WEC ENERGY GROUP INC revenue for the last year amounted to 8.06 B EUR, the most of which — 6.00 B EUR — came from its highest performing source at the moment, Utility Operations - Wisconsin, the year earlier bringing 6.50 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought WEC ENERGY GROUP INC 8.06 B EUR, and the year before that — 8.97 B EUR.