# The Warm Home Discount Regulations 2011, Regulation 13: Calculation of non-core spending obligation


(1) The non-core spending obligation of a compulsory scheme electricity supplier for a scheme year (subject to any adjustment under regulation 14) is the relevant percentage of the aggregate non-core spending obligation for that scheme year.
(2) The relevant percentage, in relation to a compulsory scheme electricity supplier (“C”) and a scheme year, is X×100 Y % where—
(a) X is C’s number of domestic customers, unless sub-paragraph (b) or (c) applies;
(b) if C is connected to one or more scheme gas suppliers but not to any other compulsory scheme electricity suppliers, X is the combined number of domestic customers of C and its connected scheme gas suppliers;
(c) if C is connected to one or more scheme gas suppliers and to one or more other compulsory scheme electricity suppliers, X is a number equal to Z% of the combined number of domestic customers of C and its connected scheme gas suppliers and connected compulsory scheme electricity suppliers; and
(d) Y is the total number of domestic customers of all—
(i) compulsory scheme electricity suppliers; and
(ii) scheme gas suppliers which are connected to a compulsory scheme electricity supplier.
(3) In paragraph (2)(c), “Z%” is C’s number of domestic customers as a percentage of the combined number of domestic customers of C and its connected compulsory scheme electricity suppliers.
(4) In paragraphs (2) and (3)—
(a) references to a supplier’s number of domestic customers are to the supplier’s number of domestic customers on the 31st December preceding the start of the scheme year; and
(b) a supplier is to be treated as connected to another supplier if those suppliers were connected on the 31st December preceding the start of the scheme year (but not otherwise).

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Source: https://www.legislation.gov.uk/ukdsi/2011/9780111507650/regulation/13 (the official version)
Page: https://openlegislation.uk/draft-warm-home-discount-regulations-2011/regulation-13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.