Earth Ships

Introduction

"Earthships are passive solar buildings with renewable power, water harvesting, and sewage systems, designed to be off grid with minimal reliance on public utilities, and use recycled and natural materials. Due to high initial capital cost and resources needed, earthships have primarily been implemented in developed countries. However, the self-sufficiency earthships offer through their subsystems presents an opportunity for resource-constrained environments." - Feasibility of Translating Earthships in Africa and Future Design Considerations

Made from old tires and dirt. 

Energy Production & Efficiency

They save energy by eliminating or reducing heating and cooling costs via passive temperature control of both the building materials and design. The greenhouse portion of the building helps stabilize the indoor temperature. 

Open windows and cooling tubes help reduce the heat in summer, while the greenhouse potion can help heat the building when it is cold outside.

Solar panels and the POM (Power Organizing Module) with a collection of batteries can power lights and other electronics without a grid connection.

Water Capture & Recycling

Earthships are designed to capture water, use it for drinking and washing. 

The grey water then moves through the greenhouse section, watering edible plants as it moved along a gentle slope. 

That water then is used to flush toilets before going to an outdoor septic system which in turn empties into a nearby botanical cell to support outdoor plants. 

This means the naturally harvested water can be used 3 or 4 times.

Lifespan: "Tires have a life of 30,000 years" and the building themselves are expected to have a 1,000 year life expectancy if well built, as well as in the correct climate for this building type. 

When built incorrectly or in the wrong location, they may need yearly repairs and re-plastering.

Pro: Thermal regulation is better than that of concrete or other modern building designs, meaning little to no heating or cooling is required. They are also more sound proof thanks to the thick walls. They collect and reuse water, produce their own energy, and can be extremely pretty with their adobe and glass bottle walls.

Con: Getting permits to build these and people trained in building them can be a challenge. The Ministry of Architecture lists many cons of these buildings.  A recurring warning is that these buildings don't always function as advertised.

Solutions: Connect with existing organizations and experienced builders to help with this type of project. They may also have experience in convincing local governments to give permission to build one of these amazing buildings. The Ministry of Architecture offers this collection of Tips & Tricks to Make Earthships Work.

Materials: Used tires, dirt, concrete, reclaimed wood, used bottles, and a roof for rain capture. Water and energy management systems also need to be included. These include windows opened by rope systems, and tubes for the passive cooling element of the building.

New Earthships Capture More Energy, Water & Food at Lower Cost

24:17 tour around the earthships of Tao

Resources

Articles

Studies

Temperature Charts

Education Opportunities

Europe

UK

North America

Guatemala


Nicaragua

USA

New Mexico

Oceana

Australia

Tasmania

Organizations

Europe

Czech Republic / Czechia

Germany / Deutschland

Netherlands

UK

North America

Belize

USA

New Mexico

Oceana

Australia

Companies 

These are builders with experience in earth ship construction, but being listed here isn't a garantee. Always remember to conduct your own research before investing in a home builder or design.

North America

USA

California

New Mexico

Oceana

Australia

New Zealand