These Regulations are made under Part 2, Chapter 3 of the Energy Act 2013 (c. 32) (“the Act”). They amend in various respects the Electricity Capacity Regulations 2014 (S.I. 2014/2043) (“the Principal Regulations”), which have previously been amended by Schedule 2 to the Electricity Capacity (Supplier Payment etc.) Regulations 2014 (S.I. 2014/3354) (“the Supplier Payment Regulations”), by the Electricity Capacity (Amendment) Regulations 2015 (S.I. 2015/875), and by the Electricity Capacity (Amendment) (No. 2) Regulations 2015 (S.I. 2015/1974). They also contain amendments to the Supplier Payment Regulations.