Report on Transparency. Final version CWE. IG Transparency. Electricity Regional Initiative Central Western Regional Electricity Market

The Central Western Electricity Regional Energy Market (REM), which is a part of ERGEG's Electricity Regional Initiative, is engaged in harmonizing congestion management and transparency in the Central Western electricity market consisting of Belgium, France, Germany, Luxemburg and The Netherlands. his report contains transparency requirements based on the Congestion Management Guidelines (Commission Decision of 9 November 2006, 2006/770/EC, amending the Annex to Regulation (EC) 1228/2003 on conditions for access to transmission network for cross-border exchanges in electricity, hereinafter cited as CM Guidelines) but taking also into account ERGEG Guidelines of Good Practice on Information Management and Transparency (GGP-IMT). Generally, the basis for harmonization of the transparency rules within the Central Western REM is provided by this report. However, there are some restrictions, it has to be stressed that the report only refers to the information requirements set out in the CM Guidelines that are regularly updated. Also, national publication requirements which might go beyond what is prescribed here are not touched. Furthermore, the change of the market design or the legal background might require adoptions of the publication requirements foreseen in this report. One of the main impediments identified by the regulators was the data delivery from generation and consumption units located in the distribution grids. Market participants concerned (also generators and significant consumption units) are obliged to provide the TSOs responsible for publication of all relevant data concerning cross-border trade according to point 5.5 CM Guidelines, with the relevant data. Therefore, TSOs shall be able to get data from generators and significant consumption units connected to the transmission network. Consequently, it is proposed here that each NRA or other competent authority could oblige DSOs to provide data on generation connected to distribution grids to the TSOs in case TSOs do not have access to the data required. Regarding the location of publication, a publication on a common European website (like ETSOVista) is envisaged. This is important as transparency should not only be harmonised at a regional level but also at a European level. However, first priority is to harmonise the information-items to be published and get this information published. As publication on the homepages of the power exchanges is partly already established practise and this also results in some kind of aggregation this could be accepted by regulators. PEX'es as information platform is widely acknowledged as a helpful tool. The timeframe for implementation takes into account the type of information required. Information on load (cf. chapter 1.1), transmission and interconnection (cf. chapter 4.2) and balancing (cf. chapter 4.4) has to be provided on national homepages of TSOs (alternatively on the homepages of the power exchanges) until 1st of January 2008. As this data is mainly aggregated data a publication of these data on a common European website has to be in place until 1st of July 2008. Information on generation (cf. chapter 4.3) shall be published on national homepages of TSOs (alternatively on the homepages of the power exchanges) until 1st of July 2008 as publication of these transparency requirements would take some effort for implementation as data delivery processes from generation and consumption units connected to distribution grids to the TSOs have to be established. Publication of wholesale market data (chapter 4.5) can voluntarily be published. This information is already available to a large extent.