Saule Technologies launches electronic shelf labels powered by perovskite solar cells

Saule Technologies has unveiled its new PESL (Perovskite Electronic Shelf Label) technology - the world's first electronic price and advertising labels powered by perovskite photovoltaic cells. The devices enable wireless change of the messages displayed on it, and are said to have lifetimes of around 10 years.

PESL by Saule Technologies image

Saule Tech has already released large-scale PSCs intended for building facades, PSC-powered blinds, and now, this new product from the IoT category ' an intelligent system for handling electronic labels, powered by a perovskite solar cell instead of the traditional battery.

Saule Technologies sees such electronic labels with their own, virtually inexhaustible, power source as cheaper and more convenient to use than regular ESL labels.

Saule assures that perovskite cells are much more efficient than those used, for example, in calculators, based on amorphous silicon cells, and also maintain high efficiency in artificial light. The cells are to work efficiently even when the rays of light ' e.g. from ceiling lamps ' fall on them at a large angle, so they can also supply product labels on the lower shelves. Moreover, unlike silicon cells, they are very thin, light and flexible.

Thanks to these advantages, perovskite cells do not take up much space on the PESL label, and yet they are to be efficient enough to power the electronic devices that support it, including the display and wireless communication module. This will allow the operator to remotely change the message displayed on the label even several times a day, which will enable, among others, more effective sale of products with expiry date.

Saule Technologies is to offer not only PESL labels, but also complete, integrated IT and hardware systems, using data relays that support PESL labels and cloud computing and analytical capabilities. Price changes are to be carried out centrally and synchronously in all retail outlets of a given chain.




PESL labels from Saule Technologies are equipped with an e-ink display (two- or three-color), a wireless communication module and a perovskite photovoltaic cell as a power source. Saule Technologies offers PESL labels in a variety of shapes, colors and sizes (from 1.54 ' to 12.5 ').

In addition to the price, PESL labels can display additional text and graphics, so the display can be an effective platform for additional messages: advertisements or announcements about promotions. When changing the display content up to 15 times a day remotely, the lifetime of the evaluation label is approximately 10 years.

The first tests of the PESL technology will be carried out in cooperation with the Google Cloud Platform. Saule Technologies also gained the support of the Maspex Group, which will introduce PESL labels to selected stores in order to be able to measure the impact of this type of solutions on sales efficiency and business profitability. In addition, Saule is to cooperate with PKN Orlen in the area of ''labels.

Posted: Nov 26,2021 by Roni Peleg