Huaneng Power International, Inc. Domestic Electricity Sold in the First Three Quarters of 2021 Increased by 17.11% Year-on-Year

BEIJING, Oct. 18, 2021

According to the preliminary statistics of Huaneng Power International, Inc., (the "Company"), in the third quarter of 2021, the electricity sold by the Company's operating power plants in China, on consolidated basis, amounted to 115.188 billion kWh, representing an increase of 10.98% compared to the same period last year. For the first three quarters of 2021, the electricity sold by the Company's operating power plants in China, on consolidated basis, reached a total of 323.115 billion kWh, representing an increase of 17.11% over the same period last year. The average on-grid electricity settlement price for the Company's operating power plants in China was RMB417.79 per MWh, representing an increase of 1.28% over the same period last year. For the first three quarters of 2021, the Company's market based electricity sold ratio was 59.99%, representing an increase of 3.05 percentage points over the same period last year.

The increase in the Company's power generation was mainly attributable to the following factors:

1. In the first three quarters, the electricity consumption of the whole society maintained a high level of operation, driving the power generation to increase significantly year-on-year. Among them, the power generation of the power plants in the regions of Chongqing, Guangdong, Zhejiang, Shanghai, Fujian, Hunan, and Jiangsu increased significantly year-on-year;

2. During the peak summer period, the thermal power load maintained rapid growth, and the Company's thermal power unit utilization hours increased significantly, which further accelerated the Company's year-on-year growth in power generation.

The electricity sold (in billion kWh) of the Company, by regions, is listed below: