The General Administration of Market Supervision issued the first national standard in the field of perovskite photovoltaic

On September 18, the official of the General Administration of Market Supervision announced the news of "City Talk". The General Administration of Market Supervision (National Standards Committee) issued the first national standard in the field of perovskite photovoltaic, Photovoltaic Devices Part 12: Methods for Measurement of Current-Voltage (I-V) Characteristics of Perovskite Photovoltaic Cells and Modules (GB/T 6495.12 — 2026) will be formally implemented in 2027. The standard was proposed by the Ministry of Industry and Information Technology and is under the jurisdiction of the National Technical Committee for Standardization of Solar Photovoltaic Energy Systems (SAC/TC90). Driven

by the goal of "double carbon", perovskite photovoltaic technology is developing rapidly, moving from laboratory to large-scale production of gigawatts, and the demand for testing and certification of batteries and components is increasing. However, the performance of perovskite devices is easy to fluctuate under the change of light and voltage, the test results are not stable enough, and the area definition has not yet been unified, so the test methods commonly used in crystalline silicon and thin film batteries in the past are difficult to apply directly. The industry urgently needs a set of unified and reliable measurement standards.

Simply put, the standard is to solve how to measure perovskite batteries and components accurately and fairly . The performance of perovskite devices will change under light, which can not be measured as quickly as traditional crystalline silicon. The standard system specifies test equipment, pre-test stabilization requirements , how to measure current-voltage characteristics, how to calculate area and power generation efficiency , etc.

According to the different needs of laboratory research and development and large-scale production, the standard gives a rapid measurement method, and supplements the maximum power point tracking method, Ten-Point quasi-steady-state fitting method (arbitration method), progressive method and other quasi-steady-state test methods which are closer to the real working state.

At the same time, the standard unifies the definition and efficiency calculation of total area and diaphragm area, so that the results measured by different institutions can be compared on the same scale, and finally a set of verifiable and reproducible standardized test process is formed.

This standard constructs a scientific, reliable and popularizable method system for measuring I-V characteristics of perovskite photovoltaic, which fills the gap in the field of standardized testing of emerging photovoltaic technology in China. It will become a "unified yardstick" for testing and certification, product research and development, production line quality control and trade delivery, and provide key technical support for the improvement of the follow-up standard system, the formulation of international standards and the promotion and application of perovskite photovoltaic industrialization.