In recent years, the state has provided strong policy support and financial subsidies for small-scale renewable energy. Based on industry developments, the National Energy Administration (NEA) issued the "Measures for the Management of Distributed Photovoltaic Power Generation Development and Construction" in April. These measures reclassify agro-photovoltaic, fishery-photovoltaic, and small ground-mounted power stations as centralized PV power stations, drawing a clear distinction from distributed PV projects. Existing projects that completed filing and grid connection before May 1, 2025, will still operate under the original policy. All subsequent projects must follow the new regulations and cannot be grid-connected under the category of distributed photovoltaic. For genuine small-scale integrated wind-solar-storage systems used in areas truly incapable of grid connection, there are inherently no grid-connection requirements. Their flexibility in transportation and installation, coupled with stable operation, allows them to effectively meet user needs.

With the progress of technology, the performance of wind and solar energy is gradually improving, and the efficiency of power generation is increasing, while the cost of power generation is decreasing, and the progress of energy storage technology makes the stability of renewable energy improved. The development of integrated wind and solar storage systems will further

In the context of the "Dual-Carbon" goals, energy transition has been a primary focus for the energy industry. Large-scale renewable and energy storage power plants are the mainstream solution to replace thermal power plants, while distributed energy serves as a supplement. Integrated wind-solar-storage technology is a crucial component of distributed energy.

Integrated wind-solar-storage technology is a novel and promising distributed power generation solution. It converts, stores, and utilizes electricity locally, making it particularly suitable for remote areas beyond the reach of the power grid. It also effectively mitigates power losses associated with voltage transformation and long-distance transmission

This system combines micro-wind turbines, compact photovoltaic (PV) panels, and localized energy storage to enhance power supply stability through complementary multi-energy generation. As solar and wind energy are weather-dependent and exhibit fluctuating output, the integrated storage device effectively smooths these fluctuations, ensuring a stable and reliable energy supply.

Solar photovoltaic panels and micro-wind generators convert solar and wind energy into electricity, and control the current going to inverters and batteries through controllers, ensuring the safe operation of the circuit system. The inverter converts the new energy current from DC to AC and provides it to the AC power equipment. The current generated by the whole system is not connected to the power grid to provide electricity to local power demand users. The whole small wind power storage integration system is simple, easy to transport, low output power, and can well meet the power demand in remote areas, pastures, base stations, border posts, small islands and other areas where the grid is not as strong as it should be.

For example, small distributed solar power system is mainly composed of solar panels, inverters, energy storage system, etc., which makes full use of solar energy resources and achieves energy saving and emission reduction. Solar panel is the core component of small home solar power generation system, which can convert solar radiation energy into electricity. The performance of solar panels directly affects the power generation efficiency and service life of the whole system. The inverter is a device that converts DC power into AC power, which can efficiently convert the power output from solar panels to ensure the stability and reliability of power supply. The energy storage system is mainly used to store excess power and release it when power supply is needed to improve the operational efficiency of the system. Common energy storage systems include batteries, lithium-ion batteries, and so on.

It can be seen that the small-scale integrated wind energy storage system is to organically integrate these devices together, each playing an effective role.

Different from large-scale wind power generation technology, micro-wind power generation mainly adopts vertical-axis wind turbine, which can convert wind power into electric power in breeze environment and achieve all-weather, 360-degree wind. Compared with traditional wind turbine, vertical-axis wind turbine can achieve stable power generation under low-wind conditions through simplified wind turbine performance design, lightweight materials and intelligent control technology, and has the advantages of no noise, no pollution, simple structure, low operating cost, low construction difficulty, good industrial integration, low investment cost, and so on. It has the advantages of no noise, no pollution, simple structure, low operation cost, small construction difficulty, small footprint, wide application field, good industrial integration and low investment cost. After several years of development, the starting wind speed of breeze generator has been reduced from 5 meters/second to 0.4 meters/second, which greatly improves the adaptability of micro-wind power generation to natural environmental conditions.