+- +-

+-User

Welcome, Guest.
Please login or register.
 
 
 
Forgot your password?

+-Stats ezBlock

Members
Total Members: 46
Latest: Tony Ryan
New This Month: 2
New This Week: 0
New Today: 0
Stats
Total Posts: 12123
Total Topics: 254
Most Online Today: 2
Most Online Ever: 137
(April 21, 2019, 04:54:01 am)
Users Online
Members: 0
Guests: 0
Total: 0

Post reply

Warning - while you were reading 6 new replies have been posted. You may wish to review your post.
Name:
Subject:
Message icon:

Attach:
Help (Clear Attachment)
(more attachments)
Allowed file types: doc, gif, jpg, jpeg, mpg, pdf, png, txt, zip, rar, csv, xls, xlsx, docx, xlsm, psd, cpp
Restrictions: 4 per post, maximum total size 1024KB, maximum individual size 512KB
Verification:

shortcuts: hit alt+s to submit/post or alt+p to preview


Topic Summary

Posted by: AGelbert
« on: April 30, 2019, 12:39:11 pm »

CleanTechnica
Support CleanTechnica’s work via donations on Patreon or PayPal!

Or just go buy a cool t-shirt, cup, baby outfit, bag, or hoodie.

April 30th, 2019 by Joshua S Hill


 
Posted by: AGelbert
« on: April 16, 2019, 01:07:21 pm »



16 Apr 2019, 14:41 Benjamin Wehrmann #Renewables    #Wind    #Government

Merkel opens Baltic’s largest offshore wind farm as industry warns against slow-down

 
Merkel (back row in centre with red blazer) inaugurates the wind farm together with a group of local children. Photo: E.ON.

The opening of a new offshore wind farm in the Baltic Sea gives Germany's Chancellor Angela Merkel an opportunity to show her climate policy credentials and welcome the German-Norwegian project as a milestone for the energy transition and international cooperation.

But the opening comes at a time when the chancellor faces increasing pressure at home to come up with policies that help bring down Germany's emissions in line with its international climate action obligations. Moreover, the national wind power industry increasingly warns that local resistance and restrictive regulation could well mean that the country's renewables expansion targets are difficult to meet.

Ten years after Germany opened its first offshore wind farm in the North Sea, Chancellor Angela Merkel has opened the country’s newest offshore power station, demonstrating that early doubts about the technology were largely unfounded. In her weekly video podcast, Merkel said she was opening the project to make clear “how important the expansion of renewable energy is for us.”

The Arkona wind farm, named after a nearby cape on the island of Rügen, where Merkel’s constituency is located, was built over the course of three years and is the Baltic’s largest. With a capacity of 385 megawatts, the park built 35 kilometres off the coast could theoretically supply about 400,000 German homes with electricity, according to Equinor. It is operated by energy companies E.ON from Germany and Equinor from Norway, which is why Merkel was accompanied by Norwegian energy minister Kjell-Borge Freiberg at the ceremony.

Merkel said the Arkona wind farm was setting a new standard for the transformation of Germany’s energy system in the Energiewende. “But only changing the way we produce energy won’t be enough,” the Chancellor said, adding that changes in the heating and in the transport sector were also forthcoming.

The wind farm, operated by the utility E.ON, comes at a time when the German government is under pressure to formulate a clear climate policy. German students have been staging weekly “Fridays for Future” school strikes, demanding more action on climate change, and some lawmakers have worried aloud that many future voters could turn their back on the governing parties if Merkel’s government does not act.

At the same time, lawmakers run the risk of alienating voters in mining regions as they strive to implement the seminal agreement from the nation’s coal exit commission, announced this winter. The commission recommended ending coal-fired power generation by 2038 at the latest, and some voters fear their jobs are being sacrificed to fulfill national climate targets.

But there are also signs of progress. Merkel’s inauguration of the wind farm comes just days after Germany’s environmental agency, UBA, announced that the country’s carbon emissions had declined substantially for the first time in years. 👍

It was the steepest emissions drop in ten years - and it was made possible, in part, by the growth of offshore wind. “There used to be a great deal of scepticism at the beginning of the offshore era,” Jörg Buddenberg of energy company EWE told news agency dpa in an article carried by newspaper Süddeutsche Zeitung. Buddenberg said early critics argued that the previously unexplored technology would never work. While offshore wind had to surmount several technical difficulties in its initial stage, Germany now has more than 1,300 operational turbines at sea with a combined capacity of 6.4 gigawatts (GW). Offshore wind farms produced nearly 19 Terawatt hours (TWh) of electricity in 2018. That's about twice the average output per installation of their onshore counterparts, adding up to nearly one fifth of the country’s total wind power generation.

But the wind industry says the technology’s potential still is not fully appreciated, calling for the government to raise the country’s offshore wind expansion target from 15 to 20 GW by 2030 and to 30 GW by 2035. Offshore wind lobby group BWO argues that without the higher targets the government goal of 65 percent renewable power consumption cannot be achieved. According to research institute Fraunhofer IWES, Germany could potentially install up to 54 GW of offshore wind power and generate nearly 260 TWh of electricity at sea. An expansion of that magnitude has drawn skepticism from environmentalists, who worry that turning large swathes of Germany’s territorial waters into industrial zones could have grave consequences for already strained ecosystems in the North and Baltic Seas.

The wind lobby’s calls for greater expansion have been supported by a substantial decrease in the cost of offshore wind power, with the average generation costs per kilowatt hour (kWh) dropping from over 14 cents in 2013 to a little more than 8 cents in 2018. Several zero-support bids in Germany’s first offshore wind power auctions have further supported the conviction that the technology has vast potential for a cost-efficient energy transition.

The new Arkona farm could power up to 400,000 average homes in Germany. Photo - Equinor

But wind power companies and lobby group BWE have complained about the cost pressure created by the auction scheme. In what had been one of the biggest setbacks for a German wind company, turbine producer Senvion filed for insolvency in April. While the company’s demise was seen as partly due to managerial mistakes, news agency Reuters noted that cost pressure meant it could no longer compete with companies that have greater pricing power, such as German-Spanish Siemens Gamesa or Danish Vestas. Newspaper WirtschaftsWoche said despite growing wind power capacity around the world, small and middle-sized companies like Senvion or its fellow German turbinemakers Nordex and Enercon could increasingly face insurmountable difficulties – especially with Chinese companies hoping to make an entry into the German wind power market similar to China's takeover in the solar industry.

Wind power lobby group BWE says international market pressure is not the only obstacle, arguing thatnational regulation also poses an increasing challenge. Rising local resistance to new onshore projects is compounded by uncertainties following the switch to Germany’s renewables auction system. That means that reaching the climate and renewables expansion targets becomes increasingly uncertain, BWE says. In Bavaria, the BWE argues, a strict implementation of the so-called 10H-rule, which stipulates that turbines have to maintain a distance of ten times their height to the next residential area, means that the expansion in the state “has been throttled down to almost zero.”

The 10H-rule established in Bavaria has also been mulled by other state governments in a bid to ease resistance against wind power projects. Germany's environment agency UBA warned that a limit of only 1,000 metres, which would not even be enough for many of the new powerful but also very high turbines,  would reduce the land available for turbines by 20 to 50 percent. This would render a sufficient expansion of wind power to meet Germany's climate targets “almost impossible”.

All texts created by the Clean Energy Wire are available under a “Creative Commons Attribution 4.0 International Licence (CC BY 4.0)” . They can be copied, shared and made publicly accessible by users so long as they give appropriate credit, provide a link to the license, and indicate if changes were made.

https://www.cleanenergywire.org/news/merkel-opens-baltics-largest-offshore-wind-farm-industry-warns-against-slow-down


Posted by: AGelbert
« on: April 15, 2019, 03:15:44 pm »

Posted by: AGelbert
« on: March 20, 2019, 09:16:56 pm »

EcoWatch

By Olivia Rosane Mar. 19, 2019 02:17PM EST


Study: Americans Are Happy to Let Wind Turbines Be Their Neighbors

Americans like wind turbines as neighbors, at least when compared with the alternatives.

That's the conclusion of a University of Delaware (UD) study published in Nature Energy Monday. UD Prof. Jeremy Firestone and undergraduate Hannah Kirk looked at data from a survey of people who lived within eight kilometers (approximately five miles) of a wind turbine. They found that around 90 percent of them preferred the wind turbine over an alternative plant located at a similar distance, whether it was fueled by coal, natural gas or uranium.

Firestone said the study offered a more realistic gauge of American's energy preferences.

"We've looked at social acceptance of wind projects examining factors such as effect of landscape change, sound and place attachment. In those studies, the ultimate question is whether a community member supports or opposes a local project — that is, wind power or nothing," he explained in a UD press release. "But that's not the societal choice, which is instead, among wind power, solar, coal or natural gas. Even when residents might have less than positive attitudes toward a local project, the majority appear to conclude that their local wind power project is better than the alternatives."

1. Here are some of the key findings, reported by the press release and additional comments by Firestone in Behavioral and Social Sciences at Nature:

2. Of the two-thirds who had a preference between living near a wind turbine or a commercial solar installation, three to one preferred wind.

3. The preference for wind held across states despite economic or geographic differences. For example, 86 percent of people in coal-mining states preferred to live near a wind turbine, while only around eight percent would have preferred to live near a coal plant.


The preference also held whether the state was considered 'Red' (voted Republican for president in 2012 and 2016), 'Purple' (switched between the two years) or 'Blue' (voted Democrat both years.)

"{P} references for wind power are bipartisan, " Kirk said in the press release.

The data set Kirk and Firestone used for their research was collected and made public by the Lawrence Berkeley National Laboratory. Firestone, who also helped compile the original data, explained in Nature how it was done:

Quote
First, we subdivided the population. For example, the 8 km distance was broken into four groups to ensure that sufficient individuals were included who lived very nearby a wind turbine given their potential greater ability to hear operating wind turbines and to be affected by changes to the landscape. Second, we used three modes to contact individuals to take the survey: telephone, online, and on paper. To account for the complexity and to address the fact that not everyone contacted responds, the sample was weighted to match it to the population based on gender, age and education.

Firestone said that the wide support for wind projects by those who lived near them, even in coal states, was a positive sign for how the public might react to a shift away from fossil fuels.

"This suggests the energy transition that is underway in the United States may be embraced widely," he said in the press release.

https://www.ecowatch.com/wind-turbines-americans-2632137785.html

Posted by: AGelbert
« on: March 06, 2019, 05:04:38 pm »

Agelbert NOTE: Oh the irony; a TANKER  powered partially by (wind) Renewable Energy.  



Norsepower Rotor Sails Issued First-Ever Design Type Approval for Onboard Wind Propulsion

March 5, 2019 by gCaptain

 
Maersk Pelican with Norsepower Rotor Sails installed. Image via Marsk Tankers

Finnish clean technology group Norsepower announced Tuesday that its innovative Rotor Sail Solution has received the first-ever type approval design certificate granted to an auxiliary wind propulsion system onboard a commercial ship.

The type approval from leading ship classification society DNV GL was issued in February 2019 after a design assessment of Norsepower’s 30-meter by 5-meter Rotor Sail, two of which have been installed onboard the Maersk Pelican LR2 tanker.

Norsepower says the landmark certification means that vessels operating its Rotor Sail technology are technically capable of safely navigating “all operational and environmental situations”.

The company’s Rotor Sail Solution is a modernized version of the Flettner rotor; a spinning cylinder that uses the Magnus effect to harness wind power to propel a ship and enhance fuel-saving.

Rotor Sails have already been installed on three vessels and has achieved over 35,000 hours in operation, saving more than 4,500 tonnes of CO2, according to Norsepower. The solution has also been independently verified to reduce fuel consumption by up to 20%.

Commenting on the type approval, Norsepower CEO Tuomas Riski said: “We are very proud to be the first company to have type approval granted to an auxiliary wind propulsion system onboard a commercial ship. Having a type approval design certificate is very important to us. Clearly, it provides shipowners, operators, and charterers with a level of assurance when investing in the Rotor Sail Solution, but in the long term, it removes yet another hurdle to the realization of renewable wind energy propulsion systems at a scale that supports shipping’s transformation to a low carbon transport sector.”

Last month, Norsepower was crowned the winner of the 2018 International Quality Innovation Award in recognition of its Rotor Sail Solution technology’s ability to demonstrate positive environmental contributions.

“To help reduce shipping’s environmental impact we will need many different fuel and technology options, which is why we were very pleased that Norsepower asked us to be part of this innovative wind propulsion project,” said Geir Dugstad, Director of Ship Classification and Technical Director at DNV GL.

https://gcaptain.com/norsepower-rotor-sails-issued-design-type-approval/
Posted by: AGelbert
« on: February 20, 2019, 02:21:30 pm »



First Turbine Installed at World’s Largest Offshore Wind Farm
February 19, 2019 by Mike Schuler

Hornsea 1 turbine Photo: Orsted

The first turbine at the soon-to-be world’s biggest offshore wind farm has been installed and is now producing electricity off of England’s coast.

When fully operational, the 1,218-megawatt Hornsea 1 offshore wind farm will be nearly double the size of the current world’s largest offshore wind farm, Walney Extension, and capable of powering well over one million homes in the UK with renewable electricity.

The project is located 120km off the Yorkshire Coast and will consist of 174 Siemens 7MW turbines. The majority of wind farm’s blades are manufactured in Hull, from where they are shipped to the Hornsea zone.

To date, 172 out of 174 monopile foundations have been installed at the site, and turbine installation is expected to continue until late summer 2019.

The wind farm is a joint venture between Ørsted, a global leader in offshore wind, and Global Infrastructure Partners.

Ørsted began offshore construction and little over a year ago and expects the project to be completed by Q1 2020.

The electricity generated by the turbines will pass via undersea cables through one of three massive offshore substations, and the world’s first offshore reactive compensation station, all fully installed, before reaching shore at Horseshoe Point, Lincolnshire. The electricity is then transported via underground cables to the onshore substation in North Killingholme, where it will connect to the UK grid.

“Hornsea 1 is the first of a new generation of offshore power plants that now rival the capacity of traditional fossil fuel power stations,” said Matthew Wright, UK Managing Director at Ørsted. “The ability to generate clean electricity offshore at this scale is a globally significant milestone, at a time when urgent action needs to be taken to tackle climate change.”

“Ten years ago, the thought of a project of this size was just a dream, but thanks to continued innovation, a determined effort from both the industry and supply chain to drive down costs, and the natural geographical benefits that surround us, the UK has positioned itself as a world-leader in offshore wind,” Wright added.

https://gcaptain.com/first-turbine-installed-at-worlds-largest-offshore-wind-farm/
Posted by: AGelbert
« on: January 09, 2019, 01:29:02 pm »

CleanTechnica
Support CleanTechnica’s work via donations on Patreon or PayPal!

Or just go buy a cool t-shirt, cup, baby outfit, bag, or hoodie.


Vestas Becomes First Company To Install Over 100 Gigawatts Of Wind Turbines

January 9th, 2019 by Joshua S Hill

Danish wind turbine manufacturing giant Vestas Wind Systems A/S announced today that, with the installation of a V110-2.0 megawatt (MW) turbine at MidAmerican Energy’s Wind XI project in late 2018, the company has become the first to install 100 gigawatts (GW) of wind turbines.

Vestas Wind Systems has kept itself in the news over the past two months with consistent announcements — including news in early December that it had surpassed 10 GW worth of orders taken during 2018. This, then, and unsurprisingly, continued through the rest of the month and, earlier this week I reported that Vestas finished 2018 with orders taken worth close to 13 GW — well in excess of its previous records.

In fact, in December of 2018 alone, Vestas took in confirmed wind turbine orders of 2,859 GW.

Not willing to fade from the news, Vestas Wind Systems announced today that, with the installation in late 2018 of a V110-2.0 MW wind turbine at the multi-site 2 GW Wind XI project being built across Iowa by MidAmerican Energy, the company became the first to install 100 GW of wind turbines.

The first wind turbine Vestas installed was a V10-30 kilowatt (kW) turbine in 1979. Since then, the company has installed over 66,000 wind turbines :o in approximately 80 countries around the world on six continents. A long way from a 30 kW wind turbine, Vestas’ largest onshore wind turbine is the V150-4.2 MW turbine.

“We have pioneered wind energy across the globe for 40 years, and to install 100 GW together with our customers and partners is something we are extremely proud of as it underlines how far Vestas and wind energy have come,” Anders Runevad, Vestas President and CEO. “It’s also a pleasure to celebrate this milestone with a key customer like MidAmerican Energy. Reaching this milestone has required continuous innovation, strong commitment and great execution from all Vestas’ employees, and the 100 GW, therefore, represents a key part of the foundation that enables us to develop the sustainable energy solutions of the future.”

Vestas’ 100 GW of wind turbines have helped to remove 129 million tonnes of CO2 from the atmosphere equaling CO2 emissions from:

► 141 billion pounds of burned coal

► 298 million barrels of oil

► 22.54 million US homes yearly electricity use

► 33 coal-fired power plants

► Carbon sequestered from 152 million acres of forest


“With 100 GW of installed wind turbines, Vestas has installed around 10% of all wind and solar capacity in the world,” explained Anders Riis, Director of Communications for Vestas, who spoke via email, “but as the next 1000 GW are expected to be installed by 2023, Vestas remains focused on executing our commitments and priorities in the short term. By doing so, we sustain and strengthen the foundation that enables us to develop the sustainable energy solutions our customers and stakeholders need in the future.”

https://cleantechnica.com/2019/01/09/vestas-becomes-first-company-to-install-over-100-gigawatts-of-wind-turbines/
Posted by: AGelbert
« on: January 02, 2019, 04:49:15 pm »

CleanTechnica
Support CleanTechnica’s work via donations on Patreon or PayPal!

Or just go buy a cool t-shirt, cup, baby outfit, bag, or hoodie.


 
Image credit: Vagn Gejl Donskov


Vestas Turbine Catches Fire 🔥 😲 In Danish New Year Storm 

January 2nd, 2019 by Jesper Berggreen

Since New Years Eve, it’s been quite windy in Denmark, and of the +6000 wind turbines in the country one of them apparently had to succumb to the pressure after many years of service. TV2 TVMV.dk reports (with video) that the turbine caught fire on Tuesday afternoon, and that the fire subsequently spread to a farm below. Nobody lives on the farm, but it is still in use for livestock and between 30 and 40 bull calves were in the buildings.

“The turbine stands where just below there is a two-sided farm with these bull calves. The wings have fallen into the building, and the barn has caught fire, which we have tried to control,” says Lars Stensbjerg, who is the leader of Fire and Rescue MidtVest.

Lucky for the bull calves 🐂 the wind had a direction keeping them out of harm’s way. They are all being rescued. 


 
Image credit: Line Flatau, TV2 TV MIDTVEST TVMV.dk

According to Vestas press officer Anders Riis, it’s an old turbine. “When the fire has stopped, we will initiate a study of what may be the cause of the fire,” he said to TV2 TVMV.dk.

With the address given I found according to thewindpower.net, this must be the turbine in question: “Commissioning: 1993/03 by Vestas. Hub height: 30 m. Total nominal power: 300 kW. Dismantled (2010/05).” That last bit of information is puzzling. Maybe at was decommissioned and replaced or maybe it was just standing there and the brakes wore out and made it spin again causing the fire? While accidents with wind turbines are indeed spectacular, let’s also keep in mind that they are very rare.

One year ago we reported that Denmark had a record wind energy year in 2017 and it will be interesting to see 🧐 if 2018 will beat that. Also, as turbines get larger, they get lower in numbers. In fact, if the current +6000 turbines in Denmark keep getting updated, it could easily mean a doubling of nameplate capacity with a third of turbines, and many new turbines are going to be off-shore in the future. So, accidents will probably be even more rare.


 
Wind profile from energinet.dk. Light green is wind peaking at 4 GW. Yellow icing is solar, and dark greens are conventional power plants.
 
https://cleantechnica.com/2019/01/02/vestas-turbine-catches-fire-in-danish-new-year-storm/
Posted by: AGelbert
« on: December 24, 2018, 08:19:57 pm »

Quote
It is partnering with Neoline to build two experimental roll-on/roll-off car carriers powered by sails. Each will be 446 feet long and carry more than 45,000 square feet of sails.

Renault Will Use Sails To Cut Emissions On Trans-Atlantic Routes

December 24th, 2018 by Steve Hanley


article with the above video:

https://cleantechnica.com/2018/12/24/renault-will-use-sails-to-cut-emissions-on-trans-atlantic-routes/

Posted by: AGelbert
« on: November 13, 2018, 09:17:15 pm »

Scottish ⚡ Wind Delivers Equivalent Of 98% Of Country’s October Electricity Demand 👀

November 13th, 2018 by Joshua S Hill



https://cleantechnica.com/2018/11/13/scottish-wind-delivers-equivalent-of-98-of-countrys-october-electricity-demand/
Posted by: AGelbert
« on: October 18, 2018, 08:31:14 pm »



Aeolus Energy Planning Jones Act-Compliant Fleet of Offshore Wind Vessels

October 17, 2018 by Mike Schuler



Orlando-based Aeolus Energy has signed an agreement with Norwegian shipbuilding group Ulstein to design the first Jones Act compliant service vessel for the budding U.S. offshore wind market.

Aeolus says the purpose-built vessel, known in the industry as a Service Operations Vessel (SOV), will be the first among a fleet of vessels to support the full scope of offshore wind farm operations from installation through decommissioning. Additional plans for the fleet include cable ships, crew transfer vessels and hotel ships.

As a Jones Act compliant vessels, they will all be built at a U.S. shipyard and crewed by Americans.

“The design and ultimate construction of these vessels will result in significant job creation and is a demonstration of confidence in the American shipbuilding industry,” said Elia Golfin, CEO of Aeolus Energy Inc. “We are excited to be working with Ulstein, an established market leader in vessel design for offshore wind. We look forward to pushing the envelope in the offshore wind industry where Jones Act-compliant vessels are concerned.”

For the design, Aeolus has contracted with Ulstein Design & Solutions, B.V. for its SX195 design SOV, which will be fully customized to Aeolus’s specifications and U.S. Coast Guard requirements. “The project starts with customizing the SX195 design, to optimize the new walk-to-work vessel for operations in US offshore wind farms, including featuring the X-BOW and X-STERN hull shape,” Ulstein said in a press release.

Ulstein Aeolus offshore wind vessel 2 Credit: Ulstein

The contract marks Ulstein’s entry into the U.S. offshore wind market as well, after having introduced the first dedicated offshore wind support vessel in the European market back in 2013. This year, however, Ulstein says it has already received five contracts in the offshore wind market, including two SOVs, a cable lay vessel and a large foundation installation vessel.

“Ulstein is proud to have been selected as design partner by Aeolus for developing the United States’ first purpose-built SOV vessel,” said Tore Ulstein, deputy CEO of Ulstein. “With our track record in SOV designs and supporting yards worldwide in building our innovative designs, we are committed to support Aeolus and its chosen US shipyards in realizing Aeolus’ new fleet development and jointly set the standard for excellent, Jones Act-compliant offshore wind vessels.”

Aeolus’ plans for the fleet come as more and more U.S. states, such as Massachusetts, New Jersey, and New York, move closer having wind farms off their coasts. The Trump Administration has also signaled an eagerness to boost development in the U.S. offshore wind industry through streamlining the permitting process and by offering more offshore acreage available for leasing, part of the Administration’s policy to boost domestic energy production.

The first U.S. offshore farm, the 30MW Block Island Wind Farm, opened in 2016 off the coast of Rhode Island. Earlier this month, the project’s developer, Deepwater Wind, was acquired by Danish power company Ørsted, thereby creating the leading U.S. offshore wind company with a total capacity of nearly 9GW already in the pipeline.

https://gcaptain.com/aeolus-energy-planning-jones-act-compliant-fleet-of-offshore-wind-vessels/
Posted by: AGelbert
« on: October 16, 2018, 02:09:52 pm »



Watch: 18,000-Tonne BorWin Gamma ⚡ Platform Installed in North Sea

October 15, 2018 by Mike Schuler

Photo: Ulrich Wirrwa / WiWiPhoto.de

The 18,000 tonne topside of the BorWin gamma High Voltage Direct Current (HVDC) platform has been installed on its jacket foundation in the German sector of the North Sea, where will soon be used to supply green power to more than one million German households.

The giant converter arrived on board the heavy lift vessel Xiang He Kou which was used in the float-over installation of the platform at the installation site a little over 80 miles off the coast of Germany.

The heavy lift vessel Xiang He Kou arrived on site earlier this month after completing its voyage from Drydocks World’s Dubai Shipyard, where construction of the BorWin gamma has been underway since 2014.

A video showing the installation is below:


Construction of the platform involved approximately 13.5 million man-hours and used 10,500 tonnes of steel, more than the weight of the Eiffel Tower. Inside the platform is nearly 550 miles of cable.

Scheduled to go online in 2019, the 900MW BorWin gamma platform houses an HVDC converter station that will convert alternating current produced by offshore wind farms to direct current before transmitting it onshore to the German grid.

TenneT ordered the HVDC link BorWin Gamma from a consortium comprising Petrofac and Siemens.

“I am delighted that the topside has been safely installed at its home in the North Sea. This is a major accomplishment and something that the various parties involved should be very proud of, specifically our client TenneT and consortium partner Siemens,” said PetroFac project manager, Roberto Cecchini. “The focus remains on safe and efficient delivery to complete the project in 2019.”

https://gcaptain.com/watch-18000-tonne-borwin-gamma-platform-installation-in-north-sea/
Posted by: AGelbert
« on: September 27, 2018, 01:08:24 pm »

Chartwell Marine launches new vessel for U.S. offshore wind

By Michelle Froese | September 25, 2018

Chartwell Marine, a pioneer in next-generation vessel design, has announced the launch of the Chartwell 24, a brand-new crew-transfer vessel (CTV) design for the international offshore wind markets. The catamaran design has been developed in conjunction with CTV operators, wind-farm owners and turbine manufacturers, responding directly to lessons learned in the construction and long-term operations & maintenance (O&M) phases of European projects.


Chartwell 24 transfer vessel

The Chartwell 24 transfer vessel is capable of carrying a crew of 24 workers. It has been built with a focus on ergonomics and safety, with features such as extra handrails and safety sliding rails. View its specs here.

While the optimum composition of an offshore wind fleet remains a topic of debate, CTVs continue to play a critical role throughout development and operations. This role has evolved in line with the increasing demands of supporting large-scale deep-water wind farms, encompassing not only the safe, comfortable, and expedient transfer of technicians to and from the turbines, but also a wide range of essential logistical support activities that keep a project running on schedule.

In this context, CTVs and their operators must offer considerable versatility, while maintaining the highest possible standards of safety and technical availability. As the industry looks to balance these objectives, vessel designs are becoming increasingly standardized – but there is still room to refine this formula. In turn, operators in new markets such as the USA and Taiwan have the opportunity to start on the front foot by taking advantage of the most advanced vessel technology available.

The Chartwell 24, developed off the back of 10 years of data and experience in offshore wind vessel design, aims to hit a ‘sweet spot’ in vessel size and capability that has been achieved by the most effective vessels currently operating in the European market. It aims to build on those proven capabilities, while responding to new requirements emerging as the offshore wind industry expands worldwide.

Specifically, the vessel, which is capable of carrying 24 industrial personnel alongside 3 to 6 crew, also boasts the largest CTV foredeck in the market, enhancing its cargo capacity. With four engines – and options for hybrid propulsion – the Chartwell 24 enables power sharing, enhancing efficiency and adding redundancy that maximizes vessel reliability and availability. As scrutiny grows on vessel emissions worldwide, this also means that the vessel is well-placed to meet international requirements, such as EPA Tier 4 and IMO Tier 3.

“With the Chartwell 24, we’re responding directly to tried and tested vessel support approaches adopted throughout Europe, taking and building upon the best of proven designs and equipping international operators and wind-farm owners with a boat that is built for purpose, and meets their needs from day one,” said Andy Page, Managing Director, Chartwell Marine.

Crucially, the Chartwell 24 introduces a number of safety related innovations, including a step-free deck that almost entirely eliminates trip hazards, and purpose designed walkways with handrails and sliding safety rails positioned for safe, effective and repeatable crew transfer. From an operational perspective, skippers benefit from full all-round visibility, uncompromized by deck cargo.

“For crews and wind farm technicians, that will translate into a high degree of safety, comfort and operational familiarity. For CTV operators and project owners, that will result in incremental gains in efficiency, availability and reliability that ultimately improve the way offshore wind farms are constructed and operated.”

https://www.windpowerengineering.com/business-news-projects/chartwell-marine-launches-new-vessel-for-u-s-offshore-wind/
Posted by: AGelbert
« on: September 27, 2018, 12:58:37 pm »



MHI Vestas Launches Record-Breaking 10MW Wind Turbine

September 26, 2018 by Mike Schuler

Photo: MHI Vestas Offshore Wind

Denmark-based offshore wind turbine maker MHI Vestas says it has broken the industry’s double-digit power barrier with the release of the world’s first turbine to achieve a power rating of 10 MW.

The record-breaking turbine, called the V164-10.0 MW, builds on the company’ popular V164 platform, with more than 100 V164 turbines already installed in the UK and Germany.

With the 10 MW rating, the V164-10.0 MW model is now the most powerful commercially-available wind turbine in the world – onshore or off.

“What was unreachable before has become the new benchmark,” said MHI Vestas CEO, Philippe Kavafyan. “In launching the V164-10.0 MW today, MHI Vestas is proud to contribute this major milestone to the offshore wind industry. And it gives us the opportunity to pay tribute to all the wind industry pioneers who have led us to this historic, double-digit nominal capacity.”

With an approximate tip height of 187 meters, the V164-10.0 MW model is fitted with 80-meter blades for a rotor diameter of 164 meters. The also model incorporates a stronger gearbox, some minor mechanical upgrades, and a small design change that enhances airflow and increases cooling in the converter. According to MHI Vestas, these upgrades mean the V164-10.0 MW can run at full power at a site with wind speeds of 10 meters per second for 25 years.

“At MHI Vestas, we are focused not on what others are doing, but being the best at what we do,” said MHI Vestas Chief Technology Officer, Torben Hvid Larsen. “The V164-10.0 MW turbine is the best proof point yet that we do not accept the limitations of conventional thinking and that we think beyond ourselves. We have embraced the challenge of transforming what is possible in our field.”

The V164-10.0 MW is available for sale now and can be delivered for commercial installation beginning in 2021.

https://gcaptain.com/mhi-vestas-launches-record-breaking-10mw-wind-turbine/
Posted by: AGelbert
« on: September 09, 2018, 12:08:12 pm »



World’s Largest Offshore Wind Farm Opens in Irish Sea… And It’s HUGE 👀

September 6, 2018 by Bloomberg

The 659MW Walney Extension offshore wind farm has 87 wind turbines capable of generating enough green energy to power almost 600,000 UK homes. walney extension world's largest offshore wind farm Photo: Orsted

By Jeremy Hodges (Bloomberg) — Orsted A/S unveiled the world’s largest offshore wind farm, an 87-turbine complex in the Irish Sea covering an area more than double the size of Manhattan.

SNIPPET:

The Walney Extension off the coast of northwest England has a generating capacity of 659 megawatts and is capable of powering 590,000 homes, according to Danish company Orsted, the world’s biggest developer of offshore wind farms.

MHI Vestas Offshore Wind A/S and Siemens Gamesa Renewable Energy SA provided the turbines for the project that began construction in August 2015. The Vestas 8-megawatt turbines stand 195 meters tall while the 7-megawatt version by Siemens is 154 meters from sea level to blade tip.

Full article:

https://gcaptain.com/worlds-largest-offshore-wind-farm-opens-in-irish-sea-and-its-huge/

Posted by: AGelbert
« on: July 20, 2018, 09:27:41 pm »


Offshore Heavy Transport to Enter Wind Market with Innovative Heavy Lift Installation Vessel

July 19, 2018 by gCaptain

ULSTEIN Alfa Lift design

Norway-based Offshore Heavy Transport is set to enter the offshore renewables market with a state-of-the-art heavy lift transport and installation vessel that combines semi-submersible capability with high-capacity crane operations.

The ULSTEIN Alfa Lift design is developed by Dutch design company Ulstein Design & Solutions BV (UDSBV) in close cooperation with OHT.

The patent-pending design combines the benefits of semi-submersible transport with a large, 3,000 mt lifting capacity main crane from Liebherr.

A unique feature of the dynamically-positioned, 48,000 DWT vessel will be its ability to perform heavy lift crane operations with the main deck submerged.

The vessel is purpose-built to transport and install up to ten 1,500 metric ton wind turbine jacket foundations or eleven 2,000t monopiles, plus transition pieces, supporting the installation of the world’s largest wind turbines.

The first vessel will be constructed by China Merchant Heavy Industry (CMHI) and available for construction and installation activities from early 2021. OHT has options for up to 3 additional units.

ULSTEIN Alfa Lift design

“We started the development of the ULSTEIN Alfa Lift idea back in 2015 with the driver to increase the safety of submerged operations and at the same time increasing the operability window for subsea installations using a crane,” says Edwin van Leeuwen, managing director at Ulstein Design & Solutions BV.

“It is great to work with such capable people. When we approached Ulstein with our intended strategy to enter the offshore renewables market and the idea of adding crane capacity to a semi-submersible heavy lift transport vessel, UDSBV presented their Alfa Lift solution on the spot,” comments Torgeir E. Ramstad, CEO at OHT. ‘That was a direct ‘hit’, as it allows us to enter the installation market, at the same time expanding on our capabilities in OHT’s core market.”

OHT’s fleet currently consists of five traditional semi-submersible heavy lift vessels.

http://gcaptain.com/offshore-heavy-transport-to-enter-wind-market-with-innovative-heavy-lift-installation-vessel/
Posted by: AGelbert
« on: July 07, 2018, 09:00:19 pm »



Ulstein to Build Advanced, DP3 Cable Layer for Nexen

July 6, 2018 by Mike Schuler

The ST-297 CLV (cable laying vessel) is designed by Skipsteknisk, Ålesund

Norwegian shipbuilder Ulstein has secured a contract from French cable company Nexans to construct a large, DP3 cable laying vessel to support the growing demand for clean energy.


The advanced cable layer, designed by Norwegian ship designer Skipsteknisk, will be outfitted for power cable laying, including bundle laying, cable jointing and repair and cable system protection and drenching. DP3 will offer high maneuverability and station keeping capabilities even in rough weather.

Nexans says the newbuild is part of a company initiative to reinforce its manufacturing and installation capacities to meet the growing demand for HV cabling systems, particularly as it relates to interconnectors and offshore wind projects worldwide.
 
The vessel will feature a turntable with a large cable capacity of 10,000 tonnes, and the fiber optic basket holds 450 tonnes. The vessel is 31 m wide, 149.9 m long, with a deadweight of 17,000 tonnes, and she can accommodate 90 people.

“We are very pleased that Nexans, a solid and important player, chooses Ulstein to construct their new flagship,” said Ulstein Group CEO Gunvor Ulstein. “We have a strong organization with long experience in delivering advanced vessels. The contract was won in tough, international competition. We look forward to a constructive and fruitful cooperation with Nexans in the years to come.”

The vessel will be constructed at the Ulstein Verft shipyard in Norway with delivery expected by Q3 2020.

“We are experienced in constructing large and complex vessels and we look forward to commencing the work on the cable laying vessel for Nexans”, says Kristian Sætre, managing director at Ulstein Verft.

“The construction of this new cable-laying vessel is a fundamental milestone in our commitment to cleaner energy,“ said Arnaud Poupart-Lafarge, Nexans CEO. “For many decades, Nexans has been acting for energy transition and sustainable development. In this next exciting chapter of our capacity to meet customer expectations, the cutting-edge technology of the new ship will enable Nexans to support countries in their development of the unlimited potential of renewable power generation.”
 
Filed Under: Maritime News
Tagged With: Cable Laying, Offshore Wind, ulstein


http://gcaptain.com/ulstein-to-build-advanced-dp3-cable-layer-for-nexen/
Posted by: AGelbert
« on: June 29, 2018, 03:04:34 pm »

CleanTechnica
Support CleanTechnica’s work via donations on Patreon or PayPal!

Or just go buy a cool t-shirt, cup, baby outfit, bag, or hoodie.

World’s Largest Wind Turbine Passes Final Hurdle

June 29th, 2018 by Joshua S Hill


Offshore wind turbine manufacturer and developer MHI Vestas announced on Wednesday that its flagship V164 9.5 megawatt (MW) offshore wind turbine, the world’s most powerful wind turbine, has been awarded an S class type certificate, paving the way for installations to begin in late 2019.

The race to produce the world’s largest and most powerful wind turbine has been an ongoing battle and currently, the next landmark will see MHI Vestas replace its own record. MHI Vestas earlier this year supplied two of its 8.4 MW wind turbines, fine-tuned to 8.8 MW, to the European Offshore Wind Deployment Centre (EOWDC) in Aberdeen Bay, Scotland. Additionally, MHI Vestas’ uprated 8 MW turbine can sometimes reach 9 MW, but only when specific site conditions are met.

The company will continue to out-do itself in the short-term, announcing this week that its 9.5 MW flagship V164 wind turbine has passed final certification and will now move towards installation at sites in late 2019. The certification was awarded a year after the company announced its 9.5 MW turbines which are larger than the mammoth London Eye Ferris wheel.

“This is the culmination of years of hard work and is something we are extremely proud of,” said MHI Vestas Chief Technology Officer, Torben Larsen. “The type certificate provides our customers with the certainty and assurance that the 9.5 MW turbine will deliver on its promise.”

“Announcing the world’s most powerful turbine and then receiving final certification one year later is no small achievement,
added Head of Product Management, Henrik Baek Jorgensen. “This is a very important chapter in the growing legacy of the V164.”

However, MHI Vestas’ competitors are already nipping at its heels, including GE Renewable Energy, which in March of this year unveiled its monster 12 MW Haliade-X, which measures in at 260 meters to the tip compared to a ‘measly’ 187 meters tall for MHI Vestas’ V164-9.5 MW. Capable of powering up to 16,000 European households per wind turbine, the Haliade-X is the long-awaited move into double-digit figures and towards the necessary power to economically and efficiently make offshore wind a necessary dominant force in the world’s energy mix.

https://cleantechnica.com/2018/06/29/worlds-largest-wind-turbine-passes-final-hurdle/
Posted by: AGelbert
« on: June 22, 2018, 10:00:38 pm »

Liftra’s Blade Way 💫 brings down turbine blades without a crane

By Paul Dvorak | June 15, 2018

Wind turbine service company Liftra launched the Blade Way 💫 in 2017 and introduced it at AWEA’s recent Windpower 2018 conference, as a way to remove and replace wind turbine blades without the time and cost expense of a high-reach crane. Blade Way has a rated capacity of 14.6 tons, and it can work at peak wind speeds of 12 m/s.



These are the main components of a Liftra Blade Way 💫 blade-removal system.

A few of its advantages include:

Reduced mobilization costs that come from its transport in just two standard 40-foot containers. It boasts of universal compatibility thanks to a system that is configurable for all major turbine brands. Its proven wire system and controls are based on the company’s self-hoisting crane. Also, proven blade yokes are based on the last seven years of development in vertical blade installation technology.

The system is comprised of two blade yokes, one for the root end of the blade and one for the tip end, and a hub sling and hoist block.

The components of the Blade Way include:

֍ Blade Way wire system at the turbine hub.

֍ A dual light-weight crane with two arms for hoisting the hub sling and hoist block.

֍ A steel A-frame that attaches to the container for gaining wire height, and the

֍ Wire system that runs from a winch in the container through the A-Frame and both blade yokes up to the hub sling.

Blade Way 💫 brings down a blade for repair.


The Blade Way 💫 sets up at a turbine and removes a blade this way:

1. Workers position the blade to be replaced by turning the rotor to position the faulty blade vertically.

2. The dual light-weight crane is hoisted with the internal turbine crane and mounted inside the nacelle.

3. With the light-weight crane, the hub sling system is hoisted and hooked around the two ‘bunny-ear’ blades.

4. The root yoke and tip yoke are threaded and hoisted along the wires to each end of the vertical blade.

5. The root yoke clamps the root end of the blade, and the tip yoke clamps the tip end, both at precisely defined positions.

6. The blade is lowered to the ground, either with or without the blade bearing.

Once on the ground, the blade or bearing is changed, and the blade can be hoisted back up and reattached to the hub.

https://www.windpowerengineering.com/operations-maintenance/liftras-blade-way-brings-down-turbine-blades-without-a-crane/
Posted by: AGelbert
« on: June 22, 2018, 09:35:04 pm »

CGE Energy obtains U.S. patent for installation process of its WIND-e20 turbine
By Michelle Froese | June 20, 2018

CGE Energy, Inc. announces that the United States Patent and Trademark Office (USPTO) has issued U.S. Patent No. 9,970,410 to the company, entitled, “Installation and erec tion assembly for an elongated structure.” This patent covers the proprietary equipment used for the easy delivery and crane-less installation of CGE Energy’s WIND•e20 vertical-axis wind turbine.

CGE Energy says its WIND•e20 is the world’s only turbine that can be installed, maintained, and removed without a single crane. The turbine can be delivered on the back of a standard flatbed truck, self-erects, and be installed within days.

CGE’s newly issued patent covers a hydraulic installation frame, devised to support their WIND•e20 turbine (or other wind turbines or elongated structures) in a folded arrangement for transportation on a trailer, and to support assembly and erec tion of the turbine. This transport frame enables the turbine to be delivered on a flatbed truck and can lie flat for maintenance without the need of a crane. This diverges from the way traditional horizontal wind turbines are assembled after delivery, which typically require costly cranes for installation and repair.

“This unique patented technology offers easy turbine transportation using a single truck and trailer,” said Bryan Zaplitny, President and CEO of CGE Energy, as well as, one of the solution’s inventors. “The expansion of our intellectual property portfolio is an integral aspect of CGE Energy’s turbine development and commercialization strategy aimed at positioning the WIND•e20 as a first-in-class onsite energy generator.”

This patent adds to the list of other key patents that are owned by CGE, including having a fluid driven turbine that generates power from wind blowing from any direction, its generator and primary components located in the base of the turbine, and hydraulic locking joints within the turbine’s segmented blades, which allow them to collapse flat against the rotor.

CGE Energy’s strategic manufacturing partner for WIND•e20 is Roush, headquartered in Livonia, Michigan. CGE Energy is also working with Roush’s team to patent innovations that will make WIND•e20 an integral part of the community, bringing positive impact to communications, life safety, homeland security and emergency response.

The WIND•e20 uses three segmented blades to produce power from 20 to 100 kW, depending on generator size. The spinning blades appear solid to birds so they fly 🦅 around the working turbine. 

https://www.windpowerengineering.com/business-news-projects/cge-energy-issues-u-s-patent-for-installation-process-of-its-wind-e20-turbine/
Posted by: AGelbert
« on: June 22, 2018, 07:05:50 pm »



June 22, 2018

#Business & Jobs #International #Wind

Handelsblatt

General Electric to ramp up wind power investments in Germany

US company General Electric (GE) will ramp up its investment in wind power in Germany in a bid to revive its ailing business, Axel Höpner and Kathrin Witsch write in the Handelsblatt.

The veteran US manufacturer, which has recently got booted from the Dow Jones Industrial Average 30-stock index and is grappling with a waning gas turbine business, wants to increase the number of its employees in Germany and to also boost its investment in the renewable energy branch, the authors write. “We want to grow our wind power business in Germany and in Europe and increase our market share,” GE Germany head Wolfgang Dierker said.

GE, which has an estimated annual revenue of 3.5 billion euros in Germany, has already announced an attack on rival Siemens’s home market in the past, the article says. Its share in new wind power installations now more than doubles that of Siemens and new products, such as the planned 12 GW offshore turbine ‘Haliade-X’, could help GE boost its share further in the next years, it adds.

https://www.handelsblatt.com/unternehmen/industrie/industrie-ikone-in-der-krise-ge-forciert-geschaeft-in-deutschland-windkraft-soll-geschaeft-ankurbeln/22719292.html
Posted by: AGelbert
« on: June 17, 2018, 07:11:19 pm »

David B.:
Quote
I saw a documentary on cousteau on the Alcyone. https://en.m.wikipedia.org/wiki/Turbosail
And I remember reading about rotor ships.
https://en.m.wikipedia.org/wiki/Rotor_ship

Yes, that magnus effect is a very real way of harvesting wind for propulsion quite efficiently. 


There are some ships now being fitted with rotor sails to harness wind as a supplement to the engines:

SNIPPET:

Types

Several types of rotor ships can be distinguished. Rotor sail-only ships exist, as do rotor sail-assist (hybrid) ships.[citation needed] Wind Ship Development Corporation has two types of sail-assist designs, for use with different sizes of ships.[2] In practice, most rotor ships have a system with an electric motor that allows the initial start and eventual stop of the rotor by crew.[citation needed] Rotor's rotational speed (i.e., RPM) and direction of spin can also be controlled.[citation needed]

Uses today

Rotor ship E-Ship 1, from German wind-turbine manufacturer Enercon


File:Points of sail for rotorships.svg

In 2014 Norsepower, a Finnish clean technology and engineering company pioneering the generation of renewable wind energy for the global maritime industry, announced that it will bring to the market the "Norsepower Rotor Sail Solution"[21] which is a completely modernized version of the Flettner rotor. Later in 2014 Norsepower installed the first Norsepower Rotor Sail on Finnish shipping company Bore's RoRo vessel M/V Estraden, and in the end of 2015 Norsepower installed a second similar unit on the same ship. In the beginning of 2016 it was released by Norsepower, that based on the successful sea trials on board M/V Estraden, the technology has potential for fuel savings of up to 20% for vessels with multiple, large rotors traveling on favourable wind routes.[22]

After Norsepower's success with the new design, also Viking Line returned with the rotor concept for their next planned newbuilding. The first image of a new 63,000 GT vessel shows large Flettner rotors which could help the ship to reduce fuel consumption with up to 15%. Letter of intent was signed for the ship in November 2016, awaiting final agreements signing in early 2017.[23] According to a Finnish newspaper, the rotor concept of Viking Line is based on Norsepower Rotor Sails.[24] The latest news from Norsepower is that they have agreed with world's biggest shipping company, Maersk, to start testing the rotor concept in Maersk ships starting beginning of 2018. The managing director of Norsepower, Tuomas Riski, promises their innovation to cut 7–10% of fuel cost leading up to 300000€ savings in big tankers.

In 2018, the MS Viking Grace was retrofitted with a rotor for further testing.[25]

Agelbert NOTE: The rotor is installed near the middle of the short video:


Read more:

https://en.wikipedia.org/wiki/Rotor_ship
Posted by: AGelbert
« on: June 17, 2018, 05:20:05 pm »

I have the two turbines I bought from Mike after I took my turbine building course. I built one like my little one, and I helped build one like my bigger one, but I had Mike build the ones I bought. Experience is worth something. His simple designs have been proven. Nothing fancy, but plenty of them in service.

For wind, its a relatively easy job to build a turbine from commonly available stuff, if you can get magnets. I went for simple rather than high efficiency.

Sourcing and erecting a tower is a much bigger job, imho, than building a turbine. And with 9mph wind, it's more of a novelty here. But on some days in winter it would no doubt be nice to have a turbine spinning, even here. I have not ever gotten a tower up. Expensive, complicated job, usually requiring a crane. I've been shopping for a good tower deal forever.

I have a low wind Mallard LW built from a repurposed Delco car alternator, and a bigger Mallard SP80.



http://www.mikeswindmillshop.com/product/low-wind-mallard-lw


Nice! micro wind has been mostly destroyed by low cost solar. as mentioned the tower costs and maintenance make them non competitive except on the best wind sites. ...

True. As you said, the advantage a wind turbine could have over photovoltaic is strictly in places where there is a lot of pretty constant wind, particularly at night, I might add.


Great for boats.  Boat mounted turbines max out their performance when you're actually under sail, so its a little different than a land based turbine.

Wind generators really produce power when sailing on a reach. The wind coming off the main sail gets directed back to the wind generator at a higher wind speed causing the wind generator to produce power.

The coast here is windy enough to make them work at anchorage, but that isn't a given everywhere.




I had a hairbrained idea at one time that you could set up a vertical axis wind turbine on a boat that would be speed regulated by a "governor" (sort of like those steam engine governors that slow down or speed up with the centrifugal force of weights) type rotor assemply that would reduce wind exposure when the wind got too strong and increase it to max when the wind was weak. I fancied that the mast of this wind turbine would have to be REALLY strongly attached to the frame of the boat, simply because the gyroscopic effect would be fighting the rocking of the boat in normal seas, trying to tear it loose, all the time.

It was probably a bad idea but I enjoy those types of thought exercises, even if they never come to a hill of beans.  8)

Way back in the early years of the 20th Century an ocean liner owner got the bright idea to use giant gyroscopes bolted to the bottom inside base of the ocean liner so the ship would not rock in high seas. When the ship got into some rough seas, the huge and weighty gyroscopes (there were around four of them placed equidistantly along the bottom inside), each as tall as three humans, tore the bolts off. Those dadgum giant gyroscopes just did not wanna go where the ship was going.

Of course, that was the end of that idea.

I had a flight student that was an ocean liner officer. He invited me on board and showed me the bridge. Since he was learning to fly and knew the ship controls would interest me, he showed me how the "wings" of the ocean liner worked. The vanes under the water line are used to generate hydrodynamic "lift" up or down, like ailerons on an aircraft (vanes on the port side work opposite the vanes on the starboard side). He explained those vanes keep the liner from rocking much in rough seas. Let me tell you, they are not that small, even though they are much smaller relative to the ship body than aircraft wings are to a fuselage. Those vanes are very tough as well. If water/wave pressure from a surprise sea can tear off a ship's rudder, those hydrodynamic vanes need to be super strongly attached.

I guess that's the way they finally went when the gyroscope idea didn't work out. That was way back in 1970. I don't know if they still use "wings" under water to stabilize ocean liners.   
Posted by: AGelbert
« on: June 17, 2018, 03:28:42 pm »

Agelbert NOTE: This article is 5 years old, but worth your attention. Perhaps it has not gained much attention, simply because the units are not for huge wind turbines that get all the news. Nevertheless, they are doing a great service for smaller installations like homes and farms (see video at the end of this article and 2017 press release).
Shifting Gears on Wind Turbines

Tom Lombardo posted on October 13, 2013 | 2 Comments | 16387 views

To gear or not to gear?

Most wind turbines have gearbox transmissions that connect the slowly spinning turbine with the speed-hungry generator. But gearboxes have disadvantages: they’re noisy, complex, and prone to failure. Gearboxes need regular maintenance and lubrication, increasing their total cost of ownership. Some manufacturers have opted for gearless direct-drive turbines, but there’s a trade-off: because the shaft spins slowly, they require much larger permanent-magnet generators, increasing the weight and initial cost of the turbines. A new technology may capture the best of both designs.

Windtech has partnered with Future Force LLC to build a turbine based on the Zero Contact TransmissionTM (ZCT) patented by Future Force. The technology uses a transmission of sorts, but instead of mechanical gears, belts, or chains, the ZCT uses neodymium permanent magnets to make the generator in the turbine spin five times faster than the rotor. Lab tests conducted at the University of St. Thomas (Minnesota) have shown the ZCT to be 98% efficient at transferring energy from its input to its output.


As shown above, the rotor drives the main shaft, which is magnetically coupled (via the ZCT) to five independent generators, each spinning five times faster than the rotor. (The picture only shows four generators, but their documentation says five. There must be one in the middle.) This provides  redundancy; the turbine could withstand the failure of one or two generators and still produce some power. The turbine is capable of generating substantial energy at low wind speeds; its peak power occurs when the wind speed is 8.1 m/s (18 mph), where comparable turbines require speeds in excess of 12 m/s (27 mph) to achieve peak output. Its startup speed is a meager 2.2 m/s (5.0 mph). It’s designed for locations with average wind speeds of 4 m/s (8.8 mph), which makes wind power viable in 50% more places.


Windtech is currently testing a prototype of its 100E 10 kW turbine (pictured below) in Glencoe MN. They plan to sell the 100E at a price that’s competitive with other units of similar size, making it more likely that customers will take this turbine out for a spin.



https://www.engineering.com/ElectronicsDesign/ElectronicsDesignArticles/ArticleID/6466/Shifting-Gears-on-Wind-Turbines.aspx

Agelbert NOTE:  The following video shows WINDTECH 8 KW VAWT AND 14 KW HAWT WIND TURBINE for small sites and homes ( 📢 Eddie, check this out!) and the BREAK THROUGH TECHNOLOGY of their patented Zero Contact Transmission (ZCT), a unique system that eliminates contact friction

 



Zero-Contact Transmission logs 15,000 hours of operation 👀   

June 19, 2017

Future Force Zero Contact Transmission (ZCT) hits 15,000 hour milestone. The ZCT designed and built for WindTech, Inc. just surpassed 15,000 hours of operation with NO lubrication.   

The ZCT utilizes magnetic propulsion so there is no friction or need for lubricants. Mike Tkadlec, founder of Future Force and inventor of the Zero Contact Transmission said, “to deploy a ZCT in a wind turbine is perfect for proving the viability of a high torque magnetic propulsion transmission whichoperates at 35% greater efficiency  than a standard oil-encased gearbox. This is a major breakthrough in advancing to the next size ZCT for mW generators without lubrication.”

Future Force, LLC is a privately-owned company offering licensing to it’s patented magnetic propulsion technologies. More information can be found at www.futureforcellc.com

http://futureforcellc.com/futureforce/2017/06/19/zero-contact-transmission-logs-15000-hours-operation/

I have the two turbines I bought from Mike after I took my turbine building course. I built one like my little one, and I helped build one like my bigger one, but I had Mike build the ones I bought. Experience is worth something. His simple designs have been proven. Nothing fancy, but plenty of them in service.

For wind, its a relatively easy job to build a turbine from commonly available stuff, if you can get magnets. I went for simple rather than high efficiency.

Sourcing and erecting a tower is a much bigger job, imho, than building a turbine. And with 9mph wind, it's more of a novelty here. But on some days in winter it would no doubt be nice to have a turbine spinning, even here. I have not ever gotten a tower up. Expensive, complicated job, usually requiring a crane. I've been shopping for a good tower deal forever.

I have a low wind Mallard LW built from a repurposed Delco car alternator, and a bigger Mallard SP80.



http://www.mikeswindmillshop.com/product/low-wind-mallard-lw


Nice! micro wind has been mostly destroyed by low cost solar. as mentioned the tower costs and maintenance make them non competitive except on the best wind sites. ...

True. As you said, the advantage a wind turbine could have over photovoltaic is strictly in places where there is a lot of pretty constant wind, particularly at night, I might add. 


Posted by: AGelbert
« on: June 14, 2018, 05:05:10 pm »

CleanTechnica
Support CleanTechnica’s work via donations on Patreon or PayPal!

Or just go buy a cool t-shirt, cup, baby outfit, bag, or hoodie.

Ørsted Officially Opens 573 Megawatt Race Bank Offshore Wind Farm

June 14th, 2018 by Joshua S Hill

Danish offshore wind energy developer Ørsted officially opened the 573 megawatt (MW) Race Bank Offshore Wind Farm Wednesday, which will provide over half a million UK homes with clean electricity.


The Race Bank Offshore Wind Farm has had something of a long history, and was only pulled out of trouble in late 2013 when DONG Energy (now known as Ørsted) acquired 100% ownership in the project from British multinational energy and services company Centrica.

“Race Bank fits very well into our existing pipeline of offshore wind projects and will contribute to the achievement of our strategic target of constructing 6,500 MW by 2020,” said Samuel Leupold, Executive Vice President of DONG Energy Wind Power, at the time. “The addition of up to 580 MW to our UK project portfolio underlines our commitment to the UK market in general, and to the UK offshore wind sector in particular.”


A year and a half later, DONG Energy awarded a wind turbine order to Siemens (now Siemens Gamesa) to provide 91 of its 6 MW wind turbines for the project. Located 32 kilometers off the British eastern coast, Race Bank was one of the big projects announced through the early part of this decade, but has since been eclipsed by much larger projects with much bigger wind turbines.

At the end of 2016, DONG Energy divested 50% ownership in the project to the Macquarie European Infrastructure Fund 5 and Macquarie Capital, the principal investment arm of Macquarie Group in a deal that was worth £1.6 billion ($1.2 billion).

And finally, at the beginning of February this year, Ørsted announced that Race Bank had reached full power output across all of its 91 wind turbines and had already generated 1 terawatt-hour (TWh) of power 👀 since construction had begun.

video at article link of Race Bank Inauguration  8)
 
The project was therefore officially opened at a ceremony in Grimsby on Wednesday, home to Ørsted’s East Coast Hub, the UK’s largest offshore wind Operations and Maintenance (O&M) base. The project, beyond being a massive provider of clean electricity, also makes use of a new way of carrying out offshore maintenance, using a Service Operation Vessel that remains offshore with technicians working 14 days and 14 days off. 


“Race Bank is a fantastic infrastructure project and underlines Ørsted’s contribution to the UK’s energy transition. It’s also another clear signal of our firm commitment to Grimsby and the Humber, and the UK supply chain for offshore wind,” said Matthew Wright, Managing Director at Ørsted UK. “Race Bank is a hugely significant and innovative project, featuring the first-ever turbine blades to be made in Hull and becoming our first wind farm in the UK to be operated using a new Service Operation Vessel. It’s also one of the fastest projects we have ever built, with a fantastic safety record, and this is testament to the hard work of the project team and the great relationship we have with our partners.

“Powering over half a million homes every year, Race Bank is another positive step towards delivering the UK’s decarbonised energy system of the future.”

https://cleantechnica.com/2018/06/14/orsted-officially-opens-573-megawatt-race-bank-offshore-wind-farm/
Posted by: AGelbert
« on: June 01, 2018, 09:23:33 pm »

EcoWatch

Lorraine Chow

May. 30, 2018 07:38AM EST

11 Turbines Successfully Installed at Wind Farm Trump 🦀 Tried to Block  ;D

SNIPPET:

The world's most powerful wind turbines have been successfully installed at the European Offshore Wind Deployment Centre (EOWDC) off Aberdeen Bay in Scotland's North Sea.

The final turbine was installed on Saturday just nine weeks after the first foundation for the 11-turbine offshore wind farm was deployed, according to the developers Vattenfall.

Incidentally, the project was at the center of a contentious legal battle waged—and lost—by Donald Trump, before he became U.S. president. Trump felt the "ugly" wind turbines would ruin the view of his Menie golf resort.

"I am not thrilled," Trump said in 2006, as quoted by BBC News. "I want to see the ocean, I do not want to see windmills."

But in 2015, the UK Supreme Court unanimously rejected Trump's years-long appeal against the wind farm, which now stands 1.2 miles from his luxury golf course.

read more:

https://www.ecowatch.com/wind-turbines-scotland-trump-2573562151.html
Posted by: AGelbert
« on: May 31, 2018, 05:59:28 pm »



Van Oord 💫 Wins Offshore Wind 💨 Contract in Taiwan


May 30, 2018 by gCaptain

Map shows the location of the Yunlin offshore wind farm.

Dutch marine contractor Van Oord announced on Wednesday that it has been selected as the preferred contractor for a large 640 MW offshore wind project in Taiwan.

The Yunlin offshore wind project is being developed by German wind developer wpd.

Van Oord is responsible for the design, manufacturing and installation of the wind farm’s eighty foundations, which will be constructed eight kilometers off the coast of Taiwan’s Yunlin prefecture. Work is expected to start immediately. 

Taiwan Emerging as Battleground to Expand Offshore Wind in Asia

Van Oord says the contract has a value of approximately EUR 500 million.

The Taiwanese government aims to install 5.5 GW of offshore wind projects by 2025.

The installation of the first foundations for the Yunlin project are expected to start in early 2020.

Dawn of Asia’s Offshore Wind Boom Lures Japanese Trading Houses

For Van Oord, the Yunlin project represents its first offshore wind project in Taiwan, as well as its first outside of Europe.

In Asia, and especially in Taiwan, large investments are being made in offshore wind. The Yunlin project is a great opportunity for Van Oord to show our expertise outside Europe. We look forward to working with our local partners to enable the energy transition of Taiwan,” commented CEO Pieter van Oord.

http://gcaptain.com/van-oord-wins-offshore-wind-contract-in-taiwan/
Posted by: AGelbert
« on: May 30, 2018, 10:48:07 pm »

`Dawn’ of Asia’s Offshore Wind Boom 🌟 Lures Japanese Trading Houses

May 29, 2018 by Bloomberg

Photo: Tilman Ehrcke / Shutterstock

SNIPPET:

“Asia is at the dawn of development of its offshore wind market,” Yoshio Kometani, chief operating officer of Mitsui’s infrastructure projects business unit, said in an email. “Taiwan is especially promising as it has favorable natural conditions and the government is taking initiative to improve investment and development opportunities.”

Buffeted by strong breezes in the Taiwan Strait, the island has emerged as a hot spot for clean power projects as President Tsai Ing-Wen works to phase out nuclear energy while adding 25 gigawatts of renewable energy by 2025. The island is seeking to boost offshore wind capacity to 5.5 gigawatts over the same timeframe, from just 8 megawatts.

In Japan, the government is working on legislation that standardizes offshore wind development guidelines and streamline the approval process for new projects. In March, the country’s Ministry of Economy, Trade and Industry updated its offshore wind map with more data on conditions and the agency is accelerating the environmental impact assessment process.

Globally, there are about 18 gigawatts of offshore wind capacity and Europe accounts for more than 80 percent of that, with the rest mostly in Asia, according to Bloomberg New Energy Finance. Asia will add 3.5 gigawatts of offshore wind capacity in 2030, more than double the 1.5 gigawatts to be added in Europe the same year, according to estimates in a December report from BNEF.

To be sure, most of Asia’s offshore wind development is occurring in China, a place where historically Japanese companies have a small footprint. The world’s largest energy user is ranked third globally for offshore wind capacity with about 2.8 gigawatts as of last year, after the U.K. and Germany, according to BNEF.

Japanese trading houses have been making moves into offshore wind in overseas markets for years, gaining experience to participate the coming Asia boom. Marubeni owns a stake in a project in the U.K. and Sumitomo Corp. owns parts of two Belgium and two other U.K. offshore wind farms.

Mitsubishi, which will start construction of a 950-megawatt wind project off the U.K. coast with partners this year, aims to double its renewable output so that it accounts for about 20 percent of its total power production by 2030. Offshore wind will play an important role in that expansion, according to Yusuke Takeuchi, who heads a power business development team at Mitsubishi.

Full article:

http://gcaptain.com/dawn-of-asias-offshore-wind-boom-lures-japanese-trading-houses/
Posted by: AGelbert
« on: May 24, 2018, 07:01:57 pm »

Agelbert NOTE: This article answers the question that has ALWAYS been in the category of "Do wild bears poop in the woods".



Can we get 100% of our energy from renewable sources? 

By Michelle Froese | May 18, 2018

This article comes from Science Daily, with materials provided by Lappeenranta University of Technology.


Scientists have demonstrated that there are no roadblocks on the way to a 100% renewable future.

֍ Is there enough space for all the wind turbines and solar panels to provide all our energy needs?

֍ What happens when the sun doesn’t shine and the wind doesn’t blow? 🤔

֍ Won’t renewables destabilize the grid and cause blackouts?    

In a review paper last year in the high-ranking journal Renewable and Sustainable Energy Reviews, Master of Science Benjamin Heard 🐉 and colleagues 🦕 🦖 presented their case  against 100% renewable electricity systems. They doubted the feasibility of many of the recent scenarios for high shares of renewable energy, questioning everything from whether renewables-based systems can survive extreme weather events with low sun and low wind, to the ability to keep the grid stable with so much variable generation.

Now scientists have hit back with their response to the points raised by Heard and colleagues. The researchers from the Karlsruhe Institute of Technology, the South African Council for Scientific and Industrial Research, Lappeenranta University of Technology, Delft University of Technology and Aalborg University have analysed hundreds of studies from across the scientific literature to answer each of the apparent issues.

They demonstrate that there are no roadblocks on the way to a 100% renewable future.

“While several of the issues raised by the Heard paper are important, you have to realise that there are technical solutions to all the points they raised, using today’s technology,” says the lead author of the response, Dr. Tom Brown of the Karlsruhe Institute of Technology.

Quote
“Furthermore, these solutions are absolutely affordable, especially given the sinking costs of wind and solar power,” adds Professor Christian Breyer of Lappeenranta University of Technology, who co-authored the response.

Brown cites the worst-case solution of hydrogen or synthetic gas produced with renewable electricity for times when imports, hydroelectricity, batteries, and other storage fail to bridge the gap during low wind and solar periods during the winter. For maintaining stability there is a series of technical solutions, from rotating grid stabilisers to newer electronics-based solutions. The scientists have collected examples of best practice by grid operators from across the world, from Denmark to Tasmania.

Furthermore, these solutions are absolutely affordable, especially given the sinking costs of wind and solar power.

The response by the scientists has now appeared in the same journal as the original article by Heard and colleagues.

There are some persistent myths that 100% renewable systems are not possible,” says Professor Brian Vad Mathiesen of Aalborg University, who is a co-author of the response. “Our contribution deals with these myths one-by-one, using all the latest research. Now let’s get back to the business of modeling low-cost scenarios to eliminate fossil fuels from our energy system, so we can tackle the climate and health challenges they pose.”   


https://www.windpowerengineering.com/business-news-projects/can-we-get-100-of-our-energy-from-renewable-sources/


Posted by: AGelbert
« on: May 17, 2018, 02:11:02 pm »



Time-Lapse: World’s Most Powerful ⚡ Offshore Wind Turbine Installed Off Scotland

May 16, 2018 by gCaptain

Photo: Vattenfall

A time-lapse video has been posted online showing last months installation of the world’s most power wind turbine at Vattenfall’s European Offshore Wind Deployment Centre located just off the north-east coast of Scotland in Aberdeen Bay.

The turbine is the first of 11 to be deployed at the “ground-breaking” facility and one of two turbines at the wind farm that have been modified to generate 8.8MW of clean energy from the less powerful but still impressive 8.4MW versions.

Vattenfall says the installation, which took place on April 9, marks the first time an 8.8MW model has been deployed commercially in the offshore wind industry.

Together with the nine 8.4MW turbines, the European Offshore Wind Deployment Centres (EOWDC) will have an output to 93.2MW, equivalent to 70% of Aberdeen’s domestic electricity demand or approximately 134,128 tonnes of CO2 per year.

MHI Vestas has specially designed the V164-8.4 MW and V164-8.8 MW turbines which all have a tip height of 191 meters. Each blade is 80m long and the 164m rotor has a circumference larger than that of the London Eye’s.

EOWDC project director at Vattenfall, Adam Ezzamel, said: “The first turbine installation is a significant achievement and credit to the diligence and engineering know-how of the project team and contractors. For it to be one of the 8.8MW models makes it an even more momentous moment because it further endorses the EOWDC as a world-class hub of offshore wind innovation.”

The turbines were transported from Esbjerg to Aberdeen by Swire Blue Ocean’s wind farm installation vessel, the Pacific Orca, which lifted the turbines into position on the previously-installed foundations.

Check out the time-lapse below:


http://gcaptain.com/time-lapse-worlds-most-powerful-offshore-wind-turbine-installed-off-scotland/

+-Recent Topics

Flight by ZaymondRig
May 19, 2019, 11:59:13 am

Doomstead Diner Daily by Surly1
May 19, 2019, 08:23:44 am

Photvoltaics (PV) by AGelbert
May 18, 2019, 05:38:41 pm

🦕🦖 Hydrocarbon 🐍 Hellspawn Mens Rea Actus Reus modus operandi by AGelbert
May 18, 2019, 01:01:27 pm

Viruses of the Mind by AGelbert
May 17, 2019, 11:02:29 pm

The Anti-Democratic Elite Fix Was IN From The Very Start of the USA by AGelbert
May 17, 2019, 10:28:49 pm

Genocide by Surly1
May 16, 2019, 09:07:47 am

Global Warming is WITH US by Surly1
May 16, 2019, 07:39:36 am

U.S. History & Politics, Climate Change, Trump Impeachment & Standing Rock: CONTEXT by AGelbert
May 15, 2019, 05:29:08 pm

Carbon Neutral Buildings by AGelbert
May 15, 2019, 04:23:03 pm