This facility generated power for the city, and utilized underground conduits to supply plasma energy to the starships of the Theed Hangar, including the Naboo Royal Starship and the N-1 starfighters of the Naboo Royal Space Fighter Corps. The power generator was accessed from the Hangar via a heavy blast-proof door. The interior was a maze of machinery, energy beams, conduits, and the deep shafts of melting pits.
During the Battle of Naboo, Qui-Gon Jinn and Obi-Wan Kenobi dueled Darth Maul inside the power generator: Qui-Gon was killed, but Obi-Wan defeated Maul by cutting him in half. The Sith Lord fell into a melting pit but survived and ultimately made his way to Lotho Minor.