Normally, living walls are extravagantly impractical things to have in your home. But in the case of this one designed by IaaC Student Elena Mitrofanova, the opposite is true, because this wall would use biophotovoltaics to generate electricity. The process involves symbiotic bacteria, compounds, soil made out of hydrogel and carbon fibers, electrons, and anodes, and if you think you've got a chance of understanding any of that here's a video that goes into greater depth.
• This Modular Green Wall System Generates Electricity From Moss [Arch Daily]