Earthship models

Earthship Biotechture has standardized several models of earthship they design and build. The different models attempt to accommodate different levels of comfort, size and affordability.

Introduction
The standardization of earthships into several models affords many benefits, such as bringing cost down, speeding up construction, and allowing Earthship Biotechture to refine the characteristics of the models over time.

Global Model
Main article: Global Model 

The global model earthship is the flagship model, and is the so-called "global" model as it was designed specifically to function in a variety of climates as well as pass a majority of regulatory requirements. The global model comes with modern amenties like flush toilets, hot water and AC power outlets in every room.

Simple Survival
Main article: Simple Survival

The simple survival is a cheaper alternative to the global model, as the affordability and material requirements for the global model make the global model out of reach for the majority of the world's population. Hence the simple survival foregoes some of the amenities of the global model (the shower is gravity-feed water that is only solar heated), as well as using cheaper design elements (the roof for each room is a concave concrete mesh topped with earth, insulation and an additional layer of concrete).

Packaged model
The packaged model was the pre-cursor to the global model, and thus the two have many of the same characteristics. Some of the main differences are the glasshouse (the windows were vertical in the packaged model) and the water collection (the roof had a series of parapets, spires and valleys to collect water in the packaged model versus a flat roof in the global model).