Positive View - "In 2021, the firm announced that its 7th prototype, Trenta had reached 100 million degrees C after a 16-month test cycle with more than 10,000 pulses. Magnetic compression fields exceeded 10 Tesla, ion temperatures surpassed 8 keV, and electron temperatures exceeded 1 keV.[16][17] Helion's seventh-generation prototype, "Polaris" is under development and is expected to be completed in 2023.[18] It will increase the pulse rate from one pulse every 10 minutes to one pulse per second for short periods.[19] The Polaris facility will economically produce helium-3 on a commercial scale."
Criticism - "Retired Princeton Plasma Physics Laboratory researcher Dr. Daniel Jassby mentioned Helion Energy in a letter included in the American Physical Society newsletter Physics & Society (April, 2019) as being among fusion start-ups allegedly practicing "voodoo fusion" rather than legitimate science. He noted that the company is one of several that has continually claimed "power in 5 to 10 years, but almost all have apparently never produced a single D-D fusion reaction".[24] However, the Helion team published peer-reviewed research into its colliding FRC system demonstrating D-D neutron production as early as 2011,[11] and further detailed D-D fusion experiments producing neutrons in an October 2018 report at the United States Department of Energy's ARPA-E's annual ALPHA program meeting.[25] According to the independent JASON review team,[26] VENTI, a sub-scale prototype Helion had developed partially for the ALPHA program, achieved initial results of 8·1022 ions/m3, 4·10-5 seconds confinement time and a temperature of 2 keV for a triple product of 6.4·1018keV·s/m3 in 2018."
Criticism - "Retired Princeton Plasma Physics Laboratory researcher Dr. Daniel Jassby mentioned Helion Energy in a letter included in the American Physical Society newsletter Physics & Society (April, 2019) as being among fusion start-ups allegedly practicing "voodoo fusion" rather than legitimate science. He noted that the company is one of several that has continually claimed "power in 5 to 10 years, but almost all have apparently never produced a single D-D fusion reaction".[24] However, the Helion team published peer-reviewed research into its colliding FRC system demonstrating D-D neutron production as early as 2011,[11] and further detailed D-D fusion experiments producing neutrons in an October 2018 report at the United States Department of Energy's ARPA-E's annual ALPHA program meeting.[25] According to the independent JASON review team,[26] VENTI, a sub-scale prototype Helion had developed partially for the ALPHA program, achieved initial results of 8·1022 ions/m3, 4·10-5 seconds confinement time and a temperature of 2 keV for a triple product of 6.4·1018keV·s/m3 in 2018."
https://en.wikipedia.org/wiki/Helion_Energy