The Sith Empire on Dromund Kaas utilized lightning spires as a defensive measure. These structures shielded their urban centers, machinery, and staff from the planet's frequent and destructive lightning storms. These spires, conceived by Renigus Wight, a former leader within the Imperial Reclamation Service, rose high above the Dromund Kaas jungles. Their purpose was dual: to draw lightning strikes away from ground-level targets and, in addition, to capture the energy from these strikes to provide power for the cities.