Kyleness Wind Farm

Wind power from 87 kilometres offshore

3,435 MW across three phases, enough for around 5.7 million homes.

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What we are building

Kyleness sits 87 kilometres off the Northumberland coast, on a shallow bank in the central North Sea. The site covers 619 square kilometres and the water runs between 27 and 44 metres deep. Power comes ashore on the Northumberland coast and joins the transmission network in the south east of the county.

We are building in three phases. Phase A is the largest at 1,215 megawatts across 81 turbines. Phase B follows with 77 turbines and 1,155 megawatts, then Phase C closes the site out at 1,065 megawatts from 71 turbines. Together that is 3,435 megawatts and 229 turbines, which puts Kyleness among the largest offshore wind projects in the UK.

First power from Phase A is due in 2031. All three phases should be running by the middle of 2034.

About the homes figure. The 5.7 million is our own estimate, not a published statistic. We take the full 3,435 megawatts, apply a 51 per cent load factor and divide the annual output by 2,700 kilowatt hours, which is the figure Ofgem uses for a typical household. Change any of those three assumptions and the answer changes, so we publish the working rather than the headline on its own.

Kyleness at full build

3,435 Megawatts of installed capacity
229 Turbines across three phases
2,340 People working at peak construction
2031 First power to the grid
A jack up installation vessel holding a monopile upright on its crane at sea, with turbines already standing behind it.

Foundations first, then everything else

Monopiles, array cables, turbines, commissioning. In that order, weather allowing.

How we build it
Joint venture

Who owns Kyleness

Kyleness is owned by two companies. Both sit on the project board and both put their own people into the delivery team.

Merrowfield Energy

55 per cent

A UK developer with onshore wind and grid connection work behind it. Merrowfield leads consenting, the onshore works and the community programme.

Skarvholm Energi

45 per cent

A Norwegian offshore developer. Skarvholm leads marine construction, vessel contracting and the operations base at Blyth.

Fishing boats tied up in a small harbour at first light, with a line of turbines far out on the horizon.

We are working on somebody's doorstep

A fishing fleet, four harbour towns and a fund that pays out where the cable lands.

Our work onshore

Work for UK firms

A project this size buys a great deal from a great many people. Steel fabrication, marine logistics, cable pull in, port handling, accommodation, catering, waste, survey work, training. Some of that goes to tier one contractors on long framework deals.

A good share of it does not, and that is the part most firms never hear about. We publish packages as they reach the market and we keep a register of companies who want the alert. Registering costs nothing and it does not commit you to bidding for anything.

See the work packages

A technician in overalls and a hard hat working on the yellow transition piece of a turbine, high above a calm grey sea.

Nine years of work, at least

Technicians, coordinators, engineers and liaison roles, run out of Blyth.

Roles on the project