Victor
"Well I'll be. That's a big centurion." He says, looking at the Imperfect in awe, "How do you power it? Would take a lot of soul gems to keep that thing on."
Rebecca
"Heartstones. It's why it isn't on. It's taken years to have it run properly. Heartstones are the most energy dense power source thats somewhat readily available. Aetherium is a potential source of power but we havent found enough of it to even consider that."
Victor
"I'd be surprised if you found any Aetherium at all." He says, "Nobody's been able to find a solid source of it, pretty sure the Dwemer mined most of it up, used it for gods know what, then killed eachother over it. Only place you could find it is Blackreach, and to my knowledge it's been sealed for eras."
Rebecca
"During the Second Era, the Gray Host occupied the caverns. The Aetherium we have found was within Architons... But the Arknthand Cavern... It's a potential treasure trove... Knowledge and Resources. I never visited here long during that time... I was there in Elsweyr for their little dragon crisis though."