Sunpower Group Ltd., an investment holding company, engages in the investment, development, and operation of centralized heat, steam, and electricity generation plants in the People's Republic of China. It involves investment in clean energy business; production and supply of heat and electricity; central heating and power generation; thermal production and supply; energy-saving and environmental protection technology research; supply of steam, heat gas, and electricity; provision of steam to industrial enterprises; and sale of electricity. The company also focused on clean energy in economically developed regions and industrial clusters. The company was founded in 1997 and is headquartered in Nanjing, the People's Republic of China.