Global organisation
The Grid Code Specifications for Grid Energy Storage Systems are determined according to Table 3.1, and as a rule, they are not dependent on the rated capacities or specifications of other production or demand systems connected to the same connection point.
Grid energy storage system: A unit or an economic ensemble of units capable of storing electricity, which is connected to the network through power electronics, and which also has a single connection point to a transmission system, distribution system, closed distribution system, HVDC system or a real property’s electricity network.
The grid energy storage system owner shall inform Fingrid and the relevant network operator of the contact information of the operator responsible for the operation of the grid energy storage system, no later than when the grid energy storage system begins to supply active power to Finland’s power system.
The test can be performed by gradually increasing the active power of the grid energy storage system to its maximum in demand mode and, afterwards, gradually increasing the active power of the grid energy storage system to its maximum in production mode. Once complete, the test shall be repeated in the opposite order.
Grid energy storage system owner: A party whose grid energy storage system is connected to the power system or the owner of a property to which a grid energy storage system is connected. Connection point: Ownership limit as specified in the connection agreement.
If the grid energy storage system owner requests a derogation when the grid energy storage system is to be connected to the network of a third party, Fingrid shall hear the relevant network operator when Fingrid makes the decision. Real-time measurements are not required for type A grid energy storage systems.
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