[This Form 6-K consists of: POWER GENERATION WITHIN CHINA INCREASES BY 22.03% IN 2011 Huaneng Power International, Inc. (the "Company") announces its power generation of 2011. According to the Company's preliminary statistics, as of 31 December 2011, the Company's total power generation within China on consolidated basis amounted to 313.554 billion kWh, representing an increase of 22.03% over the same]

[This Form 6-K consists of: NON-PUBLIC ISSUANCE OF DEBT FINANCING INSTRUMENTS As resolved at the 2010 annual general meeting of Huaneng Power International, Inc. (the "Company") held on 17 May 2011, the Company has been given a mandate to apply to the National Association of Financial Market Institutional Investors for quota of the non-public issuance of debt financing instruments with]

[This Form 6-K consists of: 1. 2. 3. 4. Document 1]

[This Form 6-K consists of: ANNOUNCEMENT REGARDING COMPLETION OF IMPLEMENTATION OF SHARE INCREASE PLAN BY CONTROLLING SHAREHOLDER OF THE COMPANY Huaneng Power International, Inc. (the "Company") received a notification on 31 December 2011 from the Company’s controlling shareholder, China Huaneng Group ("Huaneng Group") that as of 30 December 2011, the plan for increasing its shareholding in the Company's shares by]

[This Form 6-K consists of: Increase in Shareholdings in A Shares by controlling shareholder As stated in the announcement dated 4 January 2011 regarding "The acquisition of A Shares in Huaneng Power International, Inc. by its controlling shareholder" made by Huaneng Power International, Inc. (the "Company"), the Company’s controlling shareholder, China Huaneng Group ("Huaneng Group"), would increase its shareholdings in]