Nuclear fusion breakthrough: Scientists generate more power than used to create reaction
On Tuesday, the head of the Department of Energy and other federal scientific leaders announced that a fusion reaction run at the Lawrence Livermore National Laboratory in California achieved net energy, meaning the reaction generated more energy than was put in to initiate the reaction. It is the first time humankind has achieved this landmark.
Fusion is the way that the sun makes power, but recreating a useful fusion reaction here on earth has eluded scientists for decades. Achieving net positive energy paves the way for fusion to move from a lab science to a usable energy source, although large scale commercialization of fusion could still be decades away.
Fusion is particularly attractive given the increasing urgency of climate change because if it can be commercialized at scale, it produces no carbon emissions, nor does it produce the long-lasting nuclear waste associated with nuclear fission, which is the type of nuclear energy used to make energy today.
The National Ignition Facility target chamber at the Lawrence Livermore National Laboratory is where scientists shoot lasers and watch and measure what happens when those lasers collide on a fuel source. Temperatures of 100 million degrees and pressures extreme enough to compress a target up to 100 times the density of lead are created in this facility.
Photo by Damien Jemison/ Lawrence Livermore National Laboratory
“Monday, December 5, 2022 was an important day in science,” Jill Hruby, the National Nuclear Security Administration Administrator, said at a press conference announcing the news on Tuesday in Washington D.C. “Reaching ignition in a controlled fusion experiment is an achievement that has come after more than 60 years of global research, development, engineering and experimentation.”
Reaching ignition means the fusion experiment produced more energy from fusion than the laser energy that used to drive the reaction. Since the experiment, the team has been analyzing data to be able to make this official announcement.
“This is important. Earlier results were records, but not yet producing more energy out than was put in,” Andrew Holland, the CEO of the industry’s trade group, the Fusion Industry Association, told CNBC. “For the first time on Earth, scientists have confirmed a fusion energy experiment released more power than it takes to initiate, proving the physical basis for fusion energy. This will lead fusion to be a safe and sustainable energy source in the near future.”
In the experiment on Dec. 5, about two megajoules (a unit of energy) went into the reaction and about three megajoules came out, said Marvin Adams, Deputy Administrator for Defense Programs at the National Nuclear Security Administration. “A gain of 1.5,” Adams said.
For the experiment, super high powered lasers are all directed at a very tiny fuel target at the National Ignition Facility at the Lawrence Livermore National Laboratory. “During experiments, 192 high energy lasers converge on a target about the size of a peppercorn heating a capsule of deuterium and tritium to over 3 million degrees Celsius and briefly simulating the conditions of a star,” Hruby said.
The main mission of the National Lab is studying nuclear power for use in national defense, and this nuclear fusion research is part of an effort established in 1996 by then President Clinton to maintain confidence in the safety of nuclear weapons stockpiles without full-scale nuclear testing.
But this discovery has massive implications for clean energy, too. In addition to the national security work, “we have taken the first tentative steps towards a clean energy source that could revolutionize the world,” Hruby said.
While this scientific breakthrough that is being celebrated at the highest levels of government, it will be many years before fusion power plants are likely to provide clean abundant energy.
“This is one igniting capsule, one time. And to realize commercial fusion energy, you have to do many things. You have to be able to produce many, many fusion ignition events per minute,” Kim Budil, the director of the Lawrence Livermore Lab, said on Tuesday.
“You have to have a robust system of drivers to enable that. So, you know, probably decades. Not six decades, I don’t think. Not five decades, which is what we used to say. I think it’s moving into the foreground and probably, with concerted effort and investment, a few decades of research on the underlying technologies could put us in a position to build a power plant.”
Omar A. Hurricane, Chief Scientist for the Inertial Confinement Fusion Program at Lawrence Livermore, explained, “What remains to be done from here is largely engineering, of increasing the laser energy efficiency and increasing the target energy gain with further target optimizations.”
Hurricane added, “This new result does indeed bring commercial fusion closer, as it demonstrates that there are no fundamental physics obstacles. It is starting to feel like we are entering the ‘Fusion Age.'”
One step forward in the ‘Fusion Age’
Interest in fusion has increased dramatically in recent years as concerns about climate change and energy security have become more acute.
More than 90 nuclear power reactors currently operate in the United States, but those nuclear reactors employ nuclear fission, which is when a neutron smashes into a larger atom, causing it to split into two smaller atoms and releasing a lot of energy. Nuclear fission reactions do not release any carbon dioxide emissions and therefore are considered clean energy, according to the U.S. Department of Energy.
The United States got approximately 19 percent of its utility-scale electricity generation from those nuclear power plants in 2021, according to the U.S. Energy Information Administration, and the energy from nuclear fission reactors represents half of the clean power generated in the United States, according to the Department of Energy.
However, those reactors generate long-lasting nuclear radioactive waste, and most countries, including the United States, currently have no long-term storage facilities for that waste. Efforts to build a permanent, underground geologic storage facility for nuclear waste have thus far been stymied in the United States.
Fusion happens when two atoms slam together to form a heavier atom, releasing huge amounts of energy without generating carbon dioxide emissions or long-lasting nuclear waste. But it’s proven extremely challenging to sustain a fusion reaction here on earth, and scientists have been trying for decades. In particular, it requires massive amounts of energy to generate fusion on reactions, and until this experiment, nobody had demonstrated the ability to get more energy out of the reaction than it takes to power it.
“Scientists have struggled to show that fusion can release more energy out than is put in since the 1950s,” plasma physicist Arthur Turrell told CNBC.
“During those decades, every time anyone has asked for funding for developing fusion power, the response has always been ‘first, you must show that it works in principle,'” said Turrell, who is also the author of The Star Builders. “That is, you must show that a fusion experiment can produce more energy than it uses. The researchers at Lawrence Livermore have done this for the first time ever.”
Fusion is already a hot space for climate and energy investors — so far, investors have poured almost $5 billion in investment into private fusion energy startups, according to the Fusion Industry Association, and more than half of that has been since since the second quarter of 2021.
“Everyone in the laser fusion (or inertial confinement fusion) community has been focused on getting to more energy out than in on a single experiment, because that is the key to showing the proof of principle and unlocking further investment and interest,” Turrell told CNBC.
Indeed, the private fusion industry is seeing this as a win.
“Now, the privately funded fusion industry will take the next steps, turning experimental results like this into a viable source of clean, safe energy,” Holland told CNBC. “In short, this will show the world that fusion is not science fiction: it will soon be a viable source of energy. Of course there are still many steps between these experimental results and fusion power plants, but this is an important milestone that brings us closer to the day when fusion will provide the world with clean, safe, and abundant energy.”
Apple CEO Tim Cook (C) joins customers during Apple’s iPhone 16 launch in New York on September 20, 2024.
Timothy A. Clary | Afp | Getty Images
Apple’s second-largest division after the iPhone has turned into a $100 billion a year business that Wall Street loves.
In Apple’s earnings report on Thursday, the company said it reached just under $25 billion in services revenue, an all-time high for the category, and 12% growth on an annual basis.
“It’s an important milestone,” Apple CFO Luca Maestri said on a call with analysts. “We’ve got to a run rate of $100 billion. You look back just a few years ago and the the growth has been phenomenal.”
Apple first broke out its services revenue in the December quarter of 2014. At the time, it was $4.8 billion.
Apple’s services unit has become a critical part of Apple’s appeal to investors over the past decade. Its gross margin was 74% in the September quarter compared to Apple’s overall margin of 46.2%.
Services contains a wide range of different offerings. According to the company’s SEC filings, it includes advertising, search licensing revenue from Google, warranties called AppleCare, cloud subscription services such as iCloud, content subscriptions such as the company’s Apple TV+ service, and payments from Apple Pay and AppleCare.
On a January 2016 earnings call, when the reporting segment was relatively new, Apple CEO Tim Cook told investors to pay attention.
“I do think that the assets that we have in this area are huge, and I do think that it’s probably something that the investment community would want to and should focus more on,” Cook said.
Over the years, Apple has compared its services business to the size of Fortune 500 companies, which are ranked by sales, to give a sense of its scale. After Thursday, Apple’s services business alone, based on its most recent run rate, would land around 40th on the Fortune 500, topping Morgan Stanley and Johnson & Johnson.
Services appeals to investors because many of the subscriptions contained in it are billed on a recurring basis. That can be more reliably modeled than hardware sales, which will increase or decrease based on a given iPhone model’s demand.
“Yes, the the recurring portion is growing faster than the transactional one,” Maestri said on Thursday.
Apple’s fourth-quarter results beat Wall Street expectations for revenue and earnings on Thursday, but net income slumped after a one-time charge as part of a tax decision in Europe. The stock fell as much as 2% in extended trading.
Apple boasts to investors that its sales from Services will grow alongside its installed base. After someone buys an iPhone, they’re likely to sign up for Apple’s subscriptions, use Safari to search Google, or buy an extended warranty.
Apple also cites a “subscription” figure that includes both its first-party services, such as Apple TV+ subscriptions, and users who sign up to be billed by an App Store app on a recurring basis.
The company said the installed base and subscriptions hit all-time-highs, but didn’t give updated figures. Apple said it had 2.2 billion active devices in February, and in August said it had topped 1 billion paid subscriptions.
Still, Apple faces questions about how long its services business can continue growing at such a rapid rate. Between 2016 and 2021, the unit sported significantly higher growth, reaching 27.3% at the end of that stretch.
In fiscal 2023, services growth dropped to 9.1% for the year, before recovering to about 13% the next year. Apple told investors that it expected services growth in the December quarter to be about what it was in fiscal 2024.
Cook was asked on Thursday what Apple could do to make some of its services and its Apple One subscription bundle grow faster.
“There’s lots of customers to try to convince to take advantage of it,” Cook said. “We’re going to continue investing in the services and adding new features. Whether it’s News+ or Music or Arcade, that’s what we’re going to do.”
WATCH: Apple has a big leg up in AI
Amazon CEO, Andy Jassy speaking with CNBC’s Jim Cramer on Mad Money in Seattle, WA. on Dec. 6th, 2023.
CNBC
Amazon CEO Andy Jassy is trying to reassure investors who may be worried about the future payoff of the company’s massive investments in generative artificial intelligence.
On a conference call with analysts following the company’s third-quarter earnings report on Thursday, Jassy pointed to the success of Amazon’s cloud computing business, Amazon Web Services, which has become a crucial profit engine despite the extreme costs associated with building data centers.
“I think we’ve proven over time that we can drive enough operating income and free cash flow to make this a very successful return on invested capital business,” Jassy said. “We expect the same thing will happen here with generative AI.”
Amazon spent $22.6 billion on property and equipment during the quarter, up 81% from the year before. Jassy said Amazon plans to spend $75 billion on capex in 2024 and expects an even higher number in 2025.
The jump in spending is primarily being driven by generative AI investments, Jassy said. The company is rushing to invest in data centers, networking gear and hardware to meet vast demand for the technology, which has exploded in popularity since OpenAI released its ChatGPT assistant almost two years ago.
“It is a really unusually large, maybe once-in-a-lifetime type of opportunity,” Jassy said. “And I think our customers, the business and our shareholders will feel good about this long term that we’re aggressively pursuing it.”
AI spending was a big topic on tech earnings calls this week. Meta on Wednesday raised its capital expenditures guidance, and CEO Mark Zuckerberg said he was “quite happy” with the team’s execution. Meanwhile, Microsoft‘s investment in OpenAI weighed on its fiscal first-quarter earnings released on Wednesday, and the company said capital spending would continue to rise. A day earlier, Alphabet CFO Anat Ashkenazi warned the company expects capital spending to grow in 2025.
Amazon has said its cloud unit has picked up more business from companies that need infrastructure to deploy generative AI models. It’s also launched several AI products for enterprises, third-party sellers on its marketplace and advertisers in recent months. The company is expected to announce a souped-up version of its Alexa voice assistant that incorporates generative AI, something Jassy said will arrive “in the near future.”
Amazon hasn’t disclosed its revenue from generative AI, but Jassy said Thursday it’s become a “multi-billion-dollar revenue run rate” business within AWS that “continues to grow at a triple-digit year-over-year percentage.”
“It’s growing more than three times faster at this stage of its evolution as AWS itself grew, and we felt like AWS grew pretty quickly,” he added.
Matt Garman, CEO of Amazon Web Services, speaks during The Wall Street Journal’s Tech Live conference in Laguna Beach, California, on Oct. 21, 2024.
Frederic J. Brown | AFP | Getty Images
Amazon said revenue in its cloud unit increased 19% in the third quarter, just missing analyst estimates.
Revenue at Amazon Web Services totaled $27.45 billion, according to a statement Thursday, while Wall Street was expecting $27.52 billion, based on StreetAccount estimates. Year-over-year growth has accelerated for five consecutive quarters.
The artificial intelligence portion of AWS is in the billions of dollars in annualized revenue, more than doubling year over year, Amazon CEO Andy Jassy, who previously led AWS, said on a call with analysts.
“I believe we have more demand than we could fulfill if we had even more capacity today,” Jassy said. “I think pretty much everyone today has less capacity than they have demand for, and it’s really primarily chips that are the area where companies could use more supply.”
AWS leads the cloud infrastructure market over Google and Microsoft and is an important source of profit for Amazon.
On Tuesday, Google parent Alphabet said revenue from Google Cloud, which includes cloud applications as well as infrastructure, totaled $11.35 billion, up 35%. Microsoft said Wednesday that revenue from Azure and other cloud services grew 33%.
AWS recorded $10.45 billion in operating income, representing 60% of its parent’s profit. Analysts expected $9.15 billion.
The unit’s operating margin came in at 38%, the widest for AWS since at least 2014. Google Cloud reported an operating margin of 17%.
“We’re being very measured in our hiring,” Brian Olsavsky, Amazon’s finance chief, said on the call.
During the quarter, Oracle said it will bring database services to AWS.
“If this is successful, we would love to find more pieces of their application stack that could run well in AWS and help customers do that,” AWS CEO Matt Garman told CNBC in a September interview.
Also in the quarter, AWS announced plans to discontinue some services, including code-repository tool CodeCommit. Garman told TechCrunch that AWS “can’t invest in everything.”
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