Put your excess power to work! This mod adds a "mass fabricator", which takes in any basic ore (iron, copper, etc.) and outputs two! The energy cost is quite high though. By default, it takes 1GJ of energy to duplicate one item of ore.
This also adds a "mass disintegrator" and "mass annihilator" to convert ore into pure energy to power your base. The disintegrator turns ore into raw plasma, and the annihilator will turn plasma into power.
You can support any (modded) item by adding its name to the list in "valid-items.lua". You can also tweak the crafting time in the same file. Let me know if you have any suggestions!