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Wind turbines, cables and trenches: Is another way possible?  

Credit:  Stuart Anderson | Eastern Daily Press | December 5, 2021 | www.edp24.co.uk ~~

With a decision due this week on whether a major East Anglian wind farm can go ahead, the industry and local opponents are as far apart as ever. But their dispute centres on one particular issue. STUART ANDERSON tries to get to the bottom of it

Within five days we can expect a decision from business secretary Kwasi Kwarteng on whether to allow the Boreas windfarm off the Norfolk coast to be built.

If he says yes, it is likely to also mean another equally vast project, Vanguard, also gets approval.

Given his boss, Boris Johnson, has said he wants the UK to be the Saudi Arabia of wind power, the company behind both schemes, Vattenfall, could perhaps be forgiven for feeling a little confident.

But across Norfolk many are deeply apprehensive about the decision and fear the consequences.

Eighty five parish councils have written to the minister expressing their opposition.

Their concern is not about the construction of turbines off the coast, but the impact the schemes will have on land. An unnecessary impact, they say.

To get their electricity generated by the farms into the National Grid, Vattenfall want to build a trench across Norfolk from Happisburgh to Necton, which would cross over another planned trench for a wind farm planned by the firm Orsted, to run from Weybourne to Swardeston.

And critics claim that is just for starters. They worry more trenches would eventually need to be dug for further projects.

The wind industry say these are vital. Those critics insist there is another way.

They have been calling for the industry to pursue something called an Offshore Transmission Network (OTN) or Offshore Ring Main, which they say could save the UK taxpayer billions of pounds, preserve agricultural land and protect the environment, as the act of digging trenches in itself releases carbon.

Ray Pearce – whose home near Reepham is in the path of two planned cable corridors – says more than one trench not need to be dug at all, if an ‘offshore hub’ was built instead.

He said: “It is possible because Vattenfall do it themselves in the Netherlands. This technology exists, so I think they’re being disingenuous by saying it’s in development.

“An OTN would be far more efficient because there would be far less energy loss using a single cable run.

“[Vattenfall] are building barriers they know don’t exist.”

It is a seemingly simple alternative. But that, of course, is not how Vattenfall see it. Dr Catrin Ellis Jones, its head of community and stakeholder engagement, says it would take at least 10 years to develop the technology needed for an OTN.

She says that the Dutch wind farms Mr Pearce referred to were only third the size of those planned for Norfolk, much closer to the coast, and used an alternating current (AC) system – all reasons which made the system viable over there, but not here.

“Another big difference is that in the Netherlands the government takes responsibility for the transmission, but in the UK, the developers do that,” she adds.

“So the question with having a joint connection that different developers can plug into is: who builds that first?

“We need a regulation change and a huge step up in technology, and it’s projects like Vanguard and Boreas that are pushing that forward.”

The company has to convince the community though.

Jenny Smedley is leader of the Necton Substations Action Group, whose village would be home to a large substation Vattenfall needs to connect to the grid.

She says the industry should focus their efforts on offshore hub. “Rather than building cables and substations every few years, why not build something much more sustainable – connect several wind farms to one substation that could be offshore on an island? Why can’t they be pathfinders instead of destroyers?”

One of the parish councils which recently put its name to a letter urging the government to delay giving Vattenfall the green light until an offshore hub was developed was East Ruston.

Chairman, Heath Brooks, said they backed the letter partly out of solidarity with places like Necton.

Mr Brooks said: “We feel it will be an unnecessary upheaval because a ring main could have served the purpose. But they needed to get their fingers out some time ago.”

Peter Howe, chairman of the parish council at Hoveton, which also signed the letter, added: “Dealing with the problem out at sea rather than disrupting people ashore would seem to be sensible, if it can be done.”

Source:  Stuart Anderson | Eastern Daily Press | December 5, 2021 | www.edp24.co.uk

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

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