This submission demonstrates Power Plant Model Validation as applied to online performance monitoring of grid events using phasor measurement unit (PMU) data, through a workflow that includes both manual adjustments and automated techniques. Both gas plant and steam plant examples are included. Data is from NASPI Technical Workshop - Model Verification Tools. The data is stylized and does not represent actual equipment. More details on the workshop can be found at the following link - https://www.naspi.org/node/528 - View it on GitHub