Interruptions at connection points due to grid disturbances
|Countertrade between Finland and Sweden, €M||2.5||0.8||0.3||0.2|
|Countertrade between Finland and Estonia, €M||0.1||0.8||0.0||0.0|
|Countertrade between Finlands internal connections, €M||1.2||2.2||0.3||0.6|
|Total countertrade, €M
Our mission is to supply the electricity generated by power plants that are connected to the grid to our customers reliably and in a state of high quality. We continuously monitor the reliability of electricity transmission. As in the previous year, our transmission reliability rate remained at an excellent level during the year under review and was 99.999 (99.999) per cent. The importance of our electricity transmission reliability is illustrated by the fact that the cost of a nationwide major disturbance to customers and society at large would be in the region of EUR 100 million for each hour of outage.
During summer, the number of disturbances due to thunder exceeded the average, and the resulting multi-phase disturbances caused harm to the process industry. Otherwise the number of disturbances remained at the normal level. We allocated increased resources to determining the DC transmission links susceptibility to disturbances. DC transmission link failures declined slightly, and the time required for investigating the disturbances was substantially shortened. We raised the grids disturbance-clearing readiness a total of three times in 2016, mainly due to the prolonged cold period in January.
Countertrade costs totalled EUR 3.9 (3.8) million. Countertrade refers to special adjustments made to manage electricity transmission which are used to eliminate short-term bottlenecks i.e. areas where electricity transmission is congested from the grid. Fingrid guarantees the cross-border transmission it has confirmed by carrying out countertrades, i.e. purchasing and selling electricity, up until the end of the 24-hour usage period. The need for countertrade can arise from, for example, a power outage or disruption in a power plant or in the grid.
An outage in a connection point in the grid caused by a disturbance in Fingrids electricity network lasted an average of 1.4 (2.1) minutes, which is clearly shorter than the ten-year average. The estimated cost of the disturbances was EUR 3.1 (3.5) million.
Transmission outages in connection with investment projects mostly affected Ostrobothnia and northern Ostrobothnia. The outages were challenging and required careful advance planning and good cooperation with our customers. The outages were handled successfully.
Reserves required to maintain the power balance of the power system were procured from Finland, the other Nordic countries, Estonia and Russia. More reserves were sold to Sweden than in the previous years. The availability of reserves was mostly good, but challenging situations arose, for example, during floods, when hydro power plants could not be utilised as they normally can. The costs of reserves remained clearly below the budgeted level. New operators have entered the reserve procurement scene, and consumer participation in the reserve market has increased. Nordic grid companies continued using the automatic frequency control reserve to restore the deteriorated frequency quality. A maximum reserve of 300 megawatts, of which Fingrids share was up to 70 megawatts, was maintained for the selected hours.
The volume of transmission losses in the Finnish grid decreased from the previous year and was 1.3 (1.4) terawatt hours. This is 1.5 (1.6) per cent of the total volume of transmitted electricity. The decrease is attributable to declined electricity imports from Sweden compared to the previous year, and lower ITC volumes. The annual variation of losses is affected by the Nordic electricity production situation, such as sufficiency of hydropower.
Centralised electricity system
Decentralised electricity system
|Power system operation||2016||2015||2014|
|Electricity consumption in Finland, TWh||85.1||82.5||83.4|
|Fingrids transmission volume, TWh||68.6||67.9||67.1|
|Fingrid's loss power volume, TWh, G4-EU12||1.3||1.4||1.3|
|Electricity transmission Finland–Sweden|
|exports to Sweden, TWh||0.3||0.2||0.15|
|tImports from Sweden, TWh||15.7||17.8||18.1|
|Electricity transmission Finland–Estonia|
|exports to Estonia, TWh||3.1||5||3.6|
|imports from Sweden, TWh||0.7||0.05||0.05|
|Electricity transmission Finland–Russia|
|imports from Russia||5.9||3.9||3.4|
Key events of 2016
The balancing power price rose momentarily to a high level early in the year
The price of balancing power reached the level of €3,000/MWh for one hour on 22 January 2016. This the highest balancing power price ever in Finland. Colder-than-anticipated weather increased electricity consumption during the morning hours and substantially increased the need to balance the power system.
We take care of maintaining the balance between electricity consumption and production in Finland’s power system through balancing power and power system reserves. Electricity market operators participate in the balancing power market and can freely price their balancing power bids. During the balancing power price peak, all available market-based balancing power bids were utilised to balance the power system. However, a high balancing power price has no direct impact on the electricity bill of households. Those balance responsible parties whose power balance was out of balance during the hour in question must pay the higher price.
Power and District Heat Pool turned 60
The Power and District Heat Pool celebrated its 60th anniversary in spring 2016. The Power and District Heat Pool can be deemed to have been established on 12 April 1956, when the Power and District Heat Section (currently Power and District Heat Pool) held its first meeting. Its task is to guide and promote company-specific preparations and readiness plans for power supply, i.e. energy production, transmission and distribution. The Pool is a voluntary co-operation body of authorities and energy companies, whose role is to ensure the operational readiness of the nation’s power supply in normal circumstances, during serious disturbances and in exceptional circumstances. We play a significant role in the Power and District Heat Pool, as its president and secretary are from Fingrid.
The operational readiness of the Pool has been tested through various exercises during its existence. The VALVE (Valot verkkoon 2014) major disturbance exercise organised to test the nationwide restoration of electricity supply in the event of an outage covering the whole of Finland gained high visibility. For the exercise, the power was cut off momentarily in the city of Rovaniemi in autumn 2014. The exercise will be resumed in 2017, when the national JÄÄTYVÄ 2017 exercise will test contingency plans and co-operation in Northern Savo in the form of a fictional two-day drill. The set-up for the exercise is a widespread and long-lasting disturbance of the grid and distribution networks following a serious meteorological phenomenon.
Nordic Regional Security Coordinator (RSC) set up in Copenhagen
The organisation in charge of joint Nordic operational planning was set up in 2016 to further deepen Nordic TSO cooperation in the changing power system and operating environment. The organisation benefits the electricity market operators by optimising and maximising transmission capacities and helps identify operational situations that could potentially weaken system security in advance on the Nordic level. The organisation of transmission system operators’ regional operational planning will also become binding in the network codes and by the decision of ENTSO-E, which represents’ the EU’s transmission system operators responsible for transmission grids.
The joint organisation of Finnish, Swedish, Norwegian and Danish transmission system operators has five tasks: transmission capacity calculation, regional system security analyses, maintenance and development of joint grid models, co-ordination of cross-border transmission outages and regional short-term electricity sufficiency reviews. The RSC operates as a service provider. Each transmission system operator will be responsible for its system security and will continue to decide on operational measures in its own area.
The operations will start by the end of 2017 and employees from all Nordic Transmission system operators, a total of 10 persons, will work at the office. The number of Finnish employees will initially be two.
We released the new Fingrid Online mobile app
Our new mobile app Fingrid Online provides its users with real-time information about the state and the disturbances of the power system. The app has three functions: state of the power system, operational disturbances and disturbance reports.