This presentation explains the various methods high performance designers follow during high performance design process. It particularly focuses on the design methodology used in a 1740-ft (530m) supertall net zero building on a 3,450,000-ft² campus in the heart of Jakarta, Indonesia. Pertamina’s new headquarters and campus are a mixed use development for the 20,000 plus employees and visitors expected to work daily on the campus. Low enthalpy geothermal system in a combined heat and power scheme using binary cycle technology as primary source of energy will make Pertamina’s Energy Tower the tallest net-zero building in the world.