Experts find plants’ electrical rhythm could be a renewable energy source
Plants seem to have the power to emit an electric potential when they pull water from their roots to nourish their stems and leaves.
Scientists have explored the ability of this electric surcharge to harness a potential renewable energy source. The movement of ions and water through the plant’s structure paved the way for them to tap into a new energy source.
This particularly sheds light on the circadian rhythms which allow plants to adapt and cope with changing environmental conditions and their ability to synchronize themselves with predictable changes, for instance the change from day to night.
Researchers particularly analyzed Water hyacinths and lucky bamboo which generated an electrical rhythm that could be harnessed as an eco-friendly energy source.
Circadian rhythm impacts electrical power
A statement by scientists noted that like all living things, plants are subject to a circadian rhythm. In plants, this daily cycle involves capturing light for photosynthesis absorbing water and nutrients during the day, while at night, growth processes slow down.
Researchers from the Indian Institute of Technology (IIT) Kharagpur undertook the study depicting plants’ biological potential to produce voltage.
“This streaming potential, essentially a consequence of the natural energy gathered in the plant, offers a renewable energy source that is continuous and can be sustainable over long periods,” author Suman Chakraborty stated.
“The question we wanted to answer was how much potential it can produce, and how is electric potential influenced by the plant’s biological clock?”
While investigating the energy potential, the scientists inserted electrodes into the stems of water hyacinths and attached reservoirs with electrodes to lucky bamboo.
Eureka: plants produce electricity in a cyclic rhythm
Experiments showed that the electrical potential in plants varies in a cyclic rhythm that matches their daily biological processes. This potential increases with decreased ion concentration or increased pH in the fluid, linking it to the plant’s water transpiration and ion transport mechanisms.
“Our eureka moment was when our first experiments showed it is possible to produce electricity in a cyclic rhythm and the precise linkage between this and the plant’s inherent daily rhythm,” Chakraborty added. “We could exactly pinpoint how this is related to water transpiration and the ions the plant carries via the ascent of sap.”
Chakraborty also noted that not only did the researchers rediscover the plant’s electrical rhythm, articulating it in terms of voltages and currents, alongside potentially tapping electrical power output from them in a sustainable manner with no environmental impact and no disruption to the ecosystem.
“The findings could help develop biomimetic, nature-inspired systems that can address the global energy crisis with an eco-friendly, sustainable solution in which planting a tree not only relieves the crises of climate change and declining environmental quality but also provides a way to harness electricity from it.”
Now, the findings demonstrated that plants generate an electrical potential that varies with their daily biological cycles.
This led experts to believe the natural electrical potential could be harnessed as a renewable, eco-friendly energy source, offering a sustainable solution to the global energy crisis without harming the environment.
Source: Interesting Engineering
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Experts find plants’ electrical rhythm could be a renewable energy source