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**This documentation was created with assistance from Claude AI (Anthropic).**
While the technical calculations, research, and system designs have been developed through rigorous analysis, readers should be aware of the following:
- **Verify calculations independently** - All engineering calculations, energy budgets, and production estimates should be validated by qualified professionals before implementation
- **Regulatory compliance** - Local regulations, permits, and safety standards must be verified for your specific jurisdiction
- **Site-specific adaptation required** - Designs are conceptual and must be adapted to local conditions, resources, and constraints
- **No warranties** - This documentation is provided for research and educational purposes only, with no guarantees of accuracy or suitability for any particular application
- **Consult experts** - Always engage qualified engineers, architects, agricultural specialists, and other professionals before implementing any system described here
The usual caveats for AI-generated content apply: information may contain errors, omissions, or outdated assumptions. Use this documentation as a starting point for further research and professional consultation, not as a complete implementation guide.
Using renewable energy to desalinate seawater for sustainable settlements and agriculture in coastal desert regions.
This project explores how solar-powered desalination can transform coastal desert areas into productive agricultural systems, creating food security and sustainable settlements where conventional agriculture isn't viable.
Scale: Self-sufficient operation for <10 people
- Water: 0.6 m³/day (600 L/day) via RO desalination
- Energy: ~6 kWh/day electrical + 28 kWh/day thermal (14 m² solar thermal collectors)
- Agriculture: 100 m² aquaponics + 24 chickens + 10 ruminants (5 sheep, 5 goats)
- Key Innovations: Rooftop salt ponds (194 m²) provide 273 kWh/day evaporative cooling + bermed earth-sheltered architecture + seawater cooling loop eliminate all evaporative water consumption
Scale: Export agriculture model
- Water: 923 m³/day desalination capacity
- Energy: 1 acre solar array
- Output: Feeds 7,000+ people through vegetable exports
- Challenge: Brine disposal and scaling complexity
Zero fresh water consumption for climate control by circulating seawater through building floors and walls.
Transform RO reject brine from waste stream to revenue stream through fractional crystallization. Produces 11+ tonnes/year food-grade sea salt.
Feed animals entirely from ocean resources (seaweed) and rainfall-fed browse (prickly pear, saltbush). No freshwater irrigation required.
Strategic use of partial earth-sheltering and green roofs provides passive climate control while maintaining natural light and ventilation.
Solar PV for electrical loads, solar thermal for DHW, refrigeration, and processing heat. Cheaper thermal storage (hot water) vs expensive battery storage.
Current Phase: Foundation Research (Phase 1)
Recent Milestones:
- ✅ Homestead-scale system design complete
- ✅ Below-grade construction feasibility analysis
- ✅ Mechanical wind power assessment
- ✅ Solar thermal expansion design (14 m² Phase 1)
- ✅ Salt market analysis and revenue modeling
- ✅ Feed self-sufficiency optimization
Next Steps:
- Detailed technical specifications
- Site selection criteria
- Phased implementation planning
- Pilot project development
- Read the Concept Documents - Understand the vision
- Explore the Homestead System - See the current design
- Check Open Questions - Areas under investigation
- Review the Roadmap - Project planning
- Research Documents - Calculations, feasibility studies, data analysis
- System Flowcharts - Visual system diagrams
- Energy Systems - Solar thermal and PV designs
- Agriculture Systems - Livestock and aquaponics
Primary Focus: Baja California Pacific coast
Applicable to any coastal desert region with:
- High solar radiation (5+ kWh/m²/day)
- Seawater access
- Limited freshwater resources
- Potential examples: Western Sahara, coastal Peru/Chile, Arabian Peninsula, Australian coast
$80,000-160,000 (varies with DIY vs contractor build)
$3,060-5,210/year ($255-435/month)
$60,000-190,000/year from salt production alone (wholesale gourmet pricing)
Net Result: Strong positive cash flow after initial investment
This is an open research project. Contributions welcome:
- Technical review and validation
- Regional adaptation studies
- Market research for different regions
- Engineering specifications
- Pilot project partnerships
- Concept Documents - High-level vision and approach
- Research Documents - Data, calculations, feasibility studies
- Technical Specifications - Engineering details for implementation
- Design Documents - System integration plans
- Site Studies - Location-specific analyses
February 6, 2026:
- Solar thermal system finalized at 14 m² Phase 1 (1 fridge + DHW)
- Updated homestead capital costs to $80K-160K
- Completed waste heat recovery cascade design
February 5, 2026:
- Corrected salt pond sizing with batch operation cycles
- Added rooftop pond option (73% land savings)
- Below-grade construction analysis completed
- MkDocs Material Documentation
- Reverse Osmosis Fundamentals
- Solar Thermal Collectors
- Aquaponics Guide
This documentation is built with MkDocs and Material for MkDocs.