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Commonwealth Fusion Systems
@cfs.energy
We’re on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.⚡️🔆💫
It’s time to detail the third of the six milestones every company must reach on the way to commercial fusion energy. Our CEO Bob Mumgaard laid these out last year in an open letter — a guide for outside observers to track how well fusion energy companies are doing (cfs.energy/news-and-med...). 1/3
Building Trust in Fusion Energy
The world's largest and leading commercial fusion energy company
cfs.energy
November 14, 2025 at 9:54 PM
With a one-time investment of $10 billion, the United States has a chance to reshape its energy future for the better. A few days ago, the @fusionindustry.bsky.social detailed just how the country should put that money to work. 1/6
November 12, 2025 at 9:12 PM
Data is good. Publishing it is good. This paper from Sam Wurzel and Scot Hsu is a peer-reviewed scorecard that lets us all track the concrete progress on our commercialization milestones — the solid foundation that builds trust in the fusion energy industry. 1/3

#FusionEnergy
November 7, 2025 at 8:38 PM
To get the first half of our vacuum vessel from Italy to the USA, we flew it on an Antonov An-124 Ruslan aircraft, an unusual 4-engine cargo plane with room for the 48-ton component. Unlike passenger planes, the nose of the An-124 hinges upward to load and unload cargo.

#FusionEnergy #PlaneSpotting
November 5, 2025 at 4:43 PM
"Fusion’s potential impact on global energy systems is profound. It offers energy independence by decoupling power generation from natural resources, making it ideal for urban centers and regions with limited land." 1/2

#FusionEnergy
October 31, 2025 at 9:09 PM
Getting half of SPARC'S vacuum vessel to Devens, Massachusetts was no easy task. 1/2

#FusionEnergy
October 30, 2025 at 3:49 PM
Big update: Half of our vacuum vessel, the very heart of our SPARC fusion machine, has landed in Devens, Massachusetts.

#PowerMoves
October 28, 2025 at 2:16 PM
Reposted by Commonwealth Fusion Systems
Very excited to be able to talk about something I've been working on for a while now - we're working with Commonwealth Fusion Systems, IMO the leading fusion startup in the world, to take our work on AI and tokamaks and make it work at the frontier of fusion energy. deepmind.google/discover/blo...
Google DeepMind is bringing AI to the next generation of fusion energy
We’re announcing our research partnership with Commonwealth Fusion Systems (CFS) to bring clean, safe, limitless fusion energy closer to reality with our advanced AI systems. This partnership...
deepmind.google
October 16, 2025 at 1:55 PM
Reposted by Commonwealth Fusion Systems
Google is working with Commonwealth Fusion Systems again, though not in the way you might think. The tech company's DeepMind division is providing its AI tools to help the fusion startup maximize power from its forthcoming reactor. techcrunch.com/2025/10/16/t...
The real reason Google DeepMind is working with a fusion energy startup | TechCrunch
Google has invested in fusion startups as potential power suppliers. This latest move suggests Google sees them as potential customers, too.
techcrunch.com
October 16, 2025 at 6:23 PM
It’s time to bring the new computing power of AI to fusion energy. Today, Commonwealth Fusion Systems and Google DeepMind — giants in these two fields — revealed that we’ve joined forces to explore how AI can improve our SPARC fusion machine. blog.cfs.energy/with-ai-alli... 🧵

#FusionEnergy #AI
With AI alliance, Google DeepMind and CFS take fusion to the next level | The Tokamak Times
#Fusion energy holds the promise of clean, affordable electricity that can help power the next phase of our civilization’s development, a tool to bring many other advancements within reach. And AI alr...
blog.cfs.energy
October 16, 2025 at 1:29 PM
At CFS, we believe AI has the potential to break bottlenecks in traditional computing and accelerate fusion energy progress. At Tuesday's Special Competitive Studies Project conference about fusion and AI, our CEO Bob Mumgaard described how fusion could be one of many fields that AI could remake. 🧵
October 15, 2025 at 7:18 PM
“The central dynamic of the fusion race is clear: the United States laid the scientific groundwork; China is positioning to win the industry…"

So concludes a new report on the race to reap fusion energy's benefits: economic advantages, energy independence, a lead in AI & national security. 🧵
October 10, 2025 at 12:07 AM
Our CEO Bob Mumgaard on why fusion energy, the power of the stars, is so clean: 1/4

#FusionEnergy
October 7, 2025 at 6:06 PM
"I’m optimistic the ARC power plant will come online within the next decade. When that day comes, it will be a huge win for America’s energy independence—and for the world’s quest for abundant sustainable energy." 1/2

— Bill Gates

#FusionEnergy
October 6, 2025 at 6:15 PM
This week, we announced that a production version of our groundbreaking magnet technology passed our rigorous testing, clearing it for use in our SPARC fusion machine. The @energygov.bsky.social's Milestone program validated our tests, and awarded CFS $8 million for reaching the milestone.
October 3, 2025 at 6:11 PM
Two of our co-founders, CEO Bob Mumgaard and Chief Science Officer Brandon Sorbom, are a rare breed: scientists who earned PhDs in plasma physics who also have deep business acumen. 1/3
October 1, 2025 at 6:12 PM
It’s a great moment to celebrate milestones at CFS — in more ways than one. Today we announced we’re done manufacturing one of our key magnets and putting it through a rigorous, month-long battery of performance tests — which it passed. 1/4

#PowerMoves
September 30, 2025 at 1:34 PM
On Monday, we announced a power purchase agreement with Eni, one of the largest energy companies in the world, in a deal worth more than $1 billion.

But how can we sign an agreement like that without yet having demonstrated a machine that actually produces fusion energy? 1/2

#FusionEnergy
September 24, 2025 at 2:13 PM
Reposted by Commonwealth Fusion Systems
The fusion startup has inked a deal with Italian energy company Eni. The move is likely intended to set a price for fusion power.
Commonwealth Fusion Systems books a $1B+ power deal for its future fusion reactor | TechCrunch
The fusion startup has inked a deal with Italian energy company Eni. The move is likely intended to set a price for fusion power.
techcrunch.com
September 22, 2025 at 11:03 AM
Less than three months after announcing our partnership to sell Google power from our first ARC fusion power plant, we now have a second customer: Eni, an integrated energy company based in Italy with operations in 60 countries. 1/4

#PowerMoves
CFS and Eni Announce $1 Billion+ Fusion Power Purchase
YouTube video by Commonwealth Fusion Systems
www.youtube.com
September 22, 2025 at 11:20 AM
Yesterday in Chesterfield County, our ARC fusion power plant moved one step closer to the grid as the Chesterfield County Board of Supervisors unanimously approved a conditional use permit for the project. Our planned site is now zoned for fusion energy generation. #FusionEnergy #Virginia 🧵1/4
September 18, 2025 at 2:16 PM
When our CEO Bob Mumgaard says you can see the Chinese fusion program from space, this is what he’s talking about. The country is investing heavily — $6.5 billion over the last two years — to try to win the race to commercialize fusion power: the last source of energy humanity will need. 1/4
September 16, 2025 at 5:09 PM
To help fusion energy observers get a better handle on our industry’s progress our CEO, Bob Mumgaard, is detailing the six steps every fusion company must take on the path to delivering power competitively. Today, he digs into the second step: get your fusion fuel hot enough.

#FusionEnergy
September 8, 2025 at 3:45 PM
Why work on our ARC fusion power plant when we haven't switched on our SPARC demonstration machine? It's a fair question.

Our answer: at CFS, we've deliberately charted a path to fusion energy that lets us work in parallel on multiple projects. 🧵1/3

#FusionEnergy
blog.cfs.energy/how-863m-in-...
How $863M in new funding fast-tracks commercial fusion power | The Tokamak Times
Our mission is to deliver fusion’s clean, secure, and steady energy at scale as soon as possible. A new $863 million in funding ensures we can do just that.
blog.cfs.energy
September 4, 2025 at 3:35 PM
FusionX Group's Stuart Allen: CFS is the "best financed private-sector fusion venture by a wide margin, and with the most diverse cap table, highlighting the extraordinary investor confidence CFS has built relative to many of its competitors."

fusionxinvest.com/insight/9007...
#FusionEnergy
CFS is different | FusionXInvest
Commonwealth Fusion Systems’s $863 million Series B2 funding round brings the company’s total capital raised to nearly $3 billion, cementing its position as the best financed, private-sector fusion ve...
fusionxinvest.com
September 2, 2025 at 2:44 PM