ESNA - What you always wanted to know about OSGP


What is OSGP?
The Open Smart Grid Protocol (OSGP) is targeted at utilities that want a multi-application Smart Grid infrastructure instead of a meter centric Automated Metering Infrastructure (AMI). OSGP is not just applicable for meters; it’s for a variety of smart grid devices. Energy Services Network Association (ESNA), a non-profit corporation composed of utilities, manufacturers, and integrators, is responsible for promoting the adoption of OSGP, supporting the publishing and maintaining of the OSGP specifications and standards, as well as supporting the certification process of OSGP compliant devices.

The OSGP application specification, ETSI GS OSG 001, is available from European Telecommunications Standards Institute (ETSI).  ETSI produces globally applicable standards for Information and Communications Technologies (ICT), including fixed, mobile, radio, power line, and Internet technologies. ETSI and CENELEC are officially recognized by the European Union as European Standards Organizations.

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 smart grid products for utilities

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

At the Physical Layer, OSGP currently uses ETSI TS 103 908 as its power line communication standard; however the OSGP application layer is independent of the physical layer, so it is not tied to a specific communications medium.

For the Networking Layer, OSGP uses ISO/IEC14908-1.

For the data model, OSGP adapts the IEEE 1377 and the ANSI C 12 table structure for a networking protocol, not just for meters but for other utility related devices as well and adds extensions for security, authentication, and encryption.

The protocol supports the following capabilities:

  • End-to-end device communications & control
  • Three tier architecture for decentralized applications
  •  Multi-vendor, multi-device interoperability
  • Reliable communications (highest reliability in the industry, > 99.8%)
  • 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 centre
  • 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.

Advantages of OSGP

In OSGP interoperability, privacy and security are cornerstones in the vision of further developments, because each vendor will easily find the way to communicate its added value services. Today there are more than 4 million smart meters installed and operating that are based on OSGP, at some of the largest and most advanced smart metering projects ever implemented. For instance, in Sweden, Vattenfall and E.ON deployed more than one million OSGP compliant meters and benefit from superior performance and reliability of OSGP.

In Denmark, more than 800,000 OSGP compliant meters have been deployed by a number of utilities including SEAS/NVE, NRGi, and EnergiMidt. These smart meters like others in OSGP deployments, report not just hourly readings, but provide extended load profile data, power quality reports, and integration with home energy networks with perfect daily performance of every meter between of between 99.8 and 100%.

OSGP started with a networked design for all of the smart grid devices on the edge. In contrast, DLMS was designed for automatic meter reading. By the way, OSGP’s open network and standards philosophy could expand in the future to incorporate the integration and interworking with DLMS/COSEM devices, something that DLMS is not prepared to support. OSGP is rapidly gaining more visibility with an ever-growing ecosystem of industry vendors offering OSGP compliant products to utilities on all continents.

OSGP Vendors

OSGP is supported by a variety of meter and smart grid device suppliers that offer or plan to offer solutions compliant with the standard including, Romanian AEM, General Electric, Mitshubishi Electric, Korea’s VIDCOM, Malaysia's Comintel, China’s Holley Metering, Brazil’s ELO, Austria’s Ubitronix and Kapsch, Germany’s Diehl, and Görlitz with a Landis & Gyr based solution and not to forget US based company Echelon. Besides that several companies are in the application process.

OSGP Conformance testing is handled by DNV-KEMA. Based on successful independent Conformance testing the OSGP UA, ESNA will provide the certificate of "OSGP compliance".

Harry Crijns
ESNA secretary

July 2013

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