XCEL ENERGY INC revenue for the last year amounted to 12.87 B EUR, the most of which — 10.37 B EUR — came from its highest performing source at the moment, Regulated Electric, the year earlier bringing 11.33 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought XCEL ENERGY INC 12.87 B EUR, and the year before that — 14.31 B EUR.