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.
Tesla CEO Elon Musk said the company will remove “safety monitors” from the passenger seats of Tesla’s Robotaxi vehicles in “about three weeks,” which would mean we’d see completely driverless Teslas in the Austin area potentially by the end of the year – if that timeline sticks.
Tesla has been working on a system that would allow vehicles to drive themselves, which has been in “beta” release for over a decade now. It calls this system “Full Self-Driving,” despite the fact that the system does not currently drive itself.
That has not stopped Musk from consistently promising more and more of the system, despite its stagnating capabilities. Over the course of the last decade, Musk has consistently promised driverless vehicles within the coming year, with deadlines consistently passing by without achieving that goal.
One of those promises has been the creation of a driverless taxi network, which Tesla used to call “Tesla Network” and is now calling “Robotaxi.” The idea originally came with the promise that owners could use their cars to make money by running them as taxis, but that hasn’t panned out.
Tesla did roll out its own version of a taxi network, though, in Austin, in June of this year. While it’s done a few cool things, the cars each have a “safety monitor” in the passenger seat who can take control at any time, which means the cars aren’t truly “driverless” since there is an operator, they’ve just been moved to the passenger seat.
In the time since Robotaxi’s rollout, it’s made quite a few mistakes and had a high crash rate. But Tesla also delivered one fully unoccupied vehicle from the factory to a local buyer, which was a cool (and, as yet, still unique) stunt.
Throughout the year, Musk has claimed loudly that the system would improve rapidly, stating that by the end of the year Robotaxis would be available to half of the US population (they are not) and that Tesla’s fleet would grow by more than 10x by the end of the year (it has not).
But now we have another bold prediction from Musk, stating that the safety monitors will be out of a job by the end of the year.
During a videoconference at a hackathon event for xAI, one of Musk’s other companies (which he is trying to get Tesla shareholders to bail out), Musk was asked a question about the barriers to unsupervised full self-driving. Musk answered:
Unsupervised is pretty much solved at this point. There will be Tesla Robotaxis operating in Austin with no one in them, not even anyone in the passenger seat, in about three weeks. I think it’s pretty much a solved problem, we’re just going through validation right now.
The “three weeks” timeline is familiar to longtime Tesla followers. Over the years, Musk has often promised fixes or software updates in “two weeks,” and they often take longer than that.
Three weeks is a lot closer than the “next year” promise that we’ve heard so many times for full autonomy, but given its proximity to the oft-inaccurate two-week timeline, we’re not sure these vehicles will actually be ready in time for New Year’s Eve celebrations.
Nevertheless, it’s a closer timeline than Musk has usually given, so there may be truly driverless Teslas operating sometime soon™.
Also, reading the statement more closely, it sounds like they won’t necessarily remove safety operators from every vehicle, but some vehicles. This could be similar to the singular driverless vehicle delivery that Tesla did – a PR stunt, rather than a full rollout. We’ll have to wait and see.
Tesla’s main competitor in the robotaxi space is Waymo, which has been operating truly driverless vehicles for several years now. The company has also been operating autonomous, driverless vehicles in Austin since March of this year.
Musk went on to talk about future improvements to Tesla’s software and hardware in his answer.
The company is currently on hardware previously deemed HW4, though to cash in on the AI stock market bubble, it now refers to that system as AI4. He said that AI5 will be 10-40 times better than HW4 and go into volume production in 2027, with AI6 coming soon after.
Musk’s mention of future hardware improvements neglects one important aspect of these improvements, which is that for every hardware improvement Tesla puts into its fleet, the more vehicles it will have to upgrade later.
Tesla long promised that its vehicles had all the hardware for self-driving, which means it’s going to have to upgrade a lot of cars – and there are court cases around the world seeking to force the company to do so. Together, these lawsuits and other potential challenges could mean billions of dollars in liabilities for the company.
Musk then closed his statements by claiming that “our” goal is to “to understand the meaning of life and… propagate consciousness out to the stars,” which is not Tesla’s goal. Tesla’s actual goal is to accelerate the transition to sustainable energy. He may have been referring to xAI’s goal, but given the answer was about Tesla, perhaps he was confused (or perhaps he doesn’t care about Tesla anymore, and isn’t a good CEO for the company as a result…)
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VW’s retro-tastic minivan hasn’t been the sales success the company might have wanted, and a lot of that has to do with the van’s sky high price tag. Now, VW is asking: will a $10,000 discount be enough to create some buzz for the ID.Buzz?
Volkswagen is offering $7,500 in Retail Customer Bonus cash this month – up from the $2,500 the company offered its Black Friday customers – that, along with an additional $2,500 unadvertised dealer cash incentive that CarsDirect is reporting absolutely, definitely exists, adds up to a stout $10,000 total discount on the all-electric VW ID.Buzz … and that’s before you start haggling with your dealer over the MSRP.
It’s a lot
As much as I like the the Volkswagen ID.Buzz, its starting MSRP around $61,545 (incl. destination) puts it at nearly twice what you’d probably expect a minivan to cost if the last time you shopped for one was at a Dodge store. Still, that hefty price tag is some $20,000 higher than the baseline Toyota Sienna hybrid or Honda Odyssey.
That 50% higher price is a lot to swallow even if you do buy into the nostalgia. Still, the ID.Buzz is capable enough, and with ~230 miles of range and 282 hp on offer from its battery/electric motor combo – plus Supercharger access – it’s at least able to keep up with the minivan competition.
So, while that $10,000 discount isn’t going to turn the ID.Buzz into the second coming of the affordable, family-hauling Caravan, it does bring VW’s electric people-mover a little closer to earth. In fact, with a $50K price tag, it’s right in line with the average transaction price of a new vehicles. So, if nothing else, that reduced price could finally gives electric minivan buyers something to buzz about (I tried so hard to work that in, you guys).
If you’ve been shopping for a family-hauler and dig the retro vibe over something like the (excellent) Kia EV9, click through the link below and set up a test drive at your local VW dealer.
SOURCE: CarsDirect; images via VW.
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Peterbilt has jumped into the MD truck ring with the launch three new medium-duty electric trucks that deliver zero-emissions power, ultra-fast 350 kW charging, and proven, versatile platforms for delivery, utility service, and vocational upfitting.
The new Peterbilt 536EV, 537EV, and 548EV medium-duty trucks slot into the same versatile medium-duty segments the company’s fleets already know, but swap diesel power for latest PACCAR ePowertrain, with up to 605 hp and 1,850 lb-ft of torque available at 0 rpm. That big motor draws power from a variety of LFP battery packs and be fitted with ePTO options rated for either 25 kW (two-battery option) or 150 kW (three-battery option), making them suitable for that can be sized for daily delivery routes, urban utility work, and municipal fleets looking to cut both emissions and maintenance costs.
What’s more, the new Peterbilt’s flexible architecture allows for integration with existing PACCAR suspension bits to make 4×2 and 6×4 configurations, and any wheelbase of 163 inches or longer, and up to 82,000 lbs. gross combined weight ratings possible.
“[The new trucks are] optimized for the demands of the medium duty segment, the next generation of Peterbilt electric vehicles deliver excellent efficiency, rapid charging and versatile configurations elevating customer productivity across a wide range of applications,” said Erik Johnson, Peterbilt assistant general manager, Sales & Marketing.
In addition to all those goodies, the PACCAR EV tech continues to be top-notch, with the previously-mentioned 350 kW charging, regenerative braking, and industry-leading ergonomics.
Peterbilt’s new MDEVs ship with a blue accented crown and grille for a distinctive exterior look, as well as EV-exclusive panels on the side of the hood. The interior design features laser-etched trim panels on the EV-exclusive Magneto Gray interior, just in case the driver in the quiet, smooth, and stink-free cabin forgets they’re in an electric truck.
Electrek’s Take
Ignore the headlines. The death of the commercial EV market simply hasn’t happened, and won’t happen any time soon.
If you believe the engineers and analysts at MAN Trucks and Orange EV (and, you should), an EV like this can pay for itself in reduced fuel and maintenance costs even without incentives, then you should already know what I’m about to say: the future of trucking is 100% electric.
SOURCE | IMAGES: PACCAR.
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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.
FTC: We use income earning auto affiliate links. More.
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