Helios-1 was a space station constructed in the aftermath of the destruction of planet Vulcan when it was destroyed at the hands of Nero. This resulted in an alternate reality where the Vulcan race attempted to find a new homeworld for themselves. They would settle on the planet New Vulcan where the scientist T'Mar constructed the Helios Machine. The intention was to use this powerful device to help terraform New Vulan.
To provide the necessary energy, Helios-1 was constructed around a binary star where it utilized advanced technology to protect itself from the suns. This was achieved through solar shields whilst energy collectors present onboard the station drew upon the power Helios-1 gathered for the Helios Machine itself. However, the activation of the Helios Machine created a rip in space-time where the energy overload led to damage to the space station. It was only the arrival of the USS Enterprise that led to the Vulcan crew being rescued. (TOS video game: Star Trek)