Vespa System
From Transformers Wiki
The Vespa System is a place where energon is mined. Vespa II is one of its planets.
Fiction
Beast Wars cartoon
When mining for raw energon, Rattrap claimed to have once been the best miner in the Vespa System. Dark Voyage
Animated cartoon
The Vespa System fell to Decepticon control during the Great War. A massive planet-hopping campaign by the Autobots sees Vespa liberated from the Decepticons in the War of the Mines. The AllSpark Almanac II