Webinar Registration: SunSpec Modbus Development Webinar

Join SunSpec Alliance for an important webinar introducing the restart of the SunSpec Modbus Workgroup. As distributed energy resources become more complex and interconnected, the need for secure, interoperable communication frameworks is more urgent than ever. The SunSpec Modbus protocol has long served as a foundational standard for device-level interoperability in the DER ecosystem.

This webinar will outline the 2025 priorities for the Modbus Workgroup, including:

• Development of testing procedures for Modbus over TLS (including mutual TLS proposals)

• SunSpec Modbus client testing and test results reporting

• New profile development for SAE J3068, MESA, and region-specific implementations in Poland, Germany, and Denmark

• Support for grid-forming inverters and modular energy storage systems

We will also explain how to participate in the workgroup, review membership and Limited Participation Agreement options, and answer questions live.

Whether you’re a technology developer, grid operator, system integrator, or standards enthusiast, this session will give you the insight and access you need to shape the next phase of SunSpec Modbus development.

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