Commission Regulation (EU) 2016/631Show full title

Article 13 U.K. General requirements for type A power-generating modules

1. Type A power-generating modules shall fulfil the following requirements relating to frequency stability:

(a) With regard to frequency ranges:

(i)

a power-generating module shall be capable of remaining connected to the network and operate within the frequency ranges and time periods specified in Table 2;

(ii)

the relevant system operator, in coordination with the relevant TSO, and the power-generating facility owner may agree on wider frequency ranges, longer minimum times for operation or specific requirements for combined frequency and voltage deviations to ensure the best use of the technical capabilities of a power-generating module, if it is required to preserve or to restore system security;

(iii)

the power-generating facility owner shall not unreasonably withhold consent to apply wider frequency ranges or longer minimum times for operation, taking account of their economic and technical feasibility.

(b) With regard to the rate of change of frequency withstand capability, a power-generating module shall be capable of staying connected to the network and operate at rates of change of frequency up to a value specified by the relevant TSO, unless disconnection was triggered by rate-of-change-of-frequency-type loss of mains protection. The relevant system operator, in coordination with the relevant TSO, shall specify this rate-of-change-of-frequency-type loss of mains protection.

Table 2

Minimum time periods for which a power-generating module has to be capable of operating on different frequencies, deviating from a nominal value, without disconnecting from the network.

Synchronous area	Frequency range	Time period for operation
F1 . . .	F1 . . .	F1 . . .
	F1 . . .	F1 . . .
	F1 . . .	F1 . . .
	F1 . . .	F1 . . .
F2 . . .	F2 . . .	F2 . . .
	F2 . . .	F2 . . .
	F2 . . .	F2 . . .
	F2 . . .	F2 . . .
Great Britain	[F3 47.0] Hz-[F4 47.5] Hz	20 seconds
	[F4 47.5] Hz-[F5 48.5] Hz	90 minutes
	[F5 48.5] Hz-[F6 49.0] Hz	To be specified by each TSO, but not less than 90 minutes
	[F6 49.0] Hz-[F7 51.0] Hz	Unlimited
	[F7 51.0] Hz-[F8 51.5] Hz	90 minutes
	[F8 51.5] Hz-[F9 52.0] Hz	15 minutes
F10 . . .	F10 . . .	F10 . . .
	F10 . . .	F10 . . .
	F10 . . .	F10 . . .
	F10 . . .	F10 . . .
F11 . . .	F11 . . .	F11 . . .
	F11 . . .	F11 . . .
	F11 . . .	F11 . . .
	F11 . . .	F11 . . .

2. With regard to the limited frequency sensitive mode — overfrequency (LFSM-O), the following shall apply, as determined by the relevant TSO for its control area in coordination with the TSOs of the same synchronous area to ensure minimal impacts on neighbouring areas:

(a) the power-generating module shall be capable of activating the provision of active power frequency response according to figure 1 at a frequency threshold and droop settings specified by the relevant TSO;

(b) instead of the capability referred to in paragraph (a), the relevant TSO may choose to allow within its control area automatic disconnection and reconnection of power-generating modules of Type A at randomised frequencies, ideally uniformly distributed, above a frequency threshold, as determined by the relevant TSO where it is able to demonstrate to the F12 ... regulatory authority, and with the cooperation of power-generating facility owners, that this has a limited cross-border impact and maintains the same level of operational security in all system states;

(c) the frequency threshold shall be between [F13 50.2] Hz and [F14 50.5] Hz inclusive;

(d) the droop settings shall be between 2 % and 12 %;

(e) the power-generating module shall be capable of activating a power frequency response with an initial delay that is as short as possible. If that delay is greater than two seconds, the power-generating facility owner shall justify the delay, providing technical evidence to the relevant TSO;

(f) the relevant TSO may require that upon reaching minimum regulating level, the power-generating module be capable of either:

(i)

continuing operation at this level; or

(ii)

further decreasing active power output;

(g) the power-generating module shall be capable of operating stably during LFSM-O operation. When LFSM-O is active, the LFSM-O setpoint will prevail over any other active power setpoints.

Figure 1

Active power frequency response capability of power-generating modules in LFSM-O

P_ref is the reference active power to which ΔΡ is related and may be specified differently for synchronous power-generating modules and power park modules. ΔΡ is the change in active power output from the power-generating module. f_n is the nominal frequency (50 Hz) in the network and Δf is the frequency deviation in the network. At overfrequencies where Δf is above Δf_1, the power-generating module has to provide a negative active power output change according to the droop S₂.

3. The power-generating module shall be capable of maintaining constant output at its target active power value regardless of changes in frequency, except where output follows the changes specified in the context of paragraphs 2 and 4 of this Article or points (c) and (d) of Article 15(2) as applicable.

4. The relevant TSO shall specify admissible active power reduction from maximum output with falling frequency in its control area as a rate of reduction falling within the boundaries, illustrated by the full lines in Figure 2:

(a) below 49 Hz falling by a reduction rate of 2 % of the maximum capacity at 50 Hz per 1 Hz frequency drop;

(b) below [F15 49.5] Hz falling by a reduction rate of 10 % of the maximum capacity at 50 Hz per 1 Hz frequency drop.

5. The admissible active power reduction from maximum output shall:

(a) clearly specify the ambient conditions applicable;

(b) take account of the technical capabilities of power-generating modules.

F16 Figure 2

Maximum power capability reduction with falling frequency

The diagram represents the boundaries in which the capability can be specified by the relevant TSO.

6. The power-generating module shall be equipped with a logic interface (input port) in order to cease active power output within five seconds following an instruction being received at the input port. The relevant system operator shall have the right to specify requirements for equipment to make this facility operable remotely.

7. The relevant TSO shall specify the conditions under which a power-generating module is capable of connecting automatically to the network. Those conditions shall include:

(a) frequency ranges within which an automatic connection is admissible, and a corresponding delay time; and

(b) maximum admissible gradient of increase in active power output.

Automatic connection is allowed unless specified otherwise by the relevant system operator in coordination with the relevant TSO.

Textual Amendments

F1 Words in Art. 13(1) Table 2 omitted (E.W.S.) (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(a)

F2 Words in Art. 13(1) Table 2 omitted (E.W.S.) (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(b)

F3 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(i)

F4 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(ii)

F5 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(iii)

F6 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(iv)

F7 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(v)

F8 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(vi)

F9 Word in Art. 13(1) Table 2 substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(c)(vii)

F10 Words in Art. 13(1) Table 2 omitted (E.W.S.) (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(d)

F11 Words in Art. 13(1) Table 2 omitted (E.W.S.) (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(2)(e)

F12 Word in Art. 13(2)(b) omitted (E.W.S.) (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(3)(a)

F13 Word in Art. 13(2)(c) substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(3)(b)(i)

F14 Word in Art. 13(2)(c) substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(3)(b)(ii)

F15 Word in Art. 13(4)(b) substituted (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(4)

F16 In Figure 2 “48.5” substituted for “48,5” and “49.5” substituted for “49,5” (E.W.S.) (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 1 para. 13(5)