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MendoCoastCurrent, July 26, 2010

The Technology Strategy Board funding follows the support given earlier this month to AWS Ocean Energy by the Scottish Government’s WATERS programme (Wave and Tidal Energy: Research, Development and Demonstration Support).

Funding will further develop AWS Ocean Energy’s AWS-III, a ring-shaped multi-cell surface-floating wave power system.

The funding from the Technology Strategy Board is part of a £7m million funding package awarded to 9 wave and tidal stream research and development projects.

Simon Grey, Chief Executive of AWS Ocean Energy, says: “This latest funding is very welcome as we continue to develop our AWS-III wave energy device.

“Our trials on Loch Ness will restart in September for a 6 week period and thereafter a detailed assessment of the trial results will be undertaken before we start building and then deploy a full-scale version of one of the wave absorption cells.”

A single utility-scale AWS-III, measuring around 60 m in diameter, will be capable of generating up to 2.5 MW of continuous power.

AWS Ocean Energy says it is seeking industrial and utility partners to enable the launching of a 12-cell, 2.5 MW pre-commercial demonstrator in 2012 and subsequent commercialisation of the technology.

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The Engineer UK, July 6 2010

Aquamarine Power and AWS Ocean Energy today secured approximately £4.39m to continue development of their wave energy devices.

The WATERS fund (Wave and Tidal Energy: Research, Development and Demonstration Support) has provided Aquamarine Power with more than £3m to develop its 2.4MW Oyster demonstration project in Scotland while AWS Ocean Energy received £1.39m to develop its AWS-III surface-floating wave power device.

Phased installation of the Oyster 2 project will begin at the European Marine Energy Centre (EMEC) in Orkney in Summer 2011. In-depth coverage of Oyster from The Engineer’s 2009 Awards Supplement can be read here.

The Oyster demonstration project will consist of three 800kW hinged flaps, each measuring 26m by 16m. The flaps are moved by the motion of near shore waves, which in turn drive two hydraulic pistons that push high-pressure water onshore to drive a conventional hydro-electric turbine.

Oyster 2 Wave Energy Converter

Aquamarine Power claims each flap will deliver 250 per cent more power than the original Oyster prototype, which was successfully deployed at EMEC in 2009.

The three devices will be linked to a single onshore 2.4MW hydro-electric turbine. The new devices incorporate modifications that are expected to facilitate the production of more energy, be simpler to install and easier to maintain.

AWS Ocean Energy will use its funding to further develop the AWS-III device, a ring-shaped, multi-cell, surface-floating wave power system.

It is claimed that a single utility-scale AWS-III, measuring around 60m in diameter, will be capable of generating up to 2.5MW of continuous power.

Scale testing of the AWS-III on Loch Ness is currently being carried out to provide design data and confirm the AWS-III’s commercial potential.

The £15m WATERS scheme, which is run and administered by Scottish Enterprise, has been designed to support the construction and installation of pre-commercial full-scale wave and tidal stream device prototypes in Scottish waters.

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BBC News, June 11, 2010

A renewable energy company has gone “back to the future” to develop a device to harness power from waves.

AWS Ocean Energy chief executive Simon Grey said its prototype AWS-III on Loch Ness had evolved from “forgotten” technology first seen in 1985.

He said the device could eventually be used in the Northern Isles.

The technology was also tested on Loch Ness in the 1980s, but the Conservative government of the time suspended the wave energy programme.

Highlands Liberal Democrat MP and chief secretary to the Treasury, Danny Alexander, has visited the test site.

He said the progress being made by the company was impressive.

Mr Grey said Inverness-based AWS Ocean Energy was exploring the idea of a machine which had rubber rather than steel components.

Further research led to staff uncovering the similar concept from the 1980s.

He said: “We discovered that the work done in 1985 was rated as the most promising by the Department of Energy at the time.

“We have since taken that design and evolved it further so it is more cost effective in terms of producing power.”

EIGHTIES REVISITED

  • AWS Ocean Energy is updating technology first tested in 1985
  • The Conservatives were also in government at the time
  • Government was funding “green” energy projects then as it is today
  • The film Back to the Future was released in 1985

Mr Grey said the wave energy programme in the 1980s was fully funded by the UK government but the work was later suspended.

He said: “When interest in wave energy re-emerged people assumed that because it hadn’t happened in the past then those ideas wouldn’t work and they had to find new ideas.”

The chief executive said AWS-III was a re-working of a concept people had “forgotten about”.

The ring-shaped machine on Loch Ness is one tenth of the size of the device that could eventually be generating electricity on a commercial scale.

Full-scale machines could be deployed in the sea around Orkney and Shetland following further tests in 2012.

Investment of £2.3m was secured from the Scottish government to develop the AWS-III.

In 2008, AWS Ocean Energy said it had set its sights on winning the world’s largest prize for marine energy innovation.

It said it planned to double its workforce in 12 months, in part to improve its chances of securing the Scottish government’s Saltire Prize.

Following a visit to the test site on Loch Ness, Mr Alexander said: “Power from our seas can make a significant contribution to our energy security and the future of our environment.”

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BBC News, November 24, 2009

Three UK groups studying climate change have issued a strong statement about the dangers of failing to cut emissions of greenhouse gases across the world.

The Royal Society, Met Office, and Natural Environment Research Council (Nerc) say the science of climate change is more alarming than ever.

They say the 2007 UK floods, 2003 heatwave in Europe and recent droughts were consistent with emerging patterns.

Their comments came ahead of crunch UN climate talks in Copenhagen next month.

‘Loss of wildlife’

In a statement calling for action to cut carbon emissions, institutions said evidence for “dangerous, long-term and potentially irreversible climate change” was growing.

Global carbon dioxide levels have continued to rise, Arctic summer ice cover was lower in 2007 and 2008 than in the previous few decades, and the last decade has been the warmest on average for 150 years.

The best thing we could do is to prepare for the worst. Build better flood defences in vulnerable areas Lee, Bracknell

Persistent drought in Australia and rising sea levels in the Maldives were further indicators of possible future patterns, they said.

They argue that without action there will be much larger changes in the coming decades, with the UK seeing higher food prices, ill health, more flooding and rising sea levels.

Known or probable damage across the world includes ocean acidification, loss of rainforests, degradation of ecosystems and desertification, they said.

In 2007, the Intergovernmental Panel on Climate Change (IPCC) warned that the world faced more droughts, floods, loss of wildlife, rising seas and refugees.

But Professor Julia Slingo, chief scientist of the Met Office, Professor Alan Thorpe, Nerc’s chief executive, and Lord Rees, president of the Royal Society, said cutting emissions could substantially limit the severity of climate change.

Copenhagen summit

Prof Slingo told BBC Radio 4’s Today programme the importance of the statement was that “it emphasises that whilst global mean temperature changes may not sound very large, the regional consequences of those are very great indeed”.

She said: “As the inter-governmental panel on climate change stated very clearly in 2007, without substantial reductions in greenhouse gas emissions we can likely, very likely, expect a world of increasing droughts, floods, species loss, rising seas [and] displaced human populations.

“What this statement says very clearly is that some of those things, whilst we can’t directly attribute them at the moment to global warming, are beginning to happen.”

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MendoCoastCurrent, October 30, 2009

oyster_prototype_device_aquamarine_powerJust last week in Scotland the Oyster from Aquamarine Power passed a crucial test and is no longer in locked-down position on the seabed. Now the Oyster moves back and forth in the ocean waves, pumping high-pressure water to its onshore hydro-electric turbine as it readies for full-commissioning.

The Oyster captures energy found in near-shore waves up to depths of 10 to 12 metres and consists of a hinged flap connected to the seabed at around 10m depth. Each passing wave moves the flap which drives a hydraulic piston to deliver high-pressure water to an onshore turbine which generates electricity. The Oyster now goes through commissioning in advance of grid connection as the official switch on by Scotland’s First Minister Alex Salmond is set for on November 20, 2009.

Martin McAdam, Aquamarine Power chief executive said: “We are delighted to have passed this crucial stage in commissioning the world’s very first Oyster wave energy convertor. This major milestone shows that the Oyster does what we have always believed it will do, and we look forward to completing commissioning and producing clean, green energy from Scotland’s waves in the coming months.”

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NAO NAKANISHI, Reuters, October 5, 2009

PelamisWaveFarm_PelamisWavePowerA first attempt fell victim to the crisis: now in the docks of Scotland’s ancient capital, a second-generation scarlet Sea Snake is being prepared to harness the waves of Britain’s northern islands to generate electricity.

Dwarfed by 180 metres of tubing, scores of engineers clamber over the device, which is designed to dip and ride the swelling sea with each move being converted into power to be channelled through subsea cables.

Due to be installed next spring at the European Marine Energy Centre (EMEC) in Orkney, northern Scotland, the wave power generator was ordered by German power company E.ON, reflecting serious interest in an emerging technology which is much more expensive than offshore wind.

Interest from the utility companies is driven by regulatory requirements to cut carbon emissions from electricity generation, and it helps in a capital-intensive sector.

Venture capitalists interested in clean tech projects typically have shorter horizons for required returns than the 10-20 years such projects can take, so the utilities’ deeper pockets and solid capital base are useful.

“Our view … is this is a 2020 market place,” said Amaan Lafayette, E.ON’s marine development manager. “We would like to see a small-scale plant of our own in water in 2015-2017, built on what we are doing here. It’s a kind of generation we haven’t done before.”

The World Energy Council has estimated the market potential for wave energy at more than 2,000 terawatt hours a year — or about 10% of world electricity consumption — representing capital expenditure of more than 500 billion pounds ($790 billion).

Island nation Britain has a leading role in developing the technology for marine power, which government advisor the Carbon Trust says could in future account for 20% of the country’s electricity. The government is stepping up support as part of a 405 million pound investment in renewable energy to help its ambition of cutting carbon emissions by 80% by 2050 from 1990 levels, while securing energy supply. (The challenge is more about getting to a place where we are comparable with other renewable technologies… We want to get somewhere around offshore wind,” said Lafayette.)

Britain’s Crown Estate, which owns the seabed within 12 nautical miles of the coast, is also holding a competition for a commercial marine energy project in Pentland Firth in northern Scotland.

Besides wave power, Britain is testing systems to extract the energy from tides: private company Marine Current Turbines Ltd (MCT) last year opened the world’s first large-scale tidal turbine SeaGen in Northern Ireland.

DEVELOPING LIKE WIND

wave_power_pelamis“We are often compared to the wind industry 20 years ago,” said Andrew Scott, project development manager at Pelamis Wave Power Ltd, which is developing the Sea Snake system, known as P2. Standing beside the train-sized serpent, Pelamis’ Scott said wave power projects are taking a variety of forms, which he said was similar to the development of the wind turbine. “You had vertical axis, horizontal axis and every kind of shapes before the industry consolidated on what you know as acceptable average modern day turbines.”

The Edinburgh Snake follows a pioneering commercial wave power project the company set up in Portugal last September, out of action since the collapse of Australian-based infrastructure group Babcock & Brown which held a majority share. “It’s easy to develop your prototypes and models in the lab, but as soon as you put them in water, it swallows capital,” said John Liljelund, CEO of Finnish wave energy firm AW-Energy, which just received $4.4 million from the European Union to develop its WaveRoller concept in Portugal.

At present, industry executives say marine power costs about double that from offshore wind farms, which require investment of around 2-3 million euros per megawatt. Solar panels cost about 3-4 million per megawatt, and solar thermal mirror power about 5 million.

UTILITY ACTION

Other utility companies involved in wave power trials include Spain’s Iberdrola, which has a small experimental wave farm using floating buoys called “Power Take- offs” off the coast of northern Spain. It is examining sites for a subsea tidal turbine project made by Norwegian company Hammerfest Strom.

Countries developing the technology besides Britain include Portugal, Ireland, Spain, South Korea and the United States: about 100 companies are vying for a share of the market, but only a handful have tested their work in the ocean.

Privately owned Pelamis has focussed on wave energy since 1998, has its own full-scale factory in Leith dock and sees more orders for the second generation in prospect.

Lafayette said E.ON examined more than 100 devices since 2001 before picking Sea Snake for its first ocean project, a three-year test: “They have a demonstrable track record … and commercial focus and business focus.”

A single Sea Snake has capacity of 750 kilowatts: by around 2015, Pelamis hopes each unit will have capacity of 20 megawatts, or enough to power about 30,000 homes.

Neither Pelamis nor E.ON would elaborate on the cost of the Sea Snake, but they said the goal is to bring it down to the level of offshore wind farms.

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Hydro Review, August 18, 2009

aquamarine-power_fb8xa_69Off the north coast of Scotland in waters 10 to 12 meters deep, ocean energy developer Aquamarine Power Ltd. has bolted its Oyster wave energy converter to the ocean floor and expects to be generating power by year’s end.

A team of offshore professionals eased the 194-ton converter into the sea at the European Marine Energy Center in the Orkney Islands. “Getting Oyster into the water and connected to the seabed was always going to be the most difficult step,” said Aquamarine CEO Martin McAdam. “Its completion is a real credit to everyone who has worked hard on planning and executing this major engineering feat on schedule.”

The Oyster is designed to capture energy from near-shore waves. The system includes an oscillating pump fitted with double-acting water pistons. Each wave activates the pump, delivering high-pressure water by pipeline to an onshore turbine that generates electricity. All electrical components of the Oyster are onshore, making it durable enough to withstand Scotland’s rough seas, McAdam said.

Marine constructor Fugro Seacore installed the Oyster converter under a $2.9 million contract.

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