IEC TC57: Report on WG21 Interfaces and protocol profiles relevant to systems connected to the electrical grid P. Ferstl August 2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION SC25 WG1 N1567

2 TC 57 WG 21 Mission & Scope  Mission Define interface between the smart grid and residential and commercial building and industrial energy management systems and the smart grid.  Scope Identification of use cases which involve systems connected to the electrical grid. The focus is on interaction between power system management (TC 57 standards) and H/B/I energy management systems. Development of requirements and international standards for system interfaces, communication protocols and profiles in consideration of  Interconnecting a large number of geographically distributed systems  Domain specific protocols for industrial, home and building automation  State-of-the-art wireless and wired communication  Efficient installation, commissioning and maintenance

3 TC 57 WG 21 Visualization of Scope Grid Power Management SystemH/B/I Automation System Systems Interface Power Management System DER Automation System DER TC 57 WG 21 TC 57 WGs TC 65 ISO TC 205 JTC1 SC25 …. TC 57 WG 17

4 TC 57 WG 21 WG21 Members  33 members  Participants from 11 countries  Brazil  Croatia  France  Germany  Great Britain  Japan  Netherlands  Russia  Spain  Switzerland  USA

5 TC 57 WG 21 Recent and planned meetings / participation DateLocation# Participants 09/11Frankfurt/M, Germany7 members 4 guests 01/12Munich, Germany8 members 5 guests 03/12Frankfurt/M, Germany10 members 3 guests 10/12Frankfurt/M, Germany

6 TC 57 WG 21 Point of Common Coupling XPoint of Common Coupling (PCC) Utility Power System LoadGenerationStorage XXX Local Power System X = Electrical Connection Point (ECP) Grid Power Management SystemH/B/I Automation System Power Management System Automation System DER Systems Interface DER

7 TC 57 WG 21 Domain Split for Systems Interface Home/ Building / Industry Automation System Description of Point of Common Coupling Based on object models for DER Grid Operations Technical Grid Operations (Power) Demand Response commercial (incl. direct load control) Commercial Operations (Energy) Revenue Metering (CIM) COSEM IEC CIM Web Services?SML/SOAP? Data Model Communication LoadGenerationStorage Life cycle management of a dynamic eco system

8 TC 57 WG 21 Current work  Use case team  Technical report Use Cases and Requirements  First Draft: 12/2012  Architecture team  Architecture  First Draft: 12/2012