Congestion Management on the Italian border for the year 2005 European Electricity Regulatory Mini-Forum on congestion management Milan, 25 th January 2005
![2 NTC on the Northern Italian Border [MW] - year 2005 • NTC values](https://present5.com/presentation/9d1564d9cbb7c7c20a52198e8dfe052a/image-2.jpg "2 NTC on the Northern Italian Border [MW] - year 2005 • NTC values")
2 NTC on the Northern Italian Border [MW] - year 2005 • NTC values assessed by a Technical Task Force (TTF) and approved by a Steering Committee composed by all the TSOs involved • Definition of ‘balanced’ and ‘unbalanced’ NTC values • Definition of a procedure to be applied in case of security problems and/or changes of NTC values • Possibility to review NTC values during the year according to TTF analisys and operation results (1) New S. Fiorano-Robbia line in operation -2 -
3 Congestion management on the Italian border - year 2005 NTC Capacity managed by GRTN: ü Congestions on the Italian electrical border are solved in the day ahead market: selling bids and bilateral transactions are referred to the Italian virtual zones NTC capacity assigned by neighbouring TSOs: ü Assignees can offer in the day ahead market or schedule bilateral transactions (North zone) -3 -
4 Congestion management on the Italian border - year 2005 Congestion problems on the Italian electrical Pool transactions Virtual Zone €/MWh border are solved in the Day Ahead Market through implicit auctions referred to each virtual zone for the capacity managed by GRTN : Pvirt z X ü selling bids ü bilateral transactions Implicit Auction F VIRTUAL ZONE Bilateral transactions Bids/Bilateral transactions through capacity assigned by RTE Implicit Auction CH VIRTUAL ZONE Selling Bids/Bilateral transactions through capacity assigned by CH TSOS NORTH ZONE (North-West border) -4 - MWh
5 Congestion management on the Italian border - year 2005 Pool transactions Qi Virtual zone Pvirt TL North zone PN Virtual Zone PPUN €/MWh Value of CCC rights Value of CCCI rights Qi > TL PPUN Pvirt PN X Pvirt MWh (PN – Pvirt) Congestion on the border (PPUN – PN) Congestion in Italy Bilateral transactions PPUN = Italian national price (Buy) PN = North zone price Pvirt = Virtual zone price -5 - Selling Bids TL
6 Balancing (real time market) Day (n-1) 10: 30 AM Energy Day (n) 2: 30 PM 9 PM Energy Services Day ahead market (MGP) Adjustment Market (MA) Dispatching services market (MSD) System Marginal Price Pay as bid 0: 0 12 PM Services Real time balancing session Pay as bid MSD highlights § Only one set of offers (Buy/sell) used for both day ahead and real time sessions § Qualified power units only § GRTN as counterpart üReserve üBalancing üVoltage adjustament üUnplanned adjustaments: üIntra-zone congestion management unique • Outages • Real time countermeasures -6 -
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