(1)Notwithstanding anything in sections 16 to 21 above, a person who requires a supply of electricity in pursuance of section 16(1) above—
(a)may enter into a special agreement with the public electricity supplier for the supply on such terms as may be specified in the agreement; and
(b)shall enter into such an agreement in any case where—
(i)the maximum power to be made available at any time exceeds 10 megawatts; or
(ii)it is otherwise reasonable in all the circumstances for such an agreement to be entered into.
(2)The Secretary of State may by order provide that subsection (1) above shall have effect as if for the wattage mentioned in paragraph (b) there were substituted such other wattage as may be specified in the order; but before making such an order, he shall consult with public electricity suppliers and with persons or bodies appearing to him to be representative of persons likely to be affected.
(3)So long as any such agreement as is mentioned in subsection (1) above is effective, the rights and liabilities of the parties to the agreement shall be those arising under the agreement and not those provided for by sections 16 to 21 above; but nothing in this subsection shall prejudice the giving of a notice under section 16(2) above specifying as the day on which the supply is required to commence the day on which such an agreement ceases to be effective.
(4)In this Part “tariff customer” means a person who requires a supply of electricity in pursuance of section 16(1) above and is supplied by the public electricity supplier otherwise than on the terms specified in such an agreement as is mentioned in subsection (1) above.