I'd rather have gigantic EU storage than have loads of EU go to waste. IC2 adds things required by IC2 itself that's what they do. Call me a masochist if you want but I enjoy the changes it makes to IC2, gives me more of a challenge. Alternatively you could just disable those configs. The whole purpose of Greg Tech is to expand upon IC2, give you something to aspire to. A greater goal for those seeking a challenge. A challenge to feed the beast within.