The two smart grid development projects - Kibernet and Mirabel - are used to expose the problems and unresolved issues of the demand side management (DSM) usage from several aspects. The article describes two different approaches of automatic controlling of the demand and consumer communication. Beside the technical solution the article exposes the problems at defining the user of the DSM system in the EE scheme and its economic justification. Separate and significant problems are also the social problems of accepting the system by the end consumers.