The procurement prognosis for Fast Frequency Reserve (FFR) (MW). Fingrid procures FFR based on the procurement prognosis. The prognosis is updated once a day, typically at 11:00 (EET).
The Fast Frequency Reserve (FFR) is procured to handle low-inertia situations. The needed volume of Fast Frequency Reserve depends on the amount of inertia in the power system and the size of the reference incident.