FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January, 2006 (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.) Form 20-F X Form 40-F ----- ----- (Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. ) Yes No X ----- ----- (If "Yes" is marked, indicate below the file number assigned to registrant in connection with Rule 12g3-2(b): 82-__________. ) N/A Huaneng Power International, Inc. West Wing, Building C, Tianyin Mansion No. 2C Fuxingmennan Street Xicheng District Beijing, 100031 PRC This Form 6-K consists of: The announcement on power generation increase in 2005 of Huaneng Power International, Inc. (the "Registrant"), made by the Registrant in English on January 11, 2006. [GRAPHIC OMITTED] HUANENG POWER INTERNATIONAL, INC. (a Sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 902) OVERSEAS REGULATORY ANNOUNCEMENT - Power Generation increases 31.7% in 2005 This announcement is made pursuant to Rule 13.09(2) of the Rules Governing the Listing of Securities on the Stock Exchange of Hong Kong Limited. Huaneng Power International, Inc. (the "Company") announced its power generation in 2005. Based on preliminary statistics, as of 31st December 2005, the Company's total power generation on a consolidated basis in 2005 was 150.505 billion kWh, an increase of 31.7% over last year. The power generation of Yushe Power Plant, Huaiyin Power Plant, Qinbei Power Plant, Jining Power Plant and Shantou Power Plant increased significantly. The increase in power generation of the Company's power plants in 2005 was mainly attributable to the following reasons: 1. Power plants acquired in 2004, such as Luohuang Power Plant, Yueyang Power Plant, Yingkou Power Plant, Jinggangshan Power Plant, Pingliang Power Plant and Sichuan Hydro Power have made significant contribution to the increase of the Company's power generation; 2. Yushe Power Plant Phase II and Qinbei Power Plant which were put into operation in the second half of 2004, and Huaiyin Power Plant Phase II and Shantou Power Plant Phase II which were put into operation in 2005 have contributed stable generation in 2005; 3. As a result of rapid economic growth, power demand in the regions where the Company's power plants operated remained strong, thereby providing favorable market conditions for the power generation of the Company; 4. As there were less new generating units being put into operation in Shandong power grid recently, the power generation of the Company's power plants in Shandong region has posted comparatively rapid growth; 5. Safe and stable operation of generating units has also ensured the growth in the Company's power generation. The power generation of each of the Company's power plants in 2005 was listed below (in billion kWh): Dalian 9.234 Changxing 1.921 Fuzhou 9.215 Taicang 3.969 Nantong 8.403 Huaiyin 6.030 Shangan 8.450 Yushe 5.422 Shanghai Shidongkou Second 7.958 Qinbei 7.448 Shantou Coal-fired 5.455 Xindian 2.655 Shantou Oil-fired 0.005 Yingkou 4.680 Dandong 4.238 Jinggangshan 3.467 Nanjing 3.936 Yueyang 4.566 Dezhou 15.060 Luohuang 8.357 Jining 3.416 Pingliang 8.073 Weihai 4.887 Sichuan Hydro Power 6.053 Shanghai Shidongkou First 7.607 By Order of the Board Huang Long Company Secretary As at the date of this announcement, the directors of the Company are: Li Xiaopeng Qian Zhongwei (Executive director) (Independent non-executive director) Huang Yongda Xia Donglin (Executive director) (Independent non-executive director) Wang Xiaosong Liu Jipeng (Non-executive director) (Independent non-executive director) Na Xizhi Wu Yusheng (Executive director) (Independent non-executive director) Huang Long Yu Ning (Executive director) (Independent non-executive director) Wu Dawei (Non-executive director) Shan Qunying (Non-executive director) Ding Shida (Non-executive director) Xu Zujian (Non-executive director) Liu Shuyuan (Non-executive director) Beijing, the PRC 11th January 2006 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the under-signed, thereunto duly authorized. HUANENG POWER INTERNATIONAL, INC. By /s/ Huang Long -------------- Name: Huang Long Title: Company Secretary Date: January 11, 2006