I was thinking about how one could use Fuel much more efficiently, then the idea of Fuel Pellets hit me.
Basically, you throw the fuel can into a compressor and out comes a single fuel pellet (yes, the can is lost.) These little guys are stackable and are able to be "burned" in generators for the same amount of EU.
Or, if the devs want to add a little more work to something like this, try putting the can into an extractor to get something along the lines of a gelatinous fuel block, THEN putting it into the compressor. The tin used is still lost either of the three ways:
1) Burning the can in the Generator, straight out
2) Putting the can through the compressor
3) Putting the can through the Extractor, then the compressor.
I'm just thinking this along the lines of the bucket-cell trade off.