HUANENG POWER INTERNATIONAL INC revenue for the last year amounted to 279.87 B HKD, the most of which — 272.00 B HKD — came from its highest performing source at the moment, Electricity and Heat, the year earlier bringing 274.55 B HKD. The greatest contribution to the revenue figure was made by China — last year it brought HUANENG POWER INTERNATIONAL INC 246.72 B HKD, and the year before that — 247.17 B HKD.