Perovskite electronic shelf labels are a new tool for the FMCG / Retail industry


Saule Technologies launches the world’s first electronic labels based on perovskite photovoltaic cells.

The Perovskite Electronic Shelf Label (PESL) is the second product of Willow Technologies using perovskite photovoltaic cells, the first being large cells intended for building facades. The pioneering new solution represents the IoT category – it is an intelligent system for operating electronic labels. It is important to note that, unlike traditional ESLs, it is not powered by a battery but by a perovskite photovoltaic cell.

Electronic tags with their own virtually inexhaustible power source, requiring no costly and time-consuming battery replacement, are not only cheaper and more convenient to use than traditional ESLs, but also provide power efficiency and affordability. batteries that are very harmful to the environment. And this is an important step in the implementation of the sustainable development strategy.

Using perovskite photovoltaic cells, PESLs are a revolutionary solution also because of their unique abilities to communicate with retail store customers. They dramatically reduce product labeling time and, most importantly, allow real-time price verification.

Saule Technologies’ perovskite photovoltaic cells, while being much more efficient than, for example, Amorphous the silicon photovoltaic cells used in calculators show a high efficiency also in artificial light. As they continue to function efficiently even when the light rays fall at a wide angle – as is the case with pendant lights, they can feed the products arranged on the lower shelves. In addition, unlike silicon solar cells, they are very thin, light and flexible.

Given these unique properties, perovskite photovoltaic cells do not take up much space on PESLs, but they are so efficient that they can power the electronic devices that operate them, including the display and module. wireless communication. This makes it possible to remotely change the messages displayed on the label even several times a day, making it easier, for example, to sell products with an approaching expiration date.

“With PESLs, retail chains will be able to quickly reduce the prices of food products that are approaching their expiration date. This will prevent the waste of huge amounts of food, which in a world where so many people still go hungry, seems unaffordable. The new business tools provided by PESL will save us millions of tonnes of food every year, ”said Olga Malinkiewicz, CTO of Willow Technologies.

The new technology will pave the way for various previously unavailable marketing and advertising tools. For example, stores may launch occasional short-term (eg one hour) price discounts on selected products to increase customer satisfaction and loyalty.

Along with the labels, Saule Technologies also provides complete integrated computer and hardware systems using PESL compatible data transmitters, as well as cloud-based computation and analysis capabilities. The first PESL technology tests will be carried out in cooperation with Google Cloud Platform.

As the operating process is simple, price changes can be introduced centrally and synchronously across all retail stores in the chain.

“It’s amazing what this one-click solution can do. It makes it possible to modify the prices of products placed on millions of shelves, in thousands of stores, ”noted Artur Kupczunas, CEO of Saule Technologies.

The PESL developed and produced by Saule Technologies, a world leader in perovskite technology based in Poland, is equipped with an e-ink screen (bi or tricolor), a wireless communication module and a perovskite photovoltaic cell as a power source.

Saule Technologies offers PESL in a Vary in shapes, colors and sizes (from 1.54 ” to 12.5 ”). In addition to the price, they can display text and graphics, thus serving as an effective platform to convey additional messages: advertisements, announcements of special discounts, loyalty campaigns, etc. With an option to remotely (wirelessly) modify display content up to 15 times per day, the lifespan of the PESL is approximately 10 years.


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