I don’t know how closely you are working with the makers of IC2 but I would find it very useful if there was a way to use IC2 electricity to power buildcraft things. like have a electric engine that has the same basic properties of a steam engine but powered by electricity.
I would definitely like this, but I would also like to store extra pneumatic power into IC2 batteries: pneumatic electricity generator!
(sorry for mixing suggestion, but it kinda go hand in hand)
However, just like real life, compressing air (or whatever) to build pneumatic power would require lots of power, and the opposite, generating electricity from pneumatic would not be very efficient either.
That’d mean you’d have lost at storage, and lost at retrieval, so it would be game breaking.