Various ideas, i don't know what Helion are planning: https://en.wikipedia.org/wiki/Direct_energy_conversion https://en.wikipedia.org/wiki/Direct_energy_convers

Various ideas, i don't know what Helion are planning: https://en.wikipedia.org/wiki/Direct_energy_conversion https://en.wikipedia.org/wiki/Direct_energy_conversion Touched on here: https://www.euro-fusion.org/news/alternative-fusion-concepts-helion-energy/ https://www.euro-fusion.org/news/alternative-fusion-concepts... The diagram from Helion on that page makes it look basically like a two-stroke petrol engine: a magnetic field compresses the plasma, which then fuses, and the energy pushes back against the field, doing work. I'm not sure my intuitions about lawnmower engines really carry over to fusion reactors like that, though.