DEPA LNG Terminal

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3rd ANNUAL CONFERENCE

PUBLIC GAS CORPORATION OF GREECE S.A.
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GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
CONTENTS 1/2

• DEPA Profile
• The National Gas Grid
• Main Characteristics of Gas Infrastructure
• Market Characteristics
• Transportation Tariffs
• DEPA Future Projects
• LNG Import Terminal
• The Role of the Terminal in the National Gas System
• Terminal Operation History

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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CONTENTS 2/2

• Capacity of the Terminal
• Main Process Units
• Simplified Process Flow Diagram
• The Construction of the LNG Tanks
• LNG Tank Section
• Send Out Gas Specifications
• Supervision Control and Safety Systems
• Future expansion of the LNG Terminal
• Main Characteristics of the LNG Vessel- Terminal Port Limitations
• Future Plan of LNG Transportation

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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DEPA PROFILE

• DEPA was founded in September 1988.
• First introduction of Gas in Greece: November 1996.
• Actual ownership of DEPA: Greek state 65%, Hellenic
Petroleum (ELPE) 35%.
• Future structure of DEPA: According to the draft of the new Gas Law
for the market opening there will be unbundled into 2 companies :
1. DEPA (Holding Company including Trading division).
2. DESFA (Transportation Division & LNG Terminal).
• DESFA will be 100% subsidiary of DEPA.
• DEPA will compete other potential suppliers.
• Expected turnover of DEPA at the end of 2005: 620 M€.
• 3 distribution companies EPA for 4 big cities in GREECE : Athens,
Thessaloniκi, Larissa, Volos (51% DEPA and 49% foreign investor).
License since 2001 for 30 years .

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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THE NATIONAL GAS GRID

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MAIN CHARACTERISTICS OF GAS INFRASTRUCTURE

The Greek Gas Transportation System includes:

• Main HP pipeline (70 bar): 512 km
• HP supply branches to the main regions: 440 km
• Border Metering Station to receive the Russian gas
• LNG Import Terminal to receive the LNG from Algeria
• 1 Gas Dispatching Control Center (GCC), 1 Back-up
Control Center (BCC) and 5 other Operating &
Maintenance Bases across the National Gas grid.
• SCADA System for telesupervising and control
• More than 25 M/R stations
• More than 2000 km of MP & LP distribution networks

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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MARKET CHARACTERISTICS

Own production : 0%
Imports : 100%
Consumer distribution
Power & Cogeneration: 72%
Industrial: 18%
Domestic & Commercial: 9%
CNG for vehicles: 1%
Annual growth rate between 2003 - 2004: 10%
Next decade annual growth rate forecast: 10%
Contribution to Greece's entire energy needs by 2010: 17%
Import points (2004):
1. Strymonohori (Gazexport)
2. Revithoussa LNG Terminal (Sonatrach)
3. Kypoi (future point: 0,75 bcm p.a. by BOTAS starting in 2007)

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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DEPA FUTURE PROJECTS

• Expansion of the LNG Import Terminal
• GTI pipeline with the associated Border M.S.
• IGI pipeline (multiple phases)
• Gas Compression Station near Thessaloniki
• Gas Supply to big consumers (power & cogeneration
plants)
• Expansion of the gas grid (HP & MP distribution) to
new areas near the existing transmission system
• Bus Gas Refilling Stations (Athens, Thessaloniki)

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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TARIFF

2006 TRANSPORTATION TARIFFS

Capacity Charge Tariff 620,06 €/MWh/day
Commodity Charge Tariff 0,307 €/MWh
Storage Fee no
Other associated with terminaling basic services no

Note: This tariff is actually under discusion with the Regulator.
The tariff applies to the whole transportation system including the LNG
Terminal (postage stamp charging).

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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L.N.G. Import Terminal - Revithoussa Island
Megara Bay – Attica – GREECE

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
LNG Terminal
Location

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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The Role of the Terminal
in the National Gas System

 STRATEGIC ROLE
The Terminal is the second gas supply source in the System in case
of loss of the first source (Russian gas).

 PEAK SHAVING ROLE
It covers the overall gas peak demand in a very fast response.

 ROLE FOR THE SECURITY OF THE SYSTEM
It maintains the minimum operating pressure in the System and
especially in the south section where the biggest consumers with
high required gas supply pressure (power plants) are located.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
TERMINAL OPERATION
HISTORY

 First LNG cargo unloaded on the
3/02/2000.
 First gas send out took place on
the 11/02/2000.
 Performance test (full gas send
out) was carried out between 3
and 6/05/2000.
 Hand over of the plant to DEPA
staff took place on the 6/11/2000.
 All gas is supplied from Algeria
until today.
 Contracted max. amount of gas
supply = 0,68 bcma or 0,45 mta.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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Capacity of the Terminal

 Unloading capacity:
3.500 m3 LNG / hour.
 Storage capacity:
2 tanks of 65.000 m3 LNG
useful volume.
 Send out capacity:
- 270 m3 LNG/hour or
1,4 bcma (S.M.S.R.).
- 407 m3 LNG/hour or
2,1 bcma (Peak with 1
vaporizer as spare).
- 533 m3 LNG/hour or
2,5 bcma (Full S.R.
without spare).

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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Main Process Units

 Reception and Unloading of all type of LNG
cargoes (with capacity from 25.000 m 3 LNG up
to 130.000 m3 LNG).

 LNG Storage and Boil Off Gas Recondensation.

 LNG Pumping in 2 stages (13 and 80 barg) and
Re-vaporization of LNG before sending out to
the National Gas Grid.

 Utilities, Detection, Protection and Fire
Fighting Systems.

 Fully automatic supervision and control
systems for the smooth operation and the
safety of the plant.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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Simplified Process Flow Diagram

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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The Construction of the LNG Tanks

 Two full full-containment type (double shell) tanks located in
purpose-made pits on the island hill.

 Inner container made of 9 % Nickel stainless steel.

 Outer container made of pre-stressed concrete.

 1m-thick insulation material between inner and outer
containers.

 Support by 212 seismic isolating absorbers.

These supports can absorb movements of the tank (in a
distance up to 30 cm) in any direction in case of an
earthquake with max. horizontal acceleration of a magnitude
of 0,5 g, (earthquake level SSE).

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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LNG Tank Section

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GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
Send Out Gas Specifications

 Pressure = 26 – 64 bar g.

 Temperature > 3,5 °C.

 All Boil off gas is re-condensed in order to be sent
out. Possibility to use Boil-off gas as fuel gas.

 No odorization is required for the send out gas.

 No High Heating Value or Wobbe Index adjustment
is required.

 Two types of LNG Vaporizers exist:
1. Open Rack (main equipment).
2. Submerged Combustion (stand-by or for peak).

Note: The sent out gas (vaporized LNG) is mixed
with the Russian gas in the Gas Control Center
before being supplied to the final consumers.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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Supervision, Control and Safety Systems

Distribution Control System (DCS)
Emergency Shut Down System (ESD) (4 levels)
Fire Gas Spill System (FGS)
- Fire Detection Panel
- Fire Protection Panel
Power Control System (PCS)
Earthquake Monitor System (2 levels)
- Operating Basis Earthquake (OBE)
- Safe Shut down Earthquake (SSE)
Civil Monitoring System (CMS)
Docking System
Mooring Hooks System
Intrusion System

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05 20
FUTURE EXPANSION OF THE
LNG TERMINAL
 LNG Unloading rate increase to 7.250
m3 LNG/hour.

 Sustained Maximum Sendout LNG rate
1.000 m3 LNG/hour or 5 bcma. (with
spare).

 LNG vaporization capacity = 1.250 m3
LNG/hour. (Peak without spare).

 Small cogeneration plant for the
power and thermal needs (hot water)
of the Terminal.

 Provisions for future construction of
the 3rd tank and of a power plant of 400
MW.

 Utilities capacity increase for the need
of the process requirements.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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MAIN CHARACTERISTICS OF THE LNG
Vessel-LNG Terminal restrictions 1/3

 The LNG annual quantities to be transported from
Algeria to Revithoussa Terminal = 0,51 bcm
(870.000m3) min and 0,68 bcm (1.170.000m3) max.
 DEPA chartered the LNG vessel CENTURY with a
time charter agreement till June 2007.
 Century (year 1974) Main Characteristics:
 Loa = 181,55 m, B = 29,00m, T = 8,34m, cargo tank
capacity = 29.500m3,service speed = 16 knots.
 Containment system = Independent type B
(aluminum - spherical shape).
 Main engine = diesel (16.800 Kw max).

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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MAIN CHARACTERISTICS OF THE LNG
Vessel-LNG Terminal restrictions 2/3

 LNG Operation data for CENTURY:
 Economical speed = 12 - 13 knots
 Round Trip (Skikda) = 8 days
 Round Trip (Arzew) = 10 days
 Annual voyages for Skikda = 350 / 8 = 43,
Arzew = 350 / 10 = 35
 Annual transportation Capacity = 28350 x 43 =
1.219.000m3 (Sk), 992.000 m3 (Az).
 The LNG take-off program of DEPA for 2005 is
31 cargoes and for 2006 is 36 cargoes.

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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MAIN CHARACTERISTICS OF THE LNG
Vessel-LNG Terminal restrictions 3/3

 LNG Terminal Restrictions-Jetty equipment:
 Approach and berth LNG vessels from 25.000 m3
capacity up to 130.000 m3
 Minimum water depth at berth = 13,6 m
 Maximum vessel’s length overall = 310 m
 Maximum vessel’s draft = 11,80 m
 The jetty is equipped with six fenders (four small -
two large) of 15 t/m2 max hull pressure.
 Mooring lines with four units on berth (2 x 60 tons
quick release hooks with capstan) and six units on
shore (3 x 100 tons quick release hooks with
capstan).
GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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FUTURE PLANS FOR THE LNG
TRANSPORTATION 1/2
 The time charter agreement for the LNG Century
terminates in June 2007 and DEPA estimates that
until the end of this period there is no need for a
bigger vessel.
 A new business Plan is under preparation taking
into consideration the new gas law (energy
market liberalisation) and unbundling of the
Company.
 Scenarios for the short period of July 2007 - July
2011(2008 - 2012):
1. Extend the existing time charter (same LNG
annual demand)
2. Charter two small vessels (annual LNG demand
>0,68 bcm) or
3. Charter one LNG vessel of medium size.
GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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FUTURE PLANS FOR THE LNG
TRANSPORTATION 2/2

 Scenarios for the long period (after 2012):
1. Build a new LNG vessel
2. Buy an existing LNG vessel
3. Charter for long period a LNG vessel

 A medium size LNG vessel of 65.000 - 75.000 m3
capacity is probably the most convenient for a
high seasonal demand and annual > 0,8 bcm
(Internal study).

GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05
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•Plant Tour
•Thank you !

V. Triantafyllidis
•GAS TRANSPORTATION CONTRACTS MANAGER
•TEL. +30 210 6793686
•E-mail: v.triantafyllidis@depa.gr
GIE 3rd Annual Conference – DEPA Gas Supply Dpt – Revithoussa 3.11.05 27