EMMS REALLOCATIONS USER INTERFACE GUIDE

EMMS REALLOCATIONS USER INTERFACE GUIDE VERSION: 3.05 DOCUMENT REF: PREPARED BY: MMSTDPD167 Information Management and Technology (IMT) DATE: 15 April 2011 Final

Copyright Copyright 2011 Australian Energy Market Operator Limited All rights reserved. This entire publication is subject to the laws of copyright and intellectual property rights. This publication may be printed for personal informational use as long as the copyright notices stay intact, but may not be re-distributed, re-sold, reproduced, stored in a retrievable system or transmitted in any form by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the Australian Energy Market Operator Limited, except as permitted under the Copyright Act 1968. AEMO is not responsible for and will not be liable to any person in relation to the use of or reliance on any of the information contained in this document. Trademark Notices Microsoft, Windows and SQL Server are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Disclaimer This document is made available to you on the following basis: 1. Purpose This User Interface Guide (Guide) has been produced by the Australian Energy Market Operator Limited (AEMO) to provide information for Participant users of the EMMS web portal, as at the date of publication. 2. No substitute This Guide is not a substitute for, and should not be read in lieu of, the National Electricity Law (NEL), the National Electricity Rules (Rules) or any other relevant laws, codes, rules, procedures or policies. Further, the contents of this Guide do not constitute legal or business advice and should not be relied on as a substitute for obtaining detailed advice about the NEL, the Rules, or any other relevant laws, codes, rules, procedures or policies, or any aspect of the national electricity market or the electricity industry. 3. No Warranty While AEMO has used due care and skill in the production of this Guide, neither AEMO, nor any of its employees, agents and consultants make any representation or warranty as to the accuracy, reliability, completeness or suitability for particular purposes of the information in this Guide. 4. Limitation of liability - To the extent permitted by law, AEMO and its advisers, consultants and other contributors to this Guide (or their respective associated companies, businesses, partners, directors, officers or employees) shall not be liable for any errors, omissions, defects or misrepresentations in the information contained in this Guide, or for any loss or damage suffered by persons who use or rely on such information (including by reason of negligence, negligent misstatement or otherwise). If any law prohibits the exclusion of such liability, AEMO s liability is limited, at AEMO s option, to the re-supply of the information, provided that this limitation is permitted by law and is fair and reasonable. Distribution Commercial-in-confidence with NEM participants This Document Identification Title: EMMS REALLOCATIONS USER INTERFACE GUIDE Version: 3.05 Document ID: MMSTDPD167 Responsible Department: Information Management Technology (IMT) - Electricity IT Solutions (EITS) Notes: update to comply with validation of ex post reallocations. Documents made obsolete: EMMS reallocations Users Guide Version 1.12A and earlier versions of this document. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page ii

Contents 1 Introduction... 1 1.1 Purpose... 1 1.2 Audience... 1 1.3 Scope... 1 1.3.1 What s in this guide... 1 1.3.2 Related resources... 1 1.4 Organisation... 2 1.5 Conventions... 2 2 Overview... 3 2.1 What the Reallocations system is for... 3 2.2 What is a reallocation?... 3 2.2.1 Ex ante reallocation... 4 2.2.2 Ex post reallocation... 4 2.3 What time period can a reallocation cover... 5 2.4 Reallocation status... 5 2.5 How do you use the Reallocations system... 7 2.6 Summary of the reallocation process... 7 2.7 Who can use the Reallocations system... 8 2.8 System requirements... 9 2.9 Reallocations system terms... 9 3 Viewing Reallocations...10 3.1 Sorting reallocations... 11 3.2 Accessing reallocations... 11 3.3 Viewing About Reallocations... 12 3.4 Viewing F.A.Q.... 13 3.5 Viewing Awaiting Our Authorisation... 14 3.6 Viewing Awaiting Counterparty... 15 3.7 Viewing Authorised - Current... 16 3.8 Viewing Authorised - Future... 17 3.9 Viewing Authorised - Finished... 18 3.10 Viewing Cancelled or Expired... 19 3.11 Viewing further reallocation details... 20 4 Creating Reallocations...21 4.1 Reallocation validation... 21 4.1.1 Our reallocation role... 22 4.1.2 Our reference... 22 Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page iii

4.1.3 Start date... 22 4.1.4 Profile type... 22 4.1.5 Agreement type... 23 4.1.6 Counterparty participant ID... 23 4.1.7 Counterparty reference... 23 4.1.8 End date... 24 4.1.9 Reference region ID... 24 4.1.10 Intervals and values... 25 4.2 Entering a reallocation... 26 4.3 Creating and uploading a file... 27 4.3.1 Creating a file... 28 4.3.2 Downloading a template... 31 4.3.3 Downloading an existing reallocations record... 32 4.3.4 Uploading the file... 33 5 Authorising Reallocations...36 5.1 Authorisation validation... 36 5.1.1 Debit participant ID... 37 5.1.2 Credit participant ID... 37 5.1.3 Start date... 37 5.1.4 Profile type... 38 5.1.5 Agreement type... 39 5.1.6 Debit party reference... 40 5.1.7 Credit party reference... 40 5.1.8 End date... 40 5.1.9 Reference region ID... 41 5.1.10 Reallocation total... 41 5.2 Authorising a reallocation... 42 6 Cancelling Reallocations...45 6.1 Cancelling an unauthorised reallocation... 45 6.2 Cancelling (reversing) an authorised reallocation... 46 6.3 Reversing a reallocation... 46 7 Glossary...48 7.1 Abbreviations... 48 7.2 Special terms... 48 8 References...49 8.1 AEMO s website... 49 8.2 EITS publications... 49 8.3 Information centre... 49 9 Needing Help?...50 9.1 How do I...... 50 9.2 What if...... 50 9.3 What is...... 50 9.4 Support... 52 Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page iv

9.5 Feedback... 52 Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page v

1 Introduction 1.1 Purpose This document is a user interface guide providing instructions on using the Reallocations system in the Electricity Market Management Systems (EMMS) Web Portal. 1.2 Audience The audience for this guide is: Settlements reallocations registered participants Settlements reallocations agents, as authorised by the registered participant AEMO 1.3 Scope This guide covers use of the Reallocations system in the EMMS Web Portal only. For information about how to: Use the other menus in the EMMS Web Portal, see the About section under the relevant menu. For example: Provide other users with access to your participant data at AEMO; see the Participant Rights Administration User Interface Guide (see 8.1). Log in or out of the EMMS Web Portal, see the Web Portal Login User Guide (see 8.2). 1.3.1 What s in this guide This guide describes: An overview of the Reallocations system. How to access the Reallocations system. Terms used in the Reallocations system. How to view, create, authorise, cancel or reverse reallocations. 1.3.2 Related resources Visit the Settlements web page on AEMO s website for further information on reallocation procedures, settlements timetables and settlement calendars: http://www.aemo.com.au/electricityops/settlements.html. NER clauses, 3.15.11 reallocation transactions and 3.15.11A Reallocation procedures. For more information see the AEMC website http://www.aemc.gov.au. For help formatting.csv files see, AEMO CSV Data Format Standard. IT security contacts can find the document in the secure area, EITS Publications on AEMO s website. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 1

1.4 Organisation The guide is organised in the following way: An introduction and overview of the Reallocations system. Step-by-step instructions on using the Reallocations system interface. A glossary of abbreviations and references, useful for further understanding. 1.5 Conventions Important Note: important information. Note: notes, hints and tips. Menu item: text formatted in this style refers to a menu item in the EMMS Web Portal. Button : text formatted in this style refers to a button to click on a screen. Link: text formatted in this style refers to a link to click on a screen. Screen: text formatted in this style refers to a field or description on a screen. Reference : text formatted in this style refers to a defined term, another document, or another section in this document. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 2

2 Overview 2.1 What the Reallocations system is for The Reallocations system enables registered participants to create, submit, authorise and view reallocation requests in accordance with the Reallocation procedures. At each settlement run, AEMO s Electricity Market Management System (EMMS) automatically copies reallocation details from the Reallocations system to the Settlements system. The Settlements system then includes this data in settlements calculations and incorporates the results in participants weekly settlement statements. The Reallocations system has several benefits: It is easy to use. It operates in real time, so your reallocation details are accepted immediately. It provides status and reconciliation information to assist in tracking and auditing. It incorporates reallocations into the daily settlements process. It streamlines AEMO s settlement processes and significantly reduces the risk of processing errors. It reduces AEMO s prudential requirements of participants, leading to financial savings. It promotes the use of reallocations to reduce market settlement volumes and prudential requirements. 2.2 What is a reallocation? For the purposes of this document, a reallocation is an authorised request in the Reallocations system, of an agreement between two market participants to settle all or part of their mutual settlement obligations. The request generates matching debit and credit transactions of equal value that are included in the participants settlement statements. Depending on their roles, the two parties to a reallocation agreement are called the party (who initiates the request in the system) and the counterparty (who authorises a request) or the debit participant (who receives a debit settlement transaction on the settlement statement) and credit participant (who receives a credit). A reallocation can be for a quantity of energy (MW h) or for a dollar amount. Different amounts of energy or dollars can be specified for each of the 48 half-hour trading intervals in the reallocation record. For instance, a reallocation may define an agreement for one participant to receive credit for the specified quantities of energy for each trading interval from 25 December to 31 December, or an agreement to receive a debit (normally offset against physical energy credits) for a specific dollar value between certain trading intervals on a particular day. You can use reallocations to specify different prices or amounts of energy for different kinds of days within a reallocation period. This is called an agreement type. If the same quantity of energy or cost is to be applied every day during the reallocation period, you specify a profile type of flat - all days. If you want to specify different energy for weekdays and weekends or public holidays, you can create one reallocation with a profile type of business weekdays, and a second reallocation with a profile type of non business - weekends and public holidays. Business and non business days are determined in accordance with the Settlements Calendars, found on AEMO s website: http://www.aemo.com.au/electricityops/timetables.html. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 3

2.2.1 Ex ante reallocation Ex ante reallocations are lodged before the target trading intervals occur, when the volume and price are unknown. A reallocation must be submitted and authorised six calendar days plus one business day before the start date of the reallocation if it is to be relied upon for reducing maximum credit limits (MCL). Business days are weekdays from Monday to Friday that are not public holidays (public holidays are listed in the Settlements Calendar). Note: The ex ante due by date shown in the Reallocation system is the date by which the ex ante reallocation must be authorised if it is to be recognised for MCL purposes. To take an example from the 2010 Settlements Calendar, it is Monday 17 May and you want to submit an ex ante reallocation. Monday 17 May, plus six calendar days is Sunday 23 May. Plus one business day takes you to Monday 24 May. Therefore, the start date for your ex ante reallocation is Monday 24 May. In this example, if you wanted to submit a reallocation with a start date on 24 May, and rely on it for reducing prudential obligations, then it must be submitted by Monday 17 May. Sunday, 16 May 2010 Monday, 17 May 2010 Monday, 24 May 2010 Friday, 28 May 2010 Billing Period Start Submit Reallocation Reallocation Start Date Preliminary Statement issued 17/5-24/5 add 6 calendar days + 1 business day 17/5 18/5 19/5 20/5 21/5 22/5 23/5 24/5 25/5 26/5 27/5 16 May 2010 28 May 2010 Figure 1: ex ante reallocation example 2.2.2 Ex post reallocation Ex post reallocations are lodged after the target trading intervals occurred, where the volume and price are known. There are benefits in lodging ex post reallocations earlier than required: To ensure the resulting reduction in the level of outstandings maximises the trading margin as a buffer against future high market prices. To have the reallocation captured in the preliminary statement. For the ex post reallocation to appear in your preliminary statement, submit and authorise it on or before the third business day after the billing period end (see Figure 2). However, ex post reallocations can be submitted and authorised up until the close of business on the second business day before the final statement is issued, for the billing period that includes the reallocation start date (see Figure 3). Note: The ex post due by date shown in the Reallocations system is the date the reallocation must be authorised by if it is to be taken into account for the relevant billing period. Once the date has passed the ex post due by date, if the reallocation is not authorised it is moved to Cancelled/Expired and is no longer available for authorisation. To take an example where the reallocation appears in the preliminary statement, say you wish to submit an ex post reallocation for Monday 17 May: The billing period start is Sunday 16 May. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 4

The billing period end is Saturday 22 May; add 3 business days takes you to Wednesday 26 May. Therefore, you must submit and authorise your ex post reallocation on or before Wednesday 26 May so it is included in the preliminary statement. Wednesday, 26 May 2010 Sunday, 16 May 2010 Billing Period Start Saturday, 22 May 2010 Billing Period End Submit Reallocation 3 bus. days after Billing Period End Friday, 28 May 2010 Preliminary Statement Issued 22/5-26/5 3 business days 17/5 18/5 19/5 20/5 21/5 22/5 23/5 24/5 25/5 26/5 27/5 16 May 2010 28 May 2010 Figure 2: Preliminary statement example To take another example where the ex post reallocation is included in the final statement, say you wish to submit an ex post reallocation for Monday 17 May: The final statement for the billing period is issued on Thursday 17 June. Thursday 17 June less 2 business days is Tuesday 15 June. Therefore, you must submit and authorise your ex post reallocation on or before Tuesday 15 June so it is included in the final statement. Friday, 28 May 2010 Preliminary Statement Issued Tuesday, 15 June 2010 Reallocation authorised 2 bus. days before Final Statement Issued Thursday, 17 June 2010 Final Statement Issued 15/6-17/6 2 bus. days 29/5 30/5 31/5 1/6 2/6 3/6 4/6 5/6 6/6 7/6 8/6 9/6 10/6 11/6 12/6 13/6 14/6 15/6 16/6 28 May 2010 17 June 2010 Figure 3: Final statement example 2.3 What time period can a reallocation cover A reallocation can cover a one-day period or many days. When you create a reallocation, you specify a start date and end date to define the reallocation period. The end date must be no earlier than the start date. Two reallocation agreement types can be used to specify different arrangements for weekdays and weekends or public holidays within the reallocation period, if required. A reallocation can be submitted before its start date (ex ante) or after it (ex post); subject to the conditions explained in What is a reallocation? on page 3. 2.4 Reallocation status A reallocation record is created by one party to the agreement, and then submitted. The system validates the record, and if it passes the validation tests, it is displayed to the counterparty. The counterparty to the agreement uses the Reallocations system to confirm the details and authorise the reallocation. The authorisation is also validated by EMMS and if it passes the validation tests, the record is displayed in the Reallocations system as an authorised reallocation. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 5

As the reallocation passes through the various stages, it can have the following statuses: Not submitted initial reallocation created but not submitted. Submitted initial reallocation, submitted, validated and the reallocation displayed in Awaiting Our authorisation Authorised authorisation validated and the reallocation displayed in Authorised Current, Future or Finished Cancelled reallocation cancelled and displayed in Cancelled/Expired Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 6

Expired reallocation expired and displayed in Cancelled/Expired 2.5 How do you use the Reallocations system The Reallocations system is a web-based application used to view, create, submit or authorise reallocations. You can view existing reallocation agreements both authorised and unauthorised (unauthorised reallocations have been submitted by the party to the agreement but have not yet been authorised by the counterparty). When you view existing reallocations, you can display: Authorised current reallocations Authorised future reallocations reallocations awaiting authorisation by your company reallocations awaiting authorisation by the counterparty Authorised finished reallocations Cancelled/expired reallocations See Viewing Reallocations on page 10 for help on how to view existing reallocations. The system interfaces with comma-separated value (CSV) files so you can download reallocation information from the system for use in other applications; see Downloading an existing reallocations record on page 32. You can also create your reallocation files in CSV format and upload them to the system, see Creating and uploading a file on page 28. When you log in, you can only see your own company s reallocations records. This means reallocations you have created (both authorised and unauthorised), and reallocations awaiting your authorisation as a counterparty. 2.6 Summary of the reallocation process When you have negotiated an agreement with another participant to enter a reallocation, you and your counterparty decide who creates the reallocation. A representative of the company then creates and submits a new reallocation request. A representative of the other company can review the submitted request and, if all is well, authorise it. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 7

The Reallocation system works like this: Note: you may need to refresh your screen to see the changes made by your counterparty. To do this, click the refresh icon on your web browser toolbar or press F5 on your keyboard. 2.7 Who can use the Reallocations system Users having access to the Reallocation system in the EMMS Web Portal include: Settlement registered participants Settlement agents as authorised by the registered participant AEMO Settlement registered participants may authorise (in MSATS) other users to input reallocation information via the Reallocation system, see the Participant Rights Administration User Interface Guide (see 8.1). The MSATS entity required for Settlements reallocation access is: EMMS Settlements - Reallocations Where a user has user rights assigned by more than one participant, the user interactively chooses the participant they represent, using the Set Participant option on the Administration menu of the EMMS Web Portal. For help see About Administration on the EMMS Web Portal. The settlement registered participant, their agents, and AEMO have full access to all the information in the system. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 8

2.8 System requirements Settlement Reallocations runs on both Windows and UNIX-like operating systems and requires: Microsoft Internet Explorer 7 is the recommended version. Participants using Microsoft Internet Explorer 8 can enable Compatibility View. A monitor capable of 1024 x 768 screen resolution. Access to MarketNet, see Guide to Market Systems Gaining Access (see 8.1). The URL of the pre-production (for testing) and production EMMS Web Portals, see AEMO s IP Addresses for Participants (see 8.2). A user ID and password, provided by your system administrator, set-up with access to Settlements Direct, see Participant Rights Administration User Interface Guide (see 8.1). 2.9 Reallocations system terms This table explains the terms used in the Reallocations system. Term Agreement type Counterparty Credit participant CSV Debit participant Ex ante reallocations Ex post reallocations Party Profile types Reallocation Explanation Specifies different dollar ($) or amounts of energy (MW h) for weekdays, weekends or public holidays within a reallocation period. The authoriser of the reallocation request. The participant who receives a credit settlement transaction in their settlement statement (for any reallocation which has a positive value). Comma-separated variable: a file format for data using commas as delimiters. The participant who receives a debit settlement transaction in their settlement statement (for any reallocation which has a positive value). Reallocations lodged before the target trading intervals occur, where the volume and price are unknown. ex ante reallocations must be submitted and authorised six calendar days plus one business day before the start date of the reallocation, if it is to be relied upon for reducing Maximum Credit Limits (MCLs). Reallocations lodged after the target trading intervals occurred, where the volume and price are known. An ex post reallocation must be authorised at least two days before the final settlement statement date for the billing period where the start date occurs. The initiator of the reallocation request. Flat: same quantity of energy or cost is applied to all days during the reallocation period. Business: same quantity of energy or cost is applied to business days (weekdays) only during the reallocation period. Non business: same quantity of energy or cost is applied for weekends or public holidays (non-business days) during the reallocation period. An authorised request in the Reallocations system, of an agreement between two market participants to settle all or part of their mutual settlement obligations. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 9

3 Viewing Reallocations The Reallocations system lets you view all reallocations that involve your company, including: Reallocations awaiting your authorisation. Reallocations awaiting your counterparty s authorisation. Authorised reallocations in the current outstandings period. Authorised reallocations to take effect in the future. Finished authorisations, included in final settlements. Cancelled or expired reallocations. If you have an authorised reallocation with a start date of today or earlier, and an end date of today or later, it is included in both the Authorised - Current and Authorised - Future menus (the Reallocation ID is the same in both menus). You can also: Click Download file Click Print To download a reallocations record for use in another application. To view and print the details of a reallocation record. The following table explains the information displayed: Note: the information changes according to the chosen menu item. Column Reallocation ID Action Our reference Counterparty Counterparty reference Start date End date Ex ante due by date Ex post due by date What the information means A number automatically assigned by the system when a reallocation is created. It starts with the date on which the reallocation was created (in order of year, month and day), followed by RS (for Reallocations system) and a three-digit number. This is a clickable link, indicating what action you can take on the reallocation. It is either: View for reallocations that have been authorised or that are waiting on counterparty authorisation. Authorise for reallocations awaiting your authorisation. This is an optional field for your company s reference. The aim is to make it easier for you to identify reallocations. The participant ID of the counterparty to the reallocation. This is an optional field for the counterparty s reference. The date on which the reallocation comes into effect. The date on which the reallocation ends. If the reallocation is to take effect in the future, this is the date by which it must be authorised if it is to be recognised for MCL purposes. If the reallocation is to affect a billing period that has already started, this is the date it must be authorised by if it is to be taken into account for the relevant billing period. Once the date has passed the ex post due by date, if the reallocation is not authorised it is moved to the cancelled/expired menu and is no longer available for authorisation. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 10

Column Region ID What the information means For quantity reallocations, this is the source region for the regional reference price to be applied. For dollar reallocations, it is the submitting company s region. Timing Ex ante or ex post, for a further understanding, see What is a reallocation? p. 3. 3.1 Sorting reallocations Click any of the column headings in the grids to sort by ascending or descending order. 3.2 Accessing reallocations This section assumes that you have already logged into the EMMS Web Portal. If you require help to log in, see the Web Portal Login User Guide (see 8.2). The Settlements menu on the EMMS Web Portal is used to access the Reallocations system described in this document. To see the Reallocations menu options: Place your cursor over the Settlements menu item then place your cursor over Reallocations. If you attempt to access any of these options when you are not acting for a registered reallocations participant you can expect to see a warning, as follows: Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 11

3.3 Viewing About Reallocations The About reallocations menu contains a brief explanation of the Reallocations system menus. To view About Reallocations: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click About Reallocations. 3. A screen displays similar to the one below, providing a summary of the Reallocations system menus and a link to the latest user interface guide. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 12

3.4 Viewing F.A.Q. The F.A.Q. menu contains a list of frequently asked questions about reallocations. To view the F.A.Q: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click F.A.Q. 3. A screen displays similar to the one below, providing a list of frequently asked questions for using the Reallocations system. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 13

3.5 Viewing Awaiting Our Authorisation The Awaiting Our Authorisation menu contains a view of reallocation requests awaiting your authorisation. Reallocations not authorised by the ex post due by date are moved to the Cancelled/Expired menu. For a further explanation of ex ante and ex post reallocations, see What is a reallocation? on page 3. To view reallocations awaiting authorisation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Awaiting Our Authorisation. 3. The reallocations Awaiting Authorisation screen displays. Reallocations awaiting your authorisation are listed in order of Counterparty and then Start Date. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click Authorise in the Action column to see further reallocation details and authorise, see Authorising Reallocations on page 36. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 14

3.6 Viewing Awaiting Counterparty The Awaiting Counterparty menu contains a view of reallocation requests awaiting authorisation by your counterparty. Reallocations not authorised by your counterparty by the ex post due by date are moved to the Cancelled/Expired menu. For a further explanation of ex ante and ex post reallocations see What is a reallocation? on page 3. To view reallocations awaiting counterparty authorisation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Awaiting Counterparty. 3. The reallocations Awaiting Authorisation by the Counterparty screen displays. Reallocations awaiting authorisation by your counterparty are listed in order of Counterparty then Start Date and then Region ID. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click View in the Action column to see further reallocation details, see Viewing further reallocation details on page 20. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 15

3.7 Viewing Authorised - Current The Authorised - Current menu contains a view of authorised reallocation requests still within the current outstandings period. To view current reallocations: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Authorised - Current. 3. The Current Authorised reallocations screen displays. Current reallocations are listed in order of Start Date. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click View in the Action column to see further reallocation details, see Viewing further reallocation details on page 20. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 16

3.8 Viewing Authorised - Future The Authorised Future menu contains a view of authorised reallocation requests that take effect in the future that is, they are not yet within the current outstandings period. To view future reallocations: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Authorised - Future. 3. The Future Authorised reallocation screen displays. Future reallocations are listed in order of Start Date. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click View in the Action column to see further reallocation details, see Viewing further reallocation details on page 20. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 17

3.9 Viewing Authorised - Finished The Authorised - Finished menu contains a view of authorised reallocation requests included in final settlements. To view finished reallocations: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Authorised - Finished. 3. The Finished Authorised reallocation screen displays. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click View in the Action column to see further reallocation details, see Viewing further reallocation details on page 20. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 18

3.10 Viewing Cancelled or Expired The Cancelled/Expired menu contains a view of reallocation requests that have automatically expired, were cancelled or rejected. To view cancelled or expired reallocations: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Cancelled/Expired. 3. The Cancelled, Expired or Rejected reallocation screen displays. Sort the columns in ascending or descending order by clicking any of the column headings. 4. Click View in the Action column to see further reallocation details, see Viewing further reallocation details on page 20. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 19

3.11 Viewing further reallocation details More detailed reallocation information is available for each reallocation displayed in the grid. To view further information about a reallocation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click any of the reallocation menu items. 3. In the Action column, click View. Note: if a reallocation is awaiting authorisation by you, instead of View you see Authorise. You can click Authorise even if you only want to view the reallocation s details. Further steps are needed before the reallocation is authorised, so you cannot do any harm if you just view at this stage. 4. The reallocation details are displayed, similar to the example below. o o To print a hard copy of the reallocation, click Print. Use the Settlements menu to select another option. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 20

4 Creating Reallocations You can create a reallocation in two ways: Type the reallocation details directly into the form in the Reallocations system, see Entering a reallocation on page 26. Create and upload a file to automatically fill in the form in the Reallocations system, see Creating and uploading a file on page 27. When you create a reallocation, you submit it to AEMO. At this stage, it is not taken into account for settlements. Your counterparty must authorise it and the Reallocations system must accept it before the reallocation is included in settlements calculations. For further information on Reallocation procedures, see Related resources on page 1. Figure 4: Create a reallocation form 4.1 Reallocation validation Before final submission is accepted, the Reallocations system checks your new reallocation is valid. If you see a validation message after clicking submit it may be because there is a problem with the data in the form. To help you prepare your data correctly, this section explains the fields in the reallocation form. If the system finds a single invalid entry, your reallocation is rejected and an appropriate validation message (in orange text) provided. In this case, you must change your reallocation details according to the validation message and submit your reallocation again. Some examples of validation messages are: Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 21

4.1.1 Our reallocation role This must be either credit or debit, depending on your role in the agreement with your counterparty. To select your role, next to Our reallocation Role, click the radio button to the left of either Credit or Debit. 4.1.2 Our reference This field is not validated by the system. It is optional and has no restrictions on format or content; you can use any format of text and/or characters for this reference. You can use the field to record your own company reference or ID number for the reallocation. Using your own ID system for reallocations can make it faster to identify them. To enter a reference, click the field next to Our Reference and enter your reference ID in text, numbers or a combination of both. 4.1.3 Start date As outlined in the Reallocation procedures, your reallocation requests must comply with the Settlements Calendar on AEMO s website; see Related resources on page 1. If your start date does not conform to these rules, the Reallocations system rejects your reallocation. For a further explanation of the start dates required for ex ante and ex post reallocations, see What is a reallocation? on page 3. To select a start date, do one of the following: Click the calendar icon to select the Start Date from the pop-up calendar. Type the date in dd/mm/yyyy format, for example, 12/01/2010 (use four numbers for the year). 4.1.4 Profile type The profile type can be flat, business or non business. The profile type determines whether the reallocation is applied to: Flat - all days in the reallocation period. Business - weekdays from Monday to Friday that are not public holidays. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 22

Non business - Saturdays, Sundays and public holidays listed in the Settlements Calendar. To select a Profile Type, click the drop-down arrow and select a type from the list. 4.1.5 Agreement type The agreement type is the trading amount, this must be either a dollar ($) or quantity (MW h) value. If the Agreement Type is Dollar ($), the values entered for the reallocation are direct dollar amounts. The dollar amount is applied for the respective trading interval for each day of the reallocation (see Profile type above). Normally only a single dollar value is specified in the first trading interval. If the Agreement Type is Quantity (MW h), the values entered for the reallocation are energy (MW h) values. To determine the transaction amount, the energy value is multiplied by the regional reference price for the region selected, for each trading interval. To select an Agreement Type, click the drop-down arrow and select from the list. 4.1.6 Counterparty participant ID This must be the participant ID of a company registered with AEMO for participation in the market and for participation in the Reallocations system. It cannot be the same as the participant ID attached to the user ID of the person creating the reallocation (in other words, you cannot create a reallocation and nominate your own company as the counterparty). To select a Counterparty Participant ID, click the drop-down arrow and select from the list. 4.1.7 Counterparty reference This field is not validated by the system. You can record your counterparty s company reference or ID number for the reallocation, if you know it. This field is optional and has no restrictions on format or content. To enter a Counterparty Reference, click the field and enter your reference ID in text, numbers or a combination of both. The following message displays if your chosen counterparty is not registered for participation in the Reallocations system: Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 23

4.1.8 End date The end date cannot be earlier than the start date. It can however, be the same date for a one-day reallocation. This arrangement would suit the situation where two participants had a standing agreement to reallocate settlements arising from a cap-style hedge, and market prices exceeded the cap value for one day only, triggering a hedge payment. To select an End Date, do one of the following: Click the calendar icon to select the End Date from the pop-up calendar. Type the date in dd/mm/yyyy format, for example, 12/01/2010 (use four numbers for the year). The following message displays if you enter a start date later than the end date: 4.1.9 Reference region ID If the Agreement Type is Quantity (MW h), the Reference Region ID must be a valid NEM region. If the Agreement Type is for a Dollar ($) reallocation choose your company s region. The Reference Region ID must be entered for dollar reallocation requests, but is not used in determining the resulting settlement transactions. To select a Reference Region ID, click the drop-down arrow and select a region from the list. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 24

4.1.10 Intervals and values The column headings displayed in the lower part of the form depend on what you selected for the agreement type. There must be a value recorded for each of the 48 trading intervals. The value can be zero, but it must be present. If you are creating a Dollar ($) reallocation, you do not need to distribute the dollar amount over all 48 intervals; you can enter the total amount for the day in the first trading interval and enter zero in all other fields. The following message displays if you do not enter a dollar value: If you are creating a Quantity (MW h) reallocation and there is to be no energy sold for a given interval, you must type 0 (zero) in each field. To enter values, click each required field and enter the value in whole dollars or quantity amounts (the example below is for a Dollar ($) Agreement Type). Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 25

4.2 Entering a reallocation For help accessing the Reallocations system, see Viewing Reallocations on page 10. To enter a reallocation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Create a Reallocation. 3. The Create a reallocation screen displays. Fill in the form as described in Reallocation validation on page 21 and click Submit. o o You can also fill in the form by clicking Upload/Create to upload a prepared.csv file, see Creating and uploading a file on page 27. Click Clear, to clear the form and start again. 4. The reallocation is validated; you may see a validation message or the details of your reallocation for review. If you see a validation message change your reallocation details according to the validation message and submit your reallocation again. 5. You must review the reallocation details and click the confirmation checkbox at the top of the Create Reallocation interface to confirm and activate Submit. Note: new reallocation requests require confirmation of the existence of an underlying contract underpinning the reallocation. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 26

6. Click Submit again to complete the reallocation. o o Click <<Back to change any details on the form. Click Print to create a hard copy of the reallocation details. Note: A Reallocation Total is automatically supplied, and the Reallocation Status is Not submitted. If you see the validation message This transaction is not permitted as it will cause a breach of your Trading Limit you cannot submit the reallocation at this time. This validation message advises you that the reallocation you are submitting is not allowed for prudential reasons. You must change your reallocation accordingly or contact AEMO Metering and Settlements for assistance. 7. After successful submission of your reallocation, you are returned to the Create a reallocation screen and the new reallocation is displayed in the Awaiting Counterparty Authorisation menu. Your counterparty sees the new reallocation the next time they log in or refresh their screen, see Viewing Awaiting Counterparty on page 15. 4.3 Creating and uploading a file There are three steps involved in creating your reallocation using a.csv file. First, you prepare your data, then create the file and then upload it to the Reallocations system. It is helpful if you first read Reallocation validation on page 21, so you can see the layout of the data in the Web Portal. Later in this section, there are examples of the format and order of presentation that you must use when setting up your file. There are three ways to create your.csv file. You can create it from scratch; download a template or downloading an existing reallocations record. Downloading an existing reallocations record or template is the easiest way to create your.csv file; see Downloading a template on page 31 and Downloading an existing reallocations record on page 32. If you want to create your.csv file from scratch, use one of the below formats: Spreadsheet, see Creating a spreadsheet on page 29. Plain text, see the Creating a plain text file on page 29. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 27

4.3.1 Creating a file To create the.csv file from scratch: 1. Prepare the CSV data; see Preparing the data on page 28. 2. Create the file in spreadsheet or plain text format as described in the examples; see Creating a spreadsheet on page 29 or Creating a plain text file on page 29. 3. Save your file (name it whatever you like) and follow the instructions for Uploading the file on page 33. 4.3.1.1 Preparing the data For help with the CSV format, see the AEMO CSV Data Format Standard (see 8.2). Note: the asterisks (*) identify mandatory data; do not include them in your file. Label CREDITPARTICIPANTID* DEBITPARTICIPANTID* REGIONID* AGREEMENTTYPE* CREDITREFERENCE DEBITREFERENCE What you enter The participant ID of the company to be credited at settlement time. The participant ID of the company to be debited at settlement time. For quantity, reallocations enter the source region for the regional reference price that is to be applied. For dollar reallocations, enter your company s region. This can be MW h if the reallocation relates to megawatt hours or $ if it relates to dollar amounts. This is an optional field where you can record a company reference or ID for the reallocation. It is to help participants to identify reallocations quickly according to their own system. In this case, the field is for the reference or ID number used by the party to be credited in the reallocation. There are no restrictions on format or characters to be used in this field. This field is also optional. The company reference or ID for the reallocation can be entered here for the party to be debited in the transaction. Again, there are no restrictions on format or characters to be used in this field. For each of the 48 half-hour intervals in the day you need to specify the following: Label What you enter DAYTYPE* Enter FLAT, BUSINESS or NON_BUSINESS. See Profile type p. 22. STARTDATE* ENDDATE* PERIODID* VALUE* The Start Date must be in the format: dd/mm/yyyy e.g. 01/10/2009. See Start date p. 22. Constraints on what the Start Date can be are explained in What is a reallocation? p. 3, and in the Reallocation procedures (see Related resources p. 1). The End Date must be in the format: dd/mm/yyyy e.g. 01/10/2009. See End date p. 24. This is the number of the relevant trading interval. For example, if the interval is 0:00 to 0:30, its Period ID is 1. If the interval is 16:00 to 16:30, its Period ID is 32. The Agreement Type in Quantity (MW h) or Dollar ($) values to be charged or debited for this period. See Agreement type p. 23. If it is zero, you must enter a zero and not leave a blank. If this is a dollar reallocation, you do not have to spread it across all of the intervals. You can enter the total dollar value in the first interval s value field and just put zero in all of the others. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 28

4.3.1.2 Creating a spreadsheet Important Note: in the spreadsheet format, it is very important to match the columns. The blank sections are vital placeholders and without them, the Reallocations system cannot read your file. You must include data in the columns exactly as shown in the sample. Note: the example shows only 28 trading intervals. You need to supply data for the whole 48 intervals. Note also that columns A and C require data that has not been described previously. You should enter that data exactly as shown; otherwise, your file is not accepted. 4.3.1.3 Creating a plain text file Important Note: in the plain text file format, it is very important to match the commas. The blank sections are vital placeholders and without them, the Reallocations system cannot read your file. You must include data in the columns exactly as shown in the sample. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 29

Note: the example shows only 39 trading intervals. You need to supply data for the whole 48 intervals. Note also that the first and third sections require data that has not been described previously. You should enter that data exactly as shown; otherwise, your file is not accepted. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 30

4.3.2 Downloading a template To download a template: 1. Place your cursor over the Settlements menu item then place your cursor over reallocations. 2. Click Create a Reallocation. 3. On the Create a Reallocation screen, click Upload/Create. 4. The Upload Reallocation form displays, click Download Template. 5. On the File Download screen, click Open. 6. Enter your data in the spreadsheet according to the format in Creating a spreadsheet on page 29. 7. Save your file (name it whatever you like) and follow the instructions for Uploading the file on page 33 Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 31

4.3.3 Downloading an existing reallocations record Note: this option can also be used if you want to work with your reallocation data in another application. To download an existing reallocation record: 1. Place your cursor over the Settlements menu item then place your cursor over reallocations. 2. Click any of the below menu items. 3. Select the record to download and click Download file. 4. On the File Download screen, click Open. 5. Change the data in the spreadsheet according to the format in the Creating a spreadsheet on page 29. 6. Save your file (name it whatever you like) and follow the instructions for Uploading the file on page 33. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 32

4.3.4 Uploading the file To upload your file: 1. Place your cursor over the Settlements menu item then place your cursor over reallocations. 2. Click Create a reallocation. 3. On the Create a Reallocation screen, click Upload/Create. 4. The Upload Reallocation screen displays, click Browse. 5. In the Windows dialog box, locate the file you created on your computer and click Open. 6. Click Upload File. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 33

7. The Create a reallocation screen displays with data from your file uploaded to the reallocation form. Check your entries and make any necessary changes. If there is a problem with the data or the format of your file, a validation message similar to the one below displays. Fix your file and upload it again. Note: for help with the CSV format, see the AEMO CSV Data Format Standard (see 8.2). 8. Click Submit. If you decide not to proceed with the reallocation, click Clear to clear the form. 9. The Create reallocation confirmation screen displays. Review the reallocation details and click Submit again to complete the reallocation. o o Click <<Back to change any details on the form. Click Print to create a hard copy of the reallocation record. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 34

10. You are returned to the Create a reallocation screen. The new reallocation is displayed in the Awaiting Counterparty Authorisation menu; see Viewing Awaiting Counterparty on page 15. Your counterparty sees the new reallocation the next time they log in or refresh their screen. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 35

5 Authorising Reallocations If you are the counterparty to a reallocation, you are notified by the submitting company when it is available for authorisation. Before the reallocation can come into effect, you must authorise it. Before authorising, check the submitted details carefully because, although you re-enter the details to confirm them, your re-entered details must match exactly what was submitted, otherwise the authorisation is rejected. There is one exception to this, and it is the debit and credit party reference. If you are the debit party, you can change or add your company s reference for the reallocation in the debit party reference field. Similarly, if you are the credit party you can change or add your company s reference for the reallocation in the credit party reference field. You cannot alter the other party s reference. If any details shown on the form are incorrect, you need to contact the counterparty and organise the details to be corrected. The counterparty then submits a new reallocation with the correct details. When the counterparty submits a new reallocation, be sure to select the new one for authorisation (not the incorrect version). 5.1 Authorisation validation The Reallocations system checks your authorisations are valid. If you see a validation message after submitting an authorisation, it may be because there is a problem with the data submitted. To help you prepare your data correctly, this section explains some of the rules you need to apply when authorising reallocations. Figure 5: Authorise reallocation form The following rules are applied to the data you enter when authorising a reallocation. If the system finds a single invalid entry, your authorisation is rejected. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 36

5.1.1 Debit participant ID This field is your participant ID if you are the party to be debited in the transaction; otherwise, it is your counterparty s participant ID. If the debit participant IDs are incorrect, you need to contact your counterparty and organise the details to be corrected. Debit Participant IDs must match otherwise the authorisation is rejected. 5.1.2 Credit participant ID This is your participant ID if you are the party to be credited in the transaction; otherwise, it is your counterparty s participant ID. Credit Participant IDs must match otherwise the authorisation is rejected. 5.1.3 Start date You must be aware of the rules applying to start dates because even if the original reallocation record has been accepted, you must authorise it before it expires. Reallocations Awaiting Our Authorisation and Awaiting Counterparty include the final authorisation dates. This depends on whether they are ex ante or ex post reallocations. For a further explanation, see What is a reallocation? on page 3. Start Dates must match otherwise the authorisation is rejected. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 37

To select a start date, do one of the following: Click the calendar icon to select the Start Date from the pop-up calendar. Type the date in dd/mm/yyyy format, for example, 12/01/2010 (use four numbers for the year). 5.1.4 Profile type The profile type can be flat, business or non-business. The profile type determines whether the reallocation is applied to: Flat - all days in the reallocation period. Business - weekdays from Monday to Friday that are not public holidays. Non-business - Saturdays, Sundays and public holidays listed in the Settlements Calendar. Note: profile types must match otherwise the authorisation is rejected. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 38

To select a Profile Type, click the drop-down arrow and select from the list. 5.1.5 Agreement type The agreement type is the trading amount, this must be either a dollar ($) or quantity (MW h) value. If the Agreement Type is Dollar ($), the values entered for the reallocation are direct dollar amounts. The dollar amount is applied for the respective trading interval for each day of the reallocation (see Profile type above). Normally only a single dollar value is specified in the first trading interval. If the Agreement Type is Quantity (MW h), the values entered for the reallocation are energy (MW h) values. To determine the transaction amount, the energy value is multiplied by the regional reference price for the region selected, for each trading interval. Agreement Types must match otherwise the authorisation is rejected. To select an Agreement Type, click the drop-down arrow and select from the list. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 39

5.1.6 Debit party reference This is an optional field. If you are not the debit party, you cannot enter anything in this field. If you are the debit party, you can record your own company s reference or ID number for the reallocation. If the counterparty has recorded your company s reference incorrectly or omitted it, you can enter the correct reference. To enter a Debit Party Reference, click the field and enter your reference ID in text, numbers or a combination of both. 5.1.7 Credit party reference This is an optional field. If you are not the credit party, you cannot enter anything in this field. If you are, you can record your own company s reference for the reallocation. If the party has recorded your company s reference incorrectly or omitted it, you can enter the correct reference. To enter a Credit Party Reference, click the field and enter your reference ID in text, numbers or a combination of both. 5.1.8 End date The end date must be equal to or after the start date; it cannot be earlier than the start date. It can however be the same date for a one-day reallocation. This arrangement can suit the situation where two participants had a standing agreement to reallocate settlements arising from a cap-style hedge, and market prices exceeded the cap value for one day only, triggering a hedge payment. Both End Dates must match otherwise the authorisation is rejected. To select an end date, do one of the following: Click the calendar icon to select the End Date from the pop-up calendar. Type the date in dd/mm/yyyy format, for example, 12/01/2010 (use four numbers for the year). Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 40

5.1.9 Reference region ID If the Agreement Type is Quantity (MW h), the Reference Region ID must be a valid NEM region. This must be entered in dollar reallocation requests, but is not used in determining the resulting settlement transactions. If the Agreement Type is for a Dollar ($) reallocations choose your company s region. Both Reference Region IDs must match otherwise the authorisation is rejected. To select a Reference Region ID, click the drop-down arrow and select a region from the list. 5.1.10 Reallocation total The method of calculation depends on the profile type; see Profile type on page 38 for further information. Flat transactions: (end date start date) + 1) the total of values in all intervals. The final figure is rounded to the nearest two decimal places. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 41

Business transactions: (total business days from start to end dates inclusive) the total of values in all intervals. The final figure is rounded to the nearest two decimal places. Non-business transactions: (total non-business days from start to end dates inclusive) the total of values in all intervals. The final figure is rounded to the nearest two decimal places. The reallocation total is a checksum only, as it is not used in the calculation of the reallocation transaction amounts. Confirm the reallocation Total is correct by entering it in the field. Both reallocation Totals must match otherwise the authorisation is rejected. 5.2 Authorising a reallocation For help accessing the Reallocations system, see Viewing Reallocations on page 10. To authorise a reallocation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Awaiting Our Authorisation. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 42

3. The reallocations Awaiting Authorisation screen displays with the list of reallocations submitted by your counterparties that are not authorised. For an explanation of the fields, see Viewing Reallocations on page 10. 4. Click Authorise under the Action column. 5. The reallocation details submitted by your counterparty display. Re-enter the reallocation details as described in Reallocation validation on page 21 and click Confirm. 6. Click the confirmation checkbox at the top of the Authorise Reallocation interface to confirm the existence of an underlying contract underpinning the reallocation. 7. The reallocation is validated; you may see either, one of the following validation messages or confirmation of your authorisation. If any details do not match the data entered by the submitting party, you will see a validation message similar to the one below. Either adjust your entries and continue or contact your counterparty to resolve the issue. If you see the validation message You cannot authorise this transaction as it will cause a breach of your Trading Limit, you cannot authorise the reallocation at this time. This validation message advises you that the reallocation being authorised is not allowed for prudential reasons. You must change your reallocation accordingly or contact AEMO Metering and Settlements for assistance. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 43

A successful authorisation displays the following confirmation. 8. Next, you can: o o Click Print to print a hard copy of the authorisation. Use the Settlements menu to select another option. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 44

6 Cancelling Reallocations Occasionally you may want to cancel (before authorisation), reverse or override (after authorisation) a reallocation. Cancelling the reallocation ensures it does not enter into settlement calculations. For help accessing the Reallocations system, see Viewing Reallocations on page 10. 6.1 Cancelling an unauthorised reallocation To cancel an unauthorised reallocation: 1. Place your cursor over the Settlements menu item then place your cursor over Reallocations. 2. Click Awaiting Counterparty. 3. The reallocations Awaiting Authorisation by the Counterparty screen displays. Click View in the Action column to view the reallocation details. 4. Review the details and click Cancel to submit the cancellation. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 45

5. Confirmation of the reallocation cancellation displays and the cancelled reallocation appears in the Cancelled/Expired menu, see Viewing Cancelled or Expired on page 19. Note: the counterparty cannot authorise a reallocation after it has been cancelled. 6.2 Cancelling (reversing) an authorised reallocation Authorised reallocations cannot be cancelled, but they can be reversed by creating a second negating reallocation that nets out the first. You can do this in either of two ways: Use the same reallocation record, using the Reverse option to reverse the Debit and Credit Participant IDs, see Reversing a reallocation below. Create a new reallocation using the same details but enter negative amounts for the Quantity (MW h) or Dollar ($) values see Entering a reallocation on page 26. The new reallocation must be authorised by the counterparty before it takes effect and is subject to the standard rules set down in the Reallocation procedures, see Related resources on page 1. 6.3 Reversing a reallocation To reverse an authorised reallocation: 1. View the details of the reallocation to be reversed; for help, see Viewing Reallocations on page 10. 2. Click Reverse. o Click Print to create a hard copy of the reallocation record. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 46

3. Click Submit to create the reverse reallocation. o o Click Print to create a hard copy of the reallocation record. Click << Back to return to the reallocation details. 4. The reversed reallocation displays on the reallocations Awaiting Authorisation by the Counterparty menu; see Viewing Awaiting Counterparty on page 15. Note: the counterparty must authorise the new reallocation for the reversal to take effect. Doc Ref: MMSTDPD167 v3.05 15 April 2011 Page 47