Apple Inc, the world's biggest company by market value, is entering the overseas power-generation sector by working with a United States partner on the building of two photovoltaic solar power projects in Sichuan province in western China.

SunPower Corp, the second-largest solar power producer in the US, revealed in a statement that it will build two 20-megawatt facilities in China, in cooperation with Apple.

The two stations, located in the province's Aba Tibetan and Qiang autonomous prefecture, will be co-owned by Apple and Sichuan Shengtian New Energy Development Co Ltd, SunPower's project-development joint venture.