# The Electricity Capacity Regulations 2014, Paragraph 2: Weighting factor


(1) The Settlement Body must, by no later than 3 months before the commencement of a capacity year (“year X”), calculate in respect of each month of year X (“month M”) the weighting factor (“ W F mx ”) which is to be used for the purpose of calculating capacity payments in respect of that month.
(2) W F mx must be calculated to 3 decimal places in accordance with the formula—
W F mx = A B .
(3) In this paragraph—
“A” means the sum of the amounts of electrical demand in GWh in Great Britain during each of the months corresponding to month M in the calculation period;
“B” means the sum of the amounts of electrical demand in GWh in Great Britain during the calculation period;
“the calculation period” means the period of 3 years ending on the last day of the month preceding the month in which W F mx is calculated.

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Source: https://www.legislation.gov.uk/ukdsi/2014/9780111116852/schedule/1/paragraph/2 (the official version)
Page: https://openlegislation.uk/draft-electricity-capacity-regulations-2014/schedule-1/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.