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 December, 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
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(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
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(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 completed trial run of Unit 5 of Luohuang Power Plant of
Huaneng Power International, Inc. (the "Registrant"), made by the Registrant in
English on December 12, 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 Jian
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Name: Huang Jian
Title: Company Secretary
Date: December 13, 2006
[GRAPHIC OMITTED]
(a Sino-foreign joint stock limited company incorporated in the
People's Republic of China)
(Stock Code: 902)
Overseas Regulatory Announcement
Unit 5 of Luohuang Power Plant Completed Trial Run
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") announces that a 600MW
coal-fired generating unit of Huaneng Chongqing Luohuang Power Generation
Limited Liability Company (Unit 5 at Phase III of Huaneng Luohuang Power
Plant), in which the Company owns 60% interests, completed the 168 hours trial
run on 8th December 2006. To date, the Company's total generation capacity on
an equity basis has increased from 26,552MW to 26,912MW.
By Order of the Board
Huang Jian
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
(Non-executive Director) (Independent Non-executive Director)
Na Xizhi Liu Jipeng
(Executive Director) (Independent Non-executive Director)
Huang Long Wu Yusheng
(Non-executive Director) (Independent Non-executive Director)
Wu Dawei Yu Ning
(Non-executive Director) (Independent 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
12th December 2006