Anyone who looks out at the ocean may feel awed by the power apparent in every wave. That power has the potential to provide energy to land-based homes and businesses, as well as floating facilities and vessels at sea. But how can we transform the ocean’s energy into usable forms, such as electricity or desalinated water?
One way to harness the ocean’s energy is through a device called a wave energy converter, or WEC. To date, WEC designs have been generally centered on large, rigid bodies that float in the water and move relative to each other as waves roll past. These bodies typically absorb ocean wave energy and focus that energy into a centralized conversion mechanism, such as a rotary generator or hydraulic piston.
Now, the National Renewable Energy Laboratory (NREL) is exploring ways to significantly advance wave energy converter design and development. With funding from the U.S. Department of Energy’s (DOE’s) Water Power Technologies Office, NREL researchers are developing concepts in which many small energy converters can be aggregated to create a single structure. With this new approach to developing wave energy, the domain of distributed embedded energy converter technologies (DEEC-Tec) could help the promise of substantial renewable energy generation from ocean waves become a reality.
Figure 1. Stretched and deformed sample volume of a flexWEC’s structure illustrating the basic use of distributed embedded energy converters (DEECs) to create power from wave energy. The sample volume has two sections where material is removed to clarify their respective arrangements: (1) the middle section has the supporting compliant material framework removed, and (2) the right section has both the supporting compliant framework and the DEECs removed. The illustration showcases how the combined semicontinuous nature of DEEC technologies supports the development of materials and structures for ocean wave energy harvesting and conversion devices.
Why Distribute and Embed Multiple Energy Converters?
One of the most innovative elements of DEEC-Tec is its ability to create flexible ocean wave energy converters, sometimes known as flexWECs. These devices have inherently broad-banded ocean wave energy absorption and conversion characteristics, meaning they can harvest energy across a wide range of ocean wave heights and frequencies.
DEEC-Tec provides a new scope of possibilities for how ocean wave energy can be harvested and converted and how flexWEC designs could power a variety of end uses both on land (powering homes and businesses) and at sea (powering navigation buoys and marine vehicles). Some of these uses will support DOE’s Powering the Blue Economy™ initiative, which aims to advance marine renewable energy technologies, such as navigation buoys or autonomous underwater vehicles, to promote economic growth in industries such as aquaculture.
“Our goal with DEEC-Tec is to vastly broaden how we currently conceptualize and envision the use of ocean wave energy,” said NREL researcher Blake Boren, who has been studying wave energy converters for over 10 years. “There is a tremendous range of possibilities for how we can develop these DEEC-Tec-based wave energy converters, and we are accelerating that exploration process.”
Figure 2. Three possible flexWEC archetypes showcasing the nondeformed and dynamically deformed states of DEEC-Tec-based flexWEC structures. The yellow flexible bodies in each archetype represent the DEEC-based, compliant structures illustrated in Figure 1. (Note: Nothing is to scale; flexWEC archetype figures and scenes are solely illustrative.)
How DEEC-Tec Moves Wave Energy Forward
DEEC-Tec concepts are assembled from many small energy converters that, together, form a structure that can undulate like a snake, stretch and bend like a sheet of fabric, or expand and contract like a balloon. As the overall structure bends, twists, and/or changes shape as the ocean waves roll past, each embedded energy converter can turn a portion of that ocean wave energy into electricity.
A flexWEC has several advantages:
A broader spectrum of energy capture. With a wide range of movement and deformations available, DEEC-Tec-based wave energy converters absorb and convert ocean wave energy across a much broader range of wave conditions — both in terms of size and frequency — when compared with rigid-body converters.
Mechanical redundancy. The ability to use many hundreds or thousands of distributed embedded energy converters can ensure that ocean energy conversion occurs even if one or more of those converters stops functioning.
Resilience. The DEEC-Tec-based wave energy converter’s flexibility grants an inherent survival mechanism: the ability to ride out and absorb excessive, dangerous surges of energy from large storms and rough seas.
Favorable materials. DEEC-Tec-based wave energy converters could be manufactured from recycled materials or simple polymers. These replace heavier, sometimes more expensive materials that have historically been used for wave energy converter development, such as steel or rare-earth elements needed for large permanent magnets. Moreover, existing mass-manufacturing techniques could be used for straightforward and cost-effective DEEC-Tec component fabrication.
Easier installation. DEEC-Tec-based wave energy converters can be folded, deflated, or otherwise made compact for transport from a manufacturer to a deployment site. Likewise, for installation, they can be expanded to cover broad surface areas as needed. This would allow for robust energy capture with lower capital costs.
Reduced maintenance schedules. Monitoring the relative performance of many small devices determines the need for DEEC-Tec-based wave energy converter maintenance throughout the structure. The inherent redundancy of the structure potentially translates to less frequent inspections and maintenance requirements.
Near-continuous structural control. A DEEC-Tec-based wave energy converter is composed of numerous small transducers — mechanisms that convert one form of energy into another. Some of these can serve as simple electrical actuators, which can change the converter’s shape and movement in response to ocean wave conditions. This will allow for greater ocean wave energy harvesting and conversion control.
Bending to the Future
While there are many advantages to using DEEC-Tec in the research and development of ocean wave energy converters, there are still unknowns that need to be understood and addressed. To this end, NREL researchers are identifying the materials, structural designs, electronic systems, and manufacturing methods that could advance DEEC-Tec concepts for marine renewable energy. NREL’s work also includes DEEC-Tec subcomponent validation and codesign, computational models to simulate performance, and device proofs of concept for building and validation.
As part of this research, NREL is collaborating with outside institutions, such as the University of Colorado–Boulder, Netherlands-based energy company SBM Offshore, the U.S. Naval Research Laboratory, and Sandia National Laboratories.
Rivian and VW have recently opened a partnership, despite the brands have very similar upcoming electric adventure vehicles with the Rivian R2 and VW Scout. But at a roundtable discussion with Rivian’s CEO RJ Scaringe, he said there’s more than enough room for the brands to coexist with each other.
Recent news about Rivian and VW’s software partnership, with VW investing over $5 billion into Rivian and forming a joint venture to adopt Rivian’s zonal architecture for the underpinnings of VW’s vehicle communications, has led to some interesting questions about how the details of the partnership would work out.
At the top of many people’s minds has been: isn’t it a little weird that the Rivian-like Scout brand will now essentially be competing with itself for the adventure EV market?
The question has been answered before – or perhaps more specifically non-answered – in press conferences around the official opening of the joint venture last week.
Generally, comments ran along the line of Rivian working to bring its software expertise to bear across VW’s brands, though the two companies have been a little shy to confirm whether Scout specifically would use Rivian’s software. After all, Scout is a bit of a spinoff from VW, and seems interested in showing some independence on that front, so it could be possible that they work on their own.
But in comments at a roundtable which Electrek attended today ahead of the LA Auto Show, it certainly seemed that Rivian will be working on Scout vehicles. Scaringe said that “we’re going to be supporting their full portfolio of brands – Porsche, Audi, Volkswagen, Scout.”
However, more importantly, Scaringe said that he’s “amused” by the focus that many have had on Scout, or those who consider it a potential threat to Rivian.
Scaringe estimates that there are “less than five” compelling EVs available for under $50k in the market today – and that’s perhaps being charitable. Meanwhile, if you go over to the gas world, there are gobs of choices out there for consumers, and yet they all manage to coexist without issue.
So Rivian has worked hard to distinguish itself from Tesla, for example, and thinks that even if Scout is inspired by Rivian, there’s still room for similar vehicles to coexist.
After all, there are many competing vehicles in many categories – some of which do indeed share underpinnings from separate companies. Just in the EV space, the Kia EV6 and Hyundai Ioniq 5 share a platform, and the Subaru Solterra and Toyota bZ4X are basically identical vehicles. So there has been plenty of history of companies working together to come out with similar or near-identical (rebadged) cars.
That’s not the case here, as Scout and Rivian will be very different in terms of platform and manufacturing. But sharing software shouldn’t be much of an issue – and even if we assume that Scout could cannibalize a segment of the market that Rivian otherwise had a good hold on, Rivian can still benefit from the partnership regardlessl.
Rivian’s main focus in recent years has been getting costs down. The story is that Rivian began scaling production in an extremely difficult time – trying to organize supply contracts at the historical peak of the auto industry (~2018), trying to start a manufacturing program during a global pandemic (2020/2021), and having little clout available to get on the better side of those contracts.
Now, Scaringe said, the situation is better: not only can Rivian show that it has a dominant position in its class – selling more premium SUVs than other EV and even gas brands – but it can also tout that it has support from one of the most established auto manufacturers in the world, Volkswagen. If VW – the second-largest automaker in the world – has enough faith in Rivian to invest $5.8 billion, then surely a supplier can trust that Rivian will stick around long enough to buy more than one set of parts.
Not only that, but the companies could potentially leverage their combined size for larger supply contracts. Say a certain microcontroller is needed for vehicle architecture across Rivian and also VW’s brands, then perhaps the joint venture could recognize much larger economies of scale.
The question also came up over whether Rivian might try to see if VW’s global sales network could help them to sell Rivians, but Scaringe shut that down, saying there is “no interest” in doing so. Rivian would rather stick to its plans of setting up its own stores and doing direct sales.
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Hyundai has officially debuted its Ioniq 9 in advance of the LA Auto Show, with a concept car-like interior that lets you swivel the 2nd row seats and turn your car into a living room.
We’ve been hearing about the Ioniq 9 for some time now, and the time has finally come for its release.
In an event in advance of the LA Auto Show, starting this Friday and with a media preview day tomorrow (which Electrek will be in attendance for), Hyundai showed off the Ioniq 9 which will officially be unveiled at the Auto Show (you can watch via livestream) on the morning of Nov 21st.
The car is what we expected – a large, 3-row SUV, much like the EV9, the Ioniq 9’s cousin that is built on the same platform by Hyundai’s sister company, Kia.
But it also has some features we didn’t expect – like a little more clarity on that “lounge-like” interior we heard about, which turns out not to just be marketing fluff at all. It actually is like a lounge, complete with la-z-boy style footrests and swiveling seats so you can face your friends. More on that in a bit.
The Ioniq 9 comes with a perhaps excessively-large 110.3kWh battery (that extra 300Wh makes a big difference), offering up to 335 miles of range on the Long-Range RWD model with 19-inch wheels. 20- and 21-inch wheels are also available, we imagine with lower ranges.
The large battery will retain the E-GMP platform’s excellent DC charging performance, with the ability to charge from 10-80% in 24 minutes, assuming you’re connected to a capable charger (Hyundai says 350kW “under optimal conditions”).
The Long-Range model will have a 160kW (215hp) rear motor, and an additional 70kW (94hp) front motor if you get the AWD model. Performance AWD will be available with 160kW motors on both axles.
The long range RWD model will do 0-100km/h (0-62mph) in 9.4 seconds, AWD in 6.7 seconds, and Performance AWD in 5.2 seconds (or, if you prefer 0-60, the Performance model can do it in 4.9).
The vehicle is large, as you’d expect out of a 3-row SUV, at 5,060mm (199.2in) long, 1,980mm (78in) wide and 1,790mm (70.5in) high. This is 2 inches longer than its sister car the EV9, and 1 inch less long than the Rivian R1S.
Exterior design keeps some of the design language of the (excellent) Ioniq 5, but larger and more rounded-off. In particular, it keeps some of the dot-matrix/pixel aesthetic of the lights.
I have to say I don’t love the roundedness of it – the design of the Ioniq 5 feels extremely consistent with a lot of straight lines throughout, whereas the rounded hood and extended rear end of the 9 spoil that consistency to some extent (and speaking of the rear… it almost seems a little hearse-like, to me).
Incidentally, with the Ioniq 5 and EV6, one is more boxy and the other is more rounded – and the same thing has happened with the Ioniq 9 and EV9, only in reverse. The Ioniq 9 is more rounded and the EV9 is more boxy. So, once again, these two similar vehicles have differentiated themselves enough that we expect the market will be split, with many customers liking one and disliking the other, meaning little cannibalization between the two.
The interior seems incredibly spacious, though so far we haven’t had a chance to experience it ourselves. Most 3-row SUVs in this size class do have somewhat cramped third rows, so we’re curious if Hyundai has managed to do some sort of magic in that respect.
And in addition to rear and frunk storage (with a frunk capable of holding 88L in RWD and 52L in AWD models), the center console offers a large amount of storage inside (18.2L, split between an upper and lower tray), and can be slid back and forth to allow easier movement between front or rear seats.
And speaking of magic, Hyundai has actually done something new here – an interior with swiveling middle seats, to turn the car into a lounge.
We’ve seen similar interiors on countless concept cars, but understandably they never make it to production. It’s definitely an attention-grabbing feature, but who really uses their vehicles like that?
Well, Hyundai thinks that people will, so it’s offered swiveling 2nd-row seats to allow for this. However, it says that these seats will be available “in selected markets only,” and it has declined to say exactly which markets those are yet. We also imagine this will only apply to the 6-seat configuration, rather than 7-seat.
The seats don’t just swivel though, they also recline and have a leg rest. Hyundai is calling these its “Relaxation Seats,” and the first and second row seats will both be capable of this feat. It says this will be particularly useful for people who want to get comfortable during vehicle charging (though, on an optimal 350kW charger, 24 minutes is hardly much time for a nap).
And that charging will be accomplished via a NACS port – making this, we think, the first non-Tesla vehicle to debut and be sold with only a NACS port at any time in the model’s existence. Other E-GMP vehicles are switching over to NACS, but the Ioniq 5 for example has been out for many years now, so there are lots of CCS Ioniq 5s out there, but that won’t be the case for the Ioniq 9.
Like other E-GMP vehicles, it will be able to discharge the battery via vehicle-to-load (V2L) to power devices, though we didn’t get clarity on how much total output it will have. Other E-GMP cars usually top out around 1.8kW, so enough to run some regular outlets, but not enough to power a house.
The Hyundai Ioniq 9 will be available in Korea and the US in the first half of 2025, and then will come to Europe and other markets later. The US version will be built at Hyundai’s plant in Georgia – another example of a car brought to the US by the domestic sourcing provisions of President Biden’s EV push (and which could be put into Jeopardy if Dumb & Dumber get their way in attempting to kill this boon for US manufacturing).
We don’t have pricing or all tech specs yet, so stay tuned as there’s still more to come.
Also, you can watch the official debut livestream over at Hyundai’s website, starting at 9:10am PST November 21st. And Electrek will be at the LA Auto Show to ask around and see if we can get any lingering questions answered.
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Honda has been promising to unlock the power of all-solid-state EV batteries for several years. Today, we are getting our first look at the progress. Honda unveiled a demonstration production line as it continues to advance promising new battery technology.
By 2050, Honda wants all its products and corporate activities to be carbon neutral. Although electric vehicles are essential to this mission, Honda believes improvements are needed.
Since the battery is such a critical component for EVs, the company aims to unlock more driving range at a lower cost with new chemistries.
Honda is developing all-solid-state EV batteries in-house to power up its next-gen vehicles. It’s not “merely trying to establish a lab-level technology,” Honda is eyeing mass production in the coming years.
On Wednesday, Honda unveiled its demonstration production line for all-solid-state EV batteries, giving us our first look at the progress.
The line is located at Honda’s R&D facility in Sakura City, Tochigi Prefecture, Japan. Honda will use the demo line as a preface for mass production while determining the basic specifications of the battery cells.
Honda’s new facility where the all-solid-state EV battery demo production line is located (Source: Honda)
Honda is launching EVs with all-solid-state batteries
Honda plans to launch electric models with the new all-solid-state battery tech in the “second half of the 2020s.”
The new demo line replicates the processes required for mass production. It covers around 295,000 ft2 (27,400 m2) and is already equipped with the tools to verify each production process, including weighing and mixing electrode materials, coating, and roll pressing electrode assemblies. The line also supports the formation of cells and the assembly of the module.
After the new facility was completed this spring, all the equipment needed for verification is now in place.
Honda plans to begin production on the new demo line in January 2025. With a highly efficient production process and a wide range of use cases, including automobiles, motorcycles, and aircraft, Honda aims to slash battery costs.
To speed up development, Honda is conducting “speedy research” in two main areas: material specifications and manufacturing methods.
Ahead of its 2050 carbon neutrality target, Honda aims for 100% of global vehicle sales to be EV or FCEV by 2040. Honda believes the new battery tech will be its differentiator.
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