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UK Firm Harnesses Garden Bacteria to Produce Renewable Electricity
A UK startup is developing a novel clean energy technology that generates electricity from naturally occurring bacteria in soil, offering a sustainable alternative to conventional batteries for low-power devices.
The technology, created by Bristol-based Bactery, uses a microbial fuel cell that captures electrons released by soil bacteria as they break down organic matter. These electrons are converted into a small but continuous electrical current without harming the surrounding ecosystem.
The years of research by chemical engineer Dr. Jakub Drzazgowski and Dr. Ben Marais show that the system is based on naturally occurring microorganisms like Geobacter and Shewanella, which produce electricity through their normal metabolic processes. Unlike traditional batteries, the device does not require charging and can continue generating power as long as the soil remains biologically active.
About the size of a small lunch box, the prototype produces around 0.2 watts of continuous power, enough to operate environmental sensors, precision agriculture equipment, and remote monitoring devices. Bactery aims to increase the output to four watts in the future, making the technology suitable for a wider range of applications.
The company is currently targeting the agricultural sector, where soil-powered devices could eliminate the need for batteries and extensive wiring in remote locations. Researchers believe the technology could also support environmental monitoring and outdoor sensor networks that require a low-maintenance energy source.
Recent research published in Frontiers in Computer Science highlighted microbial fuel cells as a clean-energy solution for low-power electronics, due to their ability to operate in environments where conventional power sources are impractical.
Looking ahead, Bactery is aiming its usage for household technology. The company has already demonstrated a small soil-powered garden installation capable of generating electricity while blending into the landscape, illustrating how biological energy systems can become part of everyday infrastructure one day.
