The Secretary of State may by order amend section 10(8) or (12) below, paragraph 4 of Schedule 2A to this Act or paragraph 4, 8 or 16 of Schedule 2B to this Act by substituting—
where the limit is for the time being expressed by reference to a number of therms—
such lower number of therms as he considers appropriate; or
such lower limit, expressed by reference to a number of kilowatt hours, as he considers appropriate; or
where the limit is for the time being expressed by reference to a number of kilowatt hours, such lower number of kilowatt hours as he considers appropriate.
An order under subsection (1) above may be made so as to provide for the number specified in one provision to differ from that for the time being specified in any of the other provisions.
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