The route new overhead electricity powerlines will take as they run across the Norfolk countryside has finally been revealed. 

National Grid wants to build a major new 112-mile 400kV line it says is vital to help the UK achieve its ambition of net zero emissions by 2050.

Now, the precise proposed route the line and its supporting pylons will take has been unveiled, running from Dunston, near Norwich, to Tilbury on the Thames estuary. 

An interactive map can be viewed here.

Eastern Daily Press: The full National Grid mapThe full National Grid map (Image: National Grid)

Previously, only a wide corridor had been suggested, giving only a vague idea of where the line would run.

The pylons, which will be 45-50m high, have been controversial, with critics saying the scheme will lead to the "annihilation of the countryside". 

But the company says the scheme is needed to increase supply as demand increases, particularly as the country moves towards more reliance on wind power, much of which will be generated off the Norfolk coast. 

Cables bringing power from the coast will be buried until they reach Norwich.

But the option of digging more trenches for them as they run south through Norfolk has been ruled out as too expensive.

The National Grid says another proposed alternative, the run the lines along the seabed down the coast of East Anglia, would also cost too much.

Campaigners have spoken of their dismay at the detailed map, which has been published today.

Rosie Pearson, from the Essex Suffolk Norfolk Pylons Action Group, said: “What a horrible map that people have had to wake up to this morning. 

“People will be looking to see if they have got a pylon tearing up their gardens, farmers will be looking to see if it will impact their ability to farm and businesses whether they will be disrupted. 

“We are angry at the arrogance of National Grid when there is a better option on the table.  

“There is not a council or MP that wouldn’t say that an offshore grid is a better option. We were told that they would be listening, but they are clearly not.” 

John Fuller, leader of South Norfolk Council, said: “The previous consultation was clearly deficient, parishes weren’t consulted, the impact on listed building and on county wildlife sites were not considered.  

“I think we were led to believe that these omissions would be addressed before they had another go.” 

Mr Fuller supported the call of local MPs for National Grid to reconsider an offshore route saying the route should not be “foisted” on communities. 

A consultation on the plans runs until August 21.

It includes an interactive website, four webinars and face-to-face events in Diss on July 7, Tibenham on July 10 and Tasburgh on July 18. 



From the electricity substation at Dunston the new pylon route initially runs largely parallel to the existing line - around 400 metres to the west of the train line connecting Norwich to London.

It is not until the route gets to Swainsthorpe that the two lines begin to diverge, with the new one heading out towards Mulbarton.

They then run closer together again before dividing where Brickkiln Lane meets Mulbarton Lane. 

It is here the new route begins to head more southwest wards running across the edge of a solar farm towards Long Lane.  

The village of Flordon will be flanked by both routes, with the existing line around 100 metres to the south and the new route 900 metres to the north.

Between Fundenhall and Hapton the line begins to run more southernly before heading more to the west again on Long Stratton Road between Tacolneston and Forncett St Peter.

It is in this area that the route gets closest to homes, coming within about 400 metres of Forncett End. 

As it heads south it runs past Tienham Airfield, which will be surrounded by pylons, with the existing route 1.3km east and the new route about 2km west.

As it runs south the route runs adjacent to Winfarthing and Shelfanger, coming within a few hundred metres of both. 

To avoid running through the centre of Diss at Heywood Road the route heads westwards again towards Bressingham. 

The pylons then run round the west side of Roydon, between the village and the Bressingham Steam Museum. It is here that the two routes are at their most divergent, with around 6km distance between them. 

The route then runs south into Suffolk.