Clarification on Key Differences Between IEEE C37.118-2018 and IEEE C37.118-2024 Standards

Hello everyone,

I’m currently working on an application involving synchrophasor data and PMU communication, and want to explore the practical differences between the IEEE C37.118-2018 and the IEEE C37.118-2024 standards.

Could someone please help clarify the main technical and implementation differences between these two versions? Specifically, I’m interested in how updates in the 2024 revision might impact data formats, communication protocols, performance, or interoperability in typical PMU/PDC deployments.

Any insights, references, or experience-based guidance would be greatly appreciated!

Thank you in advance for your help.

Best regards,
Rajeshwari