The Electricity Capacity Regulations 2014

“Demand side response CMU” E+W+S

5.—(1) A “demand side response CMU” is a commitment by a person (“a DSR provider”) to provide an amount of capacity when required to do so under capacity market rules, by a method of demand side response which—

(a) is specified in paragraph (2);

(b) in the case of a proven demand side response CMU, meets the conditions in paragraph (3); and

(c) in the case of an unproven demand side response CMU—

(i) meets the conditions in paragraph (3); or

(ii) will meet those conditions prior to the start of the delivery year for which the DSR provider has a capacity agreement.

(2) The methods by which a DSR provider may provide DSR capacity are—

(a) by causing one or more customers (a “DSR customer”) to do one or both of the following—

(i) [F1 subject to paragraph (2A),] reduce the DSR customer's import of electricity as measured by one or more half hourly meters;

(ii) export electricity generated by one or more permitted on-site generating units;

(b) by the pre-determined variation of the demand of a DSR customer for active power at a site in response to changing system frequency under the terms of a contract with the national system operator.

[F2 (2A) For the purposes of this regulation, the reference in regulation 5(2)(a)(i) to a “DSR customer’s import of electricity” does not include import of electricity primarily for the conversion of electricity into a form of energy which can be stored by a storage facility.]

(3) The conditions in this paragraph are that—

(a) the DSR provider must, in relation to each demand side response CMU component—

(i) be the DSR customer;

(ii) own the DSR customer; or

(iii) have contractual DSR control over the DSR customer;

(b) each demand side response CMU component must be connected to a half hourly meter that is capable of measuring the import or export of electricity to or from that demand side response CMU component;

(c) the total amount of DSR capacity which the DSR provider commits to provide must exceed the minimum capacity threshold; and

(d) if the demand side response CMU consists of demand side response CMU components on two or more different sites, the DSR capacity of the demand side response CMU must not exceed 50MW.

(4) In paragraph (3)(a), “contractual DSR control” means, in respect of any delivery year, having the right (whether by ownership or pursuant to contract notwithstanding that terms and conditions may apply to its exercise) exclusively to control all or part of the metered volume of any demand side response CMU component to provide demand side response when required to do so in that delivery year.

Textual Amendments

F1 Words in reg. 5(2)(a)(i) inserted (4.7.2020) by The Electricity Capacity (Amendment etc.) (Coronavirus) Regulations 2020 (S.I. 2020/697), reg. 1(2), Sch. 1 para. 1(1) (with reg. 1(3))

F2 Reg. 5(2A) inserted (4.7.2020) by The Electricity Capacity (Amendment etc.) (Coronavirus) Regulations 2020 (S.I. 2020/697), reg. 1(2), Sch. 1 para. 1(2) (with reg. 1(3))