The Ten-Year Network Development Plan of IPTO

Transcript

1 SEERC 2nd Technical Advisory Committee meeting 14 th January 2016, Athens The Ten-Year Network Development Plan of IPTO Y. Kabouris Director of Transmission System Planning-IPTO

2 TEN YEAR NETWORK DEVELOPMENT PLAN (TYNDP) IPTO S.A is the Transmission System Operator in Greece. In this context, operation, maintenance and development of the Hellenic Transmission System is performed solely by IPTO. IPTO S.A issues on a yearly basis a Ten Year Network Development Plan that is submitted for approval by the Regulatory Authority of Greece (RAE) after an extended consultation with all the involved stakeholders. TYNDP is the primary investment Plan of IPTO. It is binding by law only for the first three years of the examined horizon. TYNDP covering the period is uploaded in IPTO website ( and following a public consultation has been submitted to RAE in order to be approved. 2

3 TEN YEAR NETWORK DEVELOPMENT PLAN The economic recession resulted in a considerable reduction of electricity consumption: Approximately 3,7% reduction in annual energy consumption comparing the years 2013 and 2012 and 0.9% in 2014 compared to Approximately 10,8% reduction in annual energy consumption compared to the maximum annual energy consumption (recorded in 2008) This load reduction reflects similar reduction in IPTO estimations for the electricity consumption in the coming decade compared to older estimations In addition the increase in distributed generation (mainly photovoltaics) resulted in a reduction of peak power demand as well as the needs to transfer electricity (~9% contribution in 2014) for the electrical loads in the transmission system. As a result there is a potential to delay the implementation of some future transmission projects related mainly to serving loads, without any implications to the security of supply of the Greek power system. Drivers for the Greek Transmission System Development: Connection of RES generation in the framework of National and European targets for an increased RES penetration (40% in the electricity sector) Interconnection of Greek islands (security of supply, reduction of the energy cost, environmental issues) 3 Major problem: Reaction of the public and delays in the permitting process.

4 Evolution of the Net Electricity Demand (pumping not included) Εξέλιξη Συνολικής Ζήτησης TWh GW Ζήτηση Ηλεκτρικής Ενέργειας (TWh) Ετήσια Αιχμή (GW)

5 Ιαν-11 Φεβ-11 Μαρ-11 Απρ-11 Μάι -11 Ιουν-11 Ιουλ-11 Αύγ-11 Σεπ-11 Οκτ-11 Νοε-11 Δεκ-11 Ιαν-12 Φεβ-12 Μαρ-12 Απρ-12 Μάι-12 Ιουν-12 Ιουλ-12 Αύγ-12 Σεπ-12 Οκτ-12 Νοε-12 Δεκ-12 Ιαν-13 Φεβ-13 Μαρ-13 Απρ-13 Μάι-13 Ιουν-13 Ιουλ-13 Αύγ-13 Σεπ-13 Οκτ-13 Νοε-13 Δεκ MW (πλην στέγες) MW (στέγες) Σύνολο Development of photovoltaic systems during the last three years

6 (MW) (TWh) Influence of distributed generation Επίδραση διεσπαρμένης παραγωγής από ΑΠΕ στη Ζήτηση Ηλεκτρικής Ενέργειας Συνολική Ζήτηση Ζήτηση Συστήματος Επίδραση διεσπαρμένης παραγωγής από ΑΠΕ στην Ετήσια Αιχμή Φορτίου Συνολική Αιχμή Αιχμή Συστήματος

7 Electricity demand in (MWh) (MW) Μηνιαία Ζήτηση Ηλεκτρικής Ενέργειας για το 2014 Συνολική Ζήτηση Ζήτηση Συστήματος Ιαν Φεβ Μαρ Απρ Μάϊος Ιουν Ιουλ Αυγ Σεπ Οκτ Νοε Δεκ Μηνιαία Αιχμή Φορτίου για το Συνολική Αιχμή Αιχμή Συστήματος Ιαν Φεβ Μαρ Απρ Μάϊος Ιουν Ιουλ Αυγ Σεπ Οκτ Νοε Δεκ

8 Comparative Energy Balances Κατανομή Ισοζυγίου Παραγωγής για το 2014 Υδροηλεκτρικ ά 7,75% ΑΠΕ 17,14% Φυσικό Αέριο 12,57% Πετρέλαιο 0,00% Διασυνδέσεις 17,49% Λιγνίτης 45,04% Share of RES in 2014 ~ 26%

9 The most important transmission projects commissioned during the last four years EHV S/S N. Santa and connection to the 400kV transmission system EHV S/S Lagada and 150kV as well as 400kV connection networks EHV S/S Aliveri and 150kV as well as 400kV connection networks (including a cable part) EHV S/S Megalopoli and 150kV connection networks > kV/20kV new SS for the connection of new RES generation as well as in order cope with needs related to the distribution network Cable connection of the Evia island and the Attica region(nea Macri) in order to allow the increase of wind penetration in Evia

10 Finalization of the 150kV Attica-Evia interconnection in order to cope with new wind farms connection (energisation of the 22 nd of June 2015) 1. Cable connection Nea Makri-Polypotamos Link: Underground cables + submarine cable + overhead transmission line (yellow line) kV double circuit overhead transmission line towards the south part of Evia 3. It will allow the safe interconnection of new wind farms with a total installed capacity of 450MW 10

11 Demand forecast for the period (ΤWh) Εξέλιξη Συνολικής Ζήτησης Ενέργειας Ιστορικά στοιχεία Σενάριο Χαμηλής Ζήτησης Σενάριο Αναφοράς Σενάριο Υψηλής Ζήτησης έτος Σύγκριση προβλέψεων ζήτησης ΑΔΜΗΕ (Σενάριο Αναφοράς) ΔΠΑ ΔΠΑ (ΤWh) έτος

12 The most important Transmission Projects included in TYNDP Small amendments compared to the TYNDP Evia-Attica cable connection for the connection of new wind farms in Evia New 400kV Lagadas-Filippoi OHL Development of the 400kV in the Peloponnese peninsula, connection to the 400kV backbone of continental Greece and construction of a new EHV S/S in Korinthos New EHV S/S Rouf. Second BG-GR interconnection between Nea Santa (GR)- Maritsa (BG) (PCI) Cable interconnection of the Greek islands Cycladic islands interconnection (under construction) Interconnection of the island of Crete with the mainland transmission system (under study) The interconnection of the Greek islands will result in a significant reduction of the production cost, the increase of security of supply and better exploitation of the RES potential in the Aegean Sea. A considerable environmental improvement in these islands is also expected (especially concerning the Cycladic islands)

13 Phase A

14 Phase Β

15 Phase C

16 New 400kV Lagadas-Filliopoi OHL

17 New BG GR interconnector PCI Project It will contribute considerably to the NTC increase at the North borders of Greece

18 Development of 400kV network in Peloponese Doubling the penetration level of intermittent RES

19 New GIS EHV S/S in Rouf using GIS technology Considerably increase of SoS in Athens area

20 Interconnection of Crete with the mainland transmission system Annual energy consumption ~3ΤWh (~4% of the total National consumption) Relevant studies started from the mid 80s. During this period an HVDC solution has been examined. Connecting points were the cape Spatha in Chania/Crete and an area close to Monemvasia in Peloponese. The nominal power foreseen was 600MW (2x300MW). The project was postponed due to financial issues. In 2011 a new study has been conducted by a working group composed by representatives from HTSO (the former Greek TSO), PPC and RAE. A large number of alternative scenarios was examined including the most technologically evolved solutions such as HVDC links utilizing voltage source converters (VSC). At the beginning of 2013 and update of the basic scenarios took place and after that dynamic stability studies have been performed. Based on the results of the studies mentioned above, IPTO works intensively for the realization of this project. The expected commissioning date is foreseen during the current decade.

21 Interconnection of Crete with the mainland transmission system Εξέλιξη Φορτίων Κρήτης τα τελευταία 50 χρόνια The definition of the connection point in the mainland is pending

22 TYNDP Budget Ten Year investment plan over 2200million Euros

23 In conclusion IPTO implements for the period a very ambitious program for the development of the National Transmission System that includes the project of development of a 400kV network in Peloponnese, the construction of new EHV S/S and the interconnections of Cycladic Islands and Crete. T he main drivers include the preservation of high security of supply levels taking into account future needs, the achievement of National targets for RES development and the interconnection of electrically isolated island regions in order to reduce their production cost. This program necessitates considerable investments which are not easy to achieve considering the prolonged economic recession. Nevertheless, IPTO will undertake all necessary activities and efforts to successfully materialize the Plan. Any possible funding sources will be investigated.

24 24 Thank you