With the rapid development of China's new energy industry, the development of energy storage technology and its industries has gradually become the focus of attention of all parties. At present, the development of energy storage in our country has just started, but with the implementation of the new electric power reform program in our country, the development of new energy power generation, smart micro-grid, new energy vehicles and other industries will continue to accelerate, and the application of energy storage technologies will form a new development trend. Energy storage solution to the new program At present, our country is facing many problems to be solved, such as global warming, energy shortages, low intelligence of traditional power grids and low operating efficiency. Active development of new energy and energy storage technologies and reduction of human dependence on fossil fuels have become Industry and science and technology research hot topics. An Si Zhuo (Nanjing) New Energy Co., Ltd. Song Jiangtao, deputy general manager of marketing introduced in recent years, with the dramatic growth of renewable energy development and utilization of renewable energy power generation and the grid after the debate whether the actual economic value from Not stopped. Since most renewable energy sources, especially wind and solar energy, are located in less populated areas and far from the grid, there is a huge cost of power transmission to users. At the same time, the natural characteristics of solar discontinuities and the fact that their power generation is not easily interconnected result in serious power idle problems and further increase the production cost of renewable energy power generation. With the development of new energy technologies and expansion of the power grid, the cost of wind power generation is expected to reach 0.14 US $ / kWh by 2018, and the solar energy will reach 0.08 US $ / kWh, which is more expensive than natural gas of US $ 0.06 / kWh. Experts believe that as more coal is needed to maintain the stability of the grid during power generation, wind and solar power generation will generate more carbon dioxide emissions and new and effective energy storage solutions are needed. Wind energy storage efficiency needs to be improved Song Jiangtao that, with the help of energy storage system, too much renewable energy can be preserved in low power demand, and when the demand for electricity is high. It is estimated that the utilization of renewable energy can be increased from 30% to 60%, and it is estimated that it will reduce the electricity production cost in half. At the same time, the regenerative power generated from the energy storage device is very stable and continuous, so no more coal is needed to maintain the grid stability. Song Jiangtao explained that at present, the battery system has been widely used to store excess solar energy, due to the maturity of related technologies and lead low prices and the negative impact on the environment the smallest, lead-acid battery system is the most cost-effective battery system, However, due to the relatively short service life caused by electrode vulcanization, the use of lead-acid batteries is limited to some extent. However, lithium-ion batteries have attracted a great deal of attention in recent years because lithium-ion batteries have a longer cycle life and significantly reduce the weight. At the same time, because lithium-ion batteries do not have memory, so do not need regular complete discharge, saving a lot of maintenance costs. However, due to the low reserves of lithium on Earth, the production cost of lithium-ion batteries is very high. A Stanford study says most battery solutions are not suitable for wind energy storage because of their low ESOI of 5 to 32, implying that the energy needed to store wind power is greater than the actual stored energy cost Higher, so it is necessary to develop new solutions to improve the energy storage efficiency of wind power. The advantages of proton exchange membrane fuel cell power system Song Jiangtao said that as the lightest element on Earth, hydrogen has the highest energy density and can generate water through electricity decomposition. Hydrogen as a medium for energy storage can be generated by excess wind and solar power if the water cell is integrated with wind power or solar panels. Hydrogen is electrolyzed into hydrogen by a hydrogen plant and integrated with a proton exchange membrane (PEM) fuel cell Power generation.