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In June 2020, China released a master plan to build the whole of Hainan Island into a globally influential and high-level free trade port by the middle of the century. Series of opening-up policies have been issued to create a "foreign investor-friendly" business environment in Hainan.
* China's Hainan Free Trade Port (FTP) will officially launch an island-wide independent customs operation on Dec. 18, 2025, which marks the anniversary of the milestone Third Plenary Session of the 11th CPC Central Committee in 1978 that ushered in the reform and opening-up, underscores China's unwavering commitment to high-standard opening-up.
The Catalogue of Encouraged Industries in the Hainan Free Trade Port (2024 Edition), which came into effect on 1 March 2024, specifies that in addition to those categories receiving encouragement under existing national industrial catalogues, Hainan will have 14 more industries receiving such treatment, creating a total of 176 types.
An aerial drone photo shows a duty-free shopping mall in Sanya, South China's Hainan province, May 29, 2025. [Photo/Xinhua] The Hainan Free Trade Port will launch island-wide independent customs operations on Dec 18, a key step in transforming the tropical island into a globally significant free trade hub, a senior official announced Wednesday.
These systems are designed with undersized energy storage system capacities due to the prohibitive mass of a fully redundant system [, ]. With a 50 kW-class solar array and electric propulsion system, even an undersized system represents capacity in the highest ranges of space heritage [43, 210].
Short-term storage that lasts just a few minutes will ensure a solar plant operates smoothly during output fluctuations due to passing clouds, while longer-term storage can help provide supply over days or weeks when solar energy production is low or during a major weather event, for example.
Compared to their terrestrial counterparts, space energy storage systems must be able to withstand severe radiation, extreme cycling, intensive temperature fluctuations, and vacuum pressures; all within incredibly stringent specific energy and energy density parameters.
Energy storage systems for space applications have been critically reviewed and comprehensively assessed. Batteries, regenerative fuel cells, flywheels, capacitors, and thermal systems have been evaluated in the context of a space application framework.
