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How Texas unleashed a geothermal boom

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Saturday, April 20, 2024

With its nation-leading renewables fleet and oil and gas industry, Texas is poised to dominate what boosters hope will be America’s next great energy boom: a push to tap the heat of the subterranean earth for electricity and industry. That technology, known as geothermal energy, has demonstrated the rare ability to unite the state’s warring political camps — and is fueling a boom in startups that seek to take it national.  While other forms of renewable energy lost ground during Texas's 2021 and 2023 legislative sessions before a legislature that combined a hard-right political bent with a focus on building more "dispatchable" power, the geothermal industry advanced. State lawmakers passed four key bills in 2023  that helped lay the foundation for a new generation of drilling — with just one vote against.  In the 2023 session, "we didn't get put into the renewable bucket, we didn't really get put into the oil and gas bucket,” said Barry Smitherman, former Republican head of the state Railroad Commission and head of the Texas Geothermal Energy Alliance. Instead, “we became this hybrid that was acceptable to people on both sides of the aisle"​ The regulatory clarity established by those bills  has laid the groundwork for a new generation of startups powered by the state’s urgent need for reliable electricity in the face of increasingly extreme weather, as well as a growing trickle of oil and gas veterans leaving an industry they see as plagued by boom-and-bust cycles. As of last year, Texas had 11 of the 27 total geothermal startups in the US. On Wednesday, startup Bedrock Energy unveiled a new geothermal-powered heating and cooling system at a commercial real estate complex in Austin. Earlier this month, next-generation drilling company Quaise — which uses high powered radio waves to drill through hard rock — filed a permit with the state energy regulator to begin field testing its drills, years ahead of what industry insiders had thought was possible. Houston-based Fervo is building a 400-megawatt project in Utah. Military bases across the state are looking into geothermal as a potential source of secure electricity in an era of price spikes and cyberattacks. And later this year, Sage Geosystems, a company founded by three former Shell executives, will begin using a fracked well as a means of storing renewable energy — which CEO Cindy Taff said will get the company most of the way towards the ultimate goal of commercially viable geothermal electricity. The rise in geothermal startups comes alongside a broader surge in Texas renewable energy. Last month, solar generation eclipsed coal both in terms of power generation and market share. Texas also has more utility-scale wind and solar capacity than any other state, though it lags California when it comes to rooftop solar.  The Sage project shows the conceptual benefits of geothermal energy to the Texas grid, which increasingly runs on wind and solar energy. When the sun is high, the wind is blowing and demand is low, Sage will pump water into subterranean wells, creating zones of high pressure that utilities can tap as "batteries" when other energy supplies fall.  Though it lags California in total capacity, Texas is set to add the most utility scale batteries in the country in 2024, but these can only store power for two to six hours — creating a niche for projects like Sage, which aim to store power for up to a day. In building out its projects, Sage benefited from that nearly-unanimous package of legislative reforms passed by the during the notably acrimonious 2023 session, which opened the way to operators like Taff — and offered a potential roadmap to other oil and gas states looking to set up geothermal industries of their own. In its campaign for those pivotal laws, the geothermal lobby benefited from a recent traumatic experience for Texas: the brutal, deadly and staggeringly expensive legacy of 2021’s Winter Storm Uri. In addition to resulting in hundreds of deaths from freezing temperatures and carbon monoxide poisoning from generators, the storm left tens of millions across the state without power for nearly a week and caused electricity prices in Texas’s spot markets to soar to an unheard-of $9,000 per megawatt hour — costing ratepayers an estimated $17 billion in overcharges, a court ruled in 2023. The total cost was even higher: an estimated $300 billion, higher than that of Hurricane Katrina, according to the American Society of Civil Engineers. That tragedy was weaponized by both sides in the state’s frenetic culture wars. Republicans blamed the wind industry, which had 27 percent of its turbines freeze, according to a report from the Federal Energy Regulatory Commission (FERC). Meanwhile, Democrats blamed the lack of weatherization in the natural gas industry, which FERC found had lost 58 percent of its generation or pipeline capacity during the storm — undercutting the "firm" or "dispatchable" supply of energy needed to avert blackouts.  As Republicans sought to restrict the state’s burgeoning renewables industry, geothermal threaded the needle — aided by its lobbyists' deep ties to the oil industry and the Republican establishment. The lobby pushed the message of “geothermal as firm, dispatchable, 24/7, on-off switch, clean,” Smitherman told The Hill. “And it just resonated with everyone.” Lobbyists were “playing offense on three bills,” Smitherman said. First, in S.B. 785, the industry tackled the question of who owns geothermal heat — the subterranean energy that future projects will want to tap for industrial use or to generate electricity. That was a thorny question, because Texas law divides up surface rights — which include rights to land and the groundwater beneath — and mineral rights, which govern commodities like oil and gas below the surface.  During the fracking boom, that division created ugly situations in which mineral-rights holders allowed drilling rigs to operate on — and pollute — lands that they didn’t live on, sometimes against the wishes of the people on the site.  In S.B.785, legislators agreed with the industry that heat is legally more like water than oil — which makes the process of exploration substantially easier. For operators like Sage, Taff said, “that means we go in and we just really have to have an agreement with a landowner,” rather than having to sign separate deals with the mineral rights holder and landowner. S.B. 786 clarified that the geothermal industry is regulated by the Texas Railroad Commission, the state’s confusingly-named oil and gas regulator — rather than a mix of the commission, the state environmental regulator and the state utility commission for different aspects of the industry.  And in S.B. 1210, the legislature overwhelmingly voted that the state's thousands of “orphaned wells” — inactive, non-producing oil and gas wells — can be converted to geothermal wells without an additional permit. (As The Texas Tribune reported, Sage used one of these for a test well in south Texas.) Finally, in what Smitherman called “a defensive play,” the lobby worked to ensure through H.B. 5 that geothermal energy was eligible for the same tax breaks as other forms of dispatchable power — a privilege that would otherwise have only been available to coal, nuclear and natural gas. Together, these laws mean that a geothermal startup now just has to talk to a single regulator and a single rights holder; can cut costs on drilling using an existing well; and can realize tax breaks previously available only to far more established forms of power generation. It can also take advantage of the state’s burgeoning startup scene and huge oil and gas workforce — a necessary ingredient in a sector that is built on exploring the subsurface and drilling holes. For oil and gas workers, geothermal offers its own appeal. Part of this is emotional: Taff told the Tribune about how she moved to geothermal after a decade of being pressured by her daughter to leave the “dark side” of oil and gas for renewables — and found that geothermal offered her a chance to use her downhole experience in a way that wind and solar would not. ”That redemption arc is really, really inspiring for oil and gas people,” said Jamie Beard of Project Innerspace, a nonprofit geothermal advocacy group. Involvement in the industry lets former oil and gas workers “feel like they can use their entire life's work for something that they're going to be respected for — and right now they are villainized for,” she said. But in a state — and an energy sector — where belief in climate change remains controversial, geothermal can also make a more prosaic pitch: a stable job after the rollercoaster of oilfield work. “Oil and gas is very feast and famine,” Joselyn Lai, the CEO of Bedrock Energy, told The HIll.  “It's good times — and then it's like everyone's unemployed for like six months. There's definitely this hope and belief that the clean energy future will be one where there's more consistent jobs, and that it's where growth is happening.” That pitch comes as automation and efficiency have cut oilfield jobs — and as many projections suggest that oil demand will peak this decade, even as production is currently at record levels. One Bedrock employee who had specialized in well completions — the process of inserting pipe and bringing out oil and gas — described being laid off from an oil company because his job could be done by a worker in South Asia at a tenth the price. By drilling so many wells and dialing in their efficiency so much, he said, “we drilled ourselves out of a job.” Now he helps Bedrock drill 1,000 foot wells into the stable temperature of the subsurface, which can be used to dump heat in the summer or retrieve warmth in the winter — potentially offering commercial real estate clients a way to cut their heating and air conditioning costs by two to four times. That kind of project exemplifies a main part of geothermal’s appeal: It is a consistent product, which despite being zero-carbon offers the kind of electricity that utilities are used to working with.  The industry also faces serious challenges — particularly when it comes to securing financing to roll out and develop prototypes. First-of-their-kind geothermal projects often struggle to get across what the startup industry calls the “valley of death” — the dangerous period when they have secured initial investment and are paying for operations and payroll but aren’t yet making any money. (All of the companies listed in this article are in this difficult zone.)  Despite the promise of geothermal, many potential corporate partners “want to be first to go fifth,” Bedrock investor Gabriel Scheer of Elemental Excelerator, a nonprofit investment firm focused on climate technologies.  But for those investors who take the risk, Scheer said, there is the upside of getting a jump on a new technology — and getting to shape the way it unfolds. And in Texas specifically, the geothermal industry has certain distinct advantages. First, the experience of Winter Storm Uri means state businesses may be more focused on securing reliable heat and electricity than other states. Geothermal also benefits not just from the need to buttress the large wind and solar fleet, but also from the trail that those industries have blazed in terms of innovative forms of financing. In particular, virtually every wind and solar project in the state is built after developers sign a “power purchase agreement” with potential customers — something that the geothermal industry can easily adapt, said Dennis Wamsted of the Institute for Energy Economics and Financial Analysis. In Texas, Wamsted said, “Geothermal has the ability to come in and say, ‘You guys are familiar with all these contracts? Here, we are doing exactly the same thing.” Beard, the industry advocate, argued that Texas offers a model for other fossil fuel-rich states — like North Dakota or Pennsylvania — that want to transition their own industries. She was one of more than a dozen coauthors of “The Future of Geothermal in Texas,” a landmark 2023 report by five state universities that helped establish the industry’s bonafides before that year’s legislative session.  In the next six months, her team intends to replicate that report in ten such states, including Oklahoma and Pennsylvania. “The idea is, if you go into a state that has a big, significant oil and gas industry and you catalyze geothermal —  you all of a sudden have a bipartisan solution,” she said. Geothermal, she conceded “has really struggled on a federal level, with things like permitting and incentives.” But if such a research and lobbying effort were replicated across “all the oil and gas states, all of a sudden you have a federal coalition. You have movement on the federal level, and that’s the eventual outcome of all of the state work.” A national boom in geothermal would offer significant climate benefits. And in a world where the past pollution from oil and gas production is already anticipated to cut mid-century incomes by nearly 20 percent — even with aggressive climate action — it also has notable economic appeal. But in her pitch to investors or clients, Lai told The Hill, she doesn’t make the environmental pitch — because she doesn’t need to. At the end of the day, she said, “it's about the financial benefits.”

With its nation-leading renewables fleet and oil and gas industry, Texas is poised to dominate what boosters hope will be America’s next great energy boom: a push to tap the heat of the subterranean earth for electricity and industry. That technology, known as geothermal energy, has demonstrated the rare ability to unite the state’s warring...

With its nation-leading renewables fleet and oil and gas industry, Texas is poised to dominate what boosters hope will be America’s next great energy boom: a push to tap the heat of the subterranean earth for electricity and industry.

That technology, known as geothermal energy, has demonstrated the rare ability to unite the state’s warring political camps — and is fueling a boom in startups that seek to take it national. 

While other forms of renewable energy lost ground during Texas's 2021 and 2023 legislative sessions before a legislature that combined a hard-right political bent with a focus on building more "dispatchable" power, the geothermal industry advanced. State lawmakers passed four key bills in 2023  that helped lay the foundation for a new generation of drilling — with just one vote against. 

In the 2023 session, "we didn't get put into the renewable bucket, we didn't really get put into the oil and gas bucket,” said Barry Smitherman, former Republican head of the state Railroad Commission and head of the Texas Geothermal Energy Alliance.

Instead, “we became this hybrid that was acceptable to people on both sides of the aisle"​

The regulatory clarity established by those bills  has laid the groundwork for a new generation of startups powered by the state’s urgent need for reliable electricity in the face of increasingly extreme weather, as well as a growing trickle of oil and gas veterans leaving an industry they see as plagued by boom-and-bust cycles. As of last year, Texas had 11 of the 27 total geothermal startups in the US.

On Wednesday, startup Bedrock Energy unveiled a new geothermal-powered heating and cooling system at a commercial real estate complex in Austin. Earlier this month, next-generation drilling company Quaise — which uses high powered radio waves to drill through hard rock — filed a permit with the state energy regulator to begin field testing its drills, years ahead of what industry insiders had thought was possible. Houston-based Fervo is building a 400-megawatt project in Utah. Military bases across the state are looking into geothermal as a potential source of secure electricity in an era of price spikes and cyberattacks.

And later this year, Sage Geosystems, a company founded by three former Shell executives, will begin using a fracked well as a means of storing renewable energy — which CEO Cindy Taff said will get the company most of the way towards the ultimate goal of commercially viable geothermal electricity.

The rise in geothermal startups comes alongside a broader surge in Texas renewable energy. Last month, solar generation eclipsed coal both in terms of power generation and market share. Texas also has more utility-scale wind and solar capacity than any other state, though it lags California when it comes to rooftop solar. 

The Sage project shows the conceptual benefits of geothermal energy to the Texas grid, which increasingly runs on wind and solar energy. When the sun is high, the wind is blowing and demand is low, Sage will pump water into subterranean wells, creating zones of high pressure that utilities can tap as "batteries" when other energy supplies fall. 

Though it lags California in total capacity, Texas is set to add the most utility scale batteries in the country in 2024, but these can only store power for two to six hours — creating a niche for projects like Sage, which aim to store power for up to a day.

In building out its projects, Sage benefited from that nearly-unanimous package of legislative reforms passed by the during the notably acrimonious 2023 session, which opened the way to operators like Taff — and offered a potential roadmap to other oil and gas states looking to set up geothermal industries of their own.

In its campaign for those pivotal laws, the geothermal lobby benefited from a recent traumatic experience for Texas: the brutal, deadly and staggeringly expensive legacy of 2021’s Winter Storm Uri.

In addition to resulting in hundreds of deaths from freezing temperatures and carbon monoxide poisoning from generators, the storm left tens of millions across the state without power for nearly a week and caused electricity prices in Texas’s spot markets to soar to an unheard-of $9,000 per megawatt hour — costing ratepayers an estimated $17 billion in overcharges, a court ruled in 2023.

The total cost was even higher: an estimated $300 billion, higher than that of Hurricane Katrina, according to the American Society of Civil Engineers.

That tragedy was weaponized by both sides in the state’s frenetic culture wars. Republicans blamed the wind industry, which had 27 percent of its turbines freeze, according to a report from the Federal Energy Regulatory Commission (FERC). Meanwhile, Democrats blamed the lack of weatherization in the natural gas industry, which FERC found had lost 58 percent of its generation or pipeline capacity during the storm — undercutting the "firm" or "dispatchable" supply of energy needed to avert blackouts. 

As Republicans sought to restrict the state’s burgeoning renewables industry, geothermal threaded the needle — aided by its lobbyists' deep ties to the oil industry and the Republican establishment.

The lobby pushed the message of “geothermal as firm, dispatchable, 24/7, on-off switch, clean,” Smitherman told The Hill. “And it just resonated with everyone.”

Lobbyists were “playing offense on three bills,” Smitherman said. First, in S.B. 785, the industry tackled the question of who owns geothermal heat — the subterranean energy that future projects will want to tap for industrial use or to generate electricity.

That was a thorny question, because Texas law divides up surface rights — which include rights to land and the groundwater beneath — and mineral rights, which govern commodities like oil and gas below the surface. 

During the fracking boom, that division created ugly situations in which mineral-rights holders allowed drilling rigs to operate on — and pollute — lands that they didn’t live on, sometimes against the wishes of the people on the site. 

In S.B.785, legislators agreed with the industry that heat is legally more like water than oil — which makes the process of exploration substantially easier. For operators like Sage, Taff said, “that means we go in and we just really have to have an agreement with a landowner,” rather than having to sign separate deals with the mineral rights holder and landowner.

S.B. 786 clarified that the geothermal industry is regulated by the Texas Railroad Commission, the state’s confusingly-named oil and gas regulator — rather than a mix of the commission, the state environmental regulator and the state utility commission for different aspects of the industry. 

And in S.B. 1210, the legislature overwhelmingly voted that the state's thousands of “orphaned wells” — inactive, non-producing oil and gas wells — can be converted to geothermal wells without an additional permit. (As The Texas Tribune reported, Sage used one of these for a test well in south Texas.)

Finally, in what Smitherman called “a defensive play,” the lobby worked to ensure through H.B. 5 that geothermal energy was eligible for the same tax breaks as other forms of dispatchable power — a privilege that would otherwise have only been available to coal, nuclear and natural gas.

Together, these laws mean that a geothermal startup now just has to talk to a single regulator and a single rights holder; can cut costs on drilling using an existing well; and can realize tax breaks previously available only to far more established forms of power generation.

It can also take advantage of the state’s burgeoning startup scene and huge oil and gas workforce — a necessary ingredient in a sector that is built on exploring the subsurface and drilling holes.

For oil and gas workers, geothermal offers its own appeal. Part of this is emotional: Taff told the Tribune about how she moved to geothermal after a decade of being pressured by her daughter to leave the “dark side” of oil and gas for renewables — and found that geothermal offered her a chance to use her downhole experience in a way that wind and solar would not.

”That redemption arc is really, really inspiring for oil and gas people,” said Jamie Beard of Project Innerspace, a nonprofit geothermal advocacy group. Involvement in the industry lets former oil and gas workers “feel like they can use their entire life's work for something that they're going to be respected for — and right now they are villainized for,” she said.

But in a state — and an energy sector — where belief in climate change remains controversial, geothermal can also make a more prosaic pitch: a stable job after the rollercoaster of oilfield work.

“Oil and gas is very feast and famine,” Joselyn Lai, the CEO of Bedrock Energy, told The HIll. 

“It's good times — and then it's like everyone's unemployed for like six months. There's definitely this hope and belief that the clean energy future will be one where there's more consistent jobs, and that it's where growth is happening.”

That pitch comes as automation and efficiency have cut oilfield jobs — and as many projections suggest that oil demand will peak this decade, even as production is currently at record levels.

One Bedrock employee who had specialized in well completions — the process of inserting pipe and bringing out oil and gas — described being laid off from an oil company because his job could be done by a worker in South Asia at a tenth the price.

By drilling so many wells and dialing in their efficiency so much, he said, “we drilled ourselves out of a job.” Now he helps Bedrock drill 1,000 foot wells into the stable temperature of the subsurface, which can be used to dump heat in the summer or retrieve warmth in the winter — potentially offering commercial real estate clients a way to cut their heating and air conditioning costs by two to four times.

That kind of project exemplifies a main part of geothermal’s appeal: It is a consistent product, which despite being zero-carbon offers the kind of electricity that utilities are used to working with. 

The industry also faces serious challenges — particularly when it comes to securing financing to roll out and develop prototypes. First-of-their-kind geothermal projects often struggle to get across what the startup industry calls the “valley of death” — the dangerous period when they have secured initial investment and are paying for operations and payroll but aren’t yet making any money. (All of the companies listed in this article are in this difficult zone.) 

Despite the promise of geothermal, many potential corporate partners “want to be first to go fifth,” Bedrock investor Gabriel Scheer of Elemental Excelerator, a nonprofit investment firm focused on climate technologies. 

But for those investors who take the risk, Scheer said, there is the upside of getting a jump on a new technology — and getting to shape the way it unfolds.

And in Texas specifically, the geothermal industry has certain distinct advantages. First, the experience of Winter Storm Uri means state businesses may be more focused on securing reliable heat and electricity than other states.

Geothermal also benefits not just from the need to buttress the large wind and solar fleet, but also from the trail that those industries have blazed in terms of innovative forms of financing.

In particular, virtually every wind and solar project in the state is built after developers sign a “power purchase agreement” with potential customers — something that the geothermal industry can easily adapt, said Dennis Wamsted of the Institute for Energy Economics and Financial Analysis.

In Texas, Wamsted said, “Geothermal has the ability to come in and say, ‘You guys are familiar with all these contracts? Here, we are doing exactly the same thing.”

Beard, the industry advocate, argued that Texas offers a model for other fossil fuel-rich states — like North Dakota or Pennsylvania — that want to transition their own industries. She was one of more than a dozen coauthors of “The Future of Geothermal in Texas,” a landmark 2023 report by five state universities that helped establish the industry’s bonafides before that year’s legislative session. 

In the next six months, her team intends to replicate that report in ten such states, including Oklahoma and Pennsylvania. “The idea is, if you go into a state that has a big, significant oil and gas industry and you catalyze geothermal —  you all of a sudden have a bipartisan solution,” she said.

Geothermal, she conceded “has really struggled on a federal level, with things like permitting and incentives.”

But if such a research and lobbying effort were replicated across “all the oil and gas states, all of a sudden you have a federal coalition. You have movement on the federal level, and that’s the eventual outcome of all of the state work.”

A national boom in geothermal would offer significant climate benefits. And in a world where the past pollution from oil and gas production is already anticipated to cut mid-century incomes by nearly 20 percent — even with aggressive climate action — it also has notable economic appeal.

But in her pitch to investors or clients, Lai told The Hill, she doesn’t make the environmental pitch — because she doesn’t need to. At the end of the day, she said, “it's about the financial benefits.”

Read the full story here.
Photos courtesy of

Designing a new way to optimize complex coordinated systems

Using diagrams to represent interactions in multipart systems can provide a faster way to design software improvements.

Coordinating complicated interactive systems, whether it’s the different modes of transportation in a city or the various components that must work together to make an effective and efficient robot, is an increasingly important subject for software designers to tackle. Now, researchers at MIT have developed an entirely new way of approaching these complex problems, using simple diagrams as a tool to reveal better approaches to software optimization in deep-learning models.They say the new method makes addressing these complex tasks so simple that it can be reduced to a drawing that would fit on the back of a napkin.The new approach is described in the journal Transactions of Machine Learning Research, in a paper by incoming doctoral student Vincent Abbott and Professor Gioele Zardini of MIT’s Laboratory for Information and Decision Systems (LIDS).“We designed a new language to talk about these new systems,” Zardini says. This new diagram-based “language” is heavily based on something called category theory, he explains.It all has to do with designing the underlying architecture of computer algorithms — the programs that will actually end up sensing and controlling the various different parts of the system that’s being optimized. “The components are different pieces of an algorithm, and they have to talk to each other, exchange information, but also account for energy usage, memory consumption, and so on.” Such optimizations are notoriously difficult because each change in one part of the system can in turn cause changes in other parts, which can further affect other parts, and so on.The researchers decided to focus on the particular class of deep-learning algorithms, which are currently a hot topic of research. Deep learning is the basis of the large artificial intelligence models, including large language models such as ChatGPT and image-generation models such as Midjourney. These models manipulate data by a “deep” series of matrix multiplications interspersed with other operations. The numbers within matrices are parameters, and are updated during long training runs, allowing for complex patterns to be found. Models consist of billions of parameters, making computation expensive, and hence improved resource usage and optimization invaluable.Diagrams can represent details of the parallelized operations that deep-learning models consist of, revealing the relationships between algorithms and the parallelized graphics processing unit (GPU) hardware they run on, supplied by companies such as NVIDIA. “I’m very excited about this,” says Zardini, because “we seem to have found a language that very nicely describes deep learning algorithms, explicitly representing all the important things, which is the operators you use,” for example the energy consumption, the memory allocation, and any other parameter that you’re trying to optimize for.Much of the progress within deep learning has stemmed from resource efficiency optimizations. The latest DeepSeek model showed that a small team can compete with top models from OpenAI and other major labs by focusing on resource efficiency and the relationship between software and hardware. Typically, in deriving these optimizations, he says, “people need a lot of trial and error to discover new architectures.” For example, a widely used optimization program called FlashAttention took more than four years to develop, he says. But with the new framework they developed, “we can really approach this problem in a more formal way.” And all of this is represented visually in a precisely defined graphical language.But the methods that have been used to find these improvements “are very limited,” he says. “I think this shows that there’s a major gap, in that we don’t have a formal systematic method of relating an algorithm to either its optimal execution, or even really understanding how many resources it will take to run.” But now, with the new diagram-based method they devised, such a system exists.Category theory, which underlies this approach, is a way of mathematically describing the different components of a system and how they interact in a generalized, abstract manner. Different perspectives can be related. For example, mathematical formulas can be related to algorithms that implement them and use resources, or descriptions of systems can be related to robust “monoidal string diagrams.” These visualizations allow you to directly play around and experiment with how the different parts connect and interact. What they developed, he says, amounts to “string diagrams on steroids,” which incorporates many more graphical conventions and many more properties.“Category theory can be thought of as the mathematics of abstraction and composition,” Abbott says. “Any compositional system can be described using category theory, and the relationship between compositional systems can then also be studied.” Algebraic rules that are typically associated with functions can also be represented as diagrams, he says. “Then, a lot of the visual tricks we can do with diagrams, we can relate to algebraic tricks and functions. So, it creates this correspondence between these different systems.”As a result, he says, “this solves a very important problem, which is that we have these deep-learning algorithms, but they’re not clearly understood as mathematical models.” But by representing them as diagrams, it becomes possible to approach them formally and systematically, he says.One thing this enables is a clear visual understanding of the way parallel real-world processes can be represented by parallel processing in multicore computer GPUs. “In this way,” Abbott says, “diagrams can both represent a function, and then reveal how to optimally execute it on a GPU.”The “attention” algorithm is used by deep-learning algorithms that require general, contextual information, and is a key phase of the serialized blocks that constitute large language models such as ChatGPT. FlashAttention is an optimization that took years to develop, but resulted in a sixfold improvement in the speed of attention algorithms.Applying their method to the well-established FlashAttention algorithm, Zardini says that “here we are able to derive it, literally, on a napkin.” He then adds, “OK, maybe it’s a large napkin.” But to drive home the point about how much their new approach can simplify dealing with these complex algorithms, they titled their formal research paper on the work “FlashAttention on a Napkin.”This method, Abbott says, “allows for optimization to be really quickly derived, in contrast to prevailing methods.” While they initially applied this approach to the already existing FlashAttention algorithm, thus verifying its effectiveness, “we hope to now use this language to automate the detection of improvements,” says Zardini, who in addition to being a principal investigator in LIDS, is the Rudge and Nancy Allen Assistant Professor of Civil and Environmental Engineering, and an affiliate faculty with the Institute for Data, Systems, and Society.The plan is that ultimately, he says, they will develop the software to the point that “the researcher uploads their code, and with the new algorithm you automatically detect what can be improved, what can be optimized, and you return an optimized version of the algorithm to the user.”In addition to automating algorithm optimization, Zardini notes that a robust analysis of how deep-learning algorithms relate to hardware resource usage allows for systematic co-design of hardware and software. This line of work integrates with Zardini’s focus on categorical co-design, which uses the tools of category theory to simultaneously optimize various components of engineered systems.Abbott says that “this whole field of optimized deep learning models, I believe, is quite critically unaddressed, and that’s why these diagrams are so exciting. They open the doors to a systematic approach to this problem.”“I’m very impressed by the quality of this research. ... The new approach to diagramming deep-learning algorithms used by this paper could be a very significant step,” says Jeremy Howard, founder and CEO of Answers.ai, who was not associated with this work. “This paper is the first time I’ve seen such a notation used to deeply analyze the performance of a deep-learning algorithm on real-world hardware. ... The next step will be to see whether real-world performance gains can be achieved.”“This is a beautifully executed piece of theoretical research, which also aims for high accessibility to uninitiated readers — a trait rarely seen in papers of this kind,” says Petar Velickovic, a senior research scientist at Google DeepMind and a lecturer at Cambridge University, who was not associated with this work. These researchers, he says, “are clearly excellent communicators, and I cannot wait to see what they come up with next!”The new diagram-based language, having been posted online, has already attracted great attention and interest from software developers. A reviewer from Abbott’s prior paper introducing the diagrams noted that “The proposed neural circuit diagrams look great from an artistic standpoint (as far as I am able to judge this).” “It’s technical research, but it’s also flashy!” Zardini says.

The UK Says at an Energy Summit That Green Power Will Boost Security, as the US Differs

Britain has announced a major investment in wind power as it hosts an international summit on energy security

LONDON (AP) — Britain announced a major investment in wind power Thursday as it hosted an international summit on energy security — with Europe and the United States at odds over whether to cut their reliance on fossil fuels.U.K. Prime Minister Keir Starmer said the government will invest 300 million pounds ($400 million) in boosting Britain’s capacity to manufacture components for the offshore wind industry, a move it hopes will encourage private investment in the U.K.’s renewable energy sector.“As long as energy can be weaponized against us, our countries and our citizens are vulnerable and exposed,” U.K. Energy Secretary Ed Miliband told delegates.He said “low-carbon power” was a route to energy security as well as a way to slow climate change.Britain now gets more than half its electricity from renewable sources such as wind and solar power, and the rest from natural gas and nuclear energy. It aims to generate all the U.K.’s energy from renewable sources by 2030.Tommy Joyce, U.S. acting assistant secretary of energy for international affairs, told participants they should be “honest about the world’s growing energy needs, not focused on net-zero politics.”He called policies that push for clean power over fossil fuels "harmful and dangerous," and claimed building wind turbines requires "concessions to or coercion from China" because it supplies necessary rare minerals.Hosted by the British government and the International Energy Agency, the two-day summit brings together government ministers from 60 countries, senior European Union officials, energy sector CEOs, heads of international organizations and nonprofits to assess risks to the global energy system and figure out solutions. Associated Press writer Jennifer McDermott contributed to this story. ___The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See - Feb. 2025

Steelhead trout rescued from Palisades fire spawn in their new Santa Barbara County home

After a stressful journey out of the burn zone in Malibu, the endangered trout have spawned in their adopted stream in Santa Barbara County.

Wildlife officials feared critically endangered steelhead trout rescued from the Palisades fire burn scar might not be up for spawning after all they’d been through over the last few months.After their watershed in the Santa Monica Mountains was scorched in January, the fish were stunned with electricity, scooped up in buckets, trucked to a hatchery, fed unfamiliar food and then moved to a different creek. It was all part of a liberation effort pulled off in the nick of time. “This whole thing is just a very stressful and traumatic event, and I’m happy that we didn’t really kill many fish,” said Kyle Evans, an environmental program manager for the California Department of Fish and Wildlife, which led the rescue. “But I was concerned that I might have just disrupted this whole months-long process of getting ready to spawn.” Steelhead were once abundant in Southern California, but their numbers plummeted amid coastal development and overfishing. A distinct Southern California population is listed as endangered at the state and federal level. (Alex Vejar / California Department of Fish and Wildlife) But this month spawn they did.It’s believed that there are now more than 100 baby trout swishing around their new digs in Arroyo Hondo Creek in Santa Barbara County.Their presence is a triumph — for the species and for their adopted home.However, more fish require more suitable habitat, which is lacking in Southern California — in part due to drought and the increased frequency of devastating wildfires. Steelhead trout are the same species as rainbow trout, but they have different lifestyles. Steelheads migrate to the ocean and return to their natal streams to spawn, while rainbows spend their lives in freshwater.Steelhead were once abundant in Southern California, but their numbers plummeted amid coastal development and overfishing. A distinct Southern California population is listed as endangered at the state and federal level.The young fish sighted this month mark the next generation of what was the last population of steelhead in the Santa Monica Mountains, a range that stretches from the Hollywood Hills to Point Mugu in Ventura County. They also represent the return of a species to a watershed that itself was devastated by a fire four years ago, but has since recovered. It’s believed that there are now more than 100 baby trout swishing around their new digs in Arroyo Hondo Creek in Santa Barbara County. (Kyle Kusa / Land Trust for Santa Barbara County) The Alisal blaze torched roughly 95% of the Arroyo Hondo Preserve located west of Santa Barbara, and subsequent debris flows choked the creek of the same name that housed steelhead. All the fish perished, according to Meredith Hendricks, executive director of the Land Trust for Santa Barbara County, a nonprofit organization that owns and manages the preserve.“To be able to … offer space for these fish to be transplanted to — when we ourselves had experienced a similar situation but lost our fish — it was just a really big deal,” Hendricks said. Arroyo Hondo Creek bears similarities to the trout’s native Topanga Creek; they are both coastal streams of roughly the same size. And it has a bonus feature: a state-funded fish passage constructed under Highway 101 in 2008, which improved fish movement between the stream and the ocean.Spawning is a biologically and energetically demanding endeavor for steelhead, and the process likely began in December or earlier, according to Evans.That means it was already underway when 271 steelhead were evacuated in January from Topanga Creek, a biodiversity hot spot located in Malibu that was badly damaged by the Palisades fire.It continued when they were hauled about 50 miles north to a hatchery in Fillmore, where they hung out until 266 of them made it to Arroyo Hondo the following month.State wildlife personnel regularly surveyed the fish in their new digs but didn’t see the spawning nests, which can be missed. VIDEO | 00:16 Steelhead trout in Arroyo Hondo Creek in Santa Barbara County Steelhead trout in Arroyo Hondo Creek in Santa Barbara County. (Calif. Dept. of Fish & Game) Then, on April 7, Evans got a text message from the Land Trust’s land programs director, Leslie Chan, with a video that appeared to show a freshly hatched young-of-the-year — the wonky name for fish born during the steelheads’ sole annual spawn.The following day, Evans’ team was dispatched to the creek and confirmed the discovery. They tallied about 100 of the newly hatched fish. The young trout span roughly one inch and, as Evans put it, aren’t too bright. They hang out in the shallows and don’t bolt from predators.“They’re kind of just happy to be alive, and they’re not really trying to hide,” he said.By the end of summer, Evans estimates two-thirds will die off. But the survivors are enough to keep the population charging onward. Evans hopes that in a few years, there will be three to four times the number of fish that initially moved in.The plan is to eventually relocate at least some back to their native home of Topanga Creek.Right now, Topanga “looks pretty bad,” Evans said. The Palisades fire stripped the surrounding hillsides of vegetation, paving the way for dirt, ash and other material to pour into the waterway. Another endangered fish, northern tidewater gobies, were rescued from the same watershed shortly before the steelhead were liberated. Within two days of the trouts’ removal, the first storm of the season arrived, likely burying the remaining fish in a muddy slurry. Citizen scientists Bernard Yin, center, and Rebecca Ramirez, right, join government agency staffers in rescuing federally endangered fish in the Topanga Lagoon in Malibu on Jan. 17. (Christina House / Los Angeles Times) Evans expects it will be about four years before Topanga Creek is ready to support steelhead again, based on his experience observing streams recover after the Thomas, Woolsey, Alisal and other fires. There’s also discussion about moving around steelhead to create backup populations should calamity befall one, as well as boost genetic diversity of the rare fish.For example, some of the steelhead saved from Topanga could be moved to Malibu Creek, another stream in the Santa Monica Mountains that empties into Santa Monica Bay. There are efforts underway to remove the 100-foot Rindge Dam in Malibu Creek to open up more habitat for the fish.“As we saw, if you have one population in the Santa Monica Mountains and a fire happens, you could just lose it forever,” Evans said. “So having fish in multiple areas is the kind of way to defend against that.”With the Topanga Creek steelhead biding their time up north, it’s believed there are none currently inhabiting the Santa Monicas. Habitat restoration is key for the species’ survival, according to Evans, who advocates for directing funding to such efforts, including soon-to-come-online money from Proposition 4, a $10-billion bond measure to finance water, clean energy and other environmental projects.“It doesn’t matter how many fish you have, or if you’re growing them in a hatchery, or what you’re doing,” he said. “If they can’t be supported on the landscape, then there’s no point.”Some trout will end up making their temporary lodging permanent, according to Hendricks, of the Land Trust. Arroyo Hondo is a long creek with plenty of nooks and crannies for trout to hide in. So when it comes time to bring the steelhead home, she said, “I’m sure some will get left behind.”

Chicago Teachers Union secures clean energy wins in new contract

The Chicago Teachers Union expects its new, hard-fought contract to help drive clean energy investments and train the next generation of clean energy workers, even as the Trump administration attacks such priorities. The contract approved by 97% of union members this month represents the first time the union has…

The Chicago Teachers Union expects its new, hard-fought contract to help drive clean energy investments and train the next generation of clean energy workers, even as the Trump administration attacks such priorities. The contract approved by 97% of union members this month represents the first time the union has bargained with school officials specifically around climate change and energy, said union Vice President Jackson Potter. The deal still needs to be approved by the Chicago Board of Education. If approved, the contract will result in new programs that prepare students for clean energy jobs, developed in collaboration with local labor unions. It mandates that district officials work with the teachers union to seek funding for clean energy investments and update a climate action plan by 2026. And it calls for installing heat pumps and outfitting 30 schools with solar panels — if funding can be secured. During almost a year of contentious negotiations, the more than 25,000-member union had also demanded paid climate-educator positions, an all-electric school bus fleet, and that all newly constructed schools be carbon-free. While those provisions did not end up in the final agreement, leaders say the four-year contract is a ​“transformative” victory that sets the stage for more ambitious demands next time. “This contract is setting the floor of what we hope we can accomplish,” said Lauren Bianchi, who taught social studies at George Washington High School on the city’s South Side for six years before becoming green schools organizer for the union. ​“It shows we can win on climate, even despite Trump.” The climate-related provisions are part of what the Chicago Teachers Union and an increasing number of unions nationwide refer to as ​“common good” demands, meant to benefit not only their members in the workplace but the entire community. In this and its 2019 contract, the Chicago union also won ​“common good” items such as protections for immigrant students and teachers, and affordable housing–related measures. The new contract also guarantees teachers academic freedom at a time when the federal government is trying to limit schools from teaching materials related to diversity, equity, and inclusion. “Black history, Indigenous history, climate science — that’s protected instruction now,” said Potter. Chicago Public Schools did not respond to emailed questions for this story, except to forward a press release that did not mention clean energy provisions. Training Chicago’s students for clean energy jobs The union crafted its proposals based on discussions with three environmental and community organizations, Bianchi said — the Southeast Environmental Task Force, People for Community Recovery, and ONE Northside. The Southeast Environmental Task Force led the successful fight to ban new petcoke storage in Chicago, and the group’s co-executive director Olga Bautista is also vice president of the 21-member school board. People for Community Recovery was founded by Hazel Johnson, who is often known as ​“the mother of the environmental justice movement.” And ONE Northside emphasizes the link between clean energy and affordable housing. Clean energy job training was a priority for all three of the organizations, Potter said. Under the contract, the union and district officials will work with other labor unions to create pre-apprenticeship programs for students, which are crucial to entering the union-dominated building trades to install solar, do energy-efficiency overhauls, and electrify homes with heat pumps and other technology. The contract demands the district create one specific new clean energy jobs pathway program during each year of the four-year contract. It also mandates renovating schools for energy efficiency and installing modern HVAC systems, and orders the school district to work with trade unions to create opportunities for Chicago Public Schools students and graduates to be hired for such work. “The people in the community have identified jobs and economic justice as being essential for environmental justice,” said Bianchi. ​“I’ve mostly taught juniors and seniors; a lot expressed frustration that college is not their plan. They wish they could learn job skills to enter a trade.” Chicago schools progress on solar, energy efficiency, and electrification Installing solar could help the district meet its clean energy goals, which include sourcing 100% of its electricity from renewables by this year. The district has invested more than $6 million in energy efficiency and efficient lighting since 2018, and cut its carbon dioxide emissions by more than 27,000 metric tons, school district spokesperson Evan Moore told Canary Media last fall as contract negotiations were proceeding. The schools are eligible for subsidized solar panels under the state Illinois Shines program, and they can tap the federal 30% investment tax credit for solar arrays, with a new direct-pay option tailored to tax-exempt organizations like schools.

Costa Rica Proposes Strict Penalties for Illegal National Park Entries

Costa Rica is cracking down on illegal entries into its national parks and protected areas, citing dangers to visitors and environmental harm. Franz Tattenbach, Minister of Environment and Energy (MINAE), has called on lawmakers to approve a bill imposing fines of up to ¢2.3 million (approximately $4,400) on individuals and tour operators who access these […] The post Costa Rica Proposes Strict Penalties for Illegal National Park Entries appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Costa Rica is cracking down on illegal entries into its national parks and protected areas, citing dangers to visitors and environmental harm. Franz Tattenbach, Minister of Environment and Energy (MINAE), has called on lawmakers to approve a bill imposing fines of up to ¢2.3 million (approximately $4,400) on individuals and tour operators who access these areas without authorization. Over 500 unauthorized entries into Costa Rica’s 30 national parks and reserves, have been reported so far this year. High-risk areas like Poás, Turrialba, Rincón de la Vieja, and Arenal volcanoes are frequent targets, where illegal tours bypass safety protocols. Unscrupulous operators promote these “exclusive” experiences on social media, often lacking insurance, safety equipment, or trained guides. “These operators abandon clients if intercepted by authorities, leaving them vulnerable in hazardous areas,” Tattenbach said. Poás Volcano National Park, closed since March 26 due to seismic activity and ash emissions, remains a hotspot for illegal tours. The proposed bill, under discussion by MINAE and the National System of Conservation Areas (SINAC), would introduce fines ranging from ¢1.3 million to ¢2.3 million ($2,500 to $4,400) for unauthorized entry, targeting both operators and participants. If a rescue operation is required, involving the Costa Rican Red Cross or MINAE personnel, an additional fine of ¢2.3 million ($4,400) could be imposed. Current laws penalize illegal entry under Article 58 of Forestry Law 7575, with three months to three years in prison, but enforcement is inconsistent. The new bill aims to strengthen deterrence. “These hikes involve steep slopes, toxic gases, and the risk of volcanic eruptions, which can be fatal,” Tattenbach warned, citing the 2017 Poás eruption that closed the park for over a year. Illegal entries also threaten Costa Rica’s biodiversity, which includes 5% of the world’s species. Unauthorized trails disrupt ecosystems and increase risks of poaching, according to Jorge Mario Rodríguez, Vice Minister of Environment. The Volcanological and Seismological Observatory of Costa Rica (OVSICORI) monitors volcanic activity to inform park closures, but illegal tours undermine these safety measures. Increased Surveillance SINAC, the Costa Rican Fire Department, Red Cross, and Police Force will intensify surveillance going forward, targeting high-risk national parks and roadways to prevent unauthorized access, wildlife extraction, hunting, and trade in protected flora and fauna. “These operations safeguard our natural heritage and ensure visitor safety,” Tattenbach said. SINAC’s year-round efforts have intercepted numerous illegal tours in 2025. Visiting Parks Safely: MINAE and SINAC urge visitors to use authorized operators and purchase tickets via the SINAC website or park entrances. Guided tours, available through platforms like Viator or Get Your Guide, offer safe experiences in parks like Manuel Antonio or Corcovado. Tourists should check park statuses before planning visits, as closures due to volcanic activity or weather are common. “Respecting regulations protects both you and Costa Rica’s natural treasures,” Rodríguez said. Preserving Ecotourism: As the proposed bill awaits Legislative Assembly review, MINAE urges compliance to maintain Costa Rica’s status as a global conservation leader. For updates on the bill or park regulations, visit MINAE’s Website The post Costa Rica Proposes Strict Penalties for Illegal National Park Entries appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

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