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The ocean was calm when the Peregrine Falcon ship left the harbor in Homer, Alaska, last month with three moorings resting on its deck, all loaded with scientific instruments.

Eighteen hours later, these moorings were lowered into the silty waves where they collected data for two months. Two of the moorings were 12-foot submarine-shaped buoys that floated 60 feet below the inlet’s surface, and the third rested on the sea floor; all three gathered data on the velocity, turbulence, and sediments at the nation’s top-ranked tidal energy site.

A highly energetic corner of the Pacific Ocean, Cook Inlet holds one of the greatest tidal resources on Earth. All that energy has the potential to reduce Alaska residents’ dependence on declining oil and gas production and provide excess renewable energy that could stimulate the Alaskan economy. That is why researchers from the National Renewable Energy Laboratory (NREL) submerged their moorings in Cook Inlet; the data they collected will help identify important details of the opportunities and challenges that come with turning these surging waters into a reliable and renewable power source for Alaskans living on the nearby shore.

But that is no easy feat.

“Models and local knowledge tell us the currents here are extremely strong. There is silt and sea ice in the winter. We expect the turbulence to be intense,” said Levi Kilcher, an NREL senior scientist who leads ocean energy resource assessments like this one.

NREL researchers and crew prepared to deploy three moorings in Cook Inlet, Alaska, in July to collect data for a potential tidal energy site. From left to right: Chris Higgins (Peregrine Falcon), Patrick Verity (Peregrine Falcon), Brian Hunt (TerraSond Limited), Frank Spada (Integral Consulting), Levi Kilcher (NREL), Andrew Smith (TerraSond Limited), Gwen Sovitski, Olivia Cormier (TerraSond Limited), Jeff Johnson (Peregrine Falcon). Photo courtesy of Christopher Pike

Capturing Energy From the Ebb and Flow

Just as wind turbines extract energy from moving air, underwater turbines can create energy from the ebb and flow of the tides. Tidal energy has the potential to provide more than 220 terawatt-hours per year of clean, renewable energy in the United States, which is enough to power 21 million homes. Tidal technologies are promising, with new demonstration projects showing the world that they can operate reliably and efficiently. And yet, it is still an early-stage industry when compared to wind and solar. As of September 2020, only three tidal turbines were operating in the United States.

“So much of our work builds on NREL’s background in wind power,” Kilcher said. “It took time to understand the importance of accounting for turbulence in wind turbine designs. We’re learning from that and getting ahead of the turbulence questions now by making these measurements. But in the ocean, there are so many additional environmental challenges: We’ve also got to deal with sea ice, sediment, marine growth — not to mention the corrosive properties of the salt water itself. So, we’re trying to understand the details of these environmental challenges as well.”

For the Cook Inlet study, Kilcher led a multilaboratory team that included researchers from Pacific Northwest National Laboratory and Sandia National Laboratories. The team also contracted help from TerraSond LimitedOcean Renewable Power Company, and Integral Consulting. NREL has performed similar studies in Puget Sound, Washington, and off the coast of Maine, but the Alaskan environment poses unique challenges: currents that are stronger, sea ice in winter, and sediments that wash into the inlet from the glaciers dotting the nearby mountains. The turbulence stirs up sand and silt from the inlet floor, creating frothy, gray water at the surface and a slurry of sand and gravel at the bottom.

“The strong currents at the site create sand dunes on the sea floor that are 30 feet tall. Instruments have been lost at this site, most likely buried in sand,” Kilcher said. “We’ve used midwater moorings and inflatable chambers in the Tidal Bottom Lander to ensure we get this stuff back.”

Frank Spada (Integral Consulting, left) and Andrew Smith (TerraSond Limited) hold the buoy steady while Patrick Verity (Peregrine Falcon) unshackles it for a ballast test in the Homer harbor, Alaska. Photo courtesy of Christopher Pike

It is an environment Kilcher knows well. He grew up in Homer, a small fishing town on Cook Inlet where he played on the beach of these icy waters, practiced subsistence fishing, and later worked as a deckhand for his father’s freight business. He earned a Ph.D. in oceanography with a focus on ocean turbulence from Oregon State University. Ten years ago, he brought his expertise to NREL’s Water Power team to help design tidal power systems that could, one day, power his hometown.

“I’ve always been attracted to problems that seem unsolvable. Turbulence is one of those problems, and tidal energy has sometimes felt like one too, but the industry is starting to see real success,” Kilcher said.

Now, to help in the effort, Kilcher and his team are gathering some of the information needed to start designing projects in Cook Inlet. In addition to turbulence, researchers are measuring the water’s velocity, salinity, temperature, and the sediment composition and concentration. With that data, they will validate and refine models to paint a much more detailed picture of the site, including how much energy could be generated there and how to build tidal turbines that can withstand the elements.

The detailed understanding of the Cook Inlet tidal energy resource that stems from this project will allow the industry to design tidal turbines that perform reliably for decades in the harsh Cook Inlet environment. Ultimately, this work could also help design turbine arrays that maximize power production while minimizing impacts to marine life and the inlet’s ecosystems.

Transforming Alaska’s Economy With Clean, Affordable, Local Energy

Having access to clean, affordable energy would transform the Alaskan economy, which is currently facing a deep economic recession due to decreased oil and gas production and high energy prices. Alaskan residents depend on oil and gas not just for jobs and state revenue but also for heating and power. Because of their extreme climate, remote location, and lack of infrastructure, they spend twice as much on energy as the average American; many communities pay three times more, according to the Cold Climate Housing Research Center’s 2018 Alaska Housing Assessment.

The Cook Inlet site is estimated to hold as much as 18 gigawatts of tidal energy potential — more than 20 times the amount used by all the road-connected communities of Alaska.

“It’s a huge amount of power that we have access to at our doorstep,” said Chris Rose, executive director of the Renewable Energy Alaska Project, a nonprofit that advances clean energy solutions for Alaska. “The economic and environmental benefits would be immense.”

With affordable energy, local industries could process the raw materials harvested in Alaska, such as wood, minerals, and fish, rather than exporting them to places with cheaper energy prices. Communities could switch from diesel to electric power for transportation and heating. With surplus electricity, companies could even start making hydrogen as a fuel with which to export the state’s vast renewable energy resources.

Tidal power technologies are at a critical stage of development; U.S. and European companies have had increasing success in single-device demonstration projects and are now planning pilot-project arrays that demonstrate long-term reliability and scalability. Cook Inlet’s strong currents and harsh environment are ideal for demonstrating technology robustness. Given these successes, NREL engineers believe tidal technologies could make significant contributions to Alaska’s energy demand in the next decade. This would help transform and revitalize the Alaskan economy and would be a significant contribution to help meet the marine energy industry’s goal of 1 gigawatt of marine energy plants deployed by 2035.

“It’s kind of like saying to the people in Arizona 40 years ago that if solar power ever gets really cheap, we’ll have a bonanza here. Guess what? It happened.” In other words, Rose said, “the time to start investing in tidal energy is now.”

Out in Cook Inlet on the Peregrine Falcon, Kilcher deployed and successfully recovered three moorings to gather the data needed to engineer the next generation of tidal devices. When he returned to the harbor, the sun shone over the snow-covered mountains, and Kilcher looked for the humpback whales the team saw the day before. He thought about the precious data they had just collected and the device engineering it will facilitate. And he thought about the childhood dream that grew from these same waters.

I firmly believe we can find a cleaner future that’s carbon neutral — carbon negative even,” Kilcher said. “I’ve been working for 10 years to make marine energy a part of that solution.”

Find more information on NREL’s resource characterization work.

Article courtesy of National Renewable Energy Laboratory (NREL).

 

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Kia opens EV4 orders in Korea with +330 miles range and it starts at under $30,000

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Kia opens EV4 orders in Korea with +330 miles range and it starts at under ,000

Kia’s first electric sedan, the EV4, has officially hit the market. Kia opened EV4 orders at under $30,000 (41.92 million won) in South Korea ahead of its global rollout. It even has the longest driving range of any Hyundai Motor Group EV rated with over 330 miles (533 km).

Kia EV4 orders open in Korea for under $30,000

Since debuting as a concept in October 2023, Kia’s EV4 has become one of the most highly anticipated electric vehicles.

Last month, we got our first look at the production model during Kia’s 2024 EV Day (check out our recap of the event). Kia showcased four EV4 models, two sedans and two hatchbacks.

The EV4 is part of Kia’s new “EVs for all” strategy with prices ranging from around $30,000 to upwards of $80,000. After launching the EV5 and EV3, both electric SUVs, Kia aims to corner another segment with the EV4.

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Kia opened EV4 orders in Korea on Monday, starting at just 41.92 million won, or around USD $29,000. With incentives, Kia expects the actual purchase price to be around 34 million won, or roughly $23,500.

Kia-EV4-orders-Korea
Kia EV4 sedan (Source: Hyundai Motor)

Powered by a 58.3 kWh battery, the standard “Air” model is rated with up to 237 miles (382 km) driving range. The long-range EV4, starting at 46.29 million won ($31,800), gets up to 331 miles (533 km) range from an 81.4 kWh battery, the most of among Hyundai Motor Group EVs.

As Kia’s most aerodynamic vehicle yet, the EV4 has ultra low drag coefficient of just 0.23, which unlocks maximum driving range.

Trim Starting Price
Kia EV4 Standard Air 41.92 million won ($28,900)
Kia EV4 Standard Earth 46.69 million won ($32,000)
Kia EV4 Standard GT-Line 47.83 million won ($32,900)
Kia EV4 Long Range Air 46.29 million won ($31,800)
Kia EV4 Long Range Earth 51.04 million won ($35,000)
Kia EV4 Long Range GT-Line 51.04 million won ($35,900)

With a 350 kW charger, the long range EV4 can charge from 10% to 80% in around 31 minutes, while it will take about 29 with the standard model.

The EV4 is Kia’s fourth EV to arrive in Korea, following the EV6, EV9, and EV3. As its first EV in the segment, Kia claims it will “set a new standard for electric sedans.”

Kia-EV4-orders-Korea
Kia EV4 sedan (Source: Hyundai Motor)

As you can see, the EV4 has a unique sports car-like silhouette with an added roof spoiler, which Kia says is “the new look of a sedan fit for the era of electrification.”

Inside, the electric sedan is loaded with the latest software and connectivity. Kia’s new ccNC infotainment system, with dual 12.3″ driver display and navigation screens, sits at the center of an otherwise minimalistic setup.

Kia-EV4-orders-Korea
Kia EV4 sedan interior (Source: Hyundai Motor)

For the first time, it also includes a new “interior mode, “enabling you to easily change the seating and lights to maximize interior space.

Kia’s vice president and head of its domestic business, Won-Jeong Jeong, said the EV4 “will present a new direction in the domestic electric vehicle market, which has been formed around SUVs.”

Will it have the same “charm” in the US, Europe, and other markets? We will find out soon, with the EV4 rolling out globally this year. What do you think of Kia’s first electric sedan? Would you buy one for around $30,000?

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Segway’s new Ninebot Max G3 scooter brings more speed, more tech, and more everything

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Segway’s new Ninebot Max G3 scooter brings more speed, more tech, and more everything

If you’ve ever thought, “Man, I wish my scooter was faster, smoother, and had more underglow,” then Segway has been reading your mind. The company just opened pre-orders for its new Ninebot Max G3, the latest in its Max series, and it’s packing more features than ever before.

The scooter brand has long pitched Segway’s Max series as a go-to for riders who want a solid commuter scooter that doesn’t break the bank while still offering decent range and comfort. But now, Segway seems to have cranked things up to eleven—or at least up to 28 mph (45 km/h), which is a nice jump in speed compared to the previous Max G2’s 22 mph (35 km/h) top speed.

That extra speed comes courtesy of a 2,000-watt motor, giving the G3 a 0-15 mph (25 km/h) sprint of just 2.4 seconds. Not bad for a standing scooter.

And with 50 miles (80 km) of range, Segway claims its efficiency optimization, which they call SegRange, squeezes even more miles out of each charge. If you manage to drain the 597 Wh battery in a day, you can top up in just 3.5 hours (or 2.5 hours with an optional faster charger).

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Hitting those higher speeds means stability is more important than ever, and Segway seems to be addressing that with dual hydraulic suspension on both ends, plus what they’re calling the SegRide stability enhancement system.

Fancy marketing names are one thing, but what really matters is how well this setup absorbs bumps and keeps the scooter planted at higher speeds. If it delivers, it could make for one of the smoothest rides in the category.

Traction and braking also get an upgrade, with Segway Dynamic Traction Control helping riders maintain grip and dual-piston disc brakes front and rear ensuring you can actually stop when needed. Segway has even thrown in an anti-lock braking system for a more controlled stop – something usually only seen on scooters and motorcycles. Bosch and BluBrake have both brought ABS to e-bikes, but it is quite rare in the standing electric scooter world.

Segway has been adding more tech to its scooters each year, and the Max G3 is no exception. The new 2.4-inch TFT smart display offers turn-by-turn navigation, real-time ride stats, and even notifications for incoming calls.

It also comes with AirLock autonomous unlocking, which means you can use your phone to lock and unlock it without fumbling with a key. If you’re worried about losing it, it’s Apple Find My compatible, so you can track it down when someone inevitably “borrows” it without asking.

Lighting is another area where Segway went all out. The Max G3 features a 360-degree lighting system, including an automatic headlight that’s three times brighter, underglow lighting, and turn signals that sync with that underglow lighting. Because what’s the point of having a fast, high-tech scooter if it doesn’t glow like a Fast and Furious car while you ride?

The Segway Ninebot Max G3 seems ready to take a stab at competing in the premium commuter scooter space, with performance upgrades that should make it a blast to ride while keeping it safe and comfortable. At $899.99 for the pre-order price before it jumps to $1,399.99, it could be a steal for anyone looking to upgrade their ride without venturing into ultra-premium pricing.

If you’re ready to jump on one, pre-orders are open through March 24 with promotional pricing. Deliveries are expected to begin around the end of March.

What do you think? Should we try to get our hands on one for a test ride when they roll out? Let us know in the comments section below.

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The legend of the ‘Tesla killer’ finally came true, and it’s Elon Musk

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The legend of the 'Tesla killer' finally came true, and it's Elon Musk

The legend of the ‘Tesla killer’ is not a myth anymore. It came true, and it’s not an electric vehicle from a legacy automaker or a new EV startup; it’s Elon Musk, Tesla’s CEO.

In the early days of Tesla, the media loved to use the term ‘Tesla killer’ every time a legacy automaker launched a new EV.

At the time, we scolded them for using it, as they would apply it to electric vehicles that didn’t match Tesla’s performance, production volumes, or profitability.

Sure enough, none of them came even close to negatively affecting Tesla, let alone “killing” the company.

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But things are changing now. Tesla is not growing at an insane pace like it was for a decade. In fact, it’s not growing at all anymore. Tesla’s global sales declined annually for the first time in 2024, and it is starting even worse in 2025.

It is undisputable that the increased EV competition is having an impact, but there isn’t a single EV model that can be deemed a “Tesla killer”—even though we do see a couple of Chinese EVs as having quite an impact on Tesla.

Most Tesla fans, myself included, thought that while Tesla’s market shares would go down amid more EV competition, its sales would continue to grow as EV adoption takes over the industry. That’s exactly what happened for a few years, but the trend reversed in 2024, and it’s not because of EV adoption.

Global EV sales surged by 25% in 2024, while the sales of the biggest EV automaker, Tesla, declined by 1%.

There are many reasons to explain this situation, but there’s one main culprit: Elon Musk.

Musk has been completely delusional about Tesla achieving self-driving capability for years, which led him to neglect the rest of Tesla’s automotive business as he thought that by the end of every year for the last 6 years, Tesla would be able to flip a switch and make all its vehicles self-driving – automatically increasing their value and making them infinitely more competitive than other vehicles.

How did Musk neglect Tesla’s automotive business?

The clearest example is the fact that Tesla launched a single new vehicle in the last 5 years: the Cybertruck, which proved to be a total flop.

Tesla Cybertruck

The Cybertruck launched in 2023 at a much higher price and significantly shorter range than what was promised when unveiled in 2019. With a reservation backlog at over 1 million units, Musk said that he could see Tesla eventually selling 500,000 units a year and Tesla planned for an initial production capacity of 250,000 units a year.

Now, a year and a half into production, Tesla is having issues selling the Cybertruck at 10% of its planned production capacity installed at Gigafactory Texas.

Musk also canceled Tesla’s plan to build a “~$25,000 electric car”, which would have greatly fueled demand and allowed Tesla to grow its delivery volumes. The CEO didn’t believe that the vehicle program would make sense if Tesla solved autonomy. He said in October 2024:

“I think having a regular $25,000 model is pointless. It would be silly. It would be completely at odds with what we believe.”

What Musk, and by extension Tesla, believes is that the automaker is on the verge of solving self-driving, but he has thought that to be the case every year for the last 6 years.

There’s no evidence that it is now on the verge of happening, or at least, not on the hardware that Tesla has delivered so far.

It’s clear that this crucial mistake about the timeline of self-driving has led Musk to make many mistakes about how to manage Tesla in the last few years.

For example, Tesla’s decision to remove turn signals and gear shift stalks from vehicles started with Model S and Model X in 2021. The CEO saw them as superfluous in a self-driving world, which he thought was imminent. Now, Model S and Model X sales have crashed.

Tesla brought the same design to the Model 3 with the refresh last year. Seeing the mistake years later, Tesla decided to keep the turn signal stalk with the Model Y refresh this year, and the stalk is rumored to make a comeback on the Model 3.

Perhaps the biggest mistake Musk has made about self-driving is promising that “all Tesla vehicles built since 2016 have the hardware capable of self-driving” to a level that would enable a robotaxi service, which in SAE self-driving terms would mean level 4-5.

Musk himself has already admitted that Tesla has been wrong about that twice: the automaker had to upgrade Tesla owners having the “2.5 Autopilot computer” to the “3.0 self-driving computer”, which Musk recently admitted will also not be able to get Tesla to self-driving capabilities.

Tesla Full Self-driving computer

He said that Tesla would “painfully” replace the computers in all vehicles of owners who purchased the “Full Self-Driving” (FSD) software package. However, we noted that Tesla is likely in more trouble than that since it promised that “all Tesla vehicles built since 2016 have the hardware capable of self-driving” – not just those whose owners bought the FDS package. Considering this greatly affects the resale value of those vehicles, you can make the argument that there are millions of Tesla owners out there who are owed a retrofit or compensation for Tesla’s mistake.

This is a current liability at Tesla worth billions of dollars, and there are already examples of lawsuits about this issue.

These are all management mistakes that ultimately fall on Elon Musk, Tesla’s CEO.

Then, there are plenty of mistakes that Musk has made outside of Tesla that is affecting the company. The hard turn to the right, buying Twitter, boosting misinformation and Russian propaganda on the platform, financially backing Donald Trump, joining the administration and slashing critical government program indiscriminately.

Regardless of if you agree or not with Musk’s politics, these are things that you simply shouldn’t do as the face of a major consumer product company as you will undoubtedly anger a large part of your consumer base.

That’s exactly what’s happening.

There are now weekly demonstrations at Tesla stores around the world, and sales are crashing in many markets, especially in those where Musk got politically involved, like Germany, where Tesla sales are down 70% so far this year.

Musk is virtually erasing two decades of hard work to build Tesla’s brand into the world’s leading when it comes to electrification and renewable energy.

Now, for a large part of the population, Tesla is just seen as the piggybank of an out-of-touch oligarch.

Tesla is not dead yet, but if Musk continues to be the face of the company, it looks like it’s certainly going in that direction as this brand issue and declining demand is not going away.

Some of his fans cling to the idea that the automaker is about to solve self-driving, but this belief is largely based on Musk’s claims, which have been consistently wrong.

Now, it’s not to say that Tesla hasn’t made great progress on that front, but if we are to listen to the company’s own goal to be safer than humans, it means achieving “miles between critical disengagement” equivalent to human miles between collisions, which is 700,000 miles, according to NHTSA.

The latest available crowdsource data, a dataset that Musk has positively referred to twice lately, shows that Tesla is currently at about 500 miles between critical disengagement.

Electrek’s Take

While Tesla might not die under Musk, I sincerely think that, at best, it will be a fraction of what it was at its peak, which means no bigger than it is now or in 2023.

Musk’s brand is toxic and doesn’t look to be improving significantly now that he has attached himself to identity politics, culture wars, and Trump.

Looking at Tesla fans and shareholders who still support him, their main hope appears to be self-driving and robots. On the self-driving front, I think it’s delusional to believe that Tesla will solve self-driving on its current hardware.

I think it has made some great progress, which may result in Tesla achieving valuable levels of self-driving on next-generation hardware in the next few years. However, others are on the same path, and you have to balance Tesla’s effort against the giant liability it created for itself by promising it on millions of other vehicles.

As for the robots, I’m actually somewhat bullish on humanoid robots, and I do believe that Tesla has some competitive advantage on that front. However, it’s foolish to think they will simply leapfrog the competition, which is significant in the sector.

Tesla’s core business remains selling cars and batteries. There’s no doubt that the business of selling cars is not going well for Tesla right now, and under Musk, there’s no clear path to improvement. The energy business is booming, but margins are falling, and competition is increasing—especially from companies like CATL and BYD, which supply the cells that Tesla uses for its stationary batteries.

On the car side, Tesla is indeed planning to launch cheaper cars this year, but that plan was a pivot after Musk canceled the “$25,000 Tesla.” These new vehicles are expected to be built on the same platform as Model 3 and Model Y, so they will be closer to these models and cannibalize them.

I’d be surprised if they are enough to avoid Telsa from having its annual deliveries decline again this year.

I have been saying this for a while, but it’s time for Elon to go.

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