Overview
A global consensus has been achieved regarding testing guidelines for indoor photovoltaics (iPV). These guidelines aim to standardize the measurement and reporting of performance and stability for solar cells operating under indoor lighting conditions. Indoor photovoltaics are designed to convert ambient light from sources such as LEDs and fluorescent lamps, commonly found in homes and buildings, into electrical energy. This capability is presented as a mechanism for powering various low-power electronic devices, including self-powered sensors, remote controls, wearables, and the extensive network of connected devices anticipated within the Internet of Things (IoT).
Research Context
The field of solar cells designed for outdoor applications has historically benefited from established standards for measuring and reporting performance and stability. These standards provide a clear, agreed-upon framework for evaluating and comparing photovoltaic technologies exposed to sunlight. In contrast, the application of solar cells within indoor environments, specifically under artificial lighting, has lacked a comparable consensus-based standard. This absence presented a challenge for consistent evaluation and development within the iPV sector.
Findings
The core finding is the establishment of global consensus on testing guidelines for indoor photovoltaics. These guidelines address the previous absence of a standardized baseline for measuring and reporting the performance and stability of solar cells specifically when they are utilized under indoor lighting conditions.
Why This Matters
The established guidelines provide a foundational standard for the indoor photovoltaics sector. This standardization offers a consistent method for evaluating iPV performance, which can support the development and deployment of self-powered sensors, remote controls, wearables, and the broader ecosystem of connected devices in the Internet of Things, all of which require electricity from ambient indoor light sources.