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Plans for world's first tidal power plant
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Mark



Joined: 13 Dec 2007
Posts: 883
Location: NW England

PostPosted: Thu Feb 13, 2014 11:41 am    Post subject: Plans for world's first tidal power plant Reply with quote

Plans for world's first tidal power plant 'first step' to supplying 10% of UK's electricity:
http://www.edie.net/news/6/World-s-first-tidal-power-plant--first-step--to-supplying10--of-UK-s-electricity-/?utm_source=weeklynewsletter&utm_medium=email&utm_content=news&utm_campaign=weeklynewsletter

Plans for the world's first tidal lagoon power plant have been submitted to planning inspectors today - a first step that could see 10% of the UK's domestic electricity coming from tidal by 2023, according to the designers. If approved, the project will be built in Swansea Bay and will include a 9.5 km long sea wall to capture enough renewable energy from incoming and outgoing tides to power more than 120,000 homes for 120 years.

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Pepperman



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PostPosted: Thu Feb 13, 2014 12:08 pm    Post subject: Reply with quote

Not the first tidal plant (see e.g. Rance in France) but the first tidal lagoon plant as it says in the text.

It's very encouraging and I hope it gets built. Not cheap but very very predictable which is useful. And if multiple lagoons are built around the country then it becomes not far off baseload power because the tides come at different times at different places.
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snow hope



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PostPosted: Thu Feb 13, 2014 12:52 pm    Post subject: Reply with quote

This is very encouraging and there has been a test going on in Strangford Lough, N Ireland for a few years now, http://en.wikipedia.org/wiki/SeaGen

The main problem seems to be developing the technology to be sufficiently robust for such a powerful and corrosive environment.
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adam2
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PostPosted: Thu Feb 13, 2014 1:21 pm    Post subject: Reply with quote

Sounds a good idea and therefore probably wont happen.

Consider the scale of the nimbyfests required, and the enviromental impact assessments, and the consultations with stakeholders, and the calls to build it somwhere else.

Ws not something similar proposed in the Bristol Channel ? but was out nimbyed ?
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Pepperman



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PostPosted: Thu Feb 13, 2014 1:29 pm    Post subject: Reply with quote

Wasn't that the barrage rather than lagoons? I think most of the complaints were down to the impact on ecosystems rather than nimbyism. Lagoons have much lower impact.
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Tarrel



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PostPosted: Thu Feb 13, 2014 1:51 pm    Post subject: Reply with quote

I wonder if it could have a secondary benefit of reducing tidal surges onto the land, much as natural reefs do on pacific islands?

This could be a further argument in its favour.
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Pepperman



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PostPosted: Thu Feb 13, 2014 2:36 pm    Post subject: Reply with quote

Possibly, although it's 'attached' to a relatively small strip of the mainland.

They've got quite a nifty 3D visualisation tool on their website:

http://www.tidallagoonswanseabay.com/fly-through.aspx

It's got pretty modest visual impact imo and the leisure benefits would probably offset a fair amount of nimby responses. If I had my way I'd stick wind turbines on the walls as well.
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fuzzy



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PostPosted: Thu Feb 13, 2014 6:09 pm    Post subject: Reply with quote

FOE did a white paper on tidal lagoons back in 2004. The earliest modern lagoon or barrage design I know of was by the UK gov in the 1930s then 40s, 50s. They were all feasible. Presumably they built Oldbury nuclear power station to stop any more plans, since there is no need for one there.
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Mark



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PostPosted: Tue Dec 02, 2014 1:01 pm    Post subject: Reply with quote

Swansea Bay tidal lagoon given UK government boost:
http://www.bbc.co.uk/news/uk-wales-south-west-wales-30283203

A 1bn plan to build the world's first power-generating tidal lagoon in Swansea Bay has been given a boost as the UK government revealed further discussions with the developers. It has been named in the National Infrastructure Plan published ahead of the chancellor's Autumn Statement. Energy Secretary Ed Davey said it showed the UK government was "serious" about the potential for tidal power. The go-ahead could be given before the general election in May.

'Massive boost'

"Tidal energy is a huge opportunity for Britain," said Mr Davey. "Tidal lagoons alone could provide up to 8% of our power needs, replacing foreign fossil fuels with clean, reliable home-grown electricity. "That's why we're showing investors and developers that we're serious about tidal lagoon potential and have started in-depth discussions for what could become the world's first tidal lagoon." Welsh Secretary Stephen Crabb welcomed progress on the scheme, saying it could give a "massive boost" to the Welsh economy, creating thousands of jobs. "Wales is already home to some of the most cutting edge companies in the world and the country is uniquely placed to pioneer tidal power," he said. "I am a strong supporter of this project and I have long been making the case to my Cabinet colleagues that Welsh innovation should be supporting the next generation of low-carbon technology."

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Mark



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PostPosted: Tue Mar 03, 2015 2:35 pm    Post subject: Reply with quote

World's first lagoon power plants unveiled in UK
http://www.bbc.co.uk/news/science-environment-31682529

The plans now seem to have expanded to six lagoons - four in Wales and one each in Somerset and Cumbria.
There will obviously be some associated environmental impacts, but to me, this seems a far better option than nuclear, coal, fracking et al.....
Could be another bone of political contention for the UK, if a big chunk of England's energy starts to come from Wales....
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emordnilap



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PostPosted: Tue Mar 03, 2015 2:51 pm    Post subject: Reply with quote

Mark wrote:
World's first lagoon power plants unveiled in UK
http://www.bbc.co.uk/news/science-environment-31682529

The plans now seem to have expanded to six lagoons - four in Wales and one each in Somerset and Cumbria.
There will obviously be some associated environmental impacts, but to me, this seems a far better option than nuclear, coal, fracking et al.....
Could be another bone of political contention for the UK, if a big chunk of England's energy starts to come from Wales....


There's a thread on it, Mark.
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Mark



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PostPosted: Wed Mar 04, 2015 4:34 pm    Post subject: Reply with quote

More info here:
http://www.edie.net/news/6/Plans-for-2-8-GW-tidal-lagoon-power-plant-in-Cardiff-unveiled/?utm_source=weeklynewsletter&utm_medium=email&utm_content=news&utm_campaign=weeklynewsletter

Tidal Lagoon Power has submitted an Environmental Impact Assessment scoping report for the Cardiff Tidal Lagoon, which would have a capacity of 1.8GW to 2.8GW. The project will be the UKs first full-scale tidal lagoon power plant, representing a major step towards the delivery of full-scale tidal lagoon infrastructure in the country. Tidal Lagoon Power expects to submit a full planning application for Tidal Lagoon Cardiff, which will include 90 turbines set within a 22km breakwater, in 2017. A decision is expected in 2018. The project follows the Swansea Bay Tidal Lagoon which was developed as a scalable pilot for the sector and is due to receive a planning decision by June 2015.

Mitigating impacts
Tidal Lagoon Power has also confirmed that work is underway to deliver four other full-scale UK tidal lagoons at Newport, West Cumbria, Colwyn Bay and Bridgwater Bay. Together, the national fleet of six lagoons would meet 8% of the UK's total electricity requirement for the next 120 years.
Tidal Lagoon Power chief executive Mark Shorrock said: "There is still a long way to go and many environmental surveys to undertake but we will work in partnership with all nature conservation bodies so as to understand, avoid, minimise and mitigate any environmental impacts."
Steps have been taken to tap into the potential of tidal power in the UK, with a new 'platform' designed in February last year to cut the cost and risks of tidal energy projects and the launch of the DeltaStream device in Wales in August.

In January, David Cameron confirmed his support for the Perpetuus Tidal Energy Centre (PTEC), which will provide the world's first grid-connected tidal array test facility.
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Mark



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PostPosted: Thu Mar 19, 2015 1:03 pm    Post subject: Reply with quote

Budget 2015: Swansea tidal lagoon negotiations 'opening':
http://www.bbc.co.uk/news/uk-wales-politics-31927779

Chancellor George Osborne has said negotiations are opening on a 1bn tidal lagoon scheme in Swansea, in his Budget speech in the House of Commons. The plan would see a giant man-made lagoon generating power to run 120,000 homes for 120 years. Talks will focus on the amount of subsidy the scheme will get from a guaranteed price for its power. In December, Energy Secretary Ed Davey announced "in-depth discussions" on the project had started.

'Fantastic' opportunities
Following confirmation on Wednesday that commercial negotiations had begun, Mr Davey said: "Tidal lagoons could provide 8% of our electricity needs, replacing foreign fossil fuels with clean, reliable home-grown electricity and creating fantastic economic opportunities." His department said the negotiations would establish whether a guaranteed price for power generated by the lagoon would be "affordable and value for money", adding that the project was still subject to a planning decision.

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Mark



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PostPosted: Wed Jun 03, 2015 12:21 pm    Post subject: Reply with quote

World's first tidal-lagoon clean energy scheme prompts environmental row:
http://www.edie.net/news/4/World-s-first-tidal-lagoon-clean-energy-scheme-prompts-environmental-row/?utm_source=weeklynewsletter&utm_medium=email&utm_content=news&utm_campaign=weeklynewsletter

An ambitious project to build the world's first tidal lagoon for generating clean electricity off the coast of Swansea has triggered an environmental row on the south coast of Cornwall. And a second row is brewing, with a Chinese construction group in pole position to win a huge contract to undertake marine works at Swansea Bay, despite key promises by the developers to prioritise local involvement. The Cornish dispute centres on a project to reopen a quarry at Dean near St Kevergne on the Lizard Peninsula, to source at least 3m tonnes of stone for the Swansea project.
Many residents in Dean and St Kevergne, some ocean scientists and all the local candidates in Mays general election oppose the quarry scheme. The Cornish stone would be used to build a six-mile long breakwater in Swansea amid hopes of generating significant shipping volumes in a newly-created marine conservation zone. The quarry project in Cornwall is being proposed by Shire Oak Quarries, a company headed by Mark Shorrock, the chief executive of Tidal Lagoon Power, which is developing the Welsh energy scheme. A Cornwall Against Dean Super Quarry campaign has been set up and Gabriel Yvon-Durocher, senior lecturer in natural environment at the University of Exeter, said the project was the first real test of what it means to be a Marine Conservation Zone, but will also be under intense scrutiny from conservation groups and the marine science community.

In a statement, Tidal Lagoon Power said it would soon appoint a marine works contractor to source and transport rock to the project but denied a decision had been taken to source materials from Cornwall: No decisions have been taken with regards rock supply. Sustainability is designed into the core of the lagoon and we are no less demanding of our supply chain. The developer is expected to award the marine works contract within the next couple of weeks and the project could obtain planning permission as soon as 10 June.

The British company Laing ORourke has just been made preferred bidder for a 200m deal to build a 410-metre turbine house and sluice gate structure for the project, which will create 500 jobs. But the three other companies on the shortlist, with the Chinese frontrunner, to undertake the marine works on the Welsh scheme are foreign, while a major turbine contract has already gone to GE of the US and Andritz Hydro of Austria. Tidal Lagoon Power said it was confident it would meet all its targets: We are resolute in our commitment to deliver a project that maximises long-term employment and investment in the UK. Judge us on our record to date: our turbines will be assembled at a new facility in Wales from a majority of British parts, housed in a structure built by one of the biggest names in UK infrastructure. Swansea Bay is aiming to generate 500 gigawatt hours of electricity a year enough for light and power for 120,000 homes with turbines working 14 hours a day. Key to the wider 1 bn scheme going ahead are negotiations currently underway with the Department of Energy and Climate Change over the level of renewable power subsidy to be made available under the Contracts for Difference mechanism. The government has reiterated its commitment to tidal power, while the Sunday Telegraph reported that ministers planned to bring an early end to subsidies for onshore wind farms, triggering an angry response from the industry. Ian Marchant, former boss of Scottish and Southern Energy and a spokesman for the British Wind campaign group, said: The governments alleged plans to close down the Renewables Obligation regime early for onshore wind beggar belief. If implemented, the government will be compelled to find much more expensive alternative sources of renewable energy to onshore wind, which is by far the lowest cost renewable energy available at scale today in the UK.
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Mark



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PostPosted: Wed Jun 10, 2015 3:33 pm    Post subject: Reply with quote

Swansea Bay tidal power plant approved by DECC:
http://www.edie.net/news/6/Swansea-Bay-Tidal-Lagoon-marine-energy-power-plant-approved/?utm_source=weeklynewsletter&utm_medium=email&utm_content=news&utm_campaign=weeklynewsletter

It's official: Britain will be home to the world's first ever tidal lagoon energy project as Energy Secretary Amber Rudd has granted planning permission for a giant tidal power plant off the coast of Wales. In what has been hailed as a "exciting step" towards harnessing untapped tidal energy sources, the Department for Energy & Climate Change (DECC) has today (9 June) confirmed that the 850m Swansea Bay Tidal Lagoon project will be developed by British firm Tidal Lagoon Power.

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