The extent to which governments subsidize electricity generation technologies is not generally clear. However, claims abound that each generation type—nuclear, fossil fuel and renewables - benefits to the detriment of others. While the literature on energy subsidies is considerable and growing, only a fraction of this focuses on electricity generation, and only a small subset attempts to quantify subsidies. This paper reviews the information currently available for each fuel type, identifies the major gaps in the literature and makes a preliminary comparison of results.