1. Dr. Peter Bauhofer AT ID Session 6 – Block 1 – Question 2 Barcelona 12-15 May 2003 1 Experiencies After the First Year of Full Market Liberalization In Western Part of Austria www.aundb.at

2. Dr. Peter Bauhofer AT ID Session 6 – Block 1 – Question 2 Barcelona 12-15 May 2003 2 Austria has liberalized its E-Market 100 % in 2001 Market model is a balance group system This market model works very well A&B is an... Imbalance Settlement Responsible for Electricity&Natural Gas ETSO EIC Local Issuing Office and Green Energy Quota Management Institution Imbalance settlement needs a high level quality-management in particular at distribution grid operators

3. Dr. Peter Bauhofer AT ID Session 6 – Block 1 – Question 2 Barcelona 12-15 May 2003 3 24 Counter Energy data management Energy billing system ZFA MDE manuell Counter Data acquisitionData preparation Data processing - Time row management Management load profile procedure Contract management BGM, producer Data aggregation anddispatch billing Data supply (Internet) Data supply (Internet) complement correctitude Default value assignment of meeteringpoints producer, BGM Load profile MSCONS Metering-service Quality assurance grid operator Quality assurance Imbalance settlement responsible

4. Dr. Peter Bauhofer AT ID Session 6 – Block 1 – Question 2 Barcelona 12-15 May 2003 4 A&B‘s Market Information System Grid Operators BGM Bidders RZF External Schedules BG-Data Schedules C&S Data Rating Data Auction Data Public www.aundb.at Market participants Market Rules Contracts General Information A&B offers to the market participants a password protected access to the relevant data via web. This access is an essential element of the all-out quality assurance. Further A&B offers unrestricted access to current news, that concern all.

5. Dr. Peter Bauhofer AT ID Session 6 – Block 1 – Question 2 Barcelona 12-15 May 2003 5 A&B Thank you for your attention! www.aundb.at