Ignacio Rivas

 is a Followers of the Apocalypse scientist living in the Mojave Wasteland in 2281. He tends to the management of HELIOS One alongside the NCR.

Appearances
appears in Fallout: New Vegas.

Glitches
During That Lucky Old Sun, If you choose to overload the power plant, you will be able to use the following dialogue option when you talk to Ignacio after completion of the quest.

"I overloaded the plant. No one will be able to use it to power a weapon." This option will not go away after you have used it once, so you can do it as many times as you like and get the following everytime you do it. (Fixed in patch 1.02)
 * 3 stimpaks
 * 2 doctor's bags
 * 350 XP points.