Plant-powered IoT sensor talks to space satellite

Plant-e, Lacuna create plant-based satellite transmission service
Using plants as the energy source, a pilot service developed by Plant-e and Lacuna Space transmits messages to an orbiting satellite. (Lacuna)

A plant-powered sensor has successfully transmitted to a satellite in space. Using plants as the energy source, the pilot service was developed by Plant-e and Lacuna Space. Because the sensor doesn’t need batteries, it reduces cost, maintenance requirements, and environmental impact. As long as plants continue to grow, electricity will be produced.

Combining the energy harvesting technology developed by Plant-e with the power efficient devices from Lacuna Space, these self-sustainable devices operate independent from sunlight, day and night. The Internet of Things (IoT) prototype device, developed by the two companies, uses the electricity generated by living plants to transmit LoRa messages about air humidity, soil moisture, temperature, cell voltage and electrode potential straight to Lacuna’s satellite.

According to the companies, future applications lie in critical data gathering from agricultural land, rice fields or other aquatic environments without the need for any external energy sources. The pilot service is supported by the ARTES programme from the European Space Agency (ESA).

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Plant-e, a start-up from Wageningen, the Netherlands, has developed a technology to harvest electrical energy from living plants and bacteria to generate carbon-negative electricity. The output generates enough energy to power LEDs and sensors in small-scale products.

“This collaboration shows how effective plant-electricity already is at its current state of development,” said Plant-e CEO Marjolein Helder, in a statement. “We hope this inspires others to consider plant-electricity as a serious option for powering sensors.”

Lacuna, based in the UK and the Netherlands, is launching a Low Earth Orbit (LEO) satellite system that will provide a global Internet-of-Things service. The service allows collecting data from sensors even in remote areas with little or no connectivity. Lacuna Space is initially offering a pilot service with one satellite in orbit, with three more satellites awaiting launch during the next few months.

“This opens up a new era in sustainable satellite communications,” said Rob Spurrett, CEO and co-founder of Lacuna Space, in a statement. “There are many regions in the world that are difficult to reach making regular maintenance expensive and the use of solar power impossible. Through this technology we can help people, communities and companies in those regions to improve their lives and businesses.”

 

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