It finished a 10 MW array in Shandong province, a 10 MW project in Zhejiang province and a 20 MW installation in Hebei province, according to a statement to the Hong Kong stock exchange.
The group owns 100% stakes in all three projects.
Its cumulative installed PV capacity now stands at 184 MW.
Huadian Power International recorded a net profit of 3.7 billion yuan ($540.3 million) in the first nine months of 2016, down 38.7% year on year.
In late January, it said that it expected to post a profit decline of roughly 47% to 57% in 2016. However, it has yet to release its full-year earnings.
The group, which has a dual listing on the Shanghai stock exchange, operates solar, wind, coal-fired and hydropower plants throughout China.
In 2015, it was one of several companies selected by the National Energy Administration to build the first 950 MW phase of a 3 GW “Top Runner” solar demonstration base in Shanxi province.