The Greek National Natural Gas System: The existing infrastructure and its planned expansions

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1 The Greek National Natural Gas System: The existing infrastructure and its planned expansions Regional Meeting of the Working Groups on Electricity and Natural Gas March 2012, Sofia, Bulgaria Dimitrios Sarris Gas Flow Management Dept. Manager

2 AGENDA 1. Company Presentation 2. The existing infrastructure of the Greek NNGS 3. The planned expansions of the Greek NNGS

3 1. Company Presentation DESFA is the Greek Gas TSO (Transmission System Operator) Objectives Transmission and storage of Natural Gas LNG gasification Operation, maintenance and extensions construction of the Greek National Natural Gas System (NNGS)

4 1. Company Presentation History 1988 Foundation of DEPA (mother company) 1996 Import & distribution of Russian NG in the Greek market 2000 Import & distribution of Algerian NG in the Greek market 2007 Legal Unbundling into new DEPA and DESFA 2007 Import & distribution of Turkish NG in the Greek market 2010 Establishment of the Network Code

5 1. Company Presentation Estimation for Gas Transmission Volumes (bcm)

6 2. Existing Infrastructure Transmission pipeline: 1200km Three entry points 36 exit points One LNG Terminal Five O&M Centers 42 M/R Stations Two Dispatching Canters RCC System

7 2. Existing Infrastructure SIDIROKASTRO Main entry points and capacities KIPI Max tech. capacity 662,000 Νm 3 /h 5.8 bcm/year Max tech. capacity 856,164 Νm 3 /h 7.5 bcm/year AG. TRIADA (LNG) Max tech. capacity 519,554 Νm 3 /h 4.6 bcm/year After upgrade: 7.1 bcm/year (2014)

8 2. Existing Infrastructure Revithoussa LNG Terminal Unloading capacity: 7,250 m 3 LNG/h Storage capacity: 2 underground tanks of 65,000 m 3 LNG useful volume each Average LNG storage temperature: -160 o C Send-out capacity: up to 1,000 m 3 LNG/h LNG vessels of capacity from 25,000 m 3 up to 140,000 m 3 Small cogeneration plant for the power and thermal needs (hot water) of the Terminal

9 2. Existing Infrastructure The current role of LNG in the Greek gas market maintains the minimum operating pressure in the System can cover peak gas demand strategic provides an alternative supply source peak shaving security of supply It is an entry point for new entrants to the Greek gas market future commercial role, South East Europe, New entrant gate

10 2. Existing Infrastructure Metering and Regulating Stations Reduction and regulation of the downstream pressure Measurement of the energy quantity transferred to the medium pressure networks or to directly connected customers Addition of distinctive odour to the NG for prompt detection of any gas leakage Equipped with: Regulating valves Modern metering systems Modern automation, remote control, invoicing and telecommunication systems

11 2. Existing Infrastructure Scraper station Line Valve Station For the cleaning and the internal inspection of the pipelines For the selective isolation of pipeline segments

12 Dispatching Centers 2. Existing Infrastructure Continuous supervision of the NNGS via the SCADA system Adherence to the NG receipt and delivery schedules in accordance with the users nominations Optimization of the NNGS operation by using on-line simulation platform Prompt warning and guidance of the maintenance personnel Support and coordination of the maintenance personnel and the Authorities in emergency cases

13 DESFA Investment Plan (1) 3. Planned Expansions

14 DESFA Investment Plan (2) NNGS Main Projects under Construction High Pressure Branch Line to Aliveri (under construction) Compressor Station in Nea Mesymbria (under final stage of construction) High Pressure Branch to Megalopolis (at the start of construction) 3. Planned Expansions 74 million 61 million 130 million TOTAL 265 million

15 DESFA Investment Plan (3) Planned Main Projects of NNGS 2 nd Expansion of Revithoussa Receiving Terminal (included in the Development PLAN / International Invitation to Bid) Greek Part of South Stream (Feasibility phase and preliminary environmental examination completed) Komotini Thesprotia High Pressure Branch Line (included in the Development PLAN / Basic Design Phase) Receiving Terminal in Crete Island (Feasibility study phase) Underground Storage SOUTH KAVALA (The concession of underground reservoir under examination) Upgrade (Second Phase) of Sidirokastro BMS (Conceptual Design completed) 3. Planned Expansions 159 million 640 million (onshore) 840 million (offshore) 900 million 470 million 300 million 5 million

16 High Pressure Branch Line to Aliveri 3. Planned Expansions 20 inches pipeline length: 72 Km (offshore section of 14 Km is included) Five (5) underground line valve and scrapper stations One (1) aboveground Metering Station PPC Aliveri (installed power 400 MW) Completion at the second half of 2012.

17 3. Planned Expansions Compressor Station in Nea Mesymbria Two compressor units of 7.7 MW each Increase of the NNGS hydraulic stability Increase firm capacities of SIDIROKASTRO to 12 million Nm 3 /day KIPI to 5.16 million Nm 3 /day Completion at the second half of 2012.

18 3. Planned Expansions High Pressure Branch Line to Megalopolis 30 & 24 inches pipeline length: 159 Km Expansion of NNGS in the Peloponnese Supply general industrial/urban areas along the routing Supply new power generation units of 850 ΜW constructed in Megalopolis Completion in 2013

19 2 nd Expansion of Revithoussa Receiving Terminal Increase of storage space (from 130,000 m 3 to 225,000 m 3 ) Upgrade of marine to accommodate larger vessels (from 140,000 m 3 to 180,000 m 3 ) Increase of send-out rate in normal operating conditions from 1,000 m 3 LNG/h to 1,400 m 3 LNG/h Upgrade of Ag. Triada Metering Station (Ag. Triada Entry Point) an obvious complement to the upgrade of the gasification rate Completion at the end of Planned Expansions

20 3. Planned Expansions The potential role of Revithoussa in the markets of South East Europe The design capacity of the existing Transmission System is estimated between 6 and 7 bcma (equal to forecast demand by 2020) It is, therefore, evident that: There is sufficient spare capacity for the current market levels The capacity of the LNG terminal is large compared to the overall capacity of the system and the size of the Greek market, probably even for the longer term This spare capacity could be exploited to supply gas to SEE or even EU through backhaul flows (South/North) and swaps with the transit pipelines in the wider region Gas moving to many directions

21 3. Planned Expansions Upgrade (Second Phase) of Sidirokastro BMS Replacement of the Station s existing orifice meters with new multi-path Ultrasonic Meters Remote, locally unmanned, operation of the Station from the DESFA s Dispatching Centre Upgrade of the Station s Auxiliary and Utility Systems Capability of operating in reverse pipeline gas flow towards Bulgaria while retaining the gas flow direction within the Station Completion at the end of 2013

22 Conclusions 3. Planned Expansions The completion of ITG which is operational since 2007 has contributed in the reinforcement of the strategic position of the country. DESFA, by promoting the implementation of major energy infrastructure (ITGI, TAP, SOUTH STREAM, IGB) establishes the country as an natural gas hub in the SE Europe. The Revithoussa LNG terminal is crucial in safeguarding security of supply, both in national and regional level. Managing one of the receiving Liquefied Natural Gas terminals operating today throughout the Mediterranean and Europe, DESFA makes the difference in the Southeastern European security of supply.

23 tel: Thank you!