Zhen Wang enhanced the PowerGridModel/power-grid-model repository by developing robust data validation features for current sensors. Focusing on backend development with Python, Zhen implemented validation logic to support both symmetrical and asymmetrical current sensors, introducing checks for required fields and terminal types. This approach improved data integrity and reduced the risk of invalid sensor data propagating through grid simulations. The work included comprehensive unit testing to ensure reliability and maintainability. By establishing a foundation for broader sensor validation, Zhen’s contribution addressed a critical need for accurate sensor measurements, strengthening the overall robustness of the power grid model’s data processing pipeline.