Algae has powered a computer for a year at Cambridge University. The bacteria runs on light and water and creates a small electrical charge.
The Cambridge team have now devised an algae unit the same size as an AA battery. It is made from recycled materials and contains a species of algae called synechosystis.
Biochemists were impressed by how consistently the algae system worked over a long period of time. Electronics are needed in everyday items and we are not going to have enough lithium-ion batteries to power them all. So, algae batteries could be the solution.
Watch the World Economic Forum’s video to find out more: