Vital force and Chi are basically the same energy. Just different names. Drawing spirit energy would be like drawing death essence. Most spirits are nothing more than shades, like a spirit memory/thoughtform. A remnant.
I'm working on my own storage/generator project myself. I can get into a few hydro electric power plants (work related). I figure if I can use a personnel linking sigil in those's places I could possibility draw/store the raw kinetic energy from the turbines/flywheels. That's a lot of motive force, if I can tap this energy....well we'll see.
