Overall, the renewable energy development is far from balance between different technologies. As for wind, the development target for 2020 will not only be achieved but also be overtaken. For instance, the planned installation of 30 GW might be exceeded by an actual installation of 100 GW. The solar thermal utilization target of 300 billion m2 will be upgraded to 500 billion m 2 . The solar power generation will run an even quicker trail, achieving a total installation of 10-20 GW instead of 1.8 GW as planned for 2020. The biggest barriers remain with biomass. It seems difficult to reach the targets for both biomass power and biofuel that are set as 30 GW and 12 Mt respectively by 2020. Main barriers to be removed for different sectors are as follows: l For wind, the grid-connection constraints need to be resolved, along with the stability and reliability of equipment, and the developing model needs to be shifted from installation-focused to generation-focused; l For solar water heater industry, the speed-up of the industry relies on the enforcement of mandatory installation and the fiscal subsidy of rural utilization; l For solar power generation, the cost needs to be further decreased and the reliability of the products needs to be improved while the high energy consumption and pollution in silicon material production need to be addressed as well; and l For biomass power generation and biofuel development, more efforts need to be made in the feedstock collection and the second-generation technology advancement respectively.