(Yicai) Nov. 28 -- Construction work on China's largest electric power transmission project by installed capacity and renewable energy proportion has begun in western Qinghai province.

State Power Investment broke ground on the Qinghai Hainan Clean Energy Transmission Base Power Source Project, with a planned investment of nearly CNY73 billion (USD10.3 billion), the power generation giant announced on WeChat late yesterday.

The project will have an installed capacity of 19.44 million kW, with renewable energy accounting for over 86 percent, including 9.6 million kW of solar power, 6 million kW of wind power, 2.64 million kW of supporting coal power, and 1.2 million 4 kW-hours of electrochemical energy storage.

The base is located in Qinghai's Hainan Tibetan Autonomous Prefecture, built on wastelands that have wind and solar resources in abundance. Its power will be transmitted directly to Guangdong province via a single ±800 kilovolts ultra-high voltage direct current transmission line with a capacity of 8 million kilowatts.

The project will generate an average of 36 billion kWh of electricity a year, providing green power for the development of the Guangdong-Hong Kong-Macao Greater Bay Area and saving about 10 million tons of coal, while reducing carbon dioxide emissions by 23.5 million tons.

Editor: Martin Kadiev