About Triton Knoll

Offshore Array
Offshore wind turbines at sea

Triton Knoll is an 860MW innogy-owned ‘Round 2’ offshore wind farm.

The site is within one of three selected ‘strategic areas’ around the coast of Great Britain released for offshore wind development by The Crown Estate and the Government in 2003. As a result of the Round 2 tender process, RWE npower renewables (now called Innogy Renewables UK Ltd) was awarded a license to develop a maximum 1,200 megawatt offshore wind farm called Triton Knoll.

Triton Knoll has been consented in two phases: the offshore array was granted consent in July 2013 and the electrical system in September 2016. Triton Knoll will be 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.


1 – The offshore array

This includes the 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.

2 – The electrical system

This includes the substation, underground cables, the offshore export cables and electrical compound along the onshore cable route. A Development Consent Order for the electrical system was submitted and accepted by the Planning Inspectorate in 2015. A full examination of the application has been undertaken and completed, ending on 3 March 2016. Consent for the electrical system was granted on 3 September 2016.


Project statistics

Maximum installed capacity Circa 860 MW
No. of turbines Up to 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  Up to 800,000 average UK households1 depending on final installed capacity


Location Map


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.

Offshore and onshore electrical infrastructure would 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.


(1) Energy generation footnote

It is estimated that the average annual generation expected at the site could be equivalent to the approximate domestic needs of an expected minimum of 800,000 average UK households. Energy predicted to be generated by the proposal is derived using wind speeds monitored in the local area and correlated with long term reference data. The energy capture predicted and hence derived homes equivalent figure may change as further data are gathered. Equivalent homes supplied is based on an annual electricity consumption per home of 4100 kWh. This figure is supported by recent domestic electricity consumption data available from The Digest of UK Energy Statistics and household figures from the UK National Statistics Authority.