ENTSOG GRIP BEMIP 2014-2023 / Main Report

F i n l a n d

Narva

DN 500

BALTIC CONNECTO

DN 350/400

D N 2 0 0

TALLINN

Paldiski

E S T O N I A GAS TRANSMISSIO SYSTEM

D N 5 0 0

Pärnu

Karksi

Pskov

55

102

Värska

G u l f o f R i g a

Misso

Izborsk

N O RD STREAM

91

DN 700

Korneti

DN 700

DN 700

R U S S I A

L AT V I A

Inčukalns UGS

RĪGA lecava

DN 700

DN 350

Rēzekne

DN 500

DN 500

Liepāja

DN 500

DN 500 56

DN 400

Kieménai

Daugavpils

Śiauliai

Klaipeda

Klaipeda

Visaginas

DN 400 Figure 2.15: Gas transmission network, Latvia

DN 500

Jurbarkas

DN 700

DN 700/350

Kaunas

Jauniunai

57

DN 700/500

Šakiai

Kotlovka

YA M A L

92

VILNIUS The first gas transmission pipeline to Latvia was built in 1962, followed by the two next pipelines in 1966 and 1967. In general, almost 25% of pipelines are older than 40 years.

Kaliningrad

MINSK

Year of putting into operation Length (km)

Conventional diameter (mm)

Operating pressure (bar)

Gas pipeline

Age (years)

B E L A R U S 500 25

GI P L

P O L A N D

Vilnius – Riga

1962

42.33

52

Tietierowka

Riga – Panevezys

1983

84.03

700

40

31

93

Iecava – Liepaja

1966

209.64

500 / 350

25

48

Pskov – Riga

1972

160.63

700

47

42

Izborsk – Inčukalns UGS

1984

162.51

700

47

30

Riga – Inčukalns UGS I

1967

41.75

700

40

47

Riga – Inčukalns UGS II

1978

41.74

700

40

36

Riga – Daugavpils

1988

203.00

500

25

26

Vireši – Tallinn

1994

88.00

700

45

20

Upmala – Preiļi – Rezekne

2001 / 2005

66.71

400 / 350

54

13 / 9

Branch lines

139.66

Total

1,240.00

Table 2.6: Description of the gas transmission system, Latvia

In order to assess conditions of pipelines already in 1999 JSC Giprospecgaz ana- lysed gas supply system in Latvia and elaborated the Action plan for gas supply system development till 2010 and concept till 2030, which was updated by the same company in 2008. The gas transmission network of Latvia was studied, and particular measures were proposed for increase of gas supply safety. Based on these studies program for inspection of pipelines and repair of discovered defects was elaborated. At present, 98% of the whole transmission network in Latvia is inspected and it is planned to finish inspection and repair of the defects discovered by the inspection by the end of 2014.

28 |

Baltic Energy Market Interconnection Plan GRIP 2014–2023