asked the Secretary of State for Energy whether he will list the main items of evidence he has available to him in his examination with the industries concerned of the social and other implications of various possible modifications to the structure of the electricity and gas tariffs; whether he will place copies of these documents in the Library; and whether he will make a statement on the progress of the inquiry.

Information on this subject was given in my answers of 16th, 18th and 20th December 1974 and material was placed in the Library. In addition the Chairman of the Electricity Council and the British Gas Corporation have written to my hon. Friend with further information of the kind already given to my Department. I have nothing more to add.