NSMP Business Requirements Work Stream Smart Metering Infrastructure Minimum Functionality Specification

Transcription

1 National Smart Metering Program NSMP Business Requirements Work Stream Smart Metering Infrastructure Minimum Functionality Specification Version number: Version 0.24 Status: Author: Draft Business Requirements Work Group Date published: 12 th February 2010 File name: SMI_FS_v0.24.doc

2 Table of Contents 1 DOCUMENT CONTROL VERSION CONTROL APPROVAL REFERENCES INTRODUCTION MINISTERIAL COUNCIL ON ENERGY POLICY OBJECTIVES OVERVIEW OF SMART METERING INFRASTRUCTURE THIS SPECIFICATION LIMIT OF THIS SPECIFICATION USE OF ITALICISED EXPRESSIONS APPLICABLE METER CONFIGURATIONS AND STANDARDS COMMON APPLICABLE METER CONFIGURATIONS MAPPING OF METER CONFIGURATIONS TO MINIMUM FUNCTIONALITY APPLICABLE STANDARDS MINIMUM FUNCTIONALITY MEASUREMENT AND RECORDING REMOTE ACQUISITION LOCAL ACQUISITION VISUAL DISPLAY AND INDICATORS ON METER METER CLOCK SYNCHRONIZATION LOAD MANAGEMENT THROUGH A CONTROLLED LOAD CONTACTOR OR RELAY SUPPLY CONTACTOR OPERATION SUPPLY CAPACITY CONTROL HOME AREA NETWORK USING OPEN STANDARD QUALITY OF SUPPLY & OTHER EVENT RECORDING METER LOSS OF SUPPLY DETECTION REMOTE METER SERVICE CHECKING METER SETTINGS RECONFIGURATION SOFTWARE UPGRADES PLUG AND PLAY DEVICE COMMISSIONING COMMUNICATIONS AND DATA SECURITY TAMPER DETECTION INTEROPERABILITY FOR METERS/DEVICES AT APPLICATION LAYER HARDWARE COMPONENT INTEROPERABILITY METER COMMUNICATIONS: ISSUING MESSAGES AND COMMANDS APPENDIX A. GLOSSARY APPENDIX B. LIST OF METER PARAMETER SETTINGS APPENDIX C. DESCRIPTION OF REMOVING POWER TO A PREMISE APPENDIX D. BACKGROUND PAPERS File Name: SMI_FS_v0.24.doc Page 2 of 56

3 1 Document Control 1.1 Version Control Version Date Description Amended by th May 2009 First Draft Dr. Martin Gill th May 2009 Review by H. Koller Dr. Martin Gill nd May 2009 Meter configurations and synchronized load switching on the HAN Dr. Martin Gill th May 2009 Editorial agreed with Martin Gill H. Koller th May 2009 First draft of Performance Levels Dr. Martin Gill th May 2009 First draft of Glossary H. Koller th June 2009 BRWG amendments H. Koller th June 2009 Updates after PTWG meeting Dr Martin Gill th June 2009 Added description for 8&14 Reworded Performance Levels th July 2009 Update after BRWG #5 including SMCN data estimates (for scaling) Dr Martin Gill Dr Martin Gill th Aug 2009 Updates after BRWG #6 H. Koller and M. Gill th Aug 2009 Updates after BRWG #6 Issue as clean version at request of BRWG September 2009 Issued to BRWG for Workshop #7 held on 16/17 Sept A 26 September 2009 Marked updates after MRG and BRWG Workshop #7 held on 16/17 Sept09 H. Koller and M. Gill Dr Martin Gill and H. Koller Dr Martin Gill and H. Koller Delete Appendix C no longer required September 2009 New version with new document structure and new Appendices. Please refer to version 0.13A for audit trial of prior responses to action items from 10 Aug to 17 Sept 2009 from the Metrology Reference Group, Regulation Working Group and the Business Requirements Working Group. The Glossary in this document is for the SMI F.S. and not the NSMP. This version supersedes all previous versions. Dr Martin Gill and H. Koller File Name: SMI_FS_v0.24.doc Page 3 of 56

4 Version Date Description Amended by 0.14A 2 October 2009 Minor modifications in Version 0.14 issued to the BRWG on 28 Sept09. Replace references to AMI meter with SMI meter Delete typo in section single phase small meter remove small Add to Applicable Standards section For the Dedicated Load Control Relay - AS62054 parts 11 and 21 will apply. For the Supply Contactor - IEC will apply. Add Appendix D List of Related Technical Papers This version supersedes all previous versions. 0.14A_RWG 12 October 2009 Insert RWG Actions from the RWG workshop held on 8/9 October under Outstanding Actions for each function. This version supersedes all previous versions th October 2009 Update after BRWG #8 Review of tense Change to Smart Meter Management System Collection changed to Acquisition Inserted Appendix D to describe Supply Contactor States (List of Technical Papers now Appendix E) Additional edits and comments by H. Koller th November 2009 Technical drafting review to make the document comprehensible from a technical viewpoint, Address terminology, linkages, crossreferencing, consistency, flow, structure and formatting. This review did not seek to change any substantive technical content. Outstanding issues/actions have been consolidated in an issues register. Dr Martin Gill and H. Koller Dianne Shields Dr Martin Gill H. Koller Peter Van Loon Dr Martin Gill th November 2009 Clean Release of Version 0.20 Dr Martin Gill th November 2009 Update after BRWG #9 Dr Martin Gill th January 2010 Update after BRWG #10. Reformat of Load Control th February 2010 Updated following BRWG workshops of 10/11 Feb 2010 Dr Martin Gill Dr Martin Gill File Name: SMI_FS_v0.24.doc Page 4 of 56

5 1.2 Approval Authorised by Signature Date NSSC Program Director 1.3 References The following documents are referred to in this document. Document Name ADVANCED METERING INFRASTRUCTURE Minimum AMI Functionality Specification (Victoria) Business Requirements Work Stream Working Notes on Function Issues Version Release 1.1 September 2008 V0.4 National Electricity Rules Chapter 7 Metering Version 26 NMI M6 Pattern Approval and Verification of Electricity Meters: Definitions, Metrological and Technical Requirements Metrology Procedure: Part A National Electricity Market Document No: MT_OP1985v002 AS Demand response capabilities and supporting technologies for electrical products Part 3.1: Interaction of demand response enabling devices and electrical products Operational instructions and connections for air-conditioners UCAIug: AMI-SEC-ASAP AMI System Security Requirements Second edition, draft for comment February 2009 Version No: 2.01 Effective date: 1 July December 2008 V /17/2008 File Name: SMI_FS_v0.24.doc Page 5 of 56

6 2 Introduction This specification details the functionality requirements for Smart Metering Infrastructure and associated performance levels and service levels that will apply to metered electricity customer installations for Small Customers where a smart metering infrastructure roll out is mandated by a Jurisdictional Minister. All functionality requirements, performance levels and service levels are minimum requirements only and do not limit the implementation of smart metering infrastructure that has functionality or performance levels or service levels that exceed this specification. The functional specification is for information purposes. That information may be used: To inform the MCE as to how the minimum smart metering services will support the MCE Decisions 13 Dec 2007 and 13 June 2008 To provide a business definition for translation into regulatory instruments Smart metering infrastructure capability requirements 1 will be governed under the National Electricity Rules in accordance with the National Electricity (South Australia)(Smart Meters) Amendment Bill Ministerial Council on Energy Policy Objectives The Ministerial Council on Energy (MCE) decisions of the 13 Dec 2007 and 13 June 2008 set out the expected outcomes of smart metering: Reducing demand for peak power, with consequential infrastructure savings (e.g. network augmentation and generation) Driving efficiency and innovation in electricity business operations, including improving price signals for efficient investment and contracting Promoting the long term interests of electricity consumers with regard to the price, quality, security and reliability of electricity Promoting competition in electricity retail markets Enabling consumers (including residential, business, low- and high-volume users) to make informed choices and better manage their energy use and greenhouse gas emissions Manage distributional price impacts for vulnerable consumers Promoting energy efficiency and greenhouse benefits Providing a potential platform for other demand side response measures and avoiding discrimination against technologies, including alternative energy technologies This specification recognises these objectives and takes account of COAG commitments, MCE policy direction, the market objectives and consultation with stakeholders. The following table maps the MCE list of smart meter functions to those covered in this Functionality Specification. 1 The indicative participant service levels set out in this document will be regulated in the NEM Procedures which sit under the National Electricity Rules. No decision has been made yet by MCE as to whether the infrastructure performance levels will be regulated. (Note: The NSSC has not resolved the issue yet in order to make a recommendation to MCE/SCO.) File Name: SMI_FS_v0.24.doc Page 6 of 56

7 Table 3-1: MCE list of Functions and corresponding Functionality MCE Function Number MCE Reference Section National Functionality Specification 1 Half-Hourly Consumption Measurement and Recording File Name: SMI_FS_v0.24.doc Page 7 of Measurement and Recording 2 Remote Reading (Weekly) 7.2 Remote Acquisition 3 Local Reading Hand-Held Device 4 Local Reading Visual Display on Meter 5 Communications and Data Security 7.3 Local Acquisition 7.4 Visual Display and Indicators on Meter 7.16 Communications and Data Security 6 Tamper Detection 7.17 Tamper Detection 7 Remote Time Clock Synchronisation 8 & 14 Load Management at Meters through a Dedicated Controlled Circuit 7.5 Meter Clock Synchronisation 7.6 Load Management through a Controlled Load Contactor 9 Remote Reading (Daily) 7.2 Remote Acquisition 10 Power Factor Measurement 7.1 Measurement and Recording 11 Import/Export Metering 7.1 Measurement and Recording 12 Remote Connect/Disconnect 7.7 Supply Contactor Operation 13 Supply Capacity Control 7.8 Supply Capacity Control 15 Interface for other Load Control Devices 16 Interface to Home Area Network (HAN) using Open Standard 17 Provision of an In-Home Display 18 Interface for Communications from Gas and Water Meters 19 Quality of Supply & Other Event Recording 20 Meter Loss of Supply Detection and Outage Detection 21 Customer Supply Monitoring Error! Reference source not found. NOT RECOMMENDED 7.9 Home Area Network using Open Standard NOT RECOMMENDED NOT RECOMMENDED 7.10 Quality of Supply and Other Event Recording 7.11 Meter Loss of Supply Detection Customer Supply Monitoring 22 Real-Time Service Checking 7.12 Remote Meter Service Checking 23 Interoperability for Meters / Devices at Application Layer 24 Hardware Component Interoperability 7.18 Interoperability for meters/devices at Application Layer 7.19 Hardware Component Interoperability

8 MCE Function Number MCE Reference Section National Functionality Specification 25 Remote Reconfiguration 7.13 Meter Settings Reconfiguration 26 Remote Software Upgrades 7.14 Software Upgrades 27 Separate Standard Base Plate NOT RECOMMENDED 28 Non Meter Board Installation NOT RECOMMENDED 29 Plug and Play Device Commissioning 7.15 Plug and Play Device Commissioning 4 Overview of Smart Metering Infrastructure Figure 4-1 details the components of Smart Metering Infrastructure as defined in this specification. Figure 4-1: Overview of Smart Metering Infrastructure Smart Metering Infrastructure (SMI) components are defined as follows: a) Smart Meter means a device which measures and records the production or consumption of electrical energy and also conforms to the minimum functional requirements. Where the term meter is used through this document it means a Smart Meter. b) Smart Meter Management System (SMMS) means the component of an SMI system that allows commands to be sent via the SMCN to and from the meter. c) Smart Meter Communications Network (SMCN) means all communications equipment, processes and arrangements that lie between the smart meter and the SMMS. d) Interface to a Home Area Network (HAN) means an open standard interface supporting secure communications from the meter to a local area communications network installed in a customer premise. File Name: SMI_FS_v0.24.doc Page 8 of 56

9 5 This Specification 5.1 Limit of this specification This specification is limited to specifying the smart metering infrastructure functionality and associated performance levels and service levels. Smart Meter Infrastructure Performance levels and Participant Services Levels are defined 2 as follows: 1. Infrastructure Performance Level describes the minimum performance in terms of quantity, quality and time required for a function to be performed by the SMI. (Note: the Infrastructure Performance Level shall be measured over the time period specified in the Infrastructure Performance Level (e.g. if 90% of meters must respond in 10 minutes then the measurement will be over a 10 minute period.) 2. Participant Service Level (Indicative) describes the minimum service performance in terms of quantity, quality and time required by the responsible participant to complete a service. (Note: Participant Service Levels (Indicative) shall be the average performance over the period of one calendar year) 5.2 Use of Italicised expressions Italicised expressions in this specification are defined in the glossary in Appendix A. 2 Refer to the SM Regulatory Architecture Paper (approved by the NSSC on 15 July 2009) File Name: SMI_FS_v0.24.doc Page 9 of 56

10 6 Applicable Meter Configurations and Standards 6.1 Common Applicable Meter Configurations Table 6-1 shown below provides a description of the common applicable meter configurations with physical variants 3. Table 6-1: Applicable meter configurations with Physical variants Meter Configuration Single Phase Single Element Meter Description of Physical variant Single Phase Single Element Meter with Controlled Load Contactor No Controlled Load Contactor Meter is able to control a single phase load on a dedicated circuit. Single Phase Single Element Meter supporting External Load Control Single Phase Two Element meter 2A relay is rated to 230Vac but is supplied voltage free Only one relay is shown but meters should support up to three separate relays Second element can be used to separately measure on-site energy generation No Controlled Load Contactor 3 The physical depiction of internal connections is provided to show functional capability. Internal wiring of actual meters may differ from the diagrams. File Name: SMI_FS_v0.24.doc Page 10 of 56

11 Meter Configuration Single Phase Two Element meter with Controlled Load Contactor Description of Physical variant Suitable for sites with separate measurement of the Controlled Load (for example off-peak hot water tariffs) Both a switched and unswitched output is available from the second element Typically the second element would measure and switch a controlled load Three Phase Whole Current Meter No Controlled Load Contactor Three Phase Whole Current Meter with Controlled Load Contactor Note: Single phase controlled load contactor Three Phase Whole Current supporting External Load Control 2A relay is rated to 230Vac but is supplied voltage free Only one relay is shown but meters should support up to three separate relays File Name: SMI_FS_v0.24.doc Page 11 of 56

12 Meter Configuration Three Phase CT connected meter Description of Physical variant For large customers where the load is too large to be directly connected to the meter No Controlled Load Contactor No Supply Contactor Three Phase CT connected meter supporting external Supply Contactor The 2A relay is capable of controlling an external supply contactor No Controlled Load Contactor Note: External Supply Contactor falls outside scope of SMI Each of the Metering configurations shown in Table 6-1 supports the storage of Energy Data Channels. Table 6-2 summarises the Interval Energy Data Channels supported by each metering configuration. File Name: SMI_FS_v0.24.doc Page 12 of 56

13 Table 6-2: Available Energy Data Channels supported by metering configurations Meter Configuration Energy Data Channels available for Storage Single Phase Single Element Meter Single Phase Single Element Meter with Controlled Load Contactor Single Phase Single Element Meter supporting External Load Control Three Phase Whole Current Meter Three Phase Whole Current Meter with Controlled Load Contactor Three Phase Whole Current Meter supporting External Load Control Three Phase CT connected meter Three Phase CT connected meter supporting external Supply Contactor Single Phase Two Element meter with Controlled Load Contactor (second element measures controlled load) Single Phase Two Element meter for on-site generation. Second element measures on-site energy generation Total Imported Active Energy (kwh) Total Exported Active Energy (kwh) Total Imported Reactive Energy (kvarh) Total Exported Reactive Energy (kvarh) Total Imported Active Energy (kwh) Total Exported Active Energy (kwh) Total Imported Reactive Energy (kvarh) Total Exported Reactive Energy (kvarh) Element 1 Imported Active Energy (kwh) Element 1 Exported Active Energy (kwh) Element 2 Imported Active Energy (kwh) Element 2 Exported Active Energy (kwh) 6.2 Mapping of Meter Configurations to Minimum Functionality Table 6-3 defines the minimum functionality for the applicable meter configurations shown in Table 6-1. In Table 6-3 a indicates that the meter is required to support this minimum functionality. A Ҳ indicates that the function is not required, but this does not preclude the responsible participant deploying meters supporting this functionality. File Name: SMI_FS_v0.24.doc Page 13 of 56

14 Table 6-3: Minimum functionality for Applicable meter configurations. Function MEASUREMENT AND RECORDING Section Single Phase Single Element Single Phase Single Element with Controlled Load Contactor Single Phase Single Element Meter supporting External Load Control Single Phase Two Element Single Phase Two Element with Controlled Load Contactor Three Phase Whole Current Three Phase Whole Current with Controlled Load Contactor Three Phase Whole Current supporting External Load Control 7.1 REMOTE ACQUISITION 7.2 LOCAL ACQUISITION 7.3 VISUAL DISPLAY ON METER METER CLOCK SYNCHRONIZATION LOAD MANAGEMENT THROUGH A CONTROLLED LOAD CONTACTOR SUPPLY CONTACTOR OPERATION SUPPLY CAPACITY CONTROL HOME AREA NETWORK USING OPEN STANDARD QUALITY OF SUPPLY & OTHER EVENT RECORDING METER LOSS OF SUPPLY DETECTION AND OUTAGE DETECTION REMOTE METER SERVICE CHECKING METER SETTINGS RECONFIGURATION Ҳ Ҳ Ҳ Ҳ Ҳ 7.7 Ҳ 7.8 Ҳ SOFTWARE UPGRADES 7.14 PLUG AND PLAY DEVICE COMMISSIONING COMMUNICATIONS AND DATA SECURITY TAMPER DETECTION 7.17 INTEROPERABILITY FOR METERS/DEVICES AT APPLICATION LAYER HARDWARE COMPONENT INTEROPERABILITY METER COMMUNICATIONS: ISSUING MESSAGES AND COMMANDS Three Phase CT connected Three Phase CT connected supporting external Supply Contactor File Name: SMI_FS_v0.24.doc Page 14 of 56

15 Function CUSTOMER SUPPLY MONITORING Section Error! Refere nce sourc e not found. Single Phase Single Element Single Phase Single Element with Controlled Load Contactor Single Phase Single Element Meter supporting External Load Control Single Phase Two Element Single Phase Two Element with Controlled Load Contactor Three Phase Whole Current Three Phase Whole Current with Controlled Load Contactor Three Phase Whole Current supporting External Load Control Three Phase CT connected Three Phase CT connected supporting external Supply Contactor 6.3 Applicable Standards a) Meters shall meet the relevant requirements of AS Electricity metering equipment (a.c.) General requirements, tests and test conditions Part 11: Metering equipment AS Electricity metering equipment (a.c.) Particular requirements Part 21: Static meters for active energy (classes 1 and 2) (iii) AS Electricity metering equipment (a.c.) Particular requirements Part 22: Static meters for active energy (classes 0,2 S and 0,5 S) and (iv) Any pattern approval requirements of the National Measurement Institute, NER and Metrology Procedure. b) Reactive energy measurement shall meet the requirements of AS Electricity metering equipment (ac) Particular requirements Part 23: Static meters for reactive energy (classes 2 and 3) c) Meters shall measure over and under voltage in accordance with the requirements of Class S devices as specified in Section 5.4 of Edition 2.0 of IEC Electromagnetic compatibility (EMC) Part 4-30: Testing and measurement techniques Power quality measurement methods) d) For those meters with a Controlled Load Contactor - AS62054 parts 11 and 21 shall apply. e) For those meters with a Supply Contactor - IEC shall apply. File Name: SMI_FS_v0.24.doc Page 15 of 56

16 7 Minimum Functionality 7.1 Measurement and Recording Requirements a) The meter shall continuously measure and independently record Import active energy Export active energy (iii) Import reactive energy and (iv) Export reactive energy b) The meter shall measure net active energy and net reactive energy. c) The accuracy of measurement of active energy and reactive energy shall be: For all meters, Active Energy to Accuracy Class 1 For Whole Current Meters: Reactive Energy to Accuracy Class 3 (iii) For CT Connected Meters: Reactive Energy to Accuracy Class 2 d) For each energy data channel defined in Table 6-2 a meter shall: Separately record the cumulative value and this value shall be retained in the event of loss of power to the meter. Measure energy flow with a measurement resolution of 1Wh for active energy and 1varh for reactive energy (iii) Record energy flow in 30 minute trading intervals (iv) Include the facilities on site to store selected interval energy data for 35 days per channel (v) Stored interval energy data shall have a resolution of 0.1kWh for active energy and 0.1kvarh for reactive energy. (vi) Support local and remote configuration for enabling or disabling of the recording of an energy data channel e) For each energy data channel the summated interval energy data over any number of trading intervals shall equal the change in the cumulative value over the same number of trading intervals, plus or minus 0.1kWh for active energy or 0.1kvarh for reactive energy Smart Metering Infrastructure Performance Levels There are no Smart Metering infrastructure performance levels for measurement and recording Participant Service Levels (Indicative) There are no participant service levels for measurement and recording. File Name: SMI_FS_v0.24.doc Page 16 of 56

17 7.2 Remote Acquisition Requirements a) Smart Metering infrastructure shall support remote acquisition of interval energy data, cumulative energy registers and meter event logs. b) Smart Metering infrastructure shall support enabling and disabling of remote acquisition of any interval energy data channel Smart Metering Infrastructure Performance Levels a) The following performance levels is required for routine daily remote acquisition of interval energy data, cumulative energy registers and meter event logs: All Interval energy data and cumulative energy data used for billing purposes and meter events from the previous trading day successfully acquired from 99% of meters within 4 hours after midnight b) The following performance levels are required for remote acquisition of interval energy data, cumulative energy registers and meter events from individual meters: All Interval energy data channels and cumulative energy registers successfully acquired from 90% of meters within 30 minutes The total number of individual meters read in any 30 minute period can be up to 0.1% of the installed, operational Smart Metering infrastructure meter population in a distribution network area. (iii) The applicable amount of data shall be: the collection of seven days of a single channel of interval energy data and the cumulative energy registers (iv) The total number of individual meters read in any 24 hour period can be up to 2% of the installed, operational SMI meter population in a distribution network area. c) The amount of Reactive Energy Data specified for remote acquisition is yet to be defined Participant Service Levels a) The following service levels required for daily remote acquisition of interval energy data, cumulative energy registers and meter event logs: 96% of actual data from all meters by 8am the following day 99% of data from all meters by 24 hours after midnight b) The following performance levels required for all other remote acquisition of interval energy data, cumulative energy registers and meter event logs: 90% of reads within 2 hours of reading request 99.9% within 8 hours of request File Name: SMI_FS_v0.24.doc Page 17 of 56

18 7.3 Local Acquisition Requirements a) The meter shall include a local communications port b) The local communications port shall support the local acquisition of interval energy data channels, cumulative energy registers and meter event logs c) The local communications port shall provide secure access to all data, meter event logs and settings within the meter Smart Metering Infrastructure Performance Levels a) The local communications port shall support the collection of 35 days of a single channel of 30 minute interval energy data in 14 seconds b) It shall be possible to maintain the above performance level in the worst ambient conditions Participant Service Levels There are no participant service levels for Local reading hand held device. File Name: SMI_FS_v0.24.doc Page 18 of 56

19 7.4 Visual display and indicators on meter Requirements a) The meter shall include a visual display and indicators b) The visual display shall show the Cumulative Active Energy Export. c) The meter shall be capable of displaying any cumulative energy register d) The list of cumulative energy registers enabled or disabled for display shall be locally and remotely reconfigurable e) The display resolution for all cumulative energy register shall be: Active Energy: 0.1kWh; and Reactive Energy: 0.1kvarh f) The meter shall be capable of displaying Total Net Active Power as the summation of the net flows on all measurement elements in both directions clearly indicating if the Total Net Active Power is imported or exported. (a) For two element meters, the meter shall be capable of displaying the per element Active Power clearly indicating if it is imported or exported. The list of Active Power values available for display shall be locally and remotely reconfigurable. The display resolution for Active Power shall be: Active Power: 10W; (once the load is above the meter starting current) (iii) When displaying Active Power the display shall have an update frequency of 5 seconds g) For meters fitted with a Controlled Load Contactor the meter shall have a clear visual indication of the status of the Controlled Load Contactor or Relay as On or Off. h) For meters fitted with a Supply Contactor The meter shall have a clear visual indication of the status of the Supply Contactor as On, Off or Armed; and When the Supply Contactor is temporarily off (in the open position) in circumstances where Supply Capacity Limit is exceeded the visual display will display the remaining time (in minutes and seconds) before the Supply Contactor will automatically switch to the on (closed) position Smart Metering Infrastructure Performance Levels There are no smart metering infrastructure performance levels for Visual display on meter Participant Service Levels There are no participant service levels for Visual display on meter. File Name: SMI_FS_v0.24.doc Page 19 of 56

20 7.5 Meter Clock Synchronization Requirements a) The Meter Clock shall be maintained within ±20 seconds of Australian Eastern Standard Time b) A meter event shall be recorded in the Access and Security event log when the Meter Clock is adjusted by more than 20 seconds. The meter event shall include the size of the time correction Smart Metering Infrastructure Performance Levels There are no smart metering infrastructure performance levels for Meter Clock Synchronization Participant Service Levels There are no participant service levels for Meter Clock Synchronization. File Name: SMI_FS_v0.24.doc Page 20 of 56

21 7.6 Load Management through a controlled load contactor or relay Requirements a) For a meter with a controlled load contactor or relay the controlled load contactor or relay shall be integrated into the meter. The rating of a single phase controlled load contactor that is integrated into the meter shall be 31.5A resistive (AC1 rating) and a nominal voltage rating of 230 Vac. The rating of a single phase voltage free relay integrated into the Single Phase Single Element Meter supporting External Load Control and Three Phase Whole Current Meter supporting External Load Control shall be 2 A with a voltage rating of 230 Vac. Up to three voltage free relays shall be supported. (iii) In Section 7.6 functional references to the controlled load contactor shall also apply to relays integrated into the meter b) For meters with a controlled load contactor the meter shall support the following basic load control functions: Load Switch Actions Switch Time Randomisation (iii) Load Cycling c) The meter will use the basic load control functions to support the following modes of operation for each controlled load contactor in the meter. (a) (a) (b) Normal Operation File Name: SMI_FS_v0.24.doc Page 21 of 56 Default Load Control Schedule Alternative Load Control Operation Special Day Load Control Schedule Priority Override (iii) Event Driven Operation (a) (b) (c) Meter Loss of Supply Event Under Frequency Event Demand Limit Event (iv) Customer Driven Operation (a) Boost Mode d) Control options for the controlled load contactor shall be configurable both locally and remotely e) The hierarchy for load control commands is as follows: Priority 1 4 Where enabled Meter Loss of Supply Priority 2 Where enabled: Under Frequency (iii) Priority 3 (iv) Priority 4 (v) Priority 5 (vi) Priority 6 4 Priority 1 is the highest priority Where Boost and Boost Primacy enabled: Boost Where enabled Priority Override Where enabled: Direct Load Control Demand Limit Where Boost enabled and Boost Primacy disabled: Boost

22 (vii) Priority 7 (viii) Priority 8 Special Load Control Scheme Default Daily Load Control Scheme Basic Load Control Functions Load Switch Actions a) The Load Control Contactor shall have functionality supporting: Turn On Immediately Turn Off Immediately (iii) Delayed Turn On (using Switch Time Randomisation, refer to Section ) (iv) Delayed Turn Off (using Switch Time Randomisation) (v) Commence Cycling (refer to Section ) (vi) Stop Cycling Switch Time Randomisation a) In order to avoid synchronised switching of loads throughout the distribution network area the meter shall support the generation of a random delay (a) (b) (a) The meter shall store the range for the delay The meter shall store a setting allowing the minimum time delay to be specified from 0 to 720 minutes (12 hours) in 1 minute increments; The meter shall store a setting allowing the maximum time delay to be specified from 0 to 720 minutes (12 hours) in 1 minute increments; The delay calculated by the meter shall be a time in seconds from the minimum time delay to the maximum time delay. The algorithm shall use a uniform probability. To ensure that the load is turned on for a defined time when using delayed switching the meter shall 1. Calculate a new random time for Delayed Turned On. If selected the subsequent Delay Turn Off (using Switch Time Randomisation) shall use the delay calculated for the previous Turn On; or 2. When the meter is powered on (or Meter Settings affecting the time delay are made) the meter will calculate and store a new random time. All Delayed Turn On and Delay Turn Off Switch Actions will use the stored value Load Cycling of the Contactor a) Load Cycling of the Contactor shall support the following functionality: (a) (b) Random Delay will specify time before cycling commences. The delay calculated by the meter shall be a time in seconds from the minimum time delay to the maximum time delay. The algorithm shall use a uniform probability. The meter shall store a setting allowing the Minimum delay to be specified from 0 to 120 minutes in 1 minute increments. The meter shall store a setting allowing the Maximum delay to be specified from 0 to 120 minutes in 1 minute increments. The meter shall store a setting allowing the Cycle On Time to be specified in minutes from 1 to 120 minutes in 1 minute increments. File Name: SMI_FS_v0.24.doc Page 22 of 56

23 (iii) The meter shall store a setting allowing the Cycle Off Time to be specified in minutes from 1 to 120 minutes in 1 minute increments. b) When the Load Control Cycling Program starts; if the initial position of the Controlled Load Contactor is in the off (open) position, then after the Random Delay the Controlled Load Contactor will switch to the on (closed) position and will commence cycling (off and on) in accordance with the cycle on time and cycle off time. If the initial position of the Controlled Load Contactor is in the on (closed) position then after the Random Delay the Controlled Load Contactor will switch to the off (open) position and will commence cycling (on and off) in accordance with the cycle on time and cycle off time c) The meter will cease load cycling when any other Load Switch Action is specified Normal Operation Mode a) The Load Control Contactor shall have functionality supporting a programmable sequence of Load Switch Actions. b) The meter shall store a programmable sequence supporting ten (10) entries, where each of the ten entries shall specify: The time in Hours and Minutes The required Load Switch Action c) The meter shall support two Day Types d) For each Day of Week it shall be possible to select a Day Type Load Control Schedule to be used on this day; Alternative Load Control Operation Mode a) The meter shall support Special Day Load Control Schedule. (a) (b) To support the Special Day Load Control Schedule the meter shall store a programmable list of up to twelve dates that the Special Day Schedule is to be used The meter shall store a programmable Special Day Load Control Schedule. The Special Day Load Control Schedule shall store ten (10) entries, where each of the ten entries shall specify: The time in Hours and Minutes The required Load Switch Action b) The meter shall support an Priority Override Command (a) (b) (c) The Priority Override Command shall specify. Start Date and Time (in Hours and Minutes) for the override. The Start Time shall also allow: commence immediately and cease immediately. Duration of the Override from 1 to 1440 minutes (24 hours) in 1 minute increments The required Load Switch Action After the Duration of the Override or when the Priority Override is locally or remotely cleared, the meter will return to Normal Operation (iii) If during the Priority Override another Priority Override Command is received, it will overwrite the previous settings Event Driven Operation Mode a) The meter shall be configurable to enable and disable Meter Loss of Supply Load Switching. This shall be possible both locally and remotely; File Name: SMI_FS_v0.24.doc Page 23 of 56

24 If Meter Loss of Supply Load Switching is enabled: On detection of Meter Loss of Supply, the Load Contactor shall be switched to the off (open) position (iii) On power restore a new random delay (refer ) will be calculated and applied before returning to Normal Operation; b) If the meter supports mains frequency monitoring. The meter shall have an option to enable or disable the monitoring of the mains frequency for automatic load control. When monitoring of the mains frequency is enabled and the mains frequency drops below X Hz (specified from 49Hz to 50Hz in 0.1Hz increments) for more than U seconds (specified from 5 to 60 seconds in 5 second steps) the Controlled Load Contactor shall switch off (open); (iii) Once the mains frequency increases above X Hz for more than V minutes (specified from 1 minute to 60 minutes in 1 minute increments) a new random delay (refer ) shall be calculated and applied before returning to Normal Operation c) The meter shall support a programmable Load Control Demand Limit. (a) (b) When the Demand Limit is enabled: The Controlled Load Contactor shall turn off (open) if the average Exported active energy kw demand across the last X minutes is greater than the programmed demand limit (Y kw), where: The setting X is programmable from 1 to 30 minutes in 1 minute increments; and The setting Y is programmable from 0.5 to 99 kw in increments of 0.5 kw. If the programmed limit is exceeded the Controlled Load Contactor will remain in the Off (open) position for a time period of P minutes, where P is programmable from 1 to 60 minutes in 1 minute increments (iii) It shall also be possible to program the time period for which the meter shall monitor the demand limit. (a) (b) Start Time in Hours and Minutes Stop Time in Hours and Minutes Customer Switch Operation Mode a) A meter shall have a configurable Boost option to operate the Controlled Load Contactor. b) The configurable Boost option shall support the following: A customer can activate boost functionality by pressing a button (Boost Button) on the front of the meter. When the meter s boost function is activated, the meter will switch on (close) the controlled load contactor for a preset time, which is programmable from 1 to 6 hours in half hour increments. The boost preset time shall be configurable both locally and remotely; (iii) It shall be possible to enable and disable the meter s Boost Button both locally and remotely. When the Boost Button is disabled pressing the Boost Button will not switch the controlled load contactor to the on (closed) position. (iv) It shall be possible to change the priority of the Boost Functionality using a Boost Primacy setting. Enabling the Boost primacy setting shall raise the priority of the Boost above that of Priority override and Direct Load Control Demand Limit. (v) The meter shall support a programmable setting to disable boost functionality when Emergency Supply Capacity Control is activated. File Name: SMI_FS_v0.24.doc Page 24 of 56

25 7.6.2 Smart Metering Infrastructure Performance Levels a) For Direct remote operation of the controlled load contactor: b) For transmission to all meters the requested Load control command performed at 90% of meters within 5 minutes 5 c) For commands sent to one or more Groups of Meters up to four load control commands can be sent to all meters (or groups of meters) in any 24 hour period; d) For commands sent to individual meters requested Load control command successfully acknowledged by 90% of meters within 10 minutes e) The total number of load control commands to individual meters in any 10 minute period can be up to 0.035% of the installed, operational SMI meter population in a distribution network area f) The total number of load control commands to individual meters in any 24 hour period can be up to 2% of the installed, operational SMI meter population in a distribution network area Participant Service Levels a) Standard operation will be turn off and turn on times set within meter, these will operate with sub second Participant Service Level (Indicative) performance b) Alterations to (ie remote override) turn off and turn on times will require additional Participant Service Level (Indicative)s. Note this may require additional communication between network and retailer regarding customers existing configuration and tariffs and proposed changes change from Off Peak 1 to Off Peak 2 or vice versa (Participant Service Level (Indicative): performed within 24 hours load shedding during a controlled load on period (Participant Service Level (Indicative): performed at 98% of meters within 30 mins (iii) temporary override - turn on for set period of time eg no hot water so perform short period boost (Participant Service Level (Indicative): performed at individual site within 1 hr of request received 5 Note: Command can also be sent to an individual or group of installed meters File Name: SMI_FS_v0.24.doc Page 25 of 56

26 7.7 Supply Contactor operation Requirements a) A meter, other than a Three Phase CT connected meter (but including Three Phase CT connected meter supporting external Supply Contactor), shall support functionality to control a Supply Contactor to enable the interruption of supply to the customer premise; b) For all whole current meters the Supply Contactor shall be integrated into the meter; c) For the CT Connected Meter supporting external Supply Contactor a 2A relay with a rating of 230Vac shall be integrated into the meter. d) In Section 7.7 functional references to the Supply Contactor shall also apply to the control relay integrated into the Three Phase CT connected meter supporting external Supply Contactor) e) For whole current meters when the Supply Contactor in the meter is in the Off (Open) position all outgoing (customer side) active circuits for the meter shall remain de-energised; f) Switching of the Supply Contactor shall be possible both locally and remotely; g) Meters with Supply Contactor shall display the status of the Supply Contactor: ON ARMED (iii) OFF h) The smart metering infrastructure shall support three separate commands for switching the Supply Contactor from the off (open) position to the on (closed) position 6 : Turn On (close) the Supply Contactor Turn On (close) the Supply Contactor and Monitor Load (iii) ARM the Supply Contactor Monitor Load a) The meter shall support a Monitor Load (auto-off) function such that if load above a programmable level is measured when switching the Supply Contactor to the on (closed) position the Supply Contactor will automatically switch to the off (open) position. b) When the Turn on (close) the Supply Contactor and Monitor Load command is used: (a) (b) (c) (d) The Meter shall automatically turn off the Supply Contactor if more than X Watts of load is measured by the meter for more than Y seconds during the measurement period of Z seconds after the Supply Contactor is turned on, where: X range: 20 W 25 kw per element, per phase programmable in 20 W increments; Y range: 1- Z seconds programmable in 1 second increments; Z range: 1-3,600 seconds programmable in 1 second increments; For CT connected meters (with 2A relay) the setting of X shall be the value measured by the meter, the meter does not need to know the CT ratio and is not required to calculate the customer load; The meter shall alarm to the Smart Meter Management System when the Supply Contactor has been automatically turned off due to excessive load; 6 Refer Appendix C for switching matrixes and configurations File Name: SMI_FS_v0.24.doc Page 26 of 56

27 Arm (iii) The meter shall record a meter event in the Quality of Supply Event log when the supply contactor has been automatically turned off due to excessive load. a) When the meter s Supply Contactor is in the off (open) position and the meter receives an ARM command, the meter shall indicate that the Supply Contactor is now in the ARMED state. The Supply Contactor remains off (open); b) When the meter is in the ARMED state it shall be possible for a customer to change the meter from the ARMED state to Supply Contactor on (closed). c) The meter shall support a configurable arming time out period. If during the arming time out period the customer does not turn the supply contactor on (closed) the meter shall automatically return to the off (open) position. A meter event will be recorded in the Quality of Supply Event log to indicate that a time out has occurred. The time out period shall be programmable from 1 hour to 48 hours in 1 hour increments Supply Contactor Functionality for Meter Loss of Supply a) The meter shall support an option to open the Supply Contactor when Meter Loss of Supply is detected. If this option is enabled the Supply Contactor shall switch to the off (open) position when Meter Loss of Supply is detected and switch to the on (closed) position upon supply restoration detection Smart Metering Infrastructure Performance Levels a) For individual meters, the requested turn on or turn off shall be performed by 90% of meters within 10 minutes; b) The total number of turn on/turn off commands to individual meters in any 10 minute period shall be no greater than 0.015% of the installed, operational SMI meter population in a distribution network area; c) Monitor Load alarms shall be received by the Smart Meter Management System within 10 minutes for 99% of meters; d) The total number of Supply Contactor switch commands in any 24 hour period can be up to 0.5% of the installed, operational SMI meter population in a distribution network area Participant Service Levels a) For individual meters: Command performed and Supply Contactor operated at 90% of meters within 1 hour Command performed and Supply Contactor operated performed at 99% of meters within 3 hours b) The total number of Supply Contactor commands to individual meters in any 24 hour period can be up to 2% of the installed, operational SMI meter population in a distribution network area. File Name: SMI_FS_v0.24.doc Page 27 of 56

28 7.8 Supply Capacity Control Requirements a) A meter, other than a Three Phase CT connected meter (but including Three Phase CT connected meter supporting external Supply Contactor), shall support functionality to implement Supply Capacity Control; b) A meter with Supply Capacity Control shall support three Supply Capacity Control limits: Export Supply Capacity Limit Import Supply Capacity Limit; and (iii) Emergency Supply Capacity Limit c) A meter shall support local and remote enabling and disabling of each Supply Capacity Limit. d) At the end of each trading interval the meter shall calculate the net active energy flow for that trading interval. Where the net active energy flow for a trading interval results in a net export the meter will test for Export Supply Capacity Limiting. Where the net active energy flow for a trading interval results in a net import the meter will test for Import Supply Capacity Limiting Export Supply Capacity Limit a) When Export Supply Capacity Limiting is enabled the Supply Contactor in the meter is switched to the Off (Open) position if the average net exported active energy kw demand across the last X number of trading intervals is greater than the demand limit (Y kw), where: X is programmable from 1 to 10 trading intervals 7 in increments of 1 trading interval; and Y is programmable from 0.1 to 99 kw in increments of 0.5 kw (iii) Start Time and Duration and second Export Supply Capacity limit b) If the Supply Contactor has switched to the Off (Open) position as a result of the average exported active energy demand having exceeded the demand limit, the Supply Contactor shall remain off (open) for a period of T minutes where: T is programmable from 1 to 60 minutes in 1 minute increments c) After T minutes the Supply Contactor shall switch to the on (closed) position Import Supply Capacity Limit a) When Import Supply Capacity Limiting is enabled the Supply Contactor shall switch to the off (open) position if the average net imported active energy kw demand across the last U number of trading intervals is greater than the demand limit (V kw), where: U is programmable from 1 to 10 trading intervals in increments of 1 trading interval; and V is programmable from 0.1 to 99 kw in increments of 0.5 kw (iii) Start Time and Duration and second Import Supply Capacity Limit b) If the Supply Contactor is switched to the Off (Open) position as a result of the average imported active energy demand having exceeded the demand limit, the Supply Contactor shall remain off (open) for a period of W minutes where: W is programmable from 1 to 60 minutes in 1 minute increments c) After W minutes the Supply Contactor shall switch to the on (closed) position. 7 Contractual arrangement hence related to the Trading Intervals which would support potential demand based tariffs File Name: SMI_FS_v0.24.doc Page 28 of 56

29 Emergency Supply Capacity Limit a) When enabled the Emergency Supply Capacity limit takes priority over the Export Supply Capacity Limit; b) When the Emergency Supply Capacity limit is enabled supply shall be uninterrupted if the Total Exported Active Energy is below L kwh measured over a period of M minutes. The Supply Contactor will switch to the off (open) position immediately the cumulative kwh energy consumption exceeds L kwh and remain off for the period of P minutes after which time the Supply Contactor shall switch to the on (closed) position where: L is from 0.1kWh to 99kWh in 0.1kWh intervals M is from 1 to 60 minutes in 1 minute intervals (iii) P is from 1 to 60 minutes in 1 minute intervals General Requirements a) The switching of the Supply Contactor as a result of Supply Capacity Control shall be recorded as a meter event in the meter s Quality of Supply Event log. b) The meter shall provide a visual display of the time remaining before the Supply Contactor will automatically switch to the on (closed) position. c) For CT connected meters with 2A relay: The setting of Y, V and L will be the value measured by the meter irrespective of the CT ratio Smart Metering Infrastructure Performance Levels a) For transmission to all meters the requested Emergency Supply Capacity Limiting shall be acknowledged by 90% of meters within 10 minutes b) A maximum of two Emergency Supply Capacity Limiting commands shall be sent to a meter in any 24 hour period Participant Service Levels There are no Participant Service levels for Supply Capacity Control File Name: SMI_FS_v0.24.doc Page 29 of 56