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www.mercatoelettrico.org
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The ITA-SI MC adopts a decentralized approach, where each PX manages its own trading
system and runs its own matching software, which incorporates a common matching
algorithm taking into account the overall grid model defined by the Italian and
Slovenian TSO for their respective markets.
As a consequence:
- market participants of Italian and Slovenian market will
submit bids and offers to the trading system of their local PX;
- each TSO will communicate to its local PX the information
regarding the daily ATC values between Italy and Slovenia to be allocated though
the ITA-SI MC and PXs publish this information on their respective trading platform;
- GME and BSP will:
- exchange all relevant information regarding bids and offers
(in anonymous way) of respective market participants;
- exchange all relevant information regarding ATC values.
In particular:
- GME will communicate to BSP transmission limits between the zones of
the Italian markets;
- GME and BSP will check that the ATC values, between Italy and Slovenia,
communicated by respective TSO, are the same.
- simultaneously run the respective matching software in
order to compute the market results;
- check the consistency of the calculated market results
and publish the results.
An indicative timeline of the operations will be:
- Between 07:00 Am and 7:45 Am: for each direction TSOs
calculate and confirm daily ATC values to be allocated through the ITA-SI MC, i.e.
implicit auctions, respectively
- 07:45 Am: daily ATC are made available to PXs according
to respective national arrangements between TSO and PX. PXs check whether received
daily ATC values are the same and publish them on their respective trading platform[1].
- 09:00 Am: gate closure of the Italian and Slovenian day-ahead
market.
- By 09:40 Am: PXs exchange relevant anonymous bids and
offers of their market participants, structure of the zones of their internal market
and transmission limits between the zones of their internal market.
- By 09:50 Am: each PXs calculate market results.
- By 10:15 Am: PXs check the consistency of market results.
- By 10:25 Am: each PX confirms, make available to its local
TSO (according to national arrangements) and publishes market results on their respective
trading platform[2] .
For the starting year of 2011, the indicative daily ATC values to be allocated through
the ITA-SI MC, i.e. implicit auctions, will be in the range of ATC values currently
allocated through daily explicit auction
[1]
This information is also published on the web site of PXs.
[2]
This information is also published on the web site of PXs.
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