This is a Slime Science Advanced DLC item.
The Energy Extractor is a machine that the Slime Science Advanced DLC basically revolves around. It takes organic matter and turns it into MEU (Mega Energy Units). One MEU is equivalent to about 10,000,000 energy.
Matter can be fed into the machine, and collected. Items and their MEU values:
|Phosphor Plort||1 MEU|
|Boom Plort||1 MEU|
|Rad Plort||2 MEU|
|Nuke Plort||6 MEU|
|Fossilized Hen-Hen||600 MEU|
|Fruit and Veggies||1 MEU|
After 200 MEU are acquired, an Energy Barrel can be produced. Many Slime Science Advanced DLC Machines rely on Energy Barrels for fuel.