Breakdown by field
Energy (48.6% – 387 projects)
Rocket stove, solar oven, wind turbine, biogas, …
Food (32.7% – 260 projects)
Lactofermentation, Spirulina, Mushrooms, …
Water (29.4% – 234 projects)
Biosand filter, ram pump, solar desalinator, phyto-purification, …
Waste (26.6% – 212 projects)
Vermicomposting, Black Soldier Fly, Plastic recycling machines, …
Farming (25.4% – 202 projects)
Permaculture, Hydroponics, Mushroom cultivation, …
Housing (24.5% – 195 projects)
Soil-straw building, bioclimatic houses, yurt, …
Materials (17.7% – 141 projects)
Myco-materials, Cob, Vegetable Leather, …
Tools (14.8% – 118 projects)
Pedal-powered machines, hand-tools, DIY farming machines, …
Hygiene (13.6% – 108 projects)
Composting toilets, shower loop, feminine protection, …
Health (10.2% – 81 projects)
Herbalism, natural cosmetics, …
Mobility (7% – 56 projects)
Cargo bike, sailing, biodiesel, …
Communication (3.8% – 30 projects)
Ham radio, local internet, recycled computer, …