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Open Smart Grid Protocol (OSGP)

We have a history of adopting open standards when possible, and working collaboratively with other organizations to create them when there are gaps. Open standards prevent vendor lock-in and the increased costs and reduced innovation that typically accompany closed systems.

Why Utilities Need an Open Standard Protocol for Smart Grid Devices

The Open Smart Grid Protocol (OSGP) is targeted at utilities that want a multi-application smart grid infrastructure instead of a basic single function Automated Metering Infrastructure (AMI). OSGP is not just for meters, it’s for a variety of smart grid devices. Energy Service Network Association (ESNA), a non-profit corporation composed of utilities, manufacturers, and integrators, is responsible for publishing, maintaining, and certifying devices compatible with OSGP.

OSGP is available from European Telecommunications Standards Institute (ETSI). To help partners adopt the OSGP standard quickly, Echelon provides an implementation in the form of a module containing the PLC communications, the OSGP protocol, and the microcontroller and memory subsystem required to hold smart grid device data.

As an open standard without any licensing or intellectual property encumbrances, OSGP enables:

  • Development of interoperable smart meters and other smart grid devices by multiple vendors
  • A large selection of products for utilities

Multi-Application Architecture

OSGP provides secure, scalable control networking services for any device connected to the low-voltage grid. It also supplies critical information about the health of the distribution line itself, which further improves reliability and lowers operating costs.

At the Physical Layer, OSGP uses ETSI TS 103 908 as its power line communication standard, but it is not tied to a specific communications physical layer.

For the Networking Layer, OSGP uses EN14908-1 with extensions for security, authentication, and encryption.

For the Applications Layer, OSGP adapts the ANSI C 12 table structure for a networking protocol, not just for meters but for other utility related devices as well.

The protocol supports the following capabilities:

  • Intelligent, directed repeating of power line signals for optimal bandwidth utilization. Data concentrators coordinate with OSGP meters to create an adaptive, directed, self-healing mesh.
  • Automatic topology management, meaning that OSGP-based systems automatically discover the power line topology, automatically discover meters and other devices connected to the power line, and can report this information back to the utility data center.
  • Rich power-quality data to enable sophisticated smart grid applications.
  • Secure firmware upgrades over the network.
  • Non-meter devices can use the OSGP infrastructure to communicate with the utility’s enterprise software. This makes the meter and other OSGP device data available to new smart grid applications.