This is another example of an earth ship. This earth ships profile allows it to get the winter sun through the windows and block out the harsh summer sun.
The Hobbitat: An Earth Sheltered House in North Carolina
In the late 1970s a North Carolina professor concluded an earth sheltered house would meet his desire for an unconventional yet affordable, secure, and structurally south dwelling. Originally published as
My dream home is an earthship. An earth-sheltered home usually made with some recycled materials. It creates its own energy source and water source (no more utility bills)! It requires very little heating and cooling and has a grey water system and rainwater harvesting system.
5 Reasons To Consider Living Off The Grid – Expanded Consciousness