Changes made by Directive 2008/92/EC of the European Parliament and of the Council of 22 October 2008 concerning a Community procedure to improve the transparency of gas and electricity prices charged to industrial end-users
EU Directive 2008/92
The legislation Directive 2008/92/EC of the European Parliament and of the Council of 22 October 2008 concerning a Community procedure to improve the transparency of gas and electricity prices charged to industrial end-users changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.