NRG

What is NRG?
SImply put, NRG is energy. It is a self-replenishing resource you use to play FFBE. Most missions in the game have a set NRG cost, which you pay automatically when you start them. WHen you're out of NRG, you have to wait for it to recharge before you can play more missions.

What exactly is NRG used for?
The following actions have an NRG cost: Any time you fight monsters in the game, chances are you paid an NRG cost for the privilege. There are only 3 exceptions: The above three types of battle use Orbs instead of NRG. Orbs replenish at a rate of one per hour. Except for Raid battles, Orb-based fights will not earn you or your characters any gil or EXP.
 * Story missions on the World map,
 * Exploration missions on the World Map, and
 * All missions in the Vortex, except for Raid missions (which are limited-time events that aren't always available).
 * Arena battles
 * Colloseum battles
 * Raid battles

How do I get NRG?
You naturally gain 1 NRG every 5 minutes, up to your maximum amount, which is determined by Rank. In addition:
 * NRG can be restored instantly by spending Lapis, or by using NRG Restore tokens, an uncommon item.
 * Some quests grant NRG as a reward.
 * Increasing your player Rank will instantly restore your energy to full.