Connect with us

Published

on

Amanda Kolker. Photo by Amy Griffin, NREL

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.

Notably, Kolker was highlighted in DOE’s Women in Energy series and recently published 2021 U.S. Geothermal Power Production and District Heating Market Report, along with her co-authors.

Learn more about her colleagues and NREL’s geothermal research.

Article courtesy of National Renewable Energy Laboratory (NREL)

Featured photo by Matt Palmer on Unsplash.

 

Appreciate CleanTechnica’s originality? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.

 

 


Advertisement



 


Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Continue Reading

Environment

Another Japanese automaker is now ‘re-evaluating’ EV plans

Published

on

By

Another Japanese automaker is now 're-evaluating' EV plans

Subaru is the latest Japanese automaker to announce it will “re-evaluate” its EV plans. The company is rethinking its strategy with slowing sales and a potential multi-billion-dollar hit from Trump’s auto tariffs. The tariffs might not even be Subaru’s biggest threat.

Subaru and other Japanese automakers adjust EV plans

Within the past week, Japanese automakers, including Nissan, Honda, Toyota, and now Subaru, have announced major adjustments to their EV plans.

After releasing fiscal year financial results on Wednesday, Subaru’s CEO, Atsushi Osaki, said, “We are re-evaluating our plans, including the timing of investments.” Osaki added that the move is due to “today’s rapidly changing environment” and other external factors.

Like most of the industry, Subaru is bracing for a shift under the Trump administration, which could cost it billions. With around half of its vehicles sold, the US is key for the Japanese automaker.

Advertisement – scroll for more content

Subaru said Trump’s new auto tariffs could cost the company up to $2.5 billion this year. The automaker is looking at ways to boost US production, but it won’t be easy.

Japanese-automaker-EV-plans
2025 Subaru Solterra (Source: Subaru)

Tomoaki Emori, Subaru’s senior managing executive director, said (via Automotive News), “Under the current circumstances, there is probably no way not to expand in the US. We must think about how to go about that.”

Emori added that the company still has the production capacity, “so we would like to mitigate the impact of tariffs while making use of it.”

Subaru joins a growing list of automakers in pulling its earnings forecast, citing “developments in US tariff policy” make it hard to forecast.

Japanese-automaker-EV-plans
2025 Subaru Solterra (Source: Subaru)

The company’s global sales fell 4.1% to 936,000 units over the past year. In North America, deliveries also fell 4.1% to 732,000 vehicles. Subaru anticipates global sales will continue dropping to around 900,000 this year, or another 4% drop. A part of the forecast is due to downtime at its Yajima plant as Subaru prepares to produce EV batteries.

Osaki said Subaru is “making various preparations for a BEV-dedicated plant,” but added it may add a mix of gas-powered vehicles.

Japanese-automaker-EV-plans
2026 Subaru Trailseeker electric SUV (Source: Subaru)

Subaru unveiled its second EV for the US at last month’s NY Auto Show, the 2026 Trailseeker. The Outback-sized electric SUV will go on sale in 2026, joining the smaller Solterra in Subaru’s EV lineup in the US.

Since “It is becoming more difficult to decide how to incorporate electrification into our production mix,” Emori said, Subaru is “thinking about how to incorporate hybrids and plug-in hybrids.”

Electrek’s Take

Subaru and other Japanese automakers are quickly falling behind Chinese EV leaders like BYD in some of their most important sales regions, like Southeast Asia.

Delaying new EV models and other projects will only set them further behind in the long run. Nissan is in crisis mode after scrapping plans to build a new battery plant in Japan. The facility was expected to produce lower-cost LFP batteries, which could have helped Nissan compete on costs with BYD and others.

Last week, Toyota’s President, Koji Sato, said the company will be “reviewing” its goal of selling 1.5 million electric vehicles by 2026. And just yesterday, Honda announced plans to pause around $15 billion in planned EV investments in Canada.

BYD and other EV leaders are expanding overseas to drive growth after squeezing foreign brands, especially Japanese automakers, out of China.

Next year, BYD is launching its first kei car, or mini EV, that’s expected to be a big threat to Japanese automakers. A Suzuki dealer (via Nikkei) warned, “Young people do not have a negative view of BYD. It would be a huge threat if the company launches cheap models in Japan.”

FTC: We use income earning auto affiliate links. More.

Continue Reading

Environment

Porsche just added 97,000 more charging stations to its app

Published

on

By

Porsche just added 97,000 more charging stations to its app

Porsche Cars North America has integrated over 97,000 more charging stations into its app, streamlining its Porsche Charging Service.

That brings the total number of EV charging stations available to Porsche Charging Service customers in the US to 102,000, with more scheduled to be added in 2025. That means Porsche drivers can now use the My Porsche app as a one-stop shop to easily find, use, and pay at most J1772 and CCS charging stations.

“This is a significant milestone for Porsche and the electric vehicle journey,” said Timo Resch, president and CEO of Porsche Cars North America. “We know flexibility and choice are important.”

Customers in the Porsche Charging Service inclusive period – that’s the year after you buy your EV – or who sign up for Porsche Charging Service Premium can now access the ChargePoint, EV Connect, EVgo, Flo, EvGateway, and Ionna networks, in addition to chargers in the Electrify America network. 

Advertisement – scroll for more content

Customers in the Porsche Charging Service Base plan will receive access later this summer. 

More info is here.

Read more: ChargePoint unveils ‘revolutionary’ V2X EV charger tech that can double Level 2 speeds


If you live in an area that has frequent natural disaster events, and are interested in making your home more resilient to power outages, consider going solar and adding a battery storage system. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. They have hundreds of pre-vetted solar installers competing for your business, ensuring you get high quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use and you won’t get sales calls until you select an installer and share your phone number with them.

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*

FTC: We use income earning auto affiliate links. More.

Continue Reading

Environment

Tesla (TSLA) board explore new pay deal for Elon Musk

Published

on

By

Tesla (TSLA) board explore new pay deal for Elon Musk

Tesla’s (TSLA) board is reportedly exploring a new CEO pay deal for Elon Musk, who might not get back his $55 billion 2018 compensation package.

According to a new Financial Times report, Tesla’s board created a new “special committee” to explore a new CEO pay package for Musk.

The report points to the committee looking at new stock options and “alternative ways” to compensate Musk if Tesla fails to reinstate his 2018 compensation package, which was rescinded by a judge who found that Musk negotiated the deal with a board under his control and then misrepresented it to shareholders.

Musk is Tesla’s largest shareholder and therefore, he stands to benefit the most when the company does well. However, he doesn’t take a salary for his role as CEO.

Advertisement – scroll for more content

Historically, He has received stock compensation packages, with the one secured in 2018 being the controversial one currently under contention.

Since then, no new CEO compensation package has been approved, and Tesla has not suggested another one as it tried to appeal the judge’s decision on the 2018 package.

The company is currently attacking the decision on two fronts with an appeal to the Delaware Supreme Court and a new legislation in Delaware to try to circumvent the decision altogether.

FT reporting that the board is working on a new compensation package with backpay could point to Tesla anticipating not being able to reinstate the original compensation package.

Robyn Denholm and Kathleen Wilson-Thompson are the board members reportedly on the new committee.

Denholm took over from Musk as Tesla’s chair, and she has recently made headlines for selling her Tesla stock options for more than $530 million over the last few years.

Electrek’s Take

It increasingly looks like Tesla won’t be able to distance itself from Musk and separate its fate from his.

Musk has masterfully convinced Tesla shareholders that the destruction of its core business, selling electric vehicles, doesn’t matter because the company is on the verge of solving self-driving – something he has claimed every year for the last 6 years and has been wrong every time.

Now that they don’t care about EVs, there’s no point in blaming Musk for killing demand and delivering a single new vehicle in 5 years, the Cybertruck, a commercial flop.

Therefore, the only thing that will make Tesla shareholders stop wanting Musk as CEO is if they stop believing his self-driving and humanoid robot claims.

FTC: We use income earning auto affiliate links. More.

Continue Reading

Trending