Rainwater-driven microbial fuel cells for power generation in remote areas

https://phys.org/news/2022-01-rainwater-driven-microbial-fuel-cells-power.html

"rainwater as a sustainable analyte in an air-cathode microbial fuel cell (MFC)... open circuit potential (OCP) of 553 ± 2 mV, without the addition of nutrients at ambient temperature. Addition of nutrients further increased the cell voltage... maximum power output of 7 ± 0.1 mWm-2 at a corresponding current density value of 44 ± 0.7 mAm-2 at 30 degrees Celsius... During summer, Lactobacillus spp. formed the dominant electroactive genus, while Staphylococcus spp. dominated the winter rainwater"