An Earthship is a passive solar house. Michael E. “Mike” Reynolds, a New Mexico based American architect, developed Earthships.

Earthships use both natural materials and unconventional building materials, such as automobile tires. Earthships utilize everyday trash items like aluminum beverage cans, beer cans, plastic bottles, and used tires. These materials are mortared together and then plastered over into a brick design.

Earthships require a permit. They can be completely off-grid or partially off-grid.

Earthships use solar panels and geothermal cooling. They provide electricity, potable water, contained sewage treatment, and sustainable food production.