Check out the giant ship critical to building the world’s biggest offshore wind farm

Published

2 years ago

October 16, 2023

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The Jan De Nul Group’s Voltaire in waters off China in Dec. 2022. As wind turbines get bigger, the vessels that install them are having to change, too.

VCG | Visual China Group | Getty Images

A project to build a facility described as “the world’s largest offshore wind farm” took a big step forward this month by producing its first power.

Located in the North Sea, over 130 kilometers off England’s northeast coast, the Dogger Bank Wind Farm still has some way to go before it’s fully operational, but the installation and powering up of its first turbine is a major feat in itself.

That’s because GE Vernova’s Haliade-X turbines stand 260 meters tall — that’s higher than San Francisco’s Golden Gate Bridge — and have blades measuring 107 meters.

Turbine installation at Dogger Bank has required a huge amount of planning and preparation, with the Voltaire — a specialist vessel designed and built by the family-owned Jan De Nul Group — playing a key role.

With a lifting capacity of 3,200 metric tons, the Voltaire — named after the 18^th-century French philosopher — will have installed a total of 277 Haliade-X turbines when its work is complete.

This image, from Dec. 2022, shows Jan De Nul Group’s Voltaire in China. A specialist installation vessel, the Voltaire has a lifting capacity of over 3,000 metric tons.

VCG | Visual China Group | Getty Images

Described by Dogger Bank as the “largest offshore jack-up installation vessel ever built,” in many ways, it’s the pinnacle of an extensive supply chain involving numerous businesses and stakeholders.

The logistics are complex and multi-layered, with water depth a particular issue.

The sea in the Dogger Bank Offshore Development Zone is up to 63 meters deep, meaning the Voltaire’s ability to work in deeper waters is crucial.

This is where its four legs come into play.

According to Jan De Nul, the legs of the Voltaire — which was built at the COSCO Shipping Shipyard in China — enable it to lift itself above the water’s surface.

With each leg measuring roughly 130 meters in length, they highlight the scale of equipment required to install huge offshore wind turbines like GE’s Haliade-X.

In an online Q&A before installations at Dogger Bank began, Jan De Nul’s Rutger Standaert spoke of their importance. “Thanks to those legs, the Voltaire can effectively operate at a water depth of 80 meters,” Standaert, who is manager of vessel construction at the business, said.

He noted that the Voltaire’s capabilities would enable installations further out to sea, allowing it to play a key role in the emerging floating offshore wind sector.

“Off the Scottish coast, for example, expensive floating windfarms are often the only way to tap into offshore wind,” he said. “The water is too deep for fixed windfarms, but the Voltaire can offer new opportunities.”

Thinking big

Once completed, the Dogger Bank Wind Farm will have a total capacity of 3.6 gigawatts (GW) and be able to power as many as six million homes per year, according to its developers.

Work on the project is taking place over three phases: Dogger Bank A, B, and C. A fourth phase of the wind farm known as Dogger Bank D has also been proposed, and would increase its capacity even further.

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Søren Lassen is head of offshore wind research at Wood Mackenzie, a research and consultancy group. He described Dogger Bank as “a huge project, especially if you combine the three phases.”

“It is a project that requires a lot of preparation,” he told CNBC. “There’s the logistics in terms of having the vessels to do the installation … and then of course, you also have the logistics in terms of getting the components to the marshaling port.”

Both of these aspects were being made “a lot more complicated” by the use of next-generation turbines and a next-generation installation vessel, Lassen said.

“You have … a lot of innovation that goes into this. And not only do you need a new vessel or new components, you also need new factories to build those components.”

As such, a slew of upgrades and adjustments were needed to “reverberate throughout the entire value chain” for operations to run smoothly, he added.

Bigger turbines, bigger challenges?

This image, from June 2023, shows tower sections of GE’s Haliade-X wind turbine at a site in the U.S.

David L. Ryan | The Boston Globe | Getty Images

Thanks to their sheer size, larger turbine designs have created a specific set of needs for the offshore wind sector and sites like the Dogger Bank Wind Farm.

“From cranes to vessels, we use a number of specially designed pieces of equipment to transport the Haliade-X turbines that will be used in this project,” a spokesperson for GE Offshore Wind said in a statement sent to CNBC.

Wood Mackenzie’s Lassen stressed the importance of having dedicated transportation vessels, noting that the towers of turbines need to be broken into three or four sections in order to fit on board.

Massive blades represent the biggest challenge, he said, as they have to be laid flat. “And that just means that you need a very, very long transportation vessel, [and] that you need to stack them up accordingly.”

Blades of the Haliade-X turbine stacked on top of each other at a site in the U.S. The past few years have seen companies develop increasingly large wind turbines.

David L. Ryan | The Boston Globe | Getty Images

Meanwhile, delays or bottlenecks can have far-reaching — and expensive — consequences.

Lassen cited the example of blades not being delivered on time, which leads to vessels having to “go away and then come back half a year later to do the installation. This is very costly, of course.”

And delays also lead to lost revenue.

“These projects are going out [and] generating a lot of power from the day that they’re being installed, pretty much,” Lassen added.

“So any delays [and] you’re also losing a lot of revenue, especially right now when the power prices are really, really high.”

The bigger picture

Offshore wind farms are set to play a significant role in reducing emissions and hitting net zero goals in the years ahead — but a supply chain that’s well-run and reliable will be key to the industry’s success.

This is set to cost serious money. According to Wood Mackenzie, a base case of 30 GW of installations per year by 2030 — excluding China — will require investment of around $27 billion by 2026 to build out supply chains.

“The supply chain needs to invest,” Lassen said, adding that it also needed capital, certainty and concrete, firm orders. However, cost pressures mean there is currently uncertainty over projects planned for 2025, 2026 and 2027.

“Any delays to these projects takes away volume from the supply chain, and the supply chain needs that volume to convert it into revenue to build new factories,” Lassen explained.

It is crucial that projects planned for the next few years go ahead, he added. “That helps the underlying supply chain ramp up so they can build the capacity [for] ’27, ’28, ’29 and well into the 2030s as well.”

Environment

Tesla has yet to start testing its robotaxi service without driver weeks before launch

Published

8 hours ago

May 15, 2025

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Tesla has yet to start testing its robotaxi service without driver weeks before launch

Tesla has reportedly yet to start testing its robotaxi service in Austin without a safety driver behind the wheel – just weeks before the planned launch.

For months now, Tesla and CEO Elon Musk have been hyping the launch of “Tesla Robotaxi”, a Uber-like ride-hailing service powered by autonomous Tesla vehicles, starting with a launch in Austin, Texas in June.

We have extensively reported that this launch is disappointing compared to what Tesla promised for years: that all its consumer vehicles built since 2016 are capable of self-driving.

Instead, Tesla plans to build an internal fleet of “10-20” Model Ys and have them offer ride-hailing services in a geo-fenced area around Austin, Texas, helped by human teleoperations. This is very similar to what Waymo has been offering in other cities for years, specifically in Austin, for months now.

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Even with the significant downgrade in self-driving capabilities promised with this project, there are many doubts about Tesla’s ability to achieve the lesser goal.

That’s because the robotaxi service will be based on Tesla’s ‘Supervised Full Self-Driving’ program, which is currently achieving about 500 miles between critical disengagements fleet-wide, according to the latest crowdsourced data.

Tesla will be able to improve on that by optimizing a version for the geo-fenced area in Austin and it has been training its neural nets for that for months with vehicles going around Austin.

However, a new report now claims that Tesla has yet to start testing its service without safety drivers at the wheel – similar to Tesla’s public ‘Supervised FSD’. The Information wrote in a new report:

Elon Musk’s deadline for launching Tesla’s first robotaxi service, in Austin, Texas, is weeks away, but the company hadn’t started testing its cars without a human safety driver as of last month, according to an engineer close to the testing and a former employee. That’s a crucial step required before Tesla can launch the pilot service for customers.

For comparison, before launching its paid ride service in Austin, Waymo tested its vehicles with safety drivers in the area for 6 months and then without safety drivers for another 6 months.

Waymo has now taken over a significant market share of ride-hailing rides in the Texas capital, but it still has limitations; for example, it doesn’t drive on the interstate.

The report also mentions that Tesla has been working with local emergency services in Austin to develop intervention plans in order to avoid causing issues if its autonomous vehicles fail.

Electrek’s Take

This is the biggest softball goal. It’s a fraction of what was promised, it’s something that others have achieved before. It’s a punt created for Tesla to finally get a “win” in self-driving.

If they can’t even make it, it would be disastrous, but at least, I hope that it will finally open the eyes of many Tesla shareholders to the reality that Tesla is actually behind in autonomous driving and that Musk’s latest claims that Tesla will have “millions of robotaxi on the road” in 2026 are just the same as when he claimed it would happen in 2025, 2024, 2023, 2022, 2021, 2020, and 2019: corporate puffery.

My main concern now is for public safety. I have little hope of US regulators being able to stop Tesla considering Trump is firing anyone who got in Musk’s way after he gave him over $250 million.

If Tesla brings its cowboy approach to this, it could get bad quickly.

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Environment

Rivian CEO RJ Scaringe shares more detailed images of the R2’s Maximus drive unit

Published

8 hours ago

May 15, 2025

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Rivian CEO RJ Scaringe shares more detailed images of the R2's Maximus drive unit

The development of Rivian’s R2 validation builds continues to progress. We know so because the American automaker’s founder and CEO, RJ Scaringe, continues to pepper us with welcome updates with plenty of fantastic images. The latest post features the inner workings of Rivian’s Maximus drive unit, which will propel the upcoming R2 EVs when they hit the market next year.

Another day, another exciting social media update from RJ Scaringe. Nine days ago, the Rivian CEO shared a peek at the company’s new Maximus drive unit, designed to be more compact and efficiently built to help reduce cost-per-unit production.

Our only look was from outside the drive unit’s casing at the time, but it was exciting news nonetheless. As an encore, Scaringe posted photos of the R2 validation builds on a pilot line at the automaker’s facility in Normal, Illinois.

This evening, Scaringe took to Instagram and X once again to share a better look at the inner workings of the Rivian Maximus drive unit. Check it out:

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RJ shares more images of Rivian’s Maximus development

Rivian’s CEO posted the three images above, which showcase some interesting perspectives of the developing drive unit. As previously shared by Rivian, Maximus uses a new continuous winding technique that reduces the total welds per stator and thus the total overall cost of building each one.

For comparison, Rivian’s current Enduro drive unit requires 264 stator welds, while Maximus only needs 24. You can see the stator windings in the image above to the left. Scaringe shared excitement in the progress of the Rivian team’s Maximus drive unit as well as some insight in his post:

I love the packaging on Maximus — the drive unit for R2. It has a side mounted inverter that utilizes flat area at the end of the motor to minimize the length of bus bars, keeping them light and efficient. The large planar shape also allows all processing and power electronics to exist on a single printed circuit board.

The inverter chassis closes out the oil cooled motor cavity and seamlessly routes coolant from the power modules to the drive unit’s heat exchanger with no extra parts.

Overall, the inverter part count is reduced by 41% relative to Enduro and structural inverter lid saves more parts and fasteners by also serving as the drive unit mount. I love this design efficiency. (heart emoji)

Looks fantastic, RJ. We can’t wait to see the visual progress of the R2 you share next!

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Environment

EV sales are up, Tesla sales are down, and new electric Toyota goodness

Published

8 hours ago

May 14, 2025

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EV sales are up, Tesla sales are down, and new electric Toyota goodness

On today’s thrilling episode of Quick Charge, we’ve a huge spike in global EV sales and a huge dip in Tesla deliveries. Plus a whole bunch of news from Toyota, including an updated bZ that’s just a bit better than before … but is a bit better going to make a big difference?

We’re also on track for more than 1 in 4 new cars sold this year to be electric, with a whole lot more hybrids coming in to make up the difference and drive fuel demand down to a new yearly low. All this, plus the top 5 cheapest EVs to insure when you hit the play button.

Source Links

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New episodes of Quick Charge are recorded, usually, Monday through Thursday (and sometimes Sunday). We’ll be posting bonus audio content from time to time as well, so be sure to follow and subscribe so you don’t miss a minute of Electrek’s high-voltage daily news.

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