“Building a strong smart grid” has been listed as one of the goals in the Chinese government’s Nation Twelfth Five-Year Plan. In 2010, as world’s largest utility, the State Grid Corporation of China (SGCC), announced plans to invest $250 billion in electric power infrastructure upgrades between 2011 and 2015, among which $45 billion is earmarked for smart grid technologies. Another $240 billion between 2016 and 2020 will be added to complete the smart grid projects. China’s another national utility-China Southern Power Grid, also launched its smart grid roadmap in 2011 to build a smart, efficient, reliable, and green grid in next 10 years. Ultimately, the goal of the Chinese government is to build a strong national smart grid capable of transmitting power from conventional and renewable energy sources to the remote load centers. Besides the advances in substation and distribution systems, ultra-high voltage (1000kV AC and ±800kV DC) transmission is a salient feature in the Chinese smart grid definition and development compared to the other countries. In this special issue, we invite original and unpublished submissions discussing new smart grid theories, technologies, challenges, and products developed in China. Pilot projects, demonstration or field application experiences, discussions on policy issues and methods to evaluate the benefit brought by smart grid will also be given consideration for publication.