Nordic Summary of the Winter 2019-2020

Nordic operations group

RGN Meeting 1 April 2020

1 PEAK LOAD 2019-2020 in the total Nordic area and in each country

Nordic Temperatures on Forecast peak load NORDIC AREA (10 year 28.02.2020 winter) hour 08-09 28.02.2020 (CET) Hour 08-09 (CET) -4 ̊C CONSUMPTION (C) 72 900* 62 432

PRODUCTION (P) 68 000 64 345

* 2% lower than sum of national peaks -17 ̊C -13 ̊C Nordic Forecast peak load National (10 year 28.02.2020 peak load during the winter) hour 08-09 winter 2019/2020 (CET) (CET)

-8,6 ̊C - 13 ̊C Finland

C 15 200 12 298 12 388 28.02.2020 hour 07-08 -10 C̊ P 12 000 9 759 9 849 Sweden - 6 ̊C C 27 500 23 100 23 200 10.12.2019 -8,7 ̊C -2 ̊C P 25 000 24 300 23 792 hour 17-18 Norway C 25 400 21 861 21 861 -3 ̊C 28.02.2020 hour 08-09 P 26 800 24 129 24 129 2 ̊C Denmark C 6 200 5 173 6 116 11.02.2020 0,5 ̊C hour 17-18 P 5 000 6 157 5 677 Data source: Nord Pool Spot or TSO

2 MEASURED FLOW AND DAY-AHEAD PRICES AT NORDIC PEAK LOAD ON 28.02.2020 Hour 08-09 (CET) [MWh/h] 0 Area Spot Price During Peak Hour (EUR) 34 DK1 43,88

DK2 53,01 206 1333 FI 58,92

NO1 11,76 86 PEAK LOAD 2015-2016 0 NO2 11,15 In the total Nordic area and in each countryPEAK LOAD 121 2015-2016 NO3 19,45 1130In the total Nordic area and in eachNO4 countryPEAK19,45LOAD 2015-2016 NO5 11,76

In the total Nordic area and in eachSE1 country 19,45 408 433 102 SE2 19,45 981 713 SE3 53,01 716 955 SE4 53,01 590 Data source: Nord Pool Spot 659 603 214 62 3 498 Nordic summary

• The winter was characterized by relatively warm weather. • In the peak load hours the Nordic area was an exporting area. • Output of wind power during Nordic peak hour was 6 589 MW (3 127MW in Denmark, 780 MW in Norway, 2 432 MW in Sweden, 250 MW in Finland)

NO SE FI DK Nordic Installed generation capacity, 2 926 9 034 2 150 6123 20 233 MW Wind power production during 780 2 432 250 3 127 6 589 Nordic peak hour, MWh

• The peak load reserve was not activated during the winter neither in Sweden nor in Finland. • Some strained days for operations with high regulation prices (up to 300 Euro/MWh) during February: 19 Feb – wind power production dropped with ~ 3000 MW in SE3 and SE4 during the morning. The decrease in wind power came down quicker than forecasted and caused, among other factors, overload on cut 2 (SE2->SE3). 20 Feb – Oskarshamn 3 tripped with 1000 MW and caused overload on cut 2 (SE2->SE3). Besides upregulation the counter trades south of SE2 were done on the HVDC cables. 26 Feb – Overload on cut 2 (SE2->SE3) due to low temperature which was worsened by regulation on Hasle (NO1->SE3) and low gas pressure on Fenno-Skan 2. Disturbance reserve was activated and counter trades were done in order to ease the overload. 4 MW

5 MW

6