Hellenic Power System 1

The Electric Power System

- Greece -

Hellenic Power System 2

Basic facts

• Area: 131 957 km2

• Population: 10 815 197 (2012)

• Number of electricity consumers: 7 392 722 (2013)

• Number of TSOs: 1

• Number of DSOs: 1

• Peak load: 10 610 MW(2007)

• Average interruption of electricity: 21.4 min (2013)

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Hellenic Power System 3

Global map of the gridand of its interconnections

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Interconnectors with:

Turkey

Bulgaria

F.Y.R.O.M.

Albania

Italy

Hellenic Power System 4

Grid facts and characteristics

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Voltage Level Total length(approx.)

Responsibility

Transmission Grid 400kV 2 785 km TSO

High Voltage 150kV 8 393 km TSO

High Voltage 66kV 54 km TSO

Medium Voltage 0,4 kV to 20 kV 109 700 km DSO

Low Voltage 220 V - 240 V 123 300 km DSO

Hellenic Power System 5

Structure of electricalpower system

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POWER

PLANTS

TSO

DSO

END USERS

400 kV

150 kV

20 kV

0.2 kV

Hellenic Power System 6

Map of the interconnected high voltage grid

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400 kV

150 kV

Hellenic Power System 7

Information on TSO

• Name: Independent Power Transmission Operator (IPTO or ADMIE)

• Network length 11 232 (km)

• Served area 115 000 (km²)

• Annual transmitted energy 50.415 (TWh) (2014)

• website: http://www.admie.gr

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Hellenic Power System 8

Cooperation of TSO and DSOs

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Load~

Dispersed Generation

Hellenic Power System 9

Responsibilities of TSO

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Responsibilities of DSO

• System development, market rules implementation,

dispatching and monitoring the overall system

• Responsibility for Security of Supply

• Operative contact to DSO

• Requests support by the DSO

• Monitoring own system

• Operative contact to generators on DSO-Level

• Support of TSO to operate the cascade

Hellenic Power System 10

Power structure

of the country

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Hellenic Power System 11

RES Installed capacity and energy production

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2013

Hellenic Power System 12

Conventional Installed Capacity and Energy production

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(As of 2013)

Hellenic Power System 13

Development of generation sources since 2004

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LARGE HYDRO

S…RES2%

N.GAS15%OIL

5%LIGNITE

63%

IMP-EXP5%

2004LARGE

HYDROS10%

RES2%

N.GAS15%

OIL6%

LIGNITE60%

IMP-EXP7%

2005 LARGE HYDROS

11%RES3%

N.GAS19%

OIL6%

LIGNITE53%

IMP-EXP8%

2006

LARGE HYDRO

S5%

RES3%

N.GAS23%

OIL6%

LIGNITE55%

IMP-EXP8%

2007 LARGE HYDROS

5%RES4%

N.GAS23%

OIL6%LIGNITE

52%

IMP-EXP10%

2008LARGE

HYDROS9%

RES6%

N.GAS17%

OIL3%

LIGNITE57%

IMP-EXP8%

2009

LARGE HYDRO

S13%

RES6%

N.GAS19%OIL

0%LIGNITE

51%

IMP-EXP11%

2010 LARGE HYDRO

S7%

RES7%

N.GAS28%OIL

0%

LIGNITE52%

IMP-EXP6%

2011 LARGE HYDROS

7%RES11%

N.GAS27%OIL

0%

LIGNITE52%

IMP-EXP3%

2012

LARGE HYDROS

11%RES15%

N.GAS24%

OIL0%

LIGNITE46%

IMP-EXP4%

2013LARGE

HYDROS8%RES

17%N.GAS

13%OIL0%

LIGNITE45%

IMP-EXP17%

2014

Hellenic Power System 14

Consuption per customer group

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Hellenic Power System 15

Development of wind power

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0

200

400

600

800

1000

1200

1400

1600

1800

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

INS

TA

LL

ED

CA

PA

CIT

Y (

MW

)

ΜONTH(From JANUARY 2004 till DECEMBER 2014)

WIND FARMS IN THE INTERCONNECTED SYSTEM

Hellenic Power System 16

PV excl. rooftop

Development of photovoltaic power

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0,00

500,00

1 000,00

1 500,00

2 000,00

2 500,00

3 000,00Jan

-11

Fe

b-1

1

Ma

r-11

Ap

r-11

Ma

y-1

1

Jun

-11

Jul-1

1

Au

g-1

1

Se

p-1

1

Oct-

11

Nov-1

1

Dec-1

1

Jan

-12

Fe

b-1

2

Ma

r-12

Ap

r-12

Ma

y-1

2

Jun

-12

Jul-1

2

Au

g-1

2

Se

p-1

2

Oct-

12

Nov-1

2

Dec-1

2

Jan

-13

Fe

b-1

3

Ma

r-13

Ap

r-13

Ma

y-1

3

Jun

-13

Jul-1

3

Au

g-1

3

Se

p-1

3

Oct-

13

Nov-1

3

Dec-1

3

Jan

-14

Fe

b-1

4

Ma

r-14

Ap

r-14

Ma

y-1

4

Jun

-14

Jul-1

4

Au

g-1

4

Se

p-1

4

Oct-

14

Nov-1

4

Dec-1

4

Hellenic Power System 17

RES installed capacity and aggregatedRES production since 2004

17

0

1 000 000

2 000 000

3 000 000

4 000 000

5 000 000

6 000 000

7 000 000

8 000 000

9 000 000

0

500

1000

1500

2000

2500

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

(MW

h)

(MW

)

YEAR

RES CAPACITY

WF Sm.Hydro B.M/G CHP PV PV Roof GENERATION

Hellenic Power System 18

Price development for households and industry consumers

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Hellenic Power System 19

Electricity market organisation

Hellenic Power System 20

Power balance in 2014

• Generation (TWh): 41.6

• Consumption (TWh): 50.4

• Imports (TWh): 9.9

• Exports (TWh): 1.1

In Consumption value are included Losses of 1.2 TWh. Power balance values refer to transmission system.

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Hellenic Power System 21

Energy exchanges • Commercial flows (TWh)

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3.850.43

0.21 1.852.09

1.42

0.06

0.040.002

0.74

Hellenic Power System 22

Energy exchanges• Physical flows 2014 (TWh)

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3.481.91

0.11 0.12.63

1.32

0.51

0.020.00

0.0

Hellenic Power System 23

Specific aspects of the electricity market

• The Hellenic Electricity Market Model is a “physical market” based on a “day-ahead mandatory pool” with simultaneous co-optimization of the energy and reserves (primary and secondary) while respecting the constraints of transmission system and generation.

• There is no balancing market and in order to operate the day ahead scheduling (DAS), the generators submit offers for the entire available capacity of each power unit and the suppliers submit offers for the consumers’ load that they represent in the market. The transmission congestion in the North to South corridor is reflected in the market model with a split in two operational market zones in cases of violation of certain power flow limits in this corridor.

• RES are currently remunerated with feed–in tariffs.

• Transmission rights on interconnections with other TSOs are currently allocated with Auctions.

• Capacity Assurance provisions existed also in the market model.

• The day-ahead market is operated and Settled by LAGIE (the Market Operator in Greece).

• IPTO (the TSO in GREECE) is responsible for the Dispatch Schedule (day ahead and intraday), the real time operation and the ex-post calculations and the Settlement of imbalances.

• It is foreseen to implement a new market structure in the near future in order to comply with the European Target Model.

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