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Oh, those pesky wind turbines, running around the countryside cluttering up the landfills with their big old unrecyclable blades. That’s the picture drawn by critics, but not for long. A new scheme is afoot that takes the old blades from a wind turbine and recycles them into new energy storage systems for wind and solar power.

What To Do With Those Pesky Old Wind Turbine Blades

Actually, the wind turbine recycling issue is a bit of a red herring. After all, the fossil energy industry has squeezed who knows how many trillions of tons of raw resources out of the ground, to be used once and never to be replaced, reclaimed, recycled, or reused again, let alone upcycled, unless you count their contribution to global carbon load as a kind of recycling, which is a bit of a stretch.

Nevertheless, the global wind industry is coming of age in an era when public policy and consumer demand are beginning to steer the global economy into a more sustainable, circular form. That pushes wind turbine blade recycling into priority status.

Wind Turbine Blades & The Circular Economy

The typical wind turbine blade lasts about 20 years, which means that a flood of spent blades is about to hit the global market.

Wouldn’t you know it, the US Department of Energy is right on top of the circular economy thing. Last month the agency’s Wind Energy Technologies office ran down some of the wind turbine blade recycling solutions bubbling up through the R&D pipeline and noted that the most effective strategy would be to design recycling and reuse into materials, components, and systems from the very beginning.

“A circular economy for energy materials also means that technology should be engineered from the start to require fewer materials, resources, and energy while lasting longer and having components that can easily be broken down for use in subsequent applications,” the Energy Department explained, citing a new lightening-resistant and erosion-resistant blade coatings developed by the firms Arctura and Resodyn Corp.

In partnership with the firm Arkema, Inc., the National Renewable Energy Laboratory has also been hammering away at a new resin-based turbine blade material that can be reduced to a liquid and reformed into new blades and other items, while reducing  labor and energy inputs.

Better Ways To Recycle Old Blades

That’s all well and good for future generations of wind turbine blades, but what about those in operation now?

Yes, what about them? Fiberglass can be recovered from spent blades, but the range of application is limited because recycled fiberglass tends to lose quality.

The Energy Department has an answer for that, too. They are especially excited about a research partnership between the University of Tennessee and the firm Carbon Rivers, which involves a heat-based method for reclaiming fiberglass from wind turbines and recycling it into a high-value material for various industries including aerospace.

Extending the useful lifespan of old wind turbine blades is also part of the Energy Department’s strategy, including the use of drones and other advanced systems for monitoring, maintenance, and repair.

Hey, What About Recycling Wind Turbine Blades For Energy Storage?

Into this picture steps the Swiss energy storage firm Energy Vault, which has crossed the CleanTechnica radar previously on account of its gravity-based energy storage system.

The Energy Vault concept is similar to pumped hydro energy storage. Instead of storing electricity in a lithium-ion battery or other chemical systems, you deploy excess wind or solar power to raise something heavy upwards. When demand for electricity rises, gravity does all the heavy lifting. You allow your heavy thing — water, or in Energy Vault’s case, 35-ton blocks — to fall back to its starting point, and it generates electricity on the way down.

Pumped hydro is not a new technology, and here in the US it still dominates the energy storage field. Its advantages over battery-type systems include holding massive amounts of energy for long periods of time.

The problem is location, location, location. The Energy Department has been working on new pumped hydro technology that could enable the nation to grow the domestic industry, but for now there are few prospects for constructing new pumped hydro reservoirs in the US.

Energy Vault’s block-type gravity system could help resolve the location issue, since it does not require massive new infrastructure and copious amounts of water. All it really needs is 35-ton blocks, and those could be made from just about anything, including wind turbine blades.

Let The Wind Power – Energy Storage Mashup Begin

And, that’s where the company Enel Green Power comes in. The company, which comes under the Enel Group umbrella, has been aiming to hitch its renewable energy activities to new forms of energy storage, and it is very excited about the potential for Energy Vault to provide a home for spent wind turbine blades.

“The benefits of this solution are the same as those of a pumped storage hydro plant, but at a much lower cost, with greater possibility of being replicated in any geographical context and greater efficiency: the Energy Vault technology can even exceed an efficiency level of 80%,” EGP enthuses.

“Moreover, there are clear benefits compared to batteries: a plant of this type is not exposed to storage medium degradation (no need for augmentation over time), risk of fire, has a long lifespan of 30-35 years and its eventual dismantling will not pose particular difficulties, as the blocks are composed of inert materials and are created directly on site,” EGP adds.

Energy Vault already has a 5-megawatt demonstration facility under its belt, and it recently introduced its new “EVx” configuration that requires 40% less height than its former design. Last week the company signed an agreement with EGP to study the feasibility of a system that weighs in at “a few dozen megawatt-hours,” using material from spent wind turbine blades to form the blocks.

EGP anticipates that the study will greenlight the construction plan for a new Energy Vault project, deploying the new EVx design, in the coming year.

So, What About The Birds?

Yes, what about them? Years before the recycling issue popped up, wind power critics (looking at you, fossil energy lobby) were accusing wind turbines of causing birds to die, conveniently overlooking the fact that wind turbines are a relatively small part of a huge problem.

Practically everything that people make causes birds to die, and the worst offenders by far are buildings, overhead power lines, agricultural chemicals, and various devices used legally for hunting, among other things. For that matter, domestic cats — oh, but why beat a dead horse?

The point is that everything is killing birds. The counterfactual focus on wind turbines began about a dozen years ago and it was picked up and promoted by former President Trump, who promoted the wind turbine canard to help propel himself into office the first time.

It didn’t work the second time, which is good news for the birds, because Trump’s first and only administration spent considerable time and energy on tearing the guts out of a treaty aimed at preventing migratory bird deaths related to fossil energy activities among various other circumstances.

Oh well, water under the bridge. Migratory birds are all but certain to get a share of President Joe Biden’s love for all things sustainable, and new strategies have already emerged for reducing wind power’s relatively small share of bird impacts.

Back in 2003, for example, researchers at the National Renewable Energy Laboratory suggested that simply applying different colors and patterns to wind turbine blades could make a difference. That formed the basis for a long term study that recently demonstrated a significant reduction in risk of collision, especially for raptors.

The US Fish And Wildlife Service’s Avian Radar Project indicates that adjustments to wind turbine locations, hours of operation, and lighting can also reduce risks. Automatic shutdown systems triggered by cameras and other remote devices can help, and researchers are beginning to study how today’s generation of larger, more powerful turbines is also contributing to risk reduction.

Follow me on Twitter @TinaMCasey.

Photo: Energy Vault gravity storage system via Enel Green Power.


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Watch what happens when an electric hydrofoil boat hits big chop & waves

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Watch what happens when an electric hydrofoil boat hits big chop & waves

The Candela P-12 is the first hydrofoil electric ferry in the world to begin commercial operations. The 30-seat electric ferry uses a set of computer-controlled hydrofoil wings to fly above the surface of the water, resulting in a smoother and more efficient ride. But what happens when the seas get rough?

Most of the time, we see slickly edited marketing videos of hydrofoil electric boats smoothly soaring above relatively calm water. It’s an awesome visual, watching the blade-like struts that support the boat’s hydrofoils leave mere ripples on the glassy surface of the water. But it also begs the question, “What happens on anything other than a calm sailing day?”

In a recently shared video, we get a chance to see exactly what it looks like when one of those boats encounters significantly less friendly water in the Baltic Sea.

You know, the kind that would make stomachs like mine offer a refund on their lunch.

A Candela P-12 electric ferry operating in Nynäshamn, Sweden was recently filmed operating in 50 km/h (31 mph) wind that whipped up the choppy water and resulted in swells as high as 2 meters (6.5 feet).

A film team on the accompanying RIB (rigid inflatable boat) could be seen getting bounced around while the Candela P-12 ferry maintained its smooth flight over the chop and swells.

“It was such a smooth ride,” remarked one of the passengers on the ferry. “It’s actually quite nice because before we started foiling, you could really feel the waves. And then once we started going up on the foils it all disappears. And then I looked out and I can see the rib was just bouncing up and down meanwhile inside of our boat it’s smooth. It’s quite a unique experience.”

This electric ferry, named NOVA, has been operating since late 2024 when it took its maiden voyage on a route from Tappström in Sweden. There it reached its destination at Stockholm City Hall, a distance of around 15 km (9 mile), in just 30 minutes. That’s around half the time it normally takes to cover the same route by car or public transit.

Electric ferries like these are now enabling much quicker and more cost-effective commutes in areas with convenient waterways, helping to reduce both emissions and travel time for the public. With fast charging capabilities, the boats can quickly recharge while at each harbor, ensuring all-day operations. With the use of hydrofoils compared to traditional displacement ferries, the boats use significantly less energy and result in a much more comfortable ride for passengers.

Having personally piloted multiple Candela hydrofoil boats myself, I can attest firsthand to the impressive performance.

While on a trip to Stockholm, the company let me get an early test ride and take out their C-8 electric speedboat while it was still in its final stages of production. It didn’t have all of its luxury gear installed yet, but the flight system was working in true form, allowing me to slice across the wake left by cruise ships coming into port.

You can check out that experience in my video below.

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Trump just canceled the federal NEVI EV charger program

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Trump just canceled the federal NEVI EV charger program

Trump’s Federal Highway Administration (FHWA) has issued a memo ordering states to suspend all state EV infrastructure deployment plans under the National Electric Vehicle Infrastructure (NEVI) Formula Program.

Trump’s FHWA orders NEVI suspension

The $5 billion NEVI program is the big rollout of EV charging infrastructure across the US that was funded by the Biden administration’s Infrastructure Act, and it’s already well underway.

Under the NEVI program, states have to send their plans to the FHWA annually, detailing how they’ll use the funds. During the Biden administration, the FHWA signed off on the first four out of five fiscal years of plans through 2025. However, not all of it has been “obligated” to EV infrastructure projects.

Trump’s FHWA has told states in this memo that they can’t commit funds that were already approved to new EV charging infrastructure. However, money that was already committed is not affected. 

The memo reads:

Therefore, effective immediately, no new obligations may occur under the NEVI Formula Program until the updated final NEVI Formula Program Guidance is issued and new State plans are submitted and approved. Instructions for the submission of new State plans for all fiscal years will be included in the updated final NEVI Formula Program Guidance. Since FHWA is suspending the existing State plans, States will be held harmless for not implementing their existing plans. Until new guidance is issued, reimbursement of existing obligations will be allowed in order to not disrupt current financial commitments.

Electrek’s Take

I asked Loren McDonald, chief analyst at Paren, what his thoughts were on this latest cancellation, and he, among others (myself included), doesn’t think the FHWA has the authority to stop the NEVI program with a memo – it would need a change in law from Congress – and then the courts will settle it. (Who else is beginning to see a Trump administration theme here?) McDonald said:

 I don’t believe FHWA has the authority to pause or rescind any aspect of NEVI. The Trump administration is clearly trying to stop or pause programs like NEVI for as long as they can, but I assume lawsuits from states will start soon, and this will go to court and Congress … but the Trump admin will succeed in just causing havoc and slowing things down for a while. In the end, the Trump administration will likely fail, as only Congress can fundamentally revise and stop the NEVI program.

But, as with everything else rolled back the last few weeks, this will cause chaos and delays. This will cause serious damage to businesses nationwide – from EV charging companies (including Tesla, one of the largest NEVI recipients) to convenience stores and other host sites – and will waste money and cost people jobs.

It should also be noted that NEVI is the very reason that the NACS charging standard exists in the first place.

NEVI was limited only to chargers that could serve multiple makes of vehicles – a reasonable step, that government wouldn’t want to do a giveaway to a single, proprietary company. This is what caused Tesla to release NACS as a standard in the first place, so that its chargers could access NEVI money.

Then, when the entire industry switched over to the NACS standard, that signaled a potential long period of leadership in EV charging for Tesla. The company could have been the primary energy provider for EVs in North America for years or even decades to come as a result.

Now, an administration that Elon Musk is involved in is killing the very program that could have led to his company’s dominance in energy delivery – after also firing the entire team that was responsible for making the NACS standard in the first place.

What an awesome way to make America great again.

Read more: Q4 2024 update: 12,000 more US EV charging ports in 3 months


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There’s finally(!) an automatic fix to restart failed EV charging sessions

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There's finally(!) an automatic fix to restart failed EV charging sessions

The ChargeX Consortium has figured out how to automatically restart failed EV charging sessions at fast chargers so drivers don’t have to.

Every EV driver has been there. You plug in, walk away to grab food or run errands, and expect your battery to be juicing up at a DC fast charger, only to return and realize nothing happened. Maybe the session failed, or maybe the charger glitched. Either way, you’re stuck unplugging, plugging back in, and now it’s going to take twice as long to charge.

The ChargeX Consortium (National Charging Experience Consortium), which is made up of researchers from the National Renewable Energy Laboratory (NREL), Idaho National Laboratory (INL), and Argonne National Laboratory (ANL), along with industry stakeholders, has come up with a smart fix for one of the most frustrating parts of public EV charging: failed sessions.

Its new report highlights the benefits of what it calls “seamless retry” – a hands-free tech solution that automatically restarts failed charging attempts. In other words, the driver no longer needs to physically unplug and replug the charging connector when a charging session fails.

The consortium’s new tech is designed specifically for DC fast charging. The “novel mechanism” automatically resets both the EV and the charger, then restarts the session in the background, so drivers don’t have to return to the car – or even have to think about it.

Ed Watt, a researcher at NREL and lead author of the “Recommended Practice Seamless Retry for Electric Vehicle Charging” report, said, “With a seamless retry mechanism in place, an EV driver at a retail center can plug in a charging connector, provide user input data, leave to shop, and feel confident that they will return to a charged vehicle.” (Click on the report link to see the specifics of how the novel mechanism works.)

The researchers didn’t just focus on the perks of seamless retry – they also looked at potential downsides. One concern was the extra time it might take for the system to restart a failed session, which could leave drivers frustrated. To tackle that, the consortium suggests that the EV industry provide transparency in the form of real-time status updates, insights into what went wrong, and recommendations based on the type of charging failure and number of attempts made.

Going forward, as the user experience becomes clearer, more work will fine-tune seamless retry. The ChargeX Consortium will keep refining the system – developing smarter, more targeted retry methods, ironing out implementation details, and running verification tests to make sure everything works seamlessly in the real world.

Read more: The latest US EV sales and charger growth – in numbers


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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisers to help you every step of the way. Get started here. –trusted affiliate link*

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