The Journal of Energy is a scientific and a professional journal with the first issue in 1951. Since 1966 (15th publishing year) The Journal of Energy has become the journal of Elektroprivreda Hrvatske (former name of the national power utility Hrvatska elektroprivreda i.e. HEP d.d.). In 1974 (24th publishing year) the Journal (under the name Energija) became the professional journal of Elektroprivreda Hrvatske, and since 1985 (35th publishing year) it was renamed to Journal of Elektroprivreda Hrvatske. In recent history, in 1990 it became the Journal of Energy.
By 2009 six issues of the journal were published per year, with five chosen and reviewed articles in each issue. In the period between 2006 and 2009 all the articles in the journal were published bilingually, in Croatian and in English, with the circulation of 1,500 copies per issue.
Since 2010, the Croatian branch of CIGRÉ (HRO CIGRÉ) joined as a co-publisher of the Journal.