At the moment there are two or three mods on the New Vegas Nexus which give energy weapons armour piercing, and a couple of others that tweak the damage stats, and several that mess around with ammo usage or ammo recycling. I invite any and all modders that are enthusiasitc about energy weapons to work together to work on this definitive energy weapon mod. A genius mad scientist that likes to vaporise people shouldn’t ever have to switch to a Cowboy Repeater.
Future Weapons Today is a work-in-progress that aims to increase the variety and usefulness of energy weapons, so that they are actually viable as a main combat class.