Dig in! Triton Knoll offshore wind farm is now in construction

By Grimsby Telegraph | Posted: 11 Sep 2018

Construction of Triton Knoll offshore wind farm has officially started, with the turf cut on the electrical system to transport the power from the wind farm to UK homes.

The latest renewable energy project to base itself in Grimsby for the long term, the breaking of the ground took place directly on the route of the new high voltage underground export cable, at the main onshore cable site offices off the A16 near Stickney.

The two year onshore construction programme for the 860MW project is being managed by Innogy, lead shareholder.

UK firms J Murphy & Sons Ltd and Siemens Transmission and Distribution Ltd (STDL) have been contracted to build the project, and are already carrying out initial works including the establishment of site offices, temporary construction compounds and bell-mouths at key points along the route.

Read more: Innogy's Grimsby commitment welcomed as Orsted buys up power from new neighbour

Triton Knoll project director Julian Garnsey was joined by Murphy chief executive John Murphy, and STDL’s project director Phil Manley, for the ceremony.

Mr Garnsey said: “Triton Knoll construction is officially up and running.  This moment is the culmination of years of planning, engineering, consultation, and co-operation with our supply chain and stakeholders to produce a state of the art wind farm , which benefits both local and regional economies.

“Triton Knoll is committed to supporting local and regional jobs, skills development and, through our investments, the further strengthening of the UK’s already world-beating offshore industry.

“As we continue to progress through the weeks and months ahead, we and all our contractors look forward to working even more closely with our neighbouring communities, so that local people are aware of our works and how they are progressing.”

From left to right: Phil Manley, Project Director for Siemens Transmission & Distribution; Julian Garnsey, Project Director Triton Knoll Offshore Wind Farm; John Murphy, CEO J Murphy & Sons Ltd.

Innogy recently divested a 41 per cent stake to Japanese energy firms J-Power and Kansai Electric Power.

Onshore construction presents some significant engineering challenges  as it involves more than 57km of underground electrical export cable below ground in Lincolnshire. The route starts at the landfall location north of Anderby Creek, where the onshore and offshore cables connect. It runs to a new substation being constructed near Bicker, and then to the existing National Grid Bicker Fen Substation where the electricity from the offshore wind farm will ultimately connect into the grid. Both are on the outskirts of Boston. 

Read more: Onshore work awarded by key Triton Knoll offshore wind farm contractor Murphy

More than 300 individual directional drills – a record for a UK infrastructure project - will ensure the onshore cables can be installed without obstructing  any roads, highways, rivers or drains.

Mr Murphy said: “The cable route presents an exciting engineering challenge for us and we’ve worked diligently and intelligently to create better engineered solutions that will allow us deliver it with minimum disruption. I’m thrilled to be able to break ground with Triton Knoll and Siemens and kick-start these exciting works. We’re very proud to be working on the Triton Knoll project and with their team who are so firmly committed to leaving a positive legacy in Lincolnshire, an aim we share at Murphy. ”

The company is already engaged with Orsted on Hornsea Project One and Two

Work on the new onshore substation will start early in 2019, with Siemens constructing the new facility. Work is already underway to construct a new bellmouth entry point and 3.8km access road to the new substation construction site to ensure that construction traffic can avoid use of smaller local roads.

Mr Manley said: “This nationally significant project will have a vital role in creating energy security for the UK. As one of the lead contractors, making sure the energy created by Triton Knoll gets to the homes and businesses which need it, we play an important role in this project.”

At its height, the £2 billion project expects to see around 3,000 people working on both onshore and offshore phases of the project, with potentially up to 170 working long term in support of its operations and maintenance activities from Grimsby.

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