Semco Maritime and SeaRenergy have secured a service contract with TenneT for offshore grid connection systems and offshore substations in Germany and the Netherlands.
TenneT has awarded the team a five-year service contract for mechanical and electro-technical integrated maintenance of offshore grid connection systems.
These assets comprise offshore and onshore installations and the contract runs from 2023 to 2028.
Following the turnkey construction of an offshore converter platform, the electro-technical, mechanical, structural and automation components must be maintained.
The Mechanical & Electro-technical integrated Contract (MEiC) includes corrective and fault clearance works.
Under the contract, the Semco and SeaRenergy consortium will perform this scope on 13 HVDC grid connection systems in Germany as well as seven HVAC substations offshore in the Netherlands.
“We are excited to join forces with SeaRenergy and sign this important contract with TenneT for maintenance and service work on offshore and onshore installations across Germany and the Netherlands.
“We will combine SeaRenergy’s expertise with TenneT’s assets, our extensive experience from this type of assignments and the combined competencies of the consortium to deliver high-quality services and support TenneT’s operations,” said Semco’s Senior Vice President, Renewables, Jacob Øbo Sørensen.
“The award of this contract after a very intense EU-tender negotiation phase is a milestone in the history of SeaRenergy and Semco Maritime,” added Benjamin Vordemfelde, CEO of SeaRenergy Offshore Holding.


