This latest edition of the ACESM GCP marks a significant milestone in regional adaptation and international collaboration, paving the way for broader adoption and compliance across North America. The NA Annex introduces enhancements that either extend the existing ACESM GCP specifications or adjust certain behaviors to reflect local market requirements.

In addition to the 21 core use cases defined in the main ACESM GCP, the NA Annex adds:

• One new use case
• New objects and events
• Updates to existing use cases with additional objects
• Reclassification of selected objects as mandatory or optional, ensuring stronger alignment with North American regulatory and operational expectations

About the DLMS ACESM GCP

The AC Electricity Smart Meter Generic Companion Profile (ACESM GCP) defines 21 essential use cases to ensure electricity smart meters meet minimum functional expectations while maintaining flexibility for future scalability. Designed to meet the stringent demands of the global electricity metering market, the ACESM GCP provides a standardized framework that enables seamless data exchange across manufacturers — fostering a globally interoperable and future-ready smart metering ecosystem.

Find out more about the ACESM GCP and the North American Annex