Farming electricity from plants

Sunday, June 7, 2015

A Dutch start-up company, Plant-e, is harnessing electricity from living plants to power cell phone chargers, Wi-Fi hot spots and even LED street lights in two sites in the Netherlands. The goal is to provide electricity to the quarter of the world's population that doesn't have it.

Plant-e uses a byproduct of photosynthesis, collecting electricity from plants growing in two-foot square plastic containers. As explained on the website inhabitat.com, growing plants produces more sugar through photosynthesis than the plants can use. The excess is cast out through their roots into the surrounding soil where it breaks down in protons and electrons. Plant-e electrodes in the soil collect that electricity.

Company founders want to use plants growing near rice paddies and wetlands. The company is a spinoff from the sub-department of Environmental Technology of Wageningen University. BF