The armor is a self-contained suit of advanced technology armor. Powered by a micro-fusion reactor, with enough fuel to last a hundred years. Unlike leather and metal armor, which cannot be used by ghouls, both variations of Power Armor are suitable for ghouls.
Availability is restricted by rank within the Brotherhood.
It is available at the rank of paladin for $19,500.
I would redo the sprite of the Power Armor to make it more retro. Not that there is anything technically wrong with the sprite, it's a great piece of art. It's just that it is a bit out of place in the Fallout Universe. But bear in mind that we had to design it over a year ago and Interplay approved everything we did. - Tony Oakden, producer of FOT (Freelancer interview)
Why does the Power armor look so different from previous models? - Different group of BOS, different technology. - Ed Orman (Freelancer news)