How is central control defined?
Central control is defined in Appendix 3 of the BSP Agreement – FCR Terms and Conditions.
Central control refers to resources that, in the operational phase, are dependent on a central function for activation, for example central frequency measurement and central setpoint calculation. Resources that are not dependent on a central function are considered to be locally controlled.
A resource can be considered locally controlled even if it uses a central function before the operating phase, such as for scheduling. This presupposes that any central signals are sent in good time before the delivery period and that the provider has the opportunity to verify that the signal has been received by the resource.
In order for a resource to be considered locally controlled despite the fact that central functions are used in the planning phase, it must be possible to notify Svenska kraftnät before the start of the delivery period should these central functions fail.
More information about IT-security requirements for centrally controlled FCR can be found here: IT-säkerhetskrav för central styrning av FCR (.pdf) Opens in a new window (in Swedish)