Background
CER produced a directive in December 2005 which required electricity and gas providers to safeguard the provision of supply where a customer was deemed vulnerable (vulnerable customer being defined by CER as those reliant on electrical life support equipment, the elderly and the visually/hearing/mobility impaired). The directive was translated into various Network and Market system changes and additions during 2007. There are still a few changes which will come into effect during the next schema change.