Buenos Aires-based firm IR Arquitectura has created a brilliant modular cabin designed to offer not only exceptional flexibility, but also stellar energy efficiency. The cabin is made up of five distinct prefab modules that can be configured in various shapes. Equipped with a solar heating water system, a solar kitchen, a trombe wall and solar lamps, the sustainable cabin can operate completely off-grid in virtually any location. The cabin is built out of prefabricated modules that are manufactured off site and transported to the desired location.