From Iceland to Alaska to France, NREL geoscientist Amanda Kolker has studied geothermal energy all around the world. After graduating with a bachelor’s degree in geology, Kolker went to study volcano and glacier interactions in Iceland but was quickly distracted by Iceland’s vast geothermal energy systems.
As an earth scientist, climate change has been on Kolker’s radar for most of her life, so studying geothermal energy was the perfect combination of her interest in earth science and passion for tackling climate change. Now at NREL, Kolker has brought her global perspective to help improve our understanding of geothermal resources and expand our utilization of those resources such as for heating and cooling.
Bringing Lessons Learned to NREL
After her travels, Kolker came to NREL to continue combining her passions for geothermal energy and tackling climate change. Kolker has worked on a variety of projects ranging from resource assessments to techno-economic analysis of geothermal district heating systems.
Now, Kolker is working on an exciting new international project, working with partners in Iceland and four other European countries to explore “supercritical” energy resources and systems and apply lessons learned to demonstration sites in Iceland and Oregon. Because supercritical resources may be able to produce 10 times the amount of energy from one well as a typical geothermal plant, it would be extremely beneficial to tap into these resources.
Looking Beyond Iceland
Kolker dedicated the next phase of her career to exploring for geothermal resources, earning a Ph.D. from the University of Alaska. There, she helped develop the lowest-temperature geothermal resource in the world for a combined heat and power microgrid in Alaska.
That system uses one resource to generate electricity, heat greenhouses and log cabins, and cool an ice museum. Her Ph.D. research and subsequent consulting work focused on looking at replicating that approach at other geothermal systems near remote communities in Alaska with high costs of power, high costs of heat, and low energy resilience.
Many years later, Kolker moved to France and witnessed how lower temperature geothermal resources were used for agriculture, industry, and to heat and cool districts. Many European and Asian countries use shared heating and cooling systems; studying these French systems helped Kolker bring key lessons back to the United States.
“If we want to better utilize the vast potential of geothermal energy in the United States, we need a bit of a paradigm shift,” Kolker said. “Renewable heating and cooling technologies should be given the same degree of attention as renewable electricity technologies, as heating and cooling accounts for up to 40% of U.S. energy demand. That demand is still mostly met by combustion of fossil fuels, producing temperatures well above what is typically needed.”
Amanda Kolker while traveling in Akutan, Alaska. Photo courtesy of Amanda Kolker, NREL
Leveraging Industry Partnerships
Assessing characterization and use of earth’s subsurface resources, she is keeping an eye on the relationship between the fossil fuel and geothermal sectors, as oil and gas companies have useful subsurface data that the geothermal energy sector needs.
She has seen how government involvement in countries like Japan, France, and Iceland have pushed geothermal heat and power projects through to development, and Kolker is excited to see how DOE will continue to help push geothermal energy research to take off even more.
From her global travels, Kolker has been inspired by several things, including:
Collaborations among subsurface industries
Governments taking on risks
Focusing heavily on heating and cooling
Geothermal Combined heat-and-power (CHP) microgrids for energy resilience.
The Goodwood Festival of Speed happened this weekend, and Ford’s electric SuperTruck managed to beat every other vehicle, gas or electric, to the top of the hill.
The Goodwood Festival of Speed is a yearly event on the grounds of Goodwood House, a historic estate in West Sussex, England. The event started in 1993, and has become one of the largest motorsports festivals in the world.
Many companies attend Goodwood to debut new models, and enthusiasts or race teams will show off rare or customized vehicles or race unique cars.
One of the central features of the event is the Goodwood hillclimb, a short one-way race up a small hill on the property. The track is only 1.17mi/1.89km long, with a 304ft/92.7m uphill climb. It’s not a particularly taxing event – merely a fun way to show off some classic or unique racing vehicles.
Many of these cars came just to show off, to do a demonstration run up the hill and join the company of the world’s most exotic hypercars.
But some cars show up for the glory, and join “the shootout,” the sprint up the hill for the best time.
And Ford didn’t come to show off, it came to win. And in order to win, it brought…. a truck.
The F-150 “SuperTruck” / Source: Ford
Ford’s SuperTruck is a one-off, 1,400+ horsepower prototype electric vehicle, supposedly based on the F-150 Lightning, but in fact bearing almost no similarity or even resemblance.
It’s been festooned with aerodynamic elements all about, lowered, equipped with race tires, and power output has been boosted to the aforementioned 1,400hp. It was driven by Romain Dumas, who Ford have been using since 2022 to drive their electric prototypes.
For the purposes of a hillclimb, perhaps the most important aspect is the Ford’s electric drive. Hillclimbs are a popular form of racing in Britain, and often consist of a short sprint up a small hill, showcasing acceleration and nimbleness more than anything.
Electric cars do well in this sort of racing due to their instant low-end torque, being able to jump off the line faster than the gas competition. They also tend to have plenty of torque, which helps with carrying them up the hills involved.
EVs do well on longer hillclimbs too, because as races reach higher and higher altitudes, gas cars suffer from reduced power due to less oxygen being available for combustion. EVs don’t suffer from this, so they tend to do well at, say, Pike’s Peak hillclimb – which, incidentally, Ford also brought its SuperTruck to, and also beat everybody at.
This year was not the first time Ford has brought a ridiculous electric chonker to Goodwood. Last year, it brought the SuperVan, which has a similar powertrain to the SuperTruck, and also beat everybody.
The SuperVan’s main competition last year was Subaru’s 670hp “Project Midnight” WRX, piloted by Scott Speed, who Dumas handily defeated by over two seconds, 43.98 to 46.07. And this year, the SuperTruck’s main competition was… the same Subaru, piloted by Speed, who Dumas handily defeated by just under two seconds, 43.23 to 45.03.
Ford did not, however, set an all-time record with the SuperTruck, in fact coming in fifth on the list of fastest runs ever. In front of it are two gas cars and two electric – the gas-powered Gould GR51, a tiny open-wheel race car, with a 42.90; an F1 car driven by Nick Heidfeld that set a 41.6 in 1999; the electric VW ID.R, also piloted by Dumas with a 39.90 (which broke Heidfeld’s 20-year record); and the all-time record holder the electric McMurtry Spierling “fan car,” with a mind-blowing 39.08 in 2019.
You’ll notice something similar about all of these – they’re all small racecars that are actually built for speed, whereas the truck is… a big truck. And yet, Ford still managed to beat every single challenger this year, with its big honker of an EV, because EVs are just better.
Watch the run in full below, starting at 9:34. Blink and you’ll miss it.
And now, if Ford continues its pattern, we’re looking forward to seeing the Super Mustang Mach-E at Goodwood next year, which did well this year at a tough Pike’s Peak, getting first in its class and second overall, likely due to inclement conditions that limited running to the lower portion of the course, limiting the EV’s high-altitude advantages.
Given the Super Mustang is a real racecar, and not a chonky truck, it might even give VW’s ID.R time a run for its money (but, frankly, really has no shot at the overall record, because the Spierling’s “fans” give it an absurdly unbeatable amount of downforce).
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GM is preparing to begin converting production lines at its battery plant in Tennessee later this year for low-cost LFP EV batteries. GM’s joint venture, Ultium Cells, announced additional upgrades at the facility on Monday as it prepares for a new era.
GM will build low-cost LFP EV batteries in the US
After beating out Ford and Hyundai last year to become America’s second-best EV seller, GM is widening its lead in 2025.
Ultium Cells, GM’s joint venture with LG Energy Solution, announced plans to upgrade its Tennessee battery plant on Monday as it prepares to introduce lower-cost lithium-iron-phosphate (LFP) battery cells.
The upgrades build on the $2.3 billion investment announced in April 2021 to convert the facility into a key EV and battery hub. The company initially said the Tennessee plant was “at the heart of GM’s EV strategy,” but that was also when GM was still committed to an all-electric future.
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GM will begin converting production lines to accommodate the lower-cost LFP batteries at the facility later this year. By late 2027, the company expects to start commercial production.
Ultium Cells Spring Hill, Tennessee plant (Source: Ultium Cells)
With LFP batteries, GM said it’s “targeting significant battery pack cost savings compared to today’s high-nickel battery pack while increasing consumer EV choice.”
The Spring Hill, Tennessee, plant currently employs around 1,300 employees. With the ability to produce multiple chemistries, GM said the facility will “guide the next phase of” its battery strategy.
2025 Chevy Equinox EV LT (Source: GM)
After choosing Spring Hill for its LFP batteries, the next step, according to GM, is finding a home for lithium manganese-rich batteries. GM recently announced plans to become the first company to produce LMR prismatic battery cells at commercial scale.
GM plans to build a “next-gen affordable EV) in Kansas (Source: GM)
Meanwhile, GM’s Warren, Ohio, plant will continue producing NCM batteries, which it says have helped it unlock over 300 miles of range.
Electrek’s Take
GM’s electric vehicle sales more than doubled in the second quarter, led by the hot-selling Chevy Equinox EV. The company sold nearly 46,300 EVs in Q2, up 11% from last year.
Chevy is currently the fastest-growing EV brand in the US, while Cadillac claims to have already achieved “EV leader” status in the luxury segment this year. However, that does not include Tesla.
Even GMC is building momentum with the new Sierra EV, seeing strong initial demand, and Hummer EV sales are picking up.
With new, lower-cost batteries on the way, GM aims to continue narrowing the gap with Tesla. GM offers 13 electric vehicles, covering nearly every segment of the market. It already calls the Chevy Equinox EV “America’s most affordable +315 range EV,” but GM has even lower-priced models on the way, including the next-gen Chevy Bolt EV.
Ready to test drive one for yourself? You can use our links below to find Chevy, Cadillac, and GMC EVs in your area.
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Elon Musk is teasing Tesla doing “the most epic demo ever”, but we heard him claim that before and nothing came of it.
On X last night, Tesla CEO Elon Musk said that he was shown something at the Tesla Design Studio and that the company will hold the ” most epic demo ever by the end of the year”:
Just left the Tesla Design Studio. Most epic demo ever by the end of the year. Ever.
I used to get excited about Musk making statements like that, but I was burned one too many times.
In 2016, Musk said this:
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Our goal is, and I feel pretty good about this goal, that we’ll be able to do a demonstration drive of full autonomy all the way from LA to New York … by the end of next year.
The end of 2017 came and went without this demonstration and now in 2025, Tesla can’t do it either.
However, since Musk referenced being at Tesla’s Design Studio, where it mostly works on car designs and advanced features, people are speculating that it’s something else.
A possibility is the next-gen Tesla Roadster, as Musk has made similar comments about it in the past, but they were again about demonstrations that never happened.
Shortly after the unveiling of the next-gen Roadster in 2017, Musk talked about adding cold air thruster to the supercar to allow it to have unprecedented racing performance and even possibly hover over the ground.
5 years later, it never happened, and the Roadster was initially supposed to come to market in 2020. It has never launched.
In 2024, Musk claimed that Tesla would unveil and demo the new Roadster by the end of the year:
It also didn’t happen, and the CEO instead said that Tesla was “close to finalizing design” at the end of 2025.
Electrek’s Take
The comment about the demo makes me think of the Roadster, but it could be something else. Maybe a bot, but I’m not sure out of the design studio.
Either way, for the reasons listed above, it’s hard to get too excited.
You can’t just believe what Musk says these days. Historically, he has been wrong or lied too often, especially about upcoming demonstrations like this new comment.
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