Baltic Energy Market Interconnection Plan GRIP 2017

4.8 Sweden

4.8.1 GAS TRANSMISSION AND

DISTRIBUTION NETWORK DEVELOPMENT The construction of the Swedish transmission grid began in 1985. Three years later the grid reached Gothenburg. In 2004, the latest major expansion was made which led to today’s transmission grid. The transmission grid consists of 601 km pipelines, 41 measuring and regulator stations and six gas metering stations located in south-western Sweden. The grid is connected to about 26,000 km of distribution grids. The system has a pipeline interconnection with the Danish gas system with a maximum cross border capacity of 88GWh/day. This pipeline interconnects Dragør in Denmark with Klagshamn, Sweden. Due to Swedish legislation the gas is odourised on the Swedish side by add- ing a special chemical in Klagshamn. The transmission system is connected to an UGS, Skallen storage facility. This rock cavern storage facility, characterised by high input and withdrawal capacity, has a capacity of 10 mcm and can handle pressure in excess of 200 bar. The size of the storage does not allow seasonal storage but is limited to peak-shaving services. Sweden has a vulnerable supply position due to the single cross-border point in the gas system. This weakness has been mitigated primarily by the Ellund project (increasing capacity between Germany and Denmark). The upcoming LNG terminal in Gothenburg and increasing biogas production will also strengthen the supply position.

STOCKHOLM

Rafnes

Øra LNG (Fredrikstad)

Brunnsviksholmen (Nynäshamn)

S W E D E N

Lysekil

S k a g e r r a k

Stenungsund

Vallby Kile

JönKöping

Göteborg

Göteborg LNG

K a t t e g a t

Gnosjö

Gislaved

Aalborg

Varberg

S W E D E N

Skallen

Halmstad

D E N M A R K

Oslo

Stockholm

NOR D S T R E A M

COPENHAGEN

Malmö

Stenlille

B a l t i c S e a

NORD STREAM

Copenhagen

B a l t i c S e a

Avedore Dragør

Trelleborg

Figure 4.14: Natural gas transmission system

92 |

BEMIP Gas Regional Investment Plan 2017