Nordkraft grid

TRANSMISSION CONTROL ยท 420 KV NETWORK

1 constraint 50.012 Hz

Network topology

line width and colour are loading
Transmission network with nine substations and ten lines Aurland to Oslo Nord is the most heavily loaded line at 94 percent, followed by Fardal to Aurland at 88 percent and Rjukan to Skien at 83 percent. Generation sits at Kvinnherad, Aurland and Rjukan; load at Oslo Nord, Drammen and Skien. Kvinnherad to Fardal, 72 percent loaded Kvinnherad to Sogndal, 55 percent loaded Fardal to Aurland, 88 percent loaded Sogndal to Hallingdal, 61 percent loaded Aurland to Oslo Nord, 94 percent loaded Hallingdal to Oslo Nord, 47 percent loaded Hallingdal to Drammen, 76 percent loaded Rjukan to Drammen, 58 percent loaded Rjukan to Skien, 83 percent loaded Drammen to Skien, 34 percent loaded 72% 55% 88% 61% 94% 47% 76% 58% 83% 34% Kvinnherad Fardal Sogndal Aurland Hallingdal Oslo Nord Drammen Rjukan Skien

Generation Load Substation Line above 85%

System frequency

60 seconds

50.012 Hz

Deviation
+12 mHz
ROCOF
0.004 Hz/s
Reserve
1,240 MW

Generation mix

now
Hydro62%
Wind21%
Thermal11%
Import6%

Constraints

1 active
Transmission constraints with loading and remedial action
LineLoadingLimitAction
Aurland - Oslo Nord94%1,380 MW Redispatch
Fardal - Aurland88%1,180 MW Watch
Rjukan - Skien83%960 MW Watch
Hallingdal - Drammen76%1,040 MW Normal

Balancing

next settlement period
Area price
41.20 EUR/MWh
Import
620 MW
Export
1,180 MW
Hydro reservoir
74.2%
Wind forecast 6h
2,410 MW
Demand forecast
18,900 MW

Redispatch of 180 MW from Rjukan to Kvinnherad clears the Aurland constraint at a cost of 7,400 EUR for the period.