Breakdown by field
Energy (46.8% – 507 projects)
Rocket stove, solar oven, wind turbine, biogas, …
Food (34.1% – 370 projects)
Lactofermentation, Spirulina, Mushrooms, …
Water (27.1% – 294 projects)
Biosand filter, ram pump, solar desalinator, phyto-purification, …
Farming (26.8% – 291 projects)
Permaculture, Hydroponics, Mushroom cultivation, …
Waste (26.3% – 285 projects)
Vermicomposting, Black Soldier Fly, Plastic recycling machines, …
Housing (25.3% – 274 projects)
Soil-straw building, bioclimatic houses, yurt, …
Materials (22.2% – 241 projects)
Myco-materials, Cob, Vegetable Leather, …
Tools (20.1% – 218 projects)
Pedal-powered machines, hand-tools, DIY farming machines, …
Hygiene (12.8% – 139 projects)
Composting toilets, shower loop, feminine protection, …
Mobility (10.9% – 118 projects)
Cargo bike, sailing, biodiesel, …
Health (9.8% – 106 projects)
Herbalism, natural cosmetics, …
Communication (5.6% – 61 projects)
Ham radio, local internet, recycled computer, …
Clothing (1.7% – 18 projects)
Clothing