China has received bids for solar projects from 50 firms in an effort to double the country’s solar energy capacity.

Astronergy vice director Qiu Zhanwei told Bloomberg that the tender process has generated 135 offers to build and run solar plants in six provinces, including offers from China Guangdong Nuclear Power.

China is using a bidding system for the second time in history for granting concessions to build and run solar energy plants after the first batch was awarded last year.

The 13 concession projects, generating 280MW, almost equals the cumulative installed solar capacity in China in 2009, according to Bloomberg.

The capacity of each project is bigger than independently developed plants that are normally approved, which average about 10MW, and the government has completed preliminary work for each project.