# The Greenhouse Gas Emissions Trading Scheme Auctioning (Amendment) Regulations 2026, Regulation 2: Amendment of the Greenhouse Gas Emissions Trading Scheme Auctioning Regulations 2021


(1) The Greenhouse Gas Emissions Trading Scheme Auctioning Regulations 2021 are amended as follows.
(2) In regulation 2 (interpretation), in the definition of “auction reserve price” for “regulation 6(9)” substitute “regulation 6(13)”.
(3) In regulation 6 (auction clearing price and resolution of tied bids)—
(a) In paragraph (9)—
(i) for “For the purposes of these Regulations” substitute “Subject to paragraphs (9A) to (9E)”;
(ii) for “£22” substitute “£28”;
(iii) omit the words from “or” to the end;
(b) after paragraph (9), insert—
“(9A) The auction reserve price will increase on 1st January 2027 and annually on 1st January in accordance with the following formula—
A ( 1 + B 100 ) where—
A is the auction reserve price as at the preceding 31st December, and
B is the most recent annual GDP deflator figure.
(9B) Where an auction reserve price calculated in accordance with paragraph (9A) includes a fraction of a penny, it is to be rounded up to the nearest whole penny.
(9C) If the most recent annual GDP deflator figure is 0 or a negative number, the auction reserve price will not be calculated in accordance with paragraph (9A) on 1st January but will instead remain unchanged.
(9D) In any year the Treasury may by direction specify the auction reserve price as any sum that the Treasury consider appropriate.
(9E) Where the Treasury make a direction under paragraph (9D), the auction reserve price will be uprated in accordance with paragraphs (9A) to (9C) from the following 1st January, unless otherwise specified in that direction.”;
(c) In paragraph (10), for “paragraph (9)” substitute “paragraph (9D)”;
(d) After paragraph (11), insert—
“(12) For the purposes of this regulation—
“most recent annual GDP deflator figure” means, as at the preceding 31st July, the annual ‘gross domestic product at market prices: implied deflator’ figure for the United Kingdom, which is available and published—
(a) by the Office for National Statistics,
(b) within the most recent quarterly national accounts, and
(c) under dataset identifier IHYS.
(13) A reference in these Regulations to the “auction reserve price” is to the auction reserve price determined in accordance with paragraphs (9) to (9E).”.

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Source: https://www.legislation.gov.uk/uksi/2026/214/regulation/2 (the official version)
Page: https://openlegislation.uk/greenhouse-gas-emissions-trading-scheme-auctioning-amendment-regulations-2026/regulation-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.