A private start-up called Helion aims to have a working fusion reactor by 2028

Helion, a private start-up valued at $5.4 billion, aims to build a working nuclear fusion reactor by 2028. The company's unique approach uses magnets to compress plasma and directly capture electricity, bypassing steam turbines. While Helion has achieved small-scale fusion, scaling up the technology poses significant challenges. If successful, nuclear fusion could provide carbon-free energy without long-term radioactive waste, potentially powering small cities.