AEGEAN INTERCONNECTION PROJECT

Transcription

1 AEGEAN INTERCONNECTION PROJECT Athens, 24 th May, 2011

2 Index 1. The Company 2. The Aegean Project 3. Why the interconnection? 4. Interconnection and MSP: discussion subjects 5. Conclusion 2

3 Rokas Group - Installed Wind and PV Farms ROKASGROUP operates and maintains 17 W/Fs of total capacity 255,3 MW and 2 Photovoltaic Farms of total capacity 2,2MW, distributed all over Greece Total installed capacity 257,5MW ROKASGROUP employs over 200 people 3

4 Rokas Group Installed Electrical Infrastructure Medium & High Voltage Grids Medium Voltage Grids ROKAS Owned (Internal Grid) (km) PPC Owned (Connection Grid) (km) Total Overhead Medium Voltage Grids 35,41 41,98 Total Underground Medium Voltage Grids 62 High Voltage Grids Total Overhead High Voltage Grids 20 Substations ROKAS Owned (Number) PPC Owned (Number) Total Substations 20/150 kv 3 2 4

5 Iberdrola Renovables, a world leader Installed Capacity by 1 st Quarter 2011: 2010 Generation: 12,834 MW 25,405 GWh No 1 Wind-energy producer in the world 5

6 IBERDROLA, the utility: managed assets (1) Total installed capacity: MW World leader in wind power, Spain s leading energy group and one of the top 5 electric companies in the world Production: GWh / Distribution: GWh 916 substations, km HV, km M&LV lines (1) year end

7 Index 1. The Company 2. The Aegean Project 3. Why the interconnection? 4. Interconnection and MSP: discussion subjects 5. Conclusion 7

8 The Aegean Project Interconnection of Lesvos, Chios and Limnos with mainland via a 443 km long submarine cable Installation of wind capacity totaling 706MW 8

9 The Interconnection 1High Voltage Direct Current circuit (Evia-Chios) 2 HV AC or DC circuits under investigation Direct current rated voltage: kv 706 MW capacity Submarine cable total length: 443 km 4 converter stations DC/AC Connection to Larimna (mainland) ultra HV centre HVDC links Max Depth (m) Capacity (MW) Lesvos-Aliveri Lesvos-Limnos Chios-Lesvos

10 Interconnection Scenario of Lesvos, Limnos, Chios with the Interconnected System Interconnection of Lesvos-Evia via DC link Interconnection of Lesvos-Chios via AC or DC link Interconnection of Lesvos-Limnos via AC or DC link Mainland Installation of an AC/DC converter station (C/S) close to Larimna 400kV substation Underground lines (HVDC) to connect Larimna S/S with Viotia and Evia East with Evia West landing point Islands Installation of a AC/DC C/S on each island 218km HVDC submarine cable connection from Evia landing point to Lesvos 84km HVDC submarine cable connection from Lesvos to Chios 117km HVDC submarine cable connection from Lesvos to Limnos 10

11 Point to Point vs. Multiterminal Interconnection 11

12 Submarine Cable Cables are placed at a distance of 20m from the sea shore in a common trench of 2m depth that is covered by 25cm of concrete From there onwards and up to a sea depth of 15m, cables are placed in separate trenches of 2m depth From sea depth 15m, cables are inserted in separate trenches of 1m depth 12

13 Key W/Fs Characteristics Wind Turbine Generator (WTG) Characteristics Type G80 / G87 Capacity 2MW Diameter 80m (G80) / 87m (G87) No of Blades 3 Blades Length 42,5m / 39m Voltage of WTG 690 AC Volts Temperature Range -20 to C Electrical Infrastructure per Island No of Converter Stations No of Substations Lesvos 1 2 Chios 1 2 Limnos 1 2 MV of 20, 33 or 66 kv 13

14 Index 1. The Company 2. The Aegean Project 3. Why the interconnection? 4. Interconnection and MSP: discussion subjects 5. Conclusion 14

15 Reasons for the interconnection Geopolitical Connects three islands of national importance with the mainland Strategic Development of RES / reduction of energy dependency on imports / update of electrical infrastructure Environmental Reduced CO 2 emissions / contribution in meeting EU RES targets for 2020 Security of supply Channeling energy into the islands, solving in a reliable way their power supply problems Local acceptance Reduce the electricity bills for local residences 15

16 Index 1. The Company 2. The Aegean Project 3. Why the interconnection? 4. Interconnection and MSP: discussion subjects 5. Conclusion 16

17 Planning and Licensing Conflict Subjects Landing Points for each island interconnected Crossing Evia Island for System interconnection Lying of submarine cables Tectonic faults and Earthquakes Great depths and Long distances 17

18 Electrical System Conflict Subjects Calculation of the interconnection losses Regulation of the active and reactive power Black Start Possibility N-1 and ways of fulfillment (loop connection) Interconnection of Larimna with Chios-Lesvos-Limnos- UHV S/S Filippoi (or Nea Santa) 18

19 Index 1. The Company 2. The Aegean Project 3. Why the interconnection? 4. Interconnection and MSP: discussion subjects 5. Conclusion 19

20 Conclusion There are technical and planning problems. We can deal with them and manage to solve them BUT the CRUCIAL POINT is the LOCAL ACCEPTANCE of this kind of projects 20

21 When you find your path, there s no turning back. IBERDROLA. Thanks for your attention! AEGEAN INTERCONNECTION PROJECT Athens, 24 th May,