APPLICATION ASSESSMENT · UPDATED 2026-07-28
Retail IoT and Electronic Shelf Label Energy Harvesting
Retail lighting often follows regular business hours, but shelf level, product shading, and lamp spectrum change the light that reaches a label. Start with measurements at the installed position and event-level device energy.
On-site decision table
| Decision factor | Measure on site | Do not conclude from this page |
|---|---|---|
| Shelf illuminance | Log light, spectrum changes, closed hours, and seasonal merchandising at the planned label height. | Store-average illuminance does not represent the light received on every shelf. |
| Refresh and radio energy | Measure each display refresh, radio receive, acknowledgement, retry, and standby event with its daily frequency. | Low image-retention power does not make refresh and communication energy negligible. |
| Collector area and shading | Check usable label area, orientation, rail geometry, product and customer shading, cleaning, and maintenance effects. | Nominal area does not establish equal effective light after installation. |
| Storage | Size capacity, conversion loss, peak output, and maintenance strategy for closed, dimmed, or continuously shaded periods. | Average energy balance does not show sufficient reserve during batch refreshes or low-light periods. |
Public sources and boundaries
Engineering assessment: This page treats electronic shelf labels as a real retail IoT scenario for energy budgeting. It is not a SolaEon ESL product, partnership, deployment, performance, or supply claim.
Technical attribution: Yang Xudong, Chief Scientist at SolaEon and professor at Shanghai Jiao Tong University. This attribution applies to the energy-harvesting evaluation framework only; it is not a product-performance guarantee or third-party news attribution.
Do not infer: Feasibility requires shelf light logs, terminal load measurements, and prototype validation. Review the consumer-application evidence center for the consumer applications that SolaEon has publicly documented.
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Frequently asked questions
Can electronic shelf labels directly remove batteries?
Do not conclude that directly. Put measured shelf light, event energy, and storage margin in one budget and validate a prototype.
Is this a released SolaEon product?
No. This page is an engineering scenario assessment, not a SolaEon product, specification, or supply statement.