Evolving grid Fenno-Skan 2 HVDC link - Fingrid
Evolving grid Fenno-Skan 2 HVDC link - Fingrid
Evolving grid Fenno-Skan 2 HVDC link - Fingrid
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Fenno</strong>-<strong>Skan</strong> 2 interconnector<br />
promotes the electricity market<br />
Electricity market in the Baltic Sea region<br />
2<br />
Structure of the subsea cable<br />
The loading of the cable onto<br />
the vessel at Nexans’ factory in<br />
Halden, Norway, took 10 days.<br />
1. Conductor<br />
2. Conductor screen<br />
3. Insulation<br />
4. Insulation screen<br />
5. Fabric tape<br />
6. Lead alloy sheath<br />
7. Polyethylene sheath<br />
8. Bedding tape<br />
9. Reinforcement<br />
10. Bedding tape<br />
11. Armour<br />
12. Bedding tape<br />
13. Armour<br />
14. Outer serving<br />
Good functioning of the electricity market requires<br />
that there are sufficient electricity transmission<br />
facilities between countries. Electricity transmission<br />
congestions create separate price areas, which<br />
disturb the electricity market.<br />
The Nordic electricity market is part of the region<br />
of the Baltic Sea in the European electricity market.<br />
Each part of this electricity market, the largest<br />
market area in the world, carries far-reaching<br />
significance.<br />
The Nordic transmission system operators have<br />
endeavoured to jointly intensify the electricity market<br />
mechanisms. To this end, they have specified<br />
the foremost congestions in Nordic Käytössä electricity transmission.<br />
These congestions are to be<br />
Rakenteilla<br />
removed so as<br />
to promote the electricity market and transmission<br />
system security. <strong>Fenno</strong>-<strong>Skan</strong> 2 has been one of the<br />
most important new transmission <strong>link</strong>s required.<br />
More than 50 years of<br />
Nordic co-operation<br />
The transmission 14.6.2011 <strong>grid</strong>s in Finland Tekijä and Sweden<br />
were interconnected for the first time at the end<br />
of the 1950s. Two 400 kilovolt alternating current<br />
connections were constructed from Northern<br />
Finland to Sweden in the 1970s.<br />
The first submarine cable connection between<br />
Finland and Sweden, the 500 megawatt highvoltage<br />
direct current (<strong>HVDC</strong>) <strong>link</strong> <strong>Fenno</strong>-<strong>Skan</strong><br />
1, was brought into commercial operation in<br />
December 1989. The cable laid in the Gulf of<br />
Bothnia was the longest submarine cable interconnection<br />
in the world at that time, also having<br />
the highest voltage and capacity.<br />
After the liberalisation of the electricity market,<br />
solid interconnections have enabled a rapid<br />
shift-over to the well-functioning Nordic electricity<br />
market. The full capacity of the <strong>Fenno</strong>-<strong>Skan</strong><br />
1 <strong>link</strong> has been in use as a result of increased<br />
electricity use.<br />
1000<br />
2100<br />
600<br />
2150<br />
700<br />
1000 740<br />
700<br />
680 1700<br />
700<br />
1300<br />
600<br />
950<br />
600<br />
500<br />
1500 600<br />
600<br />
800<br />
550<br />
700<br />
1100<br />
800<br />
Transmission Siirtokapasiteetit capacities (MW) (MW)<br />
in operation<br />
under construction<br />
100<br />
350<br />
100<br />
1500<br />
100<br />
1400<br />
650<br />
850 1000<br />
750<br />
50<br />
60<br />
3
Change language