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Practice

Earthship

An off-grid building design developed by architect Michael Reynolds in Taos, New Mexico, beginning in the 1970s. Earthships use earth-rammed tires as load-bearing walls, integrate passive solar heating and cooling, on-site water harvesting and treatment, indoor food production (greenhouse running the south face), and renewable energy. Designed to be entirely self-sufficient — no grid connection, no city water, no sewage hookup, no utility bills. Several thousand Earthships exist worldwide; the Greater World Earthship Community in Taos is the largest concentration.

Six principles

Reynolds’ Earthship design integrates six principles:

  1. Thermal/[[solar-thermal|solar heating]] and cooling — [[passive-solar|passive solar]], earth-mass walls, no fossil-fuel HVAC
  2. Solar/wind electricity — fully [[off-grid-living|off-grid]] power
  3. Contained sewage treatment — botanical cells process blackwater into food production
  4. Water harvesting — 100% rainwater and snowmelt; four-stage filtration and reuse
  5. Food production — indoor greenhouse running the building’s south face
  6. Building with natural and recycled materials — earth-rammed tires, glass bottles, aluminum cans

Construction

Walls are built from used automobile tires packed with earth — each tire becomes a 300-lb earth-filled brick. Tire walls run east-west on the north side (high thermal mass, no exposure). The south face is a tilted glass greenhouse, capturing winter sun and growing food. Interior walls often use earth-and-glass-bottle construction.

Roof catches rainwater into cisterns; water flows through filters to indoor uses; greywater feeds botanical-cell planters; blackwater feeds outdoor planters or [[constructed-wetlands|constructed wetlands]]. [[solar-pv|Solar PV]] panels and battery banks power lights and appliances.

Communities

  • Greater World Community (Taos, NM) — Reynolds’ main testing ground; ~70 Earthship homes
  • REACH Community (Taos) — larger Earthship development
  • International Earthship sites — Bolivia, Sierra Leone, Haiti, India, Europe; disaster-relief Earthships built by Reynolds’ Earthship Biotecture

Critiques

Honest assessment:

  • Performance varies widely; some Earthships work as designed, others have issues
  • Tire walls require careful detailing for VOC management
  • Cost is moderate; not as low as advocates sometimes claim
  • Climate-specific — most work best in arid sunny climates; northern/wet climates require modification

The design is influential beyond direct adoption; Earthship principles inform much of contemporary [[off-grid-living|off-grid]] and natural-building design.

See also

Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.

  • Shares approach with: [[passive-solar]] · [[rainwater-harvesting]]
  • Member of: [[practice]]

Sources

  • Earthship Volume I, II, III, Michael Reynolds (Solar Survival Press)
  • Earthship Biotecture (earthshipglobal.com)
  • Multiple Earthship documentation and academic studies

Rooted in life.

What links here, and how

Inbound connections from across the wiki, grouped by lens and by relationship. These appear automatically — every entity page declares what it links to, and that data populates here on the targets.

Practical

shares approach with

  • Off-grid living Earthships are among the most-developed integrated off-grid building designs
  • Passive solar design Earthships are extreme passive-solar designs taking the principle to its logical end — fully off-grid, food-producing, water-cycling
  • Rainwater harvesting Earthships harvest 100% of household water from rainfall — extreme application of the practice

3 inbound links · 3 outbound