Article 127 Frequency quality defining and target parameters

the nominal frequency F1...;

the standard frequency range ...;

the maximum instantaneous frequency deviation ...;

the maximum steady-state frequency deviation ...;

the time to restore frequency ...;

the time to recover frequency F2...;

the frequency restoration range F3...;

the frequency recovery range F4...; and

the alert state trigger time F5....

time to restore frequency;

the alert state trigger time; and

the maximum number of minutes outside the standard frequency range.

the proposed modification of the frequency quality defining parameters in Table 1 of Annex III or the frequency quality target parameter in Table 2 of Annex III takes into account:

1. (i)

   the system's size, based on the consumption and generation of the synchronous area and the inertia of the synchronous area;

2. (ii)

   the reference incident;

3. (iii)

   grid structure and/or network topology;

4. (iv)

   load and generation behaviour;

5. (v)

   the number and response of power generating modules with limited frequency sensitive mode — over frequency and limited frequency sensitive mode — under frequency as defined in Article 13(2) and Article 15(2)(c) of Regulation (EU) 2016/631;

6. (vi)

   the number and response of demand units operating with activated demand response system frequency control or demand response very fast active power control as defined in Articles 29 and 30 of Regulation (EU) 2016/1388; and

7. (vii)

   the technical capabilities of power generating modules and demand units;

all TSOs of the synchronous area shall conduct a public consultation concerning the impact on stakeholders of the proposed modification of the frequency quality defining parameters in Table 1 of Annex III or the frequency quality target parameter in Table 2 of Annex III.