A groundbreaking UK startup called Bactery is turning soil into electricity using naturally occurring bacteria, offering a revolutionary new form of renewable energy. The company, a spinout from the University of Bath, has developed bacteria-powered batteries called “Bacteries” that harvest clean energy from microbes in the ground.
The technology works by harnessing electrigens—special microorganisms in soil that generate electrons while consuming organic compounds. These electrons are captured by the device and forced through an external circuit, producing a steady trickle of electricity. Unlike solar panels, Bactery generates power 24/7, even when the sun isn’t shining, making it a perfect complement to traditional renewable systems.
Key data points showcase the innovation’s potential:
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A shoebox-sized container generates 5 watts perpetually, enough to power sensors, lights, or communication devices
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The prototype produces 0.2 watts per square metre of soil
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The technology has a usable lifespan of over 25 years with zero maintenance expenses
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Anticipated cost is around £25 per unit with “install and forget” functionality
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Lifetime costs are up to 5,000 times lower than solar energy
Bactery’s founder CEO Jakub Dziegielowski says the end goal is reaching 4 watts per cubic metre, and labs already have systems six times more powerful. By scaling devices underground in an average garden, homeowners could offset most of their household electricity bills year-round.
The startup officially launched on June 1, 2024, and is currently patenting the technology. A market-ready product is expected by 2026, with small-scale production starting the following year. This innovation could redefine sustainable energy for farming and eventually power homes directly from the earth.
FAQs [Frequently Asked Questions]
1. How does Bactery’s bacteria battery generate electricity?
Bactery uses Soil Microbial Fuel Cells that capture electrons from electrigens—microorganisms in soil that generate electrons while consuming organic compounds. These electrons flow through an external circuit, producing electricity.
2. How long does Bactery’s technology last and what’s the cost?
The bacteria-powered battery has a lifespan of over 25 years with no maintenance costs. Each unit is anticipated to cost around £25, offering “install and forget” functionality.
3. Can gardens power homes with Bactery’s technology?
Yes, by scaling devices underground in an average garden, homeowners could offset most household electricity bills year-round. The technology generates 5 watts perpetually from a shoebox-sized container.