1. Market Systems Release Update Modifications Committee Meeting 55 June 19 th 2014 1

2. Deployed successfully to Central Market Systems on May 16th. Change Requests were finalised and closed. Project is now closed. 2 SEM R2.4.0 – May 2014

3. Release Cut-Off Date has passed. Relevant Design Notes received from our vendors. Design notes now under review internally. Project schedule agreed with vendor – software delivery agreed for end of July. Test Phases will commence following successful software delivery. 3 SEM R2.5.0 – May 2014

4. The following table outlines the approved scope for the release: 4 SEM R2.5.0 – November 2014 SEM R2.5.0 Approved Scope CR RefDescription SEM_PC_CR322Eligible Availability for Energy Limited Units Under Test SEM_PC_CR327Event Queuing SEM_PC_CR333Functionality to apply PUGDOG TTariff on a Trading Day basis SEM_PC_CR332Issue Zero Invoices SEM_PC_CR330Changes to IART Report Total Vendor Effort: 2144 hours

5. Design closed July 25 th Publication of MPUD Aug 11 th Software delivery July 31 st System Integration Test Execution Aug 4 th to Oct 10 th Market Test Execution Oct 13 th to Oct 24 th Deployment * Nov 14 th * subject to successful completion of all testing. 5 SEM R2.5.0 – November 2014 - Milestones

6. Release Cut-Off Date is Sept 5 th (Friday) 2014. 6 SEM R2.6.0 – May 2015

7. 7 Questions