Huaneng Power International, Inc. (the "Company") and its subsidiaries develop, construct, operate and manage large power plants throughout China. As of March 2011, the Company's attributable and controllable installed capacity were respectively 50,935MW and 54,402MW, making it one of the largest listed power producers in China. The Company owns power plants in 18 provinces in China and it wholly owns an operating power company in Singapore.
The company mainly engages in the development, construction and operation of large power plants utilizing modern technology and equipment，and using international as well as domestic capital. Its power plants are advanced in equipment, stable and efficient. Based in power industry, the company emphasizes breakthroughs in technology, in organizational system and in management, breaking many records and creating many milestones among the peers in the progress of power technology, power plant construction and management. The Company introduced China's first 600MW supercritical generating unit. Huaneng Dalian Power Plant is the first power plant in China received the title of "First-rate Thermal Power Plant". Unit 1 of Huaneng Yuhuan Power Plant is the first operational ultra-supercritical coal-fired unit in China with 1000MW of capacity. Huaneng Jinlin Power Plant established the nation’s first digital 1000MW coal unit. Huaneng Haimen Power Plant unit 1 is the world’s first 1000MW using seawater desulfurization. The Company trades in New York, Hong Kong and Shanghai, the first such power company in China. The full labor productivity of the Company ranks among the best in domestic power industry. Investing into Huaneng Shidaowan Nuclear Power Company and Hainan Nuclear Power Company Ltd., the Company also entered the area of nuclear Power. Meanwhile the Company actively integrates different industries, investing stronger into the coal industry, harbor and shipping, strengthening the ability to supply the coal by itself, for more storage and transfer at the harbor and shipping power at the sea. A network has basically been built connecting the power generation, coal supply, harboring and shipping.