The CANDLE fusion power system is a generator located on the 2nd Level of the Hidden Valley bunker that supplies power to the Brotherhood of Steel inside of it.

During the quest Still in the Dark, you are asked to retrieve parts from Vault 22 to repair the generator.


Information on the CANDLE can be found on Brotherhood of Steel terminals after doing the 'virus part' of the Still in the Dark quest.


The CANDLE Fusion Power system provides power to all bunker systems. Built more for reliability and duration of service, the power output of the system has been exceeded by many current designs, but it can supply the bunker with power for an estimated 752 years.