Acronyms and Glossary Terms


Acronym Definition
CDM Canonical Data Model
CIM Common Information Model (IEC 61968/61970)
CSWG NIST's Cyber Security Working Group, part of the SGIP
DER Distributed Energy Resources
DR Demand Response
ECP Electric Coupling Point
EPS Electric Power System
EV Electric Vehicle
GWAC GridWise Architecture Council
IEC International Electrotechnical Commission
IED Intelligent Electronic Device
IEEE Institute of Electrical and Electronic Engineers
IETF Internet Engineering Task Force
IP Internet Protocol
IP Intellectual Property
MMS Manufacturing Messaging Standard
NIST National Institute of Standards and Technology
NISTIR NIST Interagency Report
OWL Web Ontology Language
PCC Point of Common Coupling
PEV Plug-in Electric Vehicle
PV Photovoltaics
SGIP Smart Grid Interoperability Panel
TLS Transport Layer Security
UML Unified Modeling Language
XML eXtensible Markup Language


Glossary of Key Terms and Information Standards

Term Definition
Area EPS An EPS that serves local EPSs
Semantic Of or relating to meaning, especially meaning in language.
Syntax The grammatical rules and structural patterns governing the ordered use of appropriate words and symbols for issuing commands, writing code, etc., in a particular software application or programming language.
GWAC Stack An eight-layer model.developed by the GridWise Architecture Council that describes the levels of standards and technologies required to support end-to-end interoperability.
IEC 61850

IEC 61850, Communications Networks and Systems for Power Utility Automation, specifies both abstract information models (semantic models) and communication services (application layer messaging services) focused on interactions to and between field devices.

IEC 61850-7-420 IEC 61850 abstract models for Distributed Energy Resources (DER), Distribution Automation (DA), and Plug-in Electric Vehicles (PEV)
IEC 61400-25 IEC 61850 abstract models for Wind Power.
IEC 61968

IEC 61968 defines abstract information models and abstract messaging interfaces for the major elements of an interface architecture for Distribution Management Systems (DMS) based on the Common Information Model (CIM).

IEC 61970

The IEC 61970 series is strictly an abstract model of power system configurations and organizations. Unlike IEC 61968, IEC 61970 does not include any messaging structures, which is assumed to be provided by mapping to other standards.

IEC 60870-5

(aka ICCP or TASE.2)

IEC 60870-6 (also known as Telecontrol Application Service Element (TASE.2) and Inter-Control Center Communications Protocol (ICCP)) is an "application layer" communication standard that defines message structures, some very basic object structures, and profiles of communication standards to be used within the transport layers.

The primary objective of IEC 60870-6 is to provide control center to control center data exchanges, but it has been applied to other domains with comparable requirements. Examples of such domains include: power plants, factory automation, and process control automation.

IEC 62351

Security standards for the IEC communication protocols

  • IEC 60870-5 (and its derivative, DNP3)
  • IEC 60870-6 (ICCP)
  • IEC 61850

These standards have been published by the IEC as IEC 62351, Parts 3-6, titled:

  • IEC 62351-3: Data and Communication Security – Profiles Including TCP/IP (these security standards cover those profiles used by ICCP, IEC 60870-5 Part 104, DNP 3.0 over TCP/IP, and IEC 61850 over TCP/IP)
  • IEC 62351-4: Data and Communication Security – Profiles Including MMS (these security standards cover those profiles used by ICCP and IEC 61850)
  • IEC 62351-5: Data and Communication Security – Security for IEC 60870-5 and Derivatives (i.e. DNP 3.0) (these security standards cover both serial and networked profiles used by IEC 60870-5 and DNP)
  • IEC 62351-6: Data and Communication Security – Security for IEC 61850 Peer-to-Peer Profiles (these security standards cover those profiles in IEC 61850 that are not based on TCP/IP – GOOSE, GSSE, and SMV)

Additional IEC 62351 standards include:

  • IEC 62351-1: Data and Communication Security – Introduction
  • IEC 62351-2: Data and Communication Security – Glossary
  • IEC 62351-7: Data and Communication Security – Network and System Management
  • IEC 62351-8: Data and Communication Security – Role-Based Access Control (RBAC) (to be released soon)
  • IEC 62351-9: Data and Communication Security – Key Management for Field Equipment (under development)


Smart Grid Official Definition

The federal Energy Independence and Security Act (EISA) of 2007, Title XIII, states:

It is the policy of the United States to support the modernization of the Nation's electricity transmission and distribution system to maintain a reliable and secure electricity infrastructure that can meet future demand growth and to achieve each of the following, which together characterize a Smart Grid:

  1. Increased use of digital information and controls technology to improve reliability, security, and efficiency of the electric grid.
  2. Dynamic optimization of grid operations and resources, with full cyber-security.
  3. Deployment and integration of distributed resources and generation, including renewable resources.
  4. Development and incorporation of demand response, demand-side resources, and energy-efficiency resources.
  5. Deployment of `smart' technologies (real-time, automated, interactive technologies that optimize the physical operation of appliances and consumer devices) for metering, communications concerning grid operations and status, and distribution automation.
  6. Integration of `smart' appliances and consumer devices.
  7. Deployment and integration of advanced electricity storage and peak-shaving technologies, including plug-in electric and hybrid electric vehicles, and thermal-storage air conditioning.
  8. Provision to consumers of timely information and control options.
  9. Development of standards for communication and interoperability of appliances and equipment connected to the electric grid, including the infrastructure serving the grid.
  10. Identification and lowering of unreasonable or unnecessary barriers to adoption of smart grid technologies, practices, and services.