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 October, 2005 (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 commencement of commercial operation of Unit 3 in Shantou Power Plant Phase II of Huaneng Power International, Inc. (the "Registrant"), made by the Registrant in English on October 25, 2005. 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: Director Date: October 25, 2005 [GRAPHIC OMITTED] (a Sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 902) Commencement of Commercial Operation of Unit 3 in Shantou Power Plant Phase II 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 ("Listing Rules"). Huaneng Power International, Inc. (the "Company") announced that the 600MW coal-fired generating unit (Unit 3) of Shantou Power Plant Phase II completed the 168 hours full-load trial run and was put into commercial operation on 20th October, 2005. Before being put into operation, construction of the desulphurization facilities of Unit 3 had been completed at the same time as the principal part of the generating unit, and a flue-gas emission test was carried out on 30th September, 2005. To date, the Company's total generation capacity on an equity basis has increased from 21,653MW to 22,253MW. Huaneng Power International, Inc. develops, constructs, operates and manages large power plants in China nationwide, with a total generation capacity of 22,253MW on an equity basis. The Company wholly owns sixteen operating power plants, and has controlling interests in ten operating power companies and minority interests in four operating power companies. Currently, it is one of the largest independent power producers in China. By Order of the Board Huang Long Director 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) Xu Zujian (Non-executive director) Liu Shuyuan (Non-executive director) Beijing, the PRC 25th October, 2005