Before the 1st January 2013, ‘prior to the amendment’ version of the Act – the Energy Law was in force. It sanctioned the existence of natural monopoly in the supply of gaseous fuels or electricity. It placed the consumer in a much weaker position in relation to the supplier. The aim of the article is to present informal rules of procedure applied by individual consumers of the energy till the end of 2012, and after changes, i.e. since the beginning of 2013. The study includes information related to the psychology of the individual. It concerns the strategy of making a selection and actions which are taken by the individual recipient.