NREL Inventiveness Sets New Record for Patent Activity
For Greg Glatzmaier, the road between innovation and implementation runs along a dusty stretch of highway about a dozen miles south of Boulder City, Nevada, where his patented idea could solve an industry problem. The destination for his idea is Nevada Solar One, an outpost in the desert where 186,000 parabolic shaped mirrors tilt to capture the sun’s rays.
Greg Glatzmaier tests the high-temperature thermal/mechanical stability of sealants that are being used in equipment installed at the Nevada Solar One power plant. The process reduces trace levels of hydrogen in the power plant and maintains its original design efficiency and power production. Photo by Dennis Schroeder, NREL
“When the plant first opened, there was nothing around it but open desert with mountains to the west and east,” said Glatzmaier, a senior engineer in the Thermal Energy Science and Technologies group at the National Renewable Energy Laboratory (NREL). “The only other landscape feature is a dry lakebed north of the plant.”
Since Nevada Solar One began operations in the summer of 2007, other utility-scale solar power plants have opened in that lakebed. Nevada Solar One is the only concentrating solar power (CSP) plant in the region, however, and the technology faces a unique set of challenges.
The CSP facility uses concentrated beams of sunlight to heat a fluid flowing through 20,000 tubes to as high as 752 degrees Fahrenheit. The process creates steam to spin a turbine that powers a generator and produces electricity. Over time, however, the heat transfer fluid begins to break down and form hydrogen, which reduces the effectiveness of the process. Tiny metal pellets in the tubes absorb the hydrogen, but after about seven years they become saturated and cannot be removed and replaced. Glatzmaier developed a method to address the hydrogen problem.
“To try to go in individually and address the situation for each tube is not really practical,” Glatzmaier said. “So, the method that I’ve developed, and what’s in that patent, and what this project has been all about, is to reduce and control the level of hydrogen that’s in the heat transfer fluid.”
NREL applied for a patent on Glatzmaier’s invention in the fall of 2017. The U.S. Patent and Trademark Office last May granted patent protection to what is simply called “Hydrogen sensing and separation.”
Laboratory Filed 188 Patent Applications
Glatzmaier’s patent was merely one of the 40 U.S. patents issued to NREL during fiscal 2020, a bump from the 32 issued during the prior fiscal year. Of the 269 disclosures filed with the laboratory’s Technology Transfer Office as the first step toward either patent or copyright protection, 153 fell in the category of a record of invention and 116 in the area of software.
“We continue to see strong engagement from researchers who submit their ideas for evaluation, with especially strong growth in software,” said Anne Miller, director of NREL’s Technology Transfer Office. “It’s great to see such growth because it tells us that the outreach to the lab to get people to report their innovations and work with us in getting them protected and deployed means that it’s working, that people know who to contact. Hopefully, it means that they have some confidence in our ability to be helpful and steer them in the right direction.”
Anne Miller, director of NREL’s Technology Transfer Office, speaks to laboratory employees at a 2019 event. Photo by Werner Slocum, NREL.
NREL filed 188 patent applications in FY20, up from 124 the year before.
Lance Wheeler, a research scientist at NREL, has about a dozen patent applications in the pipeline tied to the discovery several years ago of a way to turn windows into solar cells. The technology relies on perovskite solar cells that enable the glass to darken and generate electricity, and also switch back to a clear pane. The most recent patent approved, for “Energy-harvesting chromogenic devices,” was granted in November, or almost four years after the provisional application was filed.
“It’s much different than writing a paper because you can write a paper and get it published within months,” said Wheeler, who shares credit on the patent with colleagues Joey Luther, Jeffrey Christians, and Joe Berry. “You’ll never get a patent awarded in months. It’s usually at least a year, and three is not crazy.”
Buildings across the United States account for nearly two-thirds of energy used, so the notion of using these “smart windows” to take advantage of sunlight could bring that energy consumption down.
The patents issued so far for Wheeler’s dynamic photovoltaic windows cover foundational aspects of the technology and sprang from the initial research. A series of patent applications followed.
“When you write the first patent application, you don’t know everything,” Wheeler said. “As you learn more and especially for very particular market needs, or what a product might look like, you learn what’s important and you continue to protect the things that are working. Then you make more discoveries, and you patent more things, but they’re all aligned in the same area.”
Perovskite Composition Earns Patent Protection
Alignment, as it turns out, is a key part of making perovskites most effective in capturing the sun’s energy. Unlike widely used silicon, which is a naturally occurring mineral, perovskites used in solar cells are grown through chemistry. The crystalline structure of perovskites has proven exceptionally efficient at converting sunlight to electricity.
NREL researchers have explored possible combinations for perovskite formulas to find the best. That work resulted in a patent issued in April 2020 for “Oriented perovskite crystals and methods for making the same.” The process begins with a small crystal that’s attached to another crystal and then another and on and on. The crystals are also oriented in the same direction. Kai Zhu, a senior scientist and one of the inventors, uses bricklaying as an analogy.
“You lay one layer down, you put one next to another, you align them perfectly,” he said. “You have to do this in order to build a very large wall. But if you have some randomness in it, your wall will collapse.”
The patent, which covers the composition of the perovskite, was issued to Zhu, Berry, and Donghoe Kim of NREL and to a scientist in Japan. NREL filed the patent application in 2017. Compared to a perovskite solar cell made of crystals allowed to grow randomly instead of in a specific orientation, the NREL-developed composition has been proven to have fewer defects and able to move charge carriers quickly. The result is a perovskite solar cell capable of reaching the highest efficiency.
“This represents the current best performing perovskite composition for the single-junction solar cell,” Zhu said.
Software Filings Reach New Record
NREL’s Technology Transfer Office received 116 software record (SWR) disclosures in fiscal 2020, establishing a new record and marking a big increase from 72 the prior year. The growth in submittals is partly due to more software being developed and authorized for free open-source release. One software record approved for closed-source licensing last year and now available for commercial users is the Electric Vehicle Infrastructure Projection tool, or EVI-Pro. A simplified, open-source version, known as EVI-Pro Lite, also has been released.
The core of EVI-Pro allows users to forecast the demand for electric vehicle charging infrastructure in a particular area. The predictive nature of the software also enables users to determine in advance how an influx of electric vehicles might affect the grid and energy demand. EVI-Pro relies on real-world information.
Eric Wood, the NREL researcher who oversaw the development of EVI-Pro, said it is not enough to simply consider how many charging stations were installed in an area previously and make an educated guess based on that information.
“That misses some key points,” he said. “The vehicle technology is evolving. The charging technology is evolving. And the behavior of individuals that own these vehicles is evolving.”
Early adopters of electric vehicles could charge them at home, in their garage. As the market expands, Wood said, people living in apartments or who have to park on the street need to have a place to plug in.
“The role of public charging infrastructure is going to continue to elevate as the market grows,” he said. “Continuing to develop the software with an eye on reflecting the latest situation in the market is one of the challenges that we face, so keeping EVI-Pro relevant and current is important.”
From the Laboratory to the Outside World
For Glatzmaier, the journey to see how well his invention could perform at isolating and removing hydrogen from the concentrating solar power plant was not a quick one. Grounded from flying because of the pandemic, last year he made four trips to the Nevada site by car. Each trip took about 13 hours one way.
Scientists typically keep close to their laboratory space, with companies able to license ideas that sprang from the inventive minds at NREL. Often, with license in hand, a company will conduct research using its own people. In Glatzmaier’s case, Nevada Solar One signed cooperative research and development agreements that have kept the scientist and company working closely together since 2015.
Glatzmaier initially planned to address the hydrogen buildup using two processes: one to measure the amount of the gas, and a second to extract it. Laboratory-scale tests showed his ideas would work, but he still expected some hesitation from company executives when it came time to trying out the devices on a much larger scale.
“I was thinking, they’re going to be very reluctant because companies tend to not want to make changes to their power plants once they are up and running,” he said. So he proposed installing the mechanism to only measure hydrogen buildup. Instead, the company wanted him to move ahead and tackle both problems at once. From the initial idea to installation has been a long road, but it does not end in Nevada.
Glatzmaier said 80 concentrating solar power plants exist around the world, and talks are in their final stages to license the technology for its use in these plants.
Learn more about licensing NREL-developed technologies.
—Wayne Hicks
Article courtesy of the NREL, The U.S. Department of Energy.
Folding e-bikes come in all shapes, sizes, and questionable design choices, but every once in a while, one comes along that makes me take a second look. After so much time on heavier folding e-bikes, that was my experience with the Tezeus Swift, a carbon fiber folding e-bike I recently spent a couple of weeks riding.
On paper, it looks like a lightweight urban commuter with modest power. In practice, it turned out to be a surprisingly polished little machine that feels far more refined than most of the budget folders we tend to see.
Let’s dive into what makes the Swift interesting, where it excels, and a couple of areas where I think Tezeus could still tighten things up.
Carbon fiber and compact practicality
The obvious selling point here is the frame. Folding e-bikes are almost always aluminum and usually fairly chunky because they have to maintain stiffness around the folding mechanisms. Tezeus went with carbon fiber on the Swift, and the result is immediately noticeable.
At around 36 pounds, this is one of the lightest full-featured folding e-bikes I’ve tested in quite a while. This is the kind of bike you can actually carry up a flight of stairs without questioning your life choices or icing your back.
The overall shape and hinge layout are fairly typical for a 20-inch folding bike, but the execution is cleaner and the mechanism looks less bulky.
Cable routing is internal, the frame is smooth, and the whole bike feels like it got a little extra attention at the design table. It folds down reasonably compact – not tiny in the way a Brompton does, but certainly in the “subway-friendly” category. If you live in a walk-up or take public transit regularly, this bike fits that lifestyle very well.
At just $1,199, you wouldn’t expect carbon at this price, but the bike delivers!
Ride quality: small wheels, good manners
The Swift runs on 20-inch wheels paired with a rear suspension setup. Let’s be real that this isn’t exactly downhill mountain biking suspension, though.
The ride is comfortable enough to smooth out expansion joints and patchy pavement without turning the bike into a pogo stick, but it’s not going to magically make every bump and pothole disappear, that’s for sure. It’s a short travel shock in a direct suspension setup, but at least it is an adjustable air shock.
Handling is quite predictable, though, and feels confidence-inspiring. Many small-wheel folders can feel twitchy, especially at speed, but the Swift strikes a nice balance. It’s still compact and quick-steering, but never unstable.
I found myself weaving through traffic and dodging parked-car doors with the same confidence I’d expect from a larger-framed commuter bike.
Motor and power: enough for city commuting
The Swift uses a 250 W hub motor with about 30 Nm of torque, which tells you right away this isn’t a hill-crusher or a moped-wannabe.
But Tezeus tuned the controller well, and real-world performance is better than the numbers suggest. Acceleration is smooth, quiet, and linear. It’s not going to rocket you forward, but it adds just enough assist to make starts and short climbs easy without overwhelming the bike’s lightweight personality.
The assist cuts off at around 20 mph, which keeps it squarely in Class 2 territory in the US. On flat ground, I cruised comfortably in the 16–20 mph range. The Shimano 7-speed setup helps here, and it’s refreshing to see a folder that still feels like a bike rather than a throttle-dependent mini-scooter. You can genuinely ride this thing without power if you need to.
Of course, there is still a throttle, as you might have guessed by the Class 2 designation. It’s also a bit of a strange feeling thumb throttle, which isn’t my favorite style but gets the job done. The bike feels so good to pedal that I rarely go only throttle on it, and use it more just when I want to get rolling as quickly as possible. The smaller capacity battery also means that using the pedal assist is a good idea. Plus, that torque sensor does a great job of making you feel more in tune with the bike when pedaling.
Battery and range
The 36 V, 7 Ah (252 Wh) battery is hidden inside the seat tube, which is a clean design choice and keeps the bike’s silhouette tidy. It’s also removable for charging indoors.
The tradeoff, of course, is size. With 252 Wh, you’re not getting long-range weekend adventures. In my testing, riding in the city with a mix of PAS levels, I saw realistic range in the 17–25 mile (30-40 km) window.
That’s perfectly fine for the short-to-medium urban commutes this bike is designed for, but it’s worth setting expectations accordingly. This isn’t a long distance touring bike, so don’t expect to ride it like one.
Cockpit and features
The bike includes a color display, decent-quality grips, and hydraulic disc brakes, which are a nice upgrade for more confident braking with less hand strength required. You can give a lighter pull and still get strong stopping power. The lever feel is crisp, and braking performance is solid, which matters when you’re darting between taxis and delivery vans in an urban environment.
Tezeus also kept the cockpit uncluttered. Many folding bikes get messy with clamps, triggers, and hinges everywhere, but the Swift keeps things simple. I appreciated that during folding and unfolding too – the process is quick and doesn’t require a three-handed origami routine.
A few downsides
As much as I enjoyed the Swift, there are a couple of areas where the bike shows tradeoffs.
First, the small battery will be limiting for riders who want to push longer distances or who live in particularly hilly areas. It’s clearly tuned for urban environments, but a slightly larger pack option would have broadened its appeal.
Second, the small-wheel geometry means this still isn’t the plushest bike on rough pavement. The rear suspension helps, but you’ll feel cracks and potholes more than you would on a full-size commuter.
Lastly, while the carbon frame is great for weight, it also means repairs or replacement in the event of damage could be more expensive than with a simple aluminum folder. Sure, aluminum repairs aren’t something most people are going to want to deal with either, but an aluminum frame can at least take a bit more of a beating.
Final thoughts
I went into this review expecting another generic folding e-bike with a quirky frame and middling performance. Instead, the Tezeus Swift feels like a thoughtfully executed lightweight commuter that prioritizes practicality, ride quality, and clean design. It’s not built for speed demons or range-hungry riders, but for people who want a portable, well-mannered e-bike for real urban use, it hits a sweet spot.
At $1,199, there are better watt-per-dollar deals out there, but bikes like this one don’t compete on performance. Instead, they do it for the lightweight and convenience.
If you value low weight, compact storage, and a bike-like ride over brute force or big battery numbers, the Tezeus Swift is absolutely worth a look.
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A view of the NEO magnetic plant in Narva, a city in northeastern Estonia. A plant producing rare-earth magnets for Europe’s electric vehicle and wind-energy sectors.
Xinhua News Agency | Xinhua News Agency | Getty Images
NARVA, Estonia — Europe’s big bet to break China’s rare earths dominance starts on Russia’s doorstep.
The continent’s largest rare-earth facility, situated on the very edge of NATO’s eastern flank, is ramping up magnet production as part of a regional push to reduce its import reliance on Beijing.
Developed by Canada’s Neo Performance Materials and opened in mid-September, the magnet plant sits in the small industrial city of Narva. This little-known border city is separated from Russia by the Narva River, which is an external frontier of both NATO and the European Union.
Analysts expect the facility to play an integral role in Europe’s plan to reduce its dependence on China, while warning that the region faces a long and difficult road ahead if it is to achieve its mineral strategy goals.
Magnets made from rare earths are essential components for the function of modern technology, such as electric vehicles, wind turbines, smartphones, medical equipment, artificial intelligence applications and precision weaponry.
Speaking to CNBC by video call, Neo CEO Rahim Suleman said the facility is on track to produce 2,000 metric tons of rare earth magnets this year, before scaling up to 5,000 tons and beyond as it seeks to keep pace with “an enormously quick-growing market.”
It is a frankly a billion-dollar problem that affects trillion-dollar downstream industries. So, it is worth solving.
Ryan Castilloux
managing director of Adamas Intelligence
The European region currently imports nearly all of its rare earth magnets from China, although Suleman expects Neo’s Narva facility to be capable of fulfilling around 10% of that demand.
“Having said that, our view of that number is something like 20,000 tons. So, we’d have a lot more work to do, a lot more building to do because I think the customers have a real need to diversify their supply chains,” Suleman said.
“We’re not talking about independence from any jurisdiction. We’re just talking about creating robust and diverse supply chains to reduce concentration risk,” he added.
Neo has previously announced initial contracts with Schaeffler and Bosch, major auto suppliers to the likes of German auto giants Volkswagen and BMW.
Europe’s push to deliver on its resource security goals faces several obstacles. Analysts have cited issues including a funding shortfall, burdensome regulation, a limited and fragmented made-in-EU supply chain and relatively high production costs. All of these raise questions about the viability of the EU’s ambitious supply chain targets.
“Europe needs a big increase in rare earth magnet capacity to even come close to a diversified supply chain for its carmakers,” Caroline Messecar, an analyst at Fastmarkets, told CNBC by email.
‘The guillotine still looms’
Once a previously obscure issue, rare earths have come to the fore as a key bargaining chip in the ongoing geopolitical rivalry between the U.S. and China.
In October, China agreed to delay the introduction of further export controls on rare earth minerals as part of a deal agreed between China’s Xi Jinping and U.S. President Donald Trump. China’s earlier rare earths restrictions, which upended global supply chains, remain in place, however.
“The threat is still there; the guillotine still looms. And so, I think collectively all of this has just sobered the West, end-users and governments to the risks that they face,” Ryan Castilloux, managing director of critical mineral consultancy Adamas Intelligence, told CNBC by phone.
“It is a frankly a billion-dollar problem that affects trillion-dollar downstream industries. So, it is worth solving,” he added.
European Commission President Ursula von der Leyen delivers her speech during a debate on the new 2028-2034 Multi-annual Financial Framework at the European Parliament in Brussels on November 12, 2025.
Nicolas Tucat | Afp | Getty Images
Europe, in particular, has been caught in the crosshairs of tariff turbulence. In its Autumn 2025 Economic Forecast, the European Commission, the EU’s executive arm, identified Chinese export controls leading to supply chain disruptions in several sectors such as autos and green energy.
It thrusts the issue of supply diversification in the spotlight for European policymakers, especially as demand is projected to grow until 2030 and EU supply remains highly reliant on a single supplier, according to a statement from a European Commission spokesperson.
In response, European Commission President Ursula von der Leyen announced in October that plans were underway to launch a so-called “RESourceEU” plan — along the lines of its “REPowerEU” initiative, which sought to overcome another supply issue — energy.
The Narva project predates these measures but, with 18.7 million euros ($21.7 million) in EU funding, it’s an example of what the EU hopes to achieve. And although its output is modest when compared to overall demand, it demonstrates how the EU plans to boost the bloc’s magnet output capacity and reduce dependence on Chinese supply.
Photo taken on Sept. 19, 2025 shows inside view of NEO magnetic plant in Narva, a city in northeastern Estonia.
Xinhua News Agency | Xinhua News Agency | Getty Images
China is the undisputed leader of the critical minerals supply chain, responsible for nearly 60% of the world’s rare earths mining and more than 90% of magnet manufacturing. Europe, meanwhile, is the world’s biggest export market for Chinese rare earths.
Russia’s doorstep
The location of Neo’s new magnet facility, meanwhile, has raised some eyebrows, given the potential security challenge of being in such close proximity to Russia.
Speaking shortly after Moscow’s full-scale invasion of Ukraine in early 2022, Russian President Vladimir Putin said Narva was historically part of Russia and needed to be taken back.
Asked why the company positioned its new rare earths plant there, Neo’s Suleman said the firm already had an existing infrastructure presence in the country, “and the right place was to be in Europe.”
“And then you go one step deeper, which is to get into Estonia. We have a long history in Estonia. We already have a rare separation facility that can do both light rare earths, and we’re developing heavy rare earths there,” Suleman said.
“We’ve been extremely impressed by the quality of the people in Estonia, their education level, their commitment to hard work … So, you put all that together, along with the support that we received both in Estonia and in the EU, and it was a great choice for us,” he added.
Estonian lawmakers have welcomed the potential of Neo’s magnet plant, saying the facility will benefit the development of both the country and broader region.
Jaanus Uiga, deputy secretary general for Energy and Mineral Resources of Estonia, said Neo’s magnet plant opened “very on time.”
Speaking to CNBC on Oct. 30, Uiga acknowledged economic tensions between the U.S. and China over rare earths, saying Estonia and the EU needed to adapt to an evolving situation.
“It is a very unique processing capability that was built in Estonia and also we are very happy for that because it happened in a region that is transitioning away from fossil fuels,” Uiga told CNBC’s “Squawk Box Asia.”
Newly published data from the Federal Energy Regulatory Commission (FERC), reviewed by the SUN DAY Campaign, reveal that solar accounted for over 75% of US electrical generating capacity added in the first nine months of 2025. In September alone, solar provided 98% of new capacity, marking 25 consecutive months in which solar has led among all energy sources.
Year-to-date (YTD), solar and wind have each added more new capacity than natural gas has. The mix of all renewables remains on track to exceed 40% of installed capacity within three years; solar alone may be 20%.
Solar was 75% of new generating capacity YTD
In its latest monthly “Energy Infrastructure Update” report (with data through September 30, 2025), FERC says 48 “units” of solar totaling 2,014 megawatts (MW) were placed into service in September, accounting for 98% of all new generating capacity added during the month. Oil provided the balance (40 MW).
The 567 units of utility-scale (>1 MW) solar added during the first nine months of 2025 total 21,257 MW and were 75.3% of the total new capacity placed into service by all sources. Solar capacity added YTD is 6.5% more than that added during the same period a year earlier.
Solar has now been the largest source of new generating capacity added each month for 25 consecutive months, from September 2023 to September 2025. During that period, total utility-scale solar capacity grew from 91.82 gigawatts (GW) to 158.43 GW. No other energy source added anything close to that amount of new capacity. Wind, for example, expanded by 11.07 GW while natural gas’s net increase was just 4.60 GW.
Between January and September, new wind energy has provided 3,724 MW of capacity additions – an increase of 28.6% compared to the same period last year and more than the new capacity provided by natural gas (3,161 MW). Wind accounted for 13.2% of all new capacity added during the first nine months of 2025.
Renewables were 88% of new capacity added YTD
Wind and solar (plus 4 MW of hydropower and 6 MW of biomass) accounted for 88.5% of all new generating capacity while natural gas added just 11.2% YTD. The balance of net capacity additions came from oil (63 MW) and waste heat (17 MW).
Utility-scale solar’s share of total installed capacity (11.78%) is now virtually tied with that of wind (11.80%). If recent growth rates continue, utility-scale solar capacity should surpass that of wind in FERC’s next “Energy Infrastructure Update” report.
Taken together, wind and solar make up 23.58% of the US’s total available installed utility-scale generating capacity.
Moreover, more than 25% of US solar capacity is in the form of small-scale (e.g., rooftop) systems that are not reflected in FERC’s data. Including that additional solar capacity would bring the share provided by solar and wind to more than a quarter of the US total.
With the inclusion of hydropower (7.59%), biomass (1.05%) and geothermal (0.31%), renewables currently claim a 32.53% share of total US utility-scale generating capacity. If small-scale solar capacity is included, renewables now account for more than one-third of the total US generating capacity.
Solar soon to be No. 2 source of US generating capacity
FERC reports that net “high probability” net additions of solar between October 2025 and September 2028 total 90,614 MW – an amount almost four times the forecast net “high probability” additions for wind (23,093 MW), the second fastest growing resource.
FERC also foresees net growth for hydropower (566 MW) and geothermal (92 MW) but a decrease of 126 MW in biomass capacity.
Meanwhile, natural gas capacity is projected to expand by 6,667 MW, while nuclear power is expected to add just 335 MW. In contrast, coal and oil are projected to contract by 24,011 MW and 1,587 MW, respectively.
Taken together, the net new “high probability” net utility-scale capacity additions by all renewable energy sources over the next three years – the Trump administration’s remaining time in office – would total 114,239 MW. On the other hand, the installed capacity of fossil fuels and nuclear power combined would shrink by 18,596 MW.
Should FERC’s three-year forecast materialize, by mid-fall 2028, utility-scale solar would account for 17.3% of installed U.S. generating capacity, more than any other source besides natural gas (39.9%). Further, the capacity of the mix of all utility-scale renewable energy sources would exceed 38%. The inclusion of small-scale solar, assuming it retains its 25% share of all solar energy, could push solar’s share to over 20% and that of all renewables to over 41%, while the share of natural gas would drop to less than 38%.
In fact, the numbers for renewables could be significantly higher.
FERC notes that “all additions” (net) for utility-scale solar over the next three years could be as high as 232,487 MW, while those for wind could total 65,658 MW. Hydro’s net additions could reach 9,927 MW while geothermal and biomass could increase by 202 MW and 32 MW, respectively. Such growth by renewable sources would swamp that of natural gas (29,859 MW).
“In an effort to deny reality, the Trump Administration has just announced a renaming of the National Renewable Energy Laboratory (NREL) in which it has removed the word ‘renewable’,” noted the SUN DAY Campaign’s executive director Ken Bossong. “However, FERC’s latest data show that no amount of rhetorical manipulation can change the fact that solar, wind, and other renewables continue on the path to eventual domination of the energy market.”
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