(1) This section:
(a) applies for the purposes of sections 153F, 153G and 153H; and
(b) does not limit the manner in which the purpose of a person may be established for the purposes of any other provision of this Act.
(2) A corporation may be taken to have done something:
(a) for the purpose of substantially lessening competition in an electricity market; or
(b) for the purpose of distorting or manipulating prices in an electricity spot market;
even though, after all the evidence has been considered, the existence of that purpose is ascertainable only by inference from the conduct of the corporation or of any other person or from other relevant circumstances.