Nord Pool Spot has received the following message from Statnett:
According to provisions for system responsibility in the power system (FoS), Statnett shall define Elspot/Elbas areas (§5) as part of managing:
• Major and long-term operational congestions occurring in the regional and central grid system
• Foreseen energy deficit situations in defined geographical areas.
On Monday 5 September 2011, when the new 300 kV line between Sauda and Saurdal in the north Ryfylke area is put in operation, a change in the Norwegian Elspot/Elbas area definitions will take place. This line will strengthen the current NO2-NO5 corridor, though congestions and potential energy deficit situations are expected to remain for the Bergen area and the county of Sogn&Fjordane.
Accordingly NO5 continues as a bidding area, but with the interface between NO2 and NO5 moved north to the line between Mauranger and Samnanger, in the southern part of the Hardanger region. Other Elspot/Elbas area interfaces are not affected.
The five Norwegian Elspot/Elbas areas are from 5 September 2011 defined by:
A southwestern Norway Elspot/Elbas area (NO2) limited by the
300 kV line Mauranger-Samnanger
420 kV line Rød-Hasle
420 kV line Rjukan-Sylling
300 kV line Vemork-Flesaker
300 kV line Tokke-Flesaker
300 kV line Hof-Flesaker
132 kV line Grønnvollfoss-Skollenborg
132 kV line Hof-Skollenborg
22 kV line Stanavegen-Fresvik
where the first mentioned nodes are located in the southwestern area (NO2).
A southeastern Norway Elspot/Elbas area (NO1) limited by the
420 kV line Rød-Hasle
420 kV line Rjukan-Sylling
300 kV line Vemork-Flesaker
300 kV line Tokke-Flesaker
300 kV line Hof-Flesaker
132 kV line Grønnvollfoss-Skollenborg
132 kV line Hof-Skollenborg
300 kV line Fardal-Aurland
300 kV line Vågåmo-Øvre Vinstra
66 kV line Klyve-Sima
132 kV single busbar at Litjfossen
where the second mentioned nodes are located in the southeastern area (NO1).
A western Norway Elspot/Elbas area (NO5) limited by the
132 kV double busbar at Åskåra, with one busbar in each area (NO5 and NO3)
300 kV line Samnanger-Mauranger
300 kV line Fardal-Aurland
66kV line Klyve-Sima
22kV line Fresvik-Stanavegen
where the first mentioned nodes are located in the western area (NO5).
A middle Norway Elspot/Elbas area (NO3) limited by the
300 kV line Vågåmo-Øvre Vinstra
132 kV single busbar at Litjfossen
132 kV double busbar at Åskåra, with one busbar in each area (NO5 and NO3)
300 kV line Verdal-Tunnsjødal
300 kV line Namsos-Tunnsjødal
where the first mentioned nodes are located in the area in middle Norway (NO3).
A northern Norway Elspot/Elbas area (NO4) north of NO3.
Statnett will emphasize that the divisions between the areas are referring to electrical nodes in the transmission system and are not to be understood as a geographical division.
This area definition will remain until further notice.
Information on production, consumption and hydrology will be released before the adjustment takes place.
Lysaker, 23 May 2011 15:00 CET
For further information, please contact Statnett:
For questions regarding system operation:
Idar Gimmestad, Department manager, National Control center, phone + 47 23 90 32 89
Lars Voldhaug, Senior engineer, National Control center, phone + 47 23 90 34 38
For questions regarding balance settlement:
Morten Torgalsbøen, adviser, phone + 47 23 90 34 92