The photovoltaic tracking system that “pursues” the sun breaks the “passive” situation of traditional light storage power stations

17 Jan , 2024

The new photovoltaic power station has changed the mode that the traditional photovoltaic storage power station can only receive light passively and fixedly, and drives the photovoltaic modules through the tracking bracket to actively “chase” the sun to obtain the maximum power generation.

In recent years, with the rapid development of the world economy, energy consumption has increased dramatically, the reserves of traditional non-renewable energy have decreased rapidly, and the ecological environment has been further damaged, and people’s demand for renewable energy has become more and more intense.

Therefore, clean and renewable energy, including photovoltaics, is gradually favored by all countries. In 2022, China’s new installed photovoltaic capacity will be 87.41 GW, a year-on-year increase of 59.3%. It is predicted that by 2050, 70% of China’s total annual installed capacity will come from solar and wind power generation. Therefore, how to use new energy storage technology to improve the utilization efficiency of new energy has become the top priority of the development of the new energy industry in the future.

However, with the development of photovoltaic and its energy storage technology, a problem is deeply lingering in people’s minds: due to the rotation of the earth, the sun is changing from moment to moment in the four seasons of spring, summer, autumn and winter, every day of sunrise and sunset; As a result, the photovoltaic system cannot achieve direct sunlight rays on the receiving surface of the battery under the mode of fixed installation, which affects the utilization rate.

Combining these variables, energy storage technology has gradually become an important means to solve the volatility of photovoltaic power generation, and the “photovoltaic tracking system” has attracted more attention from the industry recently. Relevant data show that compared with the fixed installation of the photovoltaic system, by tracking the sun position, the use of photovoltaic tracking system, the power generation capacity of the photovoltaic system can be increased by 10%~35%, and the power generation cost can be reduced by 2%~5%.

Like “sunflowers”, they actively “chase” the sun to run photovoltaic and energy storage, which are natural “good friends” and have attracted much attention recently. Before starting to explore related topics, understanding of light storage systems is the foundation. Photovoltaic energy storage system is the combination of photovoltaic power generation system and energy storage battery system, mainly in the power grid work application to play a “load regulation, storage of electricity, with new energy access, make up for line loss, power compensation, improve power quality, isolated network operation, peak filling” and other applications. In popular terms, the energy storage power station can be compared to a reservoir, which can store the surplus water in the low period of electricity consumption, and then use it in the peak time, so as to reduce the waste of electric energy. In addition, energy storage power stations can reduce line losses and increase the service life of lines and equipment.

The new type of light storage power station equipped with photovoltaic tracking system is a successful practice under the guidance of many policy provisions. So, what are its advantages? Specifically, the photovoltaic tracking system can improve the solar energy utilization rate and the power generation efficiency of the photovoltaic power generation system, and there are many other advantages, such as: the use of tracking technology to allow the solar panel to adjust the Angle at any time, so that the power station is not vulnerable to the impact of disaster weather; It is conducive to more closely integrated with agricultural production, and can operate flexibly in mountainous, pond, wasteland and other environments; It can be installed in the complementary system of agricultural light and fishing light to achieve the complementarity of agriculture, fish pond and photovoltaic, and maximize the income of owners in the case of limited land resources. The emergence of photovoltaic tracking systems has ended the passive power generation of photovoltaic systems. Compared with the optical storage power station with ordinary fixed brackets, the new generation of optical storage power station can effectively increase the power system’s power generation by 15%-20%, while making the photovoltaic power generation curve smoother, reducing the cost of electricity, and bringing higher benefits. One of the most effective technical solutions for the high-quality development of energy in the future data changes can more intuitively see the fixed installation of photovoltaic systems and photovoltaic tracking systems compared. By tracking the sun’s orientation and using the photovoltaic tracking system, the power generation capacity of the photovoltaic system can be increased by 10% to 35% and the power generation cost can be reduced by 2% to 5%. At present, China’s photovoltaic tracking system is mainly used in: communication base station power generation, border guard station power generation, remote mountain power generation, roof, courtyard power generation, public utility lighting, enterprise factories and mines, industrial grid-connected power generation, off-grid photovoltaic power generation and other fields. For the current rapid development of the field of new energy vehicles, a new generation of optical storage power station can help the construction of urban rapid charging infrastructure, and supply power for new energy vehicle charging stations through energy storage and mains power at the peak of charging, solving the problem of insufficient capacity of some new energy vehicle charging stations