1. The carrying out of development to provide any of the following—
(a)a generating station, the construction of which (or the operation of which) will require an Article 39 consent but which is not a development falling within Schedule 1;
(b)the extension of any generating station, where such extension will require an Article 39 consent;
(c)an electric line installed above ground with a voltage of 33 kilovolts or more, the installation of which (or the keeping installed of which) will require an Article 40 consent but which is not a development falling within Schedule 1; or
(d)an electric line installed above ground in a sensitive area, the installation of which (or the keeping installed of which) will require an Article 40 consent but which is not a development falling within either Schedule 1 or sub-paragraph (c).