How about identifying how many KW hours you get from a ton of coal or cubic meter of natural gas or barrel of oil and then other metrics showing how many lbs of emissions come from the same and lbs of ash? Some real stuff like that.
Why not identify how much water your process use including bathroom facilities and coming up with ways to reduce usage also reducing waste generation?
BTW...if your interested Wes...ask!!
Warshe & Wes....
There is a pretty good deal of info in the database, use a key word or two and do the search, some of the folks here have supplied some real good stuff.