Projects

Triton Knoll is an 857MW ‘Round 2’ offshore wind farm, owned by innogy (59%), J-Power (24%) and Kansai Electric Power (16%). innogy is building and will operate the project on behalf of the partnership.

Project statistics

Maximum installed capacity

857 MW

No. of turbines

90 x MHI Vestas v164-9.5 MW turbines

Approximate tip height of V164-9.5 MW turbine

187 m (NB; consent granted for maximum installed blade tip height up to 220m)

Potential no. of average homes supplied

At least 800,000 average UK households1

Location

Triton Knoll is within the Greater Wash strategic area, located off the east coast of England, approximately 20 miles off the coast of Lincolnshire and 28 miles from the coast of north Norfolk. This is one of three ‘Round Two’ strategic areas around the coast of Great Britain, which were released for offshore wind development by The Crown Estate and the Government in 2003.

Once constructed, offshore and onshore electrical infrastructure will connect the wind farm to the electricity network. Sub-sea export cables from the offshore wind farm will make landfall just north of Anderby Creek, with the power entering the electricity network at Bicker Fen Substation, near Boston, via a network of underground cabling.

Project Background

At the time of the Round 2 tender process, Innogy Renewables UK Ltd (at the time called RWE npower renewables) was awarded a license to develop an offshore wind farm called Triton Knoll up to a maximum of 1,200 megawatts (MW). Triton Knoll was consented in two phases, but is being constructed and operated as one project.Triton Knoll was successfully awarded a Contract for Difference by the Department for Business, Energy & Industrial Strategy, in September 2017. It achieved Financial Close in August 2018, and onshore construction started in September 2018.

1 – The electrical system

This includes the onshore substation, underground cables and the offshore export cables. An application for a Development Consent Order for the electrical system was submitted and accepted by the Planning Inspectorate in 2015. Following a full examination, consent for the electrical system was granted on 3 September 2016.

2 – The offshore array

This includes the 90 x wind turbines, meteorological masts, offshore substations and the cables that link the wind turbines to the offshore substations. The Secretary of State for Energy and Climate Change granted consent for the offshore array on 11 July 2013.

Decommisioning

Consultation on a draft Decommissioning Programme ended 0n 25 January 2019, with all comments received being reviewed to support the final decommissioning plan. An updated Decommissioning Programme is then submitted to the government’s Department for Business, Energy and Industrial Strategy and, once approved, will be available to view on this page.

Facts & Figures

• Located 27 kilometres off the Suffolk Coast at its nearest point
• 56 wind turbines with a total installed capacity of 353 megawatts (MW)
• Siemens 6.3 MW turbines with a maximum blade tip height of 180.5m above LAT
• 27 to 36 metres water depth
• 56 buried subsea array cables linking the turbines to the offshore electricity platform
• One 33kV/132kV offshore substation
• Two buried subsea export cables, each approximately 45 kilometres in length
• Two 0.85 kilometre onshore cables
• One onshore 132kV substation
• Connected to the National Grid substation at Leiston
• Generating enough energy each year to power up to 380,700 average UK households
• Up to 700 jobs created during construction and around 60 long term, east coast jobs during operation.

Location

Galloper Offshore Wind Farm is located approximately 30km off the coast of Suffolk, close to its sister project Greater Gabbard Wind Farm.

Project construction

Construction of Galloper Offshore Wind Farm started with onshore works in late 2015 with offshore construction getting underway in the summer of 2016. First power was generated by the wind farm in November 2017 and it became fully operational in March 2018.