Levila
Levila is a fictional energy medium used in speculative fiction and world-building to describe a clean, highly efficient power source derived from ambient fields. In most depictions, levila energy can be harvested with minimal environmental impact and stored in durable crystalline matrices, enabling long-term power for cities, vehicles, and spacefaring vessels.
Etymology and in-universe origins: The name levila appears across cultures in many settings, with proposed derivations
Technology and use: Levila is harvested through lattice reactors that extract levila flux from the ambient
Impact and depiction: In narratives, levila shapes geopolitics and economics, with regulation by a theoretical "Levila