Realta Fusion is touting a “first-of-a-kind achievement” for the fusion energy field, having demonstrated direct energy conversion of plasma kinetic energy into electricity.
The Madison-based company yesterday announced it’s the first commercial fusion energy company to achieve the milestone, though the process has been done several times in laboratory settings.
“People have been talking a big game about [direct energy conversion] for years, so we just went out and did it,” CEO Kieran Furlong said in the release.
The company installed and demonstrated its direct energy converter on June 19 using an experimental fusion machine it operates alongside UW-Madison, called the Wisconsin HTS Axisymmetric Mirror, or WHAM. The demonstration involved drawing multiple amps of current at around 100 volts, creating enough electrical power to power multiple lightbulbs.
Direct energy conversion for fusion plays a key role in boosting the system’s efficiency, according to the company.
The initial fusion power plants the company plans to start up in the mid-2030s will get 80% of their energy from a traditional thermal cycle operating at up to 45% efficiency, while the other 20% would come from direct energy conversion, running at greater than 90% efficiency.
That smaller component would offset the energy needed to kickstart and sustain the fusion plasma in Realta’s machines, resulting in up to 20% lower costs per kilowatt hour, the company says.
Derek Sutherland, chief scientific officer for the company, says the demonstration represents “a meaningful technical milestone and proof-of-concept” for this element of Realta’s planned fusion plants.
“While we’ve demonstrated DEC works on WHAM, this is not yet a demonstration of net-electricity or a large-scale conversion of fusion power directly into electricity” he said in the announcement. “Those are milestones for our future fusion machines.”
See more on the company in a recent story.
