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Offshore wind has come a long way in recent years, in large part because of how heavily the UK has invested in the technology. But most of this development has been with conventional wind technology, which requires that the turbines be mounted to the seafloor or lakebed in relatively shallow water.
Floating turbines have been deployed, but so far only in small-scale projects, such as the one built and operated by the Fukushima Wind Offshore Consortium. But that could all change soon, now that Norway's Statoil has been approved to build the first floating wind farm off the Scottish coast. It will be the UK's first floating wind farm and the world's largest to date, with five floating turbines producing 6 megawatts each in waters more than 328 feet deep.
The project, known as Hywind Scotland, will be located near Buchan Deep, approximately 15-18 miles off the coast of Peterhead in Aberdeen. The farm "could eventually generate 135 gigawatt-hours of electricity a year, enough to power nearly 20,000 homes," reports Edie.net.
Statoil is touting its experience in installing and operating floating offshore oil and gas platforms as part of its credentials for the project. "Hywind has been designed as a slender cylinder structure, chosen as the most feasible and economical concept for a floating wind turbine," says Statoil. The company developed and installed the world's first floating full-scale wind turbine in 2009.
The turbines will be "attached to the seabed by a three-point mooring spread and anchoring system" and "are interconnected by cables, one of which exports electricity from the pilot farm to the shore at Peterhead," explains The Guardian.
Floating turbines have many attractive benefits, according to Renewable Energy World:
A key advantage of using floating wind platforms is that they allow developers access to previously inaccessible waters where there is stronger yet less turbulent winds—helping to reduce the overall cost of wind energy.
Another benefit is that floating platforms can generally be commissioned and assembled at the quayside, without the need for heavy-lift jackup or dynamic positioning (DP) vessels, further reducing the cost and risk of deployment activities.
“Eliminating offshore lifting operations also provides for decreased weather window restrictions on installation," says Craig Andrus, Senior VP—Europe at Principle Power.
The fact that foundations are not necessary with floating technology also means that piling activities and sea life disturbance can be minimized—greatly reducing negative environmental impacts. Moreover, reduced geotechnical requirements mean that core sampling is only needed to test the seabed ahead of appropriate anchor selection, as opposed to the necessity of core sampling at every pile site.
According to research from the Carbon Trust, floating wind turbines could reduce the price of offshore wind to less than $150 megawatt-hours (MWh), and larger projects such as Hywind may drop the price even lower to $130-145 MWh. The current average price is $172 MWh.
“Floating wind represents a new, significant and increasingly competitive renewable energy source," Statoil's executive vice president for new energy solutions, Irene Rummelhoff, told The Guardian. "Statoil's objective with developing this pilot park is to demonstrate a commercial, utility-scale floating wind solution, to further increase the global market potential."
"We are proud to develop this unique project in Scotland, in a region that has optimal wind conditions, a strong supply chain within oil and gas and supportive public policies," she added.
You may have heard of Aberdeen in the news, as it is the proposed location of another wind farm: Aberdeen Bay Wind Farm. The project has been stalled for years because Donald Trump, who has a golf resort in Aberdeen, sued the Scottish government over its approval of the wind farm. Trump lost the appeal in June, but he has vowed to appeal before both the UK Supreme Court and the European Courts.
Here's Statoil's explanation of the Hywind Scotland concept:
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Tuna auctions are a tourist spectacle in Tokyo. Outside the city's most famous fish market, long queues of visitors hoping for a glimpse of the action begin to form at 5 a.m. The attraction is so popular that last October the Tsukiji fish market, in operation since 1935, moved out from the city center to the district of Toyosu to cope with the crowds.
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Kristan Porter grew up in a fishing family in the fishing community of Cutler, Maine, where he says all roads lead to one career path: fishing. (Porter's father was the family's lone exception. He suffered from terrible seasickness, and so became a carpenter.) The 49-year-old, who has been working on boats since he was a kid and fishing on his own since 1991, says that the recent warming of Maine's cool coastal waters has yielded unprecedented lobster landings.
The climate crisis is getting costly. Some of the world's largest companies expect to take over one trillion in losses due to climate change. Insurers are increasingly jittery and the world's largest firm has warned that the cost of premiums may soon be unaffordable for most people. Historic flooding has wiped out farmers in the Midwest.
Hawaii's Kilauea volcano could be gearing up for an eruption after a pond of water was discovered inside its summit crater for the first time in recorded history, according to the AP.
'We Should Be Retreating Already From the Coastline,' Scientist Suggests After Finding Warm Waters Below Greenland
By Johnny Wood
The Ganges is a lifeline for the people of India, spiritually and economically. On its journey from the Himalayas to the Bay of Bengal, it supports fishermen, farmers and an abundance of wildlife.
The river and its tributaries touch the lives of roughly 500 million people. But having flowed for millennia, today it is reaching its capacity for human and industrial waste, while simultaneously being drained for agriculture and municipal use.
Here are some of the challenges the river faces.
By Jake Johnson
As a growing number of states move to pass laws that would criminalize pipeline protests and hit demonstrators with years in prison, an audio recording obtained by The Intercept showed a representative of a powerful oil and gas lobbying group bragging about the industry's success in crafting anti-protest legislation behind closed doors.
Speaking during a conference in Washington, DC in June, Derrick Morgan, senior vice president for federal and regulatory affairs at the American Fuel & Petrochemical Manufacturers (AFPM), touted "model legislation" that states across the nation have passed in recent months.
AFPM represents a number of major fossil fuel giants, including Chevron, Koch Industries and ExxonMobil.
"We've seen a lot of success at the state level, particularly starting with Oklahoma in 2017," said Morgan, citing Dakota Access Pipeline protests as the motivation behind the aggressive lobbying effort. "We're up to nine states that have passed laws that are substantially close to the model policy that you have in your packet."
Big Oil is now using its political power to try and criminalize protests of oil & gas infrastructure.— Friends of the Earth (@foe_us) August 19, 2019
"This legislation has potential to punish public participation and mischaracterize advocacy protected by the First Amendment."https://t.co/bmiHjONEhy
The audio recording comes just months after Texas Gov. Greg Abbott signed into law legislation that would punish anti-pipeline demonstrators with up to 10 years in prison, a move environmentalists condemned as a flagrant attack on free expression.
"Big Oil is hijacking our legislative system," Dallas Goldtooth of the Indigenous Environmental Network said after the Texas Senate passed the bill in May.
As The Intercept's Lee Fang reported Monday, the model legislation Morgan cited in his remarks "has been introduced in various forms in 22 states and passed in ... Texas, Louisiana, Oklahoma, Tennessee, Missouri, Indiana, Iowa, South Dakota, and North Dakota."
"The AFPM lobbyist also boasted that the template legislation has enjoyed bipartisan support," according to Fang. "In Louisiana, Democratic Gov. John Bel Edwards signed the version of the bill there, which is being challenged by the Center for Constitutional Rights. Even in Illinois, Morgan noted, 'We almost got that across the finish line in a very Democratic-dominated legislature.' The bill did not pass as it got pushed aside over time constraints at the end of the legislative session."
Many of the state bills restricting the right to protest have been "drafted by companies and passed through groups like ALEC, the secretive group of corporate lobbyists trying to rewrite state laws to benefit corporations over people." @greenpeaceusa https://t.co/ZxpTjWdrwT— Stand Up To ALEC (@StandUpToALEC) May 6, 2019
Reposted with permission from our media associate Common Dreams.