Pack Version: 1.2.1 (using the zip download with MultiMC)
JEI shows that Energetic Alloy can be created in either the Immersive Engineering Arc Furnace or the EnderIO Alloy Smelter.
Unfortunately the Arc Furnace requires pistons for the heavy engineering blocks, and pistons require EnderIO redstone alloy, which can only be created in an Alloy Smelter.
The Alloy Smelter requires a machine chassis, however this requires the Compact Machines crafting, but the Miniaturization Field Projectors require Energetic Alloy so you are stuck.
Pack Version: 1.2.1 (using the zip download with MultiMC)
JEI shows that Energetic Alloy can be created in either the Immersive Engineering Arc Furnace or the EnderIO Alloy Smelter.
Unfortunately the Arc Furnace requires pistons for the heavy engineering blocks, and pistons require EnderIO redstone alloy, which can only be created in an Alloy Smelter.
The Alloy Smelter requires a machine chassis, however this requires the Compact Machines crafting, but the Miniaturization Field Projectors require Energetic Alloy so you are stuck.