Beijing time. 9 month 9 Morning news , With the successful testing of a key technology —— A very powerful magnet , And consumes very little energy —— Nuclear fusion is a key step in moving from laboratory to commercial feasibility .
New energy startups Commonwealth Fusion Systems（ hereinafter referred to as “CFS”） And the MIT Center for plasma science and fusion （ hereinafter referred to as “PSFC”） Wednesday said , stay PSFC On Sunday morning local time in Cambridge, Massachusetts 6 spot , They have tested the technology .
In the test , The magnetic induction intensity of the target magnet has reached 20 tesla . As a reference ,20 Tesla is more traditional than NMR （MRI） The magnetic induction intensity of scanning is higher than 12 times .
PSFC The director of the 、CFS Co founder Dennis · white （Dennis Whyte） Told reporters on a conference call on Wednesday , When the magnetic induction intensity reaches 20 While Tesla , This magnet consumes only about 30 Watt energy —— Than the traditional copper guide magnet previously tested at MIT 2 Gigawatts of energy consumption is several orders of magnitude lower .
Nuclear fusion is a physical reaction that provides energy to the sun and other stars . When two smaller 、 Lighter nuclei merge together , When a heavier nucleus is formed and energy is released , There will be nuclear fusion . If nuclear fusion can be realized and commercialized on earth , It can provide almost unlimited clean energy , Instead of producing waste that may remain radioactive for thousands of years like nuclear fission .
CFS and PSFC Express , This new magnet is strong enough , When their team uses it to build a project called “ Tokamak ”（tokamak） Doughnut shaped fusion machine , Will be available “ Net energy ”, That is, the fusion machine produces more energy than it needs to start and maintain the reaction .
up to now , No company has been able to achieve net energy nuclear fusion , All the energy generated by the fusion reaction in various experiments is used to start and maintain the reaction . Fusion Industry Association （Fusion Industry Association） Of CEO Andrew · Holland （Andrew Holland） In an interview ：“ up to now , There are no companies yet 、 university 、 The national laboratory or government has achieved the goal of fusion energy balance .”
CFS and PSFC Scientists and engineers say , The successful performance of the new magnet technology is a key step in the commercial development of nuclear fusion technology .
White said ：“ We think , This kind of magnet will change the development track of fusion science and energy , And eventually change the energy pattern of the whole world .”
Howard also thinks ,CFS and PSFC The goal of commercializing nuclear fusion can be achieved . He said ：“ It's a big deal .”
“ This is not hype , But the reality . With the progress of the whole nuclear fusion industry , We see a new 、 Clean 、 Sustainable 、 Always available energy is being born .” Holland said .
In the experiment last Sunday , In order to make it possible to achieve 20 Tesla's magnet ,CFS and PSFC High temperature superconductors are used .
“ The size and performance of this magnet are similar to those of MIT 5 The non superconducting magnet that ended the experiment years ago is similar ,” White said , But both “ The difference in energy consumption is quite striking ”.
CFS Unrealized revenue , The company has raised more than from a few investors 2.5 US $100 million , These include the high-profile sustainable development investment fund Breakthrough Energy Ventures, Supporters of the fund include Bill · gates （Bill Gates）、 Jeff · bezos （Jeff Bezos）、 Richard · Branson （Richard Branson） Hori - Da Li （Ray Dalio） etc. .
CFS The team says , The high-temperature superconducting magnet shown last Sunday will be used for a magnet called “SPARC” Fusion test device , The device has been installed in Devons, Massachusetts （Devens） Build , It is expected that 2025 Show the net energy from fusion years ago , And the company's first fusion power plant （ be known as ARC） Planned for this century 30 It went online in the early s .
On a conference call on Wednesday ,CFS Of CEO Bob · Mengard （Bob Mumgaard） Express ,SPARC“ Not a business system , Because it can't 30 Electricity is delivered to people day by day every year ”. He pointed out that ,SPARC and ARC The difference is that “ Reliability and life ”, It's like building a test plane first , Then make passenger planes .（ Tang style ）