Main DesignCompliance Analysis

The characteristics and technical requirements that must be met by the winning biddersof transmission auctions lots are set in the Technical Annexes of the auction notices, which include the participation of ONS in the preparation. This important set of requirements is aimed at the homogeneity of different transmission installations, ensuring their proper integration to the Main Grid, as well as the desired level of the BIPS’s performance.

When the transmission companies winning the lots of auctions elaborate the project’s main design, it is ONS’s attribution to check the compliance with the requirements set in the Technical Annexes andthe Grid Procedures. In 2015, the technical requirements for 49 lots auctioned weredefined and 230 compliance reviews of new transmission installations’main designs were conducted. Compliance analysisof the DC transmission system(bipole 1) main design associated with Belo Monte plant were also carriedout andthe technical requirements for the auction of bipole2 were defined.

After approval of the main design by ANEEL and the development of the project, the transmission companypresents ONS with thefeatures with which the new installations have been built. It is ONS’s attribution to prepare the technical report, which ensures that these new installations have been built in accordance with the auction’sTechnicalAnnex, with the installation’smain design of the and also with the Grid Procedures. This technical report is very important for the integration of these installations to the BIPS. Throughout 2015, 348 compliance assessments of the Main Grid’s new transmission projects were issued as effectively deployed.