In connection with the end of summer time on 30 October 2011, we inform that for the 30/10/2011 delivery date, there will be an additional instrument in trade regarding Day Ahead Market instruments, marked RDN7_30-10-2011_H02a. The results of the trading session for all Day Ahead Market hourly contracts will be available in the quotation and clearing systems.

We also inform that, for RDS instruments in the quotation system, an additional instrument, marked RDS7_30-10-2011_H02a will not be active and placing an order for a RDS7_30-10-2011_H03 instrument will mean placing an order for an additional 02a hour as well.

In the quotation system, there will not be the results of the Market Coupling auction for the additional hour; however, the results for all instruments will be available in the clearing system, according to the market message announced on the POLPX website.

In the clearing system, on the Day Ahead Scheduling tab, for transactions concluded on the RDN hourly and the RDS instruments, the additional hour will be marked 02a. For the Members of the Exchange who submit electricity sale contracts (ZUSE) for more than one scheduling unit, changing the schedule will be possible on the previous conditions: in the clearing system (manually) or in the Aplus auxiliary application (by sending a file), making sure the syntax of the file is correct:

Code of scheduling unit; amount of electricity in hour 1; ............; amount of electricity in hour 24; amount of electricity in hour 2a;

The following table summarises the marking of the additional hour in the quotation and clearing systems on the day summer time ends.

* placing an order for hour 03 means placing an order also for the additional hour; hour 02a is not active in the quotation system

** the results for hour 03 mean results also for the additional hour; hour 02a is not active in the quotation system (no data for hour 02a)