PR181-01 CRR Framework Upgrade Project Update for Congestion Management Working Group (CMWG) July 10, 2017

Agenda Project Overview Benefits High Level Timeline Initial 60 Day Market Notice Questions/Open discussion

Project Overview The CRR Framework Upgrade Project will improve the ability to support and maintain the CRR system by upgrading the User Interface framework and its related components to current versions. It will also position the ERCOT CRR system to be maintained on a standard software support contract. Additionally, this project will include SCR777 Bilateral CRR Interface Enhancement and NPRR648 Remove References to Flowgate Rights

Benefits Improved and easier to use validation of portfolios bids and offers Improved uploading of portfolios for auctions and PCRR nominations PCRR Nominations – better information online for the shaping of the year to 40% Better file download capabilities of both private and common

High Level Timeline Market Training, Market Re-qualification commences: September 18, 2017 Market Training, Market Trials, and Market Re-qualification concludes: December 8, 2017 Go Live: January 22, 2018

Initial 60 Day Market Notice 60 Days prior to commencement of Market Re-qualification. Expect to see the message on or before 07/20/2017. Contents will include: Reference to the “CRR Market User Interface (MUI) Upgrade” Dates for Market Re-qualification 09/18/2017 to 12/08/2017 High level description of re-qualification process Similar to current qualification process Information about user training opportunities User manual Web based training Webex demonstration sessions Call to action for current Account Holders and Counter-Parties to confirm access to Market Operations Test Environment (MOTE)

Open Discussion and Questions