Enetron
Enetron is an energy resource in the show Tokumei Sentai Go-Busters.
The measurement of Enetron is per Tron. Probably taken from Ene(tron).
The implication is that Enetron is vital for the daily lives of people. The Energy Management Center regard it as precious, rarely giving it out, never squandering it, and having it protected by the Go-Busters and the Special Missions Department.
Enetron is stored in Tanks. Supposedly there's only supposed to be one Tank at most per district.
To protect the Enetron, they have a Special Missions Department. The Go-Busters are are a squad of modified humans with the vaccine program who are a part of this department. Apparently people do steal Enetron from time to time, but the major threat to the Enetron supply is the Vaglass.
In episode 17, we see that raw Enetron exists below the ground. It is unknown if this is the only method for obtaining Enetron.