A Japanese architecture firm is in the process of creating the first house under its environmentally-conscious Aluminum Project, which will use aluminum walls both to save resources and to provide thermal radiation. Since aluminum is strong but light and easy to manufacture into flexible sections, it's highly efficient in constructing designery spaces.

- Geothermal heat from underground hot springs are pumped through the aluminum shell.
- Wind turbine and photovoltaics power the heat exchange system.
- Hollowed out wall components leave room for pipes and cables.

Here are the guys at the Japanese factory that's currently testing some of the walls.

Atelier Tekuto via Dezeen