NRG ENERGY INC revenue for the last year amounted to 24.27 B CHF, the most of which — 10.56 B CHF — came from its highest performing source at the moment, East, the year earlier bringing 15.50 B CHF. The greatest contribution to the revenue figure was made by United States — last year it brought NRG ENERGY INC 24.27 B CHF, and the year before that — 29.17 B CHF.