Prime Energy Tower
From Transformers Wiki
The Prime Energy Tower produces a type of energy known as Prime Energy, and is considered to be Feminia's greatest asset.
Fiction
The Story of Super Robot Lifeforms: The Transformers
In 2010, the Decepticons attacked Feminia and tried to take control of the Prime Energy Tower, as they are known to do whenever they lay their eyes on something that produces energy. Rodimus Prime and his Autobots anticipated the attack, and were waiting near the tower to protect it. They came close to losing the battle with the Decepticons, but thanks to the Omnibots, the Prime Energy Tower was ultimately saved. The Story of Super Robot Lifeforms #5