Last year, China National Nuclear Corp and China Guangdong Nuclear Power Corp bid in two separate consortiums against each other for a stake in the UK nuclear project Horizon, but both later withdrew without any public explanation.
The home market has long been the focus of Chinese nuclear enterprises, because China currently has the world's largest number of reactors under construction and it has so far built overseas reactors only in Pakistan.
Wu Zongxin, professor at the Institute of Nuclear and New Energy Technology at Tsinghua University, said that it is important for Chinese nuclear power enterprises to look beyond the domestic market to bigger plants in developed markets such as the UK, to lessen the potential risk of overcapacity in the domestic nuclear power industry.
"China has strong capital ability, which makes it an important investor in the nuclear power sector when many developed countries are faced with budget constraints," he said. "But the problem that determines whether Chinese firms can go out lies in the advanced nuclear power technology.
"Many State-owned companies still don't have their own intellectual property rights to produce nuclear energy facilities to meet international safety standards," he said.
However, Chinese enterprises are making huge progress in nuclear power, said Davey, who just visited China. During his trip, he held talks with several Chinese nuclear companies, including CGN, CNNC and State Nuclear Power Technology Corp.
"We recognize the strong credentials of a Chinese nuclear industry - an established track record of delivering safe nuclear power over the past 30 years," he said.
He added that British and Chinese companies' potential cooperation is not limited to the UK and China, but also in other markets.
During his China visit, Davey also signed a memorandum of understanding on offshore wind power with Wu Xin-xiong, head of China's National Energy Administration, the first of its kind that China has signed with another country.
Davey said the MOU will help remove the technological and market barriers for both countries to accelerate wind power development. He said cooperation could involve sharing technology as well as investment.