As the creator of the Power Cells, let me clarify:
As it stands CURRENTLY, the Cells are just a roleplay item. That is due to it being a faction request in itself, and thus having to wait a couple months until a new faction request can be submitted (Only one request per faction request - thus the creation/addition of the cell ingame was the request).
So while currently it has no ingame use beyond an RP item, their purpose is to yes, eventually have ingame abilities (such as an alternative fuel for cloaks or jump drives, boost to thrust/cruise, etc etc). That will be decided on via the IRG members/Erzie as new IRG 1ic, and the admins to approve such.
And yes, there is a request in already regarding their use ingame.