managing Director of Elbe1 since 2023, initially joined the company in 2016 as a Technical Project Manager. Throughout his professional career he has acquired extensive experience in renewable energy project development and construction across Europe, the US, and APAC regions, consulting on various aspects such as M&A, TDD, EPCI and compliance management  of offshore wind farms. He holds Bachelor’s and Master’s degrees in Industrial Engineering.

Vita Jelte-Steffen Hipp

Managing Director
Elbe1

Jelte-Steffen Hipp, Managing Director of Elbe1 since 2023, has more than 15 years of experience in renewable energy, demonstrated in several international engineering projects, as well as certification, service, and warranty cases. He holds a Master’s Degree in Sustainable Energy Systems from Chalmers (Gothenburg) and a Bachelor’s in Energy and Environmental Engineering from TU Hamburg. 

Vita Alexander Vogel

Managing Director
Con4Mare

Alexander Vogel, holds a diploma in Naval Architecture and has been Managing Director at Con4Mare since 2013. With over 15 years of distinguished experience in the offshore wind industry, he has led international projects in various roles, specializing in Marine Operations and Marine Warranty Survey. Additionally, Alexander is a certified expert for cranes and lifting equipment, as well as in the examination of wire ropes in cranes.

Vita Andreas Puls

Managing Director
Con4Mare

Andreas Puls assumed the role of Managing Director at Con4Mare in 2023. Graduating with a degree in physics and specializing in material science, he shifted to project certification for offshore wind farms in 2011.

With over a decade of experience across various positions, he has spearheaded numerous projects in certification.

Vita Hagen Heesch

General Manager, CTO
SeaRenergy

Hagen Heesch, founder and initial owner of Elbe1 GmbH, joined SeaRenergy in 2019 and was appointed as CTO (ppa) in early 2023, overseeing SeaRenergy’s engineering activities.

With a degree in Civil Engineering, he brings 15 years of offshore wind experience, specializing in design, certification, and permitting consultancy. Before his entrepreneurial career, he worked at DNV-GL.

Vita Natalia Kress

General Manager, COO
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Natalia Kress joined SeaRenergy as General Manager (ppa) in 2017. In early 2023, she was appointed as COO at SeaRenergy, overseeing the Sales & Execution department.

She has 15 years of experience in the offshore industry, especially in the installation and operation phases of offshore wind farms with a particular focus on heavy lift vessels and O&M offshore logistics. 

Vita Jan Boje Steffens

Managing Director
SeaRenergy

Jan Boje Steffens is the co-founder of SeaRenergy. He has more than 30 years of experience in the shipping industry, especially in the segments of breakbulk, heavy lift, and project cargo.

 

Until 2012, Jan was CEO and Partner of the Rickmers Group. Thereafter, he took the post as Managing Director of SeaRenergy.

Johann Philipp - General Manager SeaRenergy

Vita Johann Philipp

General Manager 
SeaRenergy

Naval architect Johann Philipp joined SeaRenergy’s BorWin / HelWin Project Team in September 2011 as an engineering consultant. He formally joined SeaRenergy in January 2013 and became General Manager (ppa) in 2016. 

With more than 20 years’ experience in structural engineering, Johann possesses a wealth of knowledge in conceptual and detailed ship design issues, technical project planning, and marine warranty surveys.

Vita Beispiel

Managing Director
CEO

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Vita Johann Philipp

Managing Director
CEO

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Vita Benjamin Vordemfelde

Managing Director, CEO
SeaRenergy

Benjamin Vordemfelde joined SeaRenergy as Head of Business Development in 2013 and became Managing Director in 2014.

He has extensive corporate experience including 15 years of involvement in the shipping and media industries in the fields of Business Development, Investor Relations, Public Relations, and Asset Management.

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