Breakdown by field
Energy (48.3% – 478 projects)
Rocket stove, solar oven, wind turbine, biogas, …
Food (34.2% – 338 projects)
Lactofermentation, Spirulina, Mushrooms, …
Water (28.2% – 279 projects)
Biosand filter, ram pump, solar desalinator, phyto-purification, …
Farming (26.3% – 260 projects)
Permaculture, Hydroponics, Mushroom cultivation, …
Waste (25.8% – 255 projects)
Vermicomposting, Black Soldier Fly, Plastic recycling machines, …
Housing (25.6% – 253 projects)
Soil-straw building, bioclimatic houses, yurt, …
Materials (21% – 208 projects)
Myco-materials, Cob, Vegetable Leather, …
Tools (18.4% – 182 projects)
Pedal-powered machines, hand-tools, DIY farming machines, …
Hygiene (13.2% – 131 projects)
Composting toilets, shower loop, feminine protection, …
Health (10.4% – 103 projects)
Herbalism, natural cosmetics, …
Mobility (9.8% – 97 projects)
Cargo bike, sailing, biodiesel, …
Communication (5% – 49 projects)
Ham radio, local internet, recycled computer, …
Clothing (0.7% – 7 projects)
Clothing