Commonwealth Fusion Systems
@CFS_energy
Followers
14K
Following
605
Media
214
Statuses
639
We’re on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.
Joined March 2017
Fusion is coming. to Chesterfield County, Virginia. In an enormous development for CFS and for the commercialization of fusion energy, we've committed to build the world's first grid-scale fusion power plant, ARC, in Virginia. We'll independently finance, build, own, and
20
96
323
CFS has raised >$1.8 billion in Series B funding to commercialize clean, limitless fusion energy. This is a diverse group of investors that believe in CFS & see commercial fusion energy as a game changing tech in the clean energy transition. #fusionenergy .
8
86
272
Check out the latest construction photos from our commercial fusion campus in Devens, Massachusetts. We’re on track to demonstrate commercially relevant net energy with SPARC in 2025. And by the end of the year, our new manufacturing facility will be completed.
8
50
239
It’s happening. ARC, the world’s first grid-scale fusion power plant, is coming to Chesterfield County, Virginia. When we start generating power in the early 2030s, it'll be a colossal moment that'll open the grid to new clean, zero-carbon power that's available on demand.
17
42
207
The @BONDbuild construction crew has been busy assembling bridge cranes in the Tokamak Hall. Soon, we'll start assembling SPARC!
1
23
171
We’re revolutionizing #FusionEnergy. Our High-Temperature Superconductor (HTS) magnets are:. ✅ Tested and peer-reviewed.✅ Breaking world records with a 20 tesla field strength.✅ Reducing the cost per watt of a fusion power plant by a factor of almost 40.✅ Meeting the
5
33
174
Today's a big day for CFS, as we've officially moved in to our new company headquarters! Devens, Massachusetts will become the birthplace of commercially relevant, net-positive fusion energy.
8
20
156
Today, while many contemplate pie, we still can't stop thinking about donuts. Here's one half of SPARC's vacuum vessel, the donut-shaped chamber where the fusion reaction will occur, making its way through the fabrication process. Once completed, we'll ship the two halves to our
8
16
162
Here’s our VP of Operations Darby Dunn standing in front of a life-size rendering of SPARC inside the CFS magnet factory.
2
19
144
Exciting news today! New peer-reviewed papers released in a special edition of @CUP_Plasma predict SPARC, a compact fusion device designed and built by CFS and @MIT, will achieve net energy from fusion. #fusionenergy #fusion .
3
43
135
Virginia is for fusion lovers. Our CEO @BobMumgaard and @GovernorVA joined @SquawkBox this morning to discuss the historic announcement that ARC, the world's first fusion energy power plant, will be in Chesterfield County, Virginia. Fusion is the last energy source humanity will
5
25
132
No, we didn’t lure a UFO into CFS headquarters. This photo actually shows our first D-shaped toroidal field (TF) magnet in the making, nestled inside a cryostat that cools it down for testing. And of course some of the hundreds of people it took to design, engineer, and build
2
22
113
SPARC is more than 60% complete. So far, most of that progress has taken place outside of the central hall that’s the future home of our star-of-the-show SPARC tokamak. The SPARC facility consists of five interconnected buildings that house different SPARC subsystems. Case in
5
12
113
The centerpiece of the SPARC motor-generator system has arrived! The generator will be used to convert stored mechanical energy in the world's largest 3600 RPM flywheel system into electromagnetic energy to drive fusion experiments at SPARC.
1
11
101
Our cryostat is here! Both halves of the device that will be used to cool our high-temperature superconducting magnets for SPARC arrived at the CFS magnet factory this week. Next step: installation.
3
15
105
For our extraordinarily powerful magnets, we’ve moved from R&D and engineering to manufacturing in our magnet factory. Our high-temperature superconducting (HTS) tech means stronger magnetic fields and thus a smaller fusion power plant. Take a look here to see our magnet factory
4
20
110
New rendering of SPARC released today in #JPP special edition. SPARC is a compact tokamak that will produce net energy from fusion for the first time in history. Credit: CFS/MIT-PSFC — CAD Rendering by T. Henderson
6
26
99
We’re making fusion energy a reality. In the last six months, we’ve taken over Tokamak Hall, where our SPARC device will live, and begun installing equipment. We're over 900 employees now, too. Keep an eye out for big SPARC components coming soon.
8
18
101
Fusion isn’t 30 years in the future. We’re bringing it to life right now with experts in everything from welding to commercialization pulling together to put our clean, zero-carbon power onto the grid. The progress is palpable. Step onto our production floor and you'll see
6
14
98
Major milestones have been achieved at CFS in the last 6 months. Since June, we’ve:.👊 Established fully working production lines.🧲️ Doubled our TF Magnet pancake production rate.✅ Developed a fully operational cable magnet line.⏫ Accelerated installation of RF Systems. Now,
2
19
97
Check out the latest progress inside our SPARC fusion facility with CFS Head of Tokamak Operations Alex Creely 👷♂️
3
18
94
We've been continuing assembly work on the large test cryostat that will test our HTS magnets before they're installed in SPARC. This week, we flipped the 23 US ton lid.
0
9
95
Major moment: our CSMC pulsed-power superconducting magnet aced its validation tests. This key foundation for our SPARC fusion machine performed well while protecting itself from overheating problems. That clears the way for a new manufacturing phase. Learn more:
5
22
100
Both @swurzel and @ScottCHsu have done a great job tracking decades of progress toward net fusion energy — more power out than in. That goal, denoted Q>1, is a key step toward fusion energy commercialization. The researchers’ 2022 paper summarizes decades of results from dozens
8
20
94
Fusion gets closer with successful test of new kind of magnet at MIT start-up backed by Bill Gates @CatClifford.
1
26
90
We're celebrating a major building milestone this week: thanks to @BONDbuild, the Tokamak Hall is officially weather-tight and ready for SPARC assembly!
5
10
83
Heating a plasma to 100M Celsius is no easy act. Behold the radio frequency (RF) delivery system for our SPARC fusion machine. The RF system delivers radio waves to heat the plasma — a process related to how a microwave heats food. But in this case, the power of our RF system is
9
11
92
Tomorrow, @SecGranholm @SenMarkey @SenWarren @RepLoriTrahan @MassLtGov will join us in Devens, Massachusetts for the official opening of our new commercial fusion campus. Tune in live from 10:45AM ET ⚡
5
36
75
Meticulous #manufacturing is key to making SPARC, the tokamak we’re building to produce fusion energy. Check how our partner @WalterTostoSpa crafted the inner shell of the vacuum vessel at SPARC’s heart. It’ll house a superheated plasma that generates #fusion power.
2
17
85
It's been a busy six months since we moved into our commercial fusion energy campus in Devens, Massachusetts. Here's a look at what the CFS team has been building lately, and what comes next:
4
16
84
What’s CFS been up to in the last six months? . Picking a location for our first fusion power plant, ARC, and making magnets for our net fusion energy demonstration machine, SPARC. Check the twice-yearly update video from CEO @Bobmumgaard for the details — and a sneak peek at
3
25
87
CFS CEO Bob Mumgaard shows @SecGranholm, @SenMarkey, @SenWarren, @RepLoriTrahan, and @MassLtGov around the SPARC facility, the world’s first commercially viable net energy fusion machine now under construction.
3
8
79
This summer CFS and @MIT will demonstrate our key magnet technology. This 20 Tesla magnet will be the largest magnet of its kind and enable our approach to commercial #fusionenergy.
3
20
76
This month, CFS received a broad-scope radioactive materials license from the Commonwealth of Massachusetts for our SPARC fusion machine. By showing we’ve equipped ourselves with the people and procedures to safely handle and store these materials, we’ve taken a big step ahead on
1
13
82
The incredible work of our world-class team and collaborators has allowed us to set and meet our ambitious milestones as we work to commercialize fusion energy. We are proud that this amazing group of investors has confidence in our ability to deliver. #fusionenergy.
Cambridge energy startup smashes Massachusetts record for venture capital
3
15
78
Behold the inner shell of our tokamak vacuum vessel, built as a single component then split in half for speedy, precise manufacturing. It’ll hold hot plasma to produce fusion power. #BTS footage of @WalterTostoSpa halving the vessel. #ToughTech #FusionEnergy #Manufacturing
4
14
77
We’re in a race against time to develop scalable, sustainable fusion energy for our planet. Standardized measurements and peer-reviewed data are critical to driving progress. Read CEO's @BobMumgaard's open letter on industry accountability and innovation efforts here:
7
19
67
The CFS mission is to make fusion energy a reality. Learn more and join our team:
1
12
77
At our new magnet factory in Devens, Massachusetts, CFS will manufacture high temperature superconducting magnets for our net energy fusion device, SPARC—and then our first fusion power plant, ARC. Here’s a look inside with construction almost completed.
3
15
74
To make our SPARC fusion machine, we have to look at the big picture but also sweat the details. These close-ups show the precise machining we employ to make the steel cases for our 18 D-shaped toroidal field magnets. Stay tuned to see what our magnet cases look like in full.
2
16
77
"Everything is about to change in Tokamak Hall.". This month, we brought a key component of our prototype fusion machine, SPARC, into its final home inside the SPARC facility in Devens, MA. It's the cryostat base — the foundation of SPARC and a major milestone in its buildout.
2
15
76
High-temperature superconducting tape is enabling stronger fusion magnets that will unlock the path to commercial fusion energy.
2
10
73
An exciting week for the future of fusion, as we topped off the roof of our new SPARC facility at our commercial fusion campus in Devens, Massachusetts. Many thanks to @BONDbuild for keeping us on track for net fusion energy in 2025!
4
16
72
Come see the mega-magnet that could radically improve how we get the electricity that modern life demands. We're seriously honored to be able to show this special pop-up exhibit at the Computer History Museum in the San Francisco Bay Area that runs from Feb. 14 to March 23. Just
2
12
75
Let’s say you want better fusion power plants. How about designing some better metals — using a computer?. CFS won a $2.5 million award to employ advanced computing technologies to design better materials for our ARC fusion power plant. The funds, from DOE’s ARPA-E program, will
1
11
68
The goal for our fusion machine, SPARC, is to produce net energy — more power out than in. The power out is the part that makes the pursuit of fusion energy worth it. But the power in is also an essential part of the process. Alongside the radio frequency system that heats the
4
9
71
"Fusion has no greenhouse gas emissions, is intrinsically safe and can provide continuous power, which we can combine with renewables to decarbonize the energy system.”. With SPARC on track for 2025, we're getting close to safe, reliable zero-carbon power.
3
16
65
With #AI breaking barriers, energy demands are poised to skyrocket. #FusionEnergy presents the solution: sustainable, abundant, dependable power 24/7. Learn more in this thread. ⬇️
1
9
66
This Earth Day, we celebrate all those around the world who are working tirelessly to combat climate change with clean energy solutions.
3
10
65
Fusion energy will be an adaptable new power source when it fires up in a few years to help meet growing power demand. It's a steady source that'll complement wind and solar and it'll enable transformative new industries. Discover why fusion is a good fit for the grid's needs:
7
19
67
CFS is rewriting the rules of the power grid, moving toward sustainable, accessible, clean energy. But how will our tokamaks turn fusion into electricity? Alex Creely, Director of Tokamak Operations, details our approach to capturing heat and scaling with existing infrastructure.
5
10
60
100 days into a new administration, it's good to see @ENERGY prioritize commercial fusion energy. Efforts that help the private sector tackle the practical challenges of fusion energy, not just its scientific foundations, means the US can tap into fusion's economic and security.
9
13
65
Those governments that actively support the commercial fusion industry will chart a prosperous path into the future. Fusion's advantages — clean, steady power generation, abundant fuel, and flexible siting — make it the last new energy source the planet needs. Fusion at scale
10
13
64
New glass has been installed at the SPARC facility that will showcase what’s happening inside our entryway and diagnostics lab.
2
6
61
“We’re about halfway through building the first prototype outside of Boston. In about 2 years we’ll turn this machine on. That’ll be an important point in the world where we’ll have, for the first time, industrial-scale fusion power being created by people.” – our CEO
4
11
62
A look into the site where SPARC will soon sit, as the construction crew makes progress every day inside our Tokamak Hall.
1
14
62
Today's @BostonGlobe @davabel article highlights fusion progress. As our CEO, Bob Mumgaard says, fusion is "a solution that can scale to the size of the problem that decarbonization requires." #fusionenergy .
4
32
59
"You're transitioning from building the facility. to actually starting to build the tokamak itself. That is an awesome milestone." –CFS' Alex Creely on the arrival of the cryostat base to make SPARC. Featured in @arstechnica's look at the state of commercial #FusionEnergy by
4
8
62
There's nothing like a fresh coat of paint!. With painting in the SPARC facility almost complete, next week the construction crew will start mechanical, electrical, and plumbing work inside the Tokamak Hall.
1
10
61
CFS was honored today to host Secretary @JohnKerry and @ENI CEO Claudio Descalzi at our commercial fusion campus. They've long believed in fusion energy as a climate solution, and we're grateful for their efforts to help accelerate the path to commercialization.
1
16
59
At CFS, our team has achieved remarkable progress within a span of just six months! We have successfully developed fully functional magnet lines, actively producing our PF magnets. Bringing us one major step closer to transforming the energy landscape with #FusionEnergy.
2
10
58
Happy New Year from CFS! It’s been an extraordinary year of progress toward commercially-relevant, net-positive fusion energy, and we look forward to 2023 ringing in even more.
1
2
58
At @CFS_energy, superconductors are our jam. By carrying electrical current with no resistance whatsoever when you get these materials cold enough, superconductors let us build the staggeringly powerful magnets crucial to our fusion power effort. "Resistance is futile," we joke.
1
7
50
C-mod paved the way for the revolutionary era we’re in today. It gave us a look into the potential of a fusion powered future. SPARC was born from C-mod's legacy and the determination of those who built it. It’s the #FusionEnergy that will better the future for everyone.
February 12 is a day of reflection at @CFS_energy: the day we learned MIT’s Alcator C-Mod tokamak program had lost funding. But it was also the moment when we started thinking bigger - that we could commercialize fusion. And @cfs_energy was born. #energytransition
6
13
59
“It’s easy to fall into a trap that because energy has been done a certain way, it will always be done that way.” – That’s @BobMumgaard today at @wef in Davos, Switzerland, saying our work to bring fusion energy to the grid means it’s also time to rethink how we power our homes,
6
13
60
Today @SecGranholm joined @MassLtGov, @SenWarren, @SenMarkey, @RepLoriTrahan, and a host of state and local leaders to officially open our commercial fusion campus, on the fastest path to bring clean fusion energy to the world:
0
9
53
It’s a new year at our brand new headquarters in Devens, Massachusetts, and we’re settling in on our quest to bring SPARC to life.
0
0
54
We’re hard at work in our Devens, Massachusetts magnet factory, constructing and testing magnet assemblies for our SPARC fusion machine. We think it’ll be the first commercially focused machine to produce net energy, and it’s the foundation for later ARC fusion power plants
1
11
54
Watch as we celebrate the official opening of our new commercial fusion campus in Devens, Massachusetts with @SecGranholm @SenMarkey @SenWarren @RepLoriTrahan @MassLtGov 🎥 .
3
14
45
If there was one “score” you could give #FusionEnergy machines, it would be the Triple Product. This calculator indicates how close you are to achieving a practical energy source. Alex Creely, our Director of Tokamak Operations at CFS, explains how balancing temperature, density,
1
12
52
CFS has raised $84 million in a series A2 fundraising round to accelerate the development of commercial fusion energy. We are excited to have new investors Temasek, Equinor, and Devonshire Investors on board. #fusionenergy.
6
14
52
The U.S. Department of @ENERGY has a new tool in its toolbox for building the fusion energy future: the Private Facility Research Program (PFR). It’s an opportunity for university and laboratory researchers to win government funding when joining our SPARC effort. It’s a good
4
9
57
For our super-strong magnets, all paths to our SPARC fusion machine lead through this big cylindrical chamber. It’s called a cryostat, and we have two of them here at CFS so we can put all our magnets to the test before they become part of SPARC. Between tests, our team dons
1
8
56
"We realized if we really wanted to make a difference in mitigating climate change, we had to go fast.". Co-founder and Chief Scientific Officer Brandon Sorbom shares the CFS origin story, from a class project at MIT to the world's largest private fusion company:
1
13
52
On the path to our magnet demonstration this summer, we recently received the TFMC cryostat which will be installed and prepped for pre-magnet testing. The cryostat allows us to cool down and maintain the magnet at cryogenic temperatures required to achieve superconductivity.
2
11
56
Congratulations to the @lasers_llnl team at @Livermore_Lab on this groundbreaking achievement in fusion! These exciting results further validate that fusion science is worth the investment.
1
5
51
Exciting to see CFS branding up in our new office building. We're getting close to move-in day at our Devens campus!
0
5
51
A big piece of the #SPARC puzzle just landed on campus. Any guesses what we’ve got here? More on this soon.
7
4
56
Just released: Highlights from the live-stream of our 20 tesla magnet moment. Enjoy!
2
14
50
Today, CFS announced a partnership to build superconducting magnets for @typeoneenergy, bringing our expertise to a new area of the fusion energy effort. 🧵1/4.#FusionEnergy #PowerMoves.
3
13
55
“The jump from fossil fuels to fusion energy will inevitably be more profound than the jump from burning wood to burning fossil fuels.” . That’s from our CEO @BobMumgaard & @VKhosla in @WEF's blog about how harnessing the sun’s power source will meet growing energy needs, improve.
3
9
53
This successful first plasma confirms that our advanced HTS magnet technology has versatile applications beyond CFS, including powering different fusion devices like WHAM.
WHAM! Nuclear fusion experiment hits new record for magnet strength
0
8
53
This photo shows a match made in heaven. A plasma from the sun triggers the aurora borealis that produces this colorful sky at our headquarters in Devens, Massachusetts. Right below is the building where we'll make our own a plasmas — a giant step on the path to fusion energy,
0
6
52
"I think the science is beautiful. But the science doesn’t actually power the lights. If we build one [fusion power plant] we’ve utterly failed. You need thousands.". That's CFS CEO and Co-founder @BobMumgaard speaking with @Eaterofsun of @TheEconomist at the first ever Fusion
7
4
51
"China and the US are in a race to create the first grid-scale nuclear fusion energy. After decades of US leadership, China is catching up by spending twice as much and building projects at record speed." 1/3
2
11
52
CFS has hit a major milestone, with 500 employees and counting!. Our mission-driven team is working tirelessly to bring fusion to the world, and we couldn't be more excited about the progress we're making as the world’s largest fusion company.
4
6
48
With the recent successful test of our prototype CSMC, we’re taking a moment to celebrate the journey that got us here. The path to that success required multiple engineering breakthroughs that could only have been achieved with steady, clear-eyed focus on making SPARC a
3
10
52
CFS has selected a 47-acre site in Devens, MA as the future home of our commercial #fusionenergy campus. This is the site where we will prove fusion can work as a power source for the first time in history.
3
17
46
The magnet factory is one of the centers of action at our Devens campus, more like an auto factory than an R&D lab. That’s because our focus there is now squarely on building and shipping magnets for #SPARC, in particular our toroidal field (TF) and poloidal field (PF) magnets.
2
11
51
“I am totally aligned on the fact that in the 21st century, the country that has the cleanest, most reliable energy source will win. The entity that gets power right will run the 21st century.” –Virginia Sen. @MarkWarner, speaking at the @Fusion_Industry policy conference this
7
5
49
CFS Chief Science Officer and Co-founder @BrandonSorbom offers a ground-level view of how we'll assemble the SPARC fusion machine inside Tokamak Hall. In the third video of this three-part series, Brandon shares a surprising detail on the cranes we use to handle SPARC's large
2
10
52
President Biden today signed the ADVANCE Act, a law that locks in the certainty that the fusion industry needs to develop, build, and scale commercial fusion power in the United States. And we applaud that. Regulating fusion energy separately from fission is appropriate for.
0
13
47
Read all about our path to fusion energy, the technology behind SPARC, and the accelerating race to commercial fusion in @tomclynes' new @IEEESpectrum feature on CFS.
0
14
45
Fusion energy is moving from research to reality, poised to fight climate change. As announced last week at the @WhiteHouse, CFS is proudly leading the path forward to be among the eight fusion companies that signed agreements in @ENERGY's $46 million Milestone-Based Fusion.
0
5
44
Fusion power is commercially feasible. We’re defying limits and setting the stage for a cleaner, brighter future with SPARC. With it, #fusionenergy is possible, and we can produce limitless #cleanenergy by mimicking conditions found in the stars. 🌟 . Read more about SPARC.
3
10
47
CFS Co-founder and Chief Science Officer Brandon Sorbom spoke with @CNBCMakeIt about his path to CFS, and our mission to commercialize clean, limitless #fusionenergy in time to combat climate change.
3
18
42
Explore the essential areas of our SPARC facility, home of our fusion energy device, with Alex Creely. 🏢 Operations: Generates data from SPARC. 📡 RF Bldg: Houses equipment to heat the plasma & assemble components. 🌟Tokamak Hall: Home of our SPARC device. ♨ Utility: Handles
2
4
45
SPARC’s fusion operation is a carefully choreographed dance of power, heat, and data. At the heart of it all is Tokamak Hall, but we need more than the tokamak itself to produce fusion power. Here's a closer look at what’ll go in and out of each part of our SPARC facility:
2
4
45
We've won two @ENERGY INFUSE awards for SPARC and the ARC power plant. That brings our INFUSE award total to 23 — the most of any fusion company. These awards, following a $15 million agreement under DOE’s Milestone-Based Fusion Development Program, highlight the growing.
0
8
45