Huaneng Power International, Inc. Power Generation Within China Increases by 27.80% for the First Half Year

BEIJING, July 17, 2017

According to the preliminary statistics of the Company, for the second quarter of 2017, the Company's total power generation by its power plants within China amounted to 90.697 billion kWh on consolidated basis, representing an increase of 31.03% over the same period last year, and the total electricity sold by the Company amounted to 85.624 billion kWh, representing an increase of 31.02% over the same period last year. For the first half year of 2017, the Company's total power generation by its power plants within China amounted to 186.685 billion kWh on consolidated basis, representing an increase of 27.80% over the same period last year, and the total electricity sold by the Company amounted to 176.121 billion kWh, representing an increase of 27.55% over the same period last year. For the first half year of 2017, the Company's average on-grid electricity settlement price for its power plants within China amounted to RMB 407.49 per MWh, representing an increase of 3.30% over the same period last year.

The increase in the Company's power generation for the first half year of 2017 was mainly attributable to the following reasons: (1) the Company's acquisition of power assets in Heilongjiang, Jilin and Shandong areas was conducive to the substantial increase in the level of power generation of the Company; and (2) the Company's thermal power generation in central China and east China rose year-on-year.

The power generation (in billion kWh) by each region of the Company's domestic power plants are listed below: