The Electricity Supply Industry (Rateable Values) (England) Order 2000
Under paragraph 3(1) of Schedule 6 to the Local Government Finance Act 1988, the Secretary of State may by order provide that a hereditament of a description prescribed in the Order is not to be valued for non-domestic rating on the normal basis set out in paragraphs 2 to 2C of that Schedule (that is to say, by reference to the rent a hypothetical tenant would pay for the hereditament on an annual basis), but in accordance with prescribed rules.