How should photovoltaic power plants deal with earthquake disasters?

        May 12, 2021 is the 13th anniversary of the Wenchuan earthquake. At 2:28 pm on May 12, 2008, a strong earthquake with a magnitude of 8.0 on the Richter scale occurred in Sichuan Province. The epicenter was located in Wenchuan County, Aba Prefecture. The earthquake caused heavy casualties, with more than 80,000 people dead or missing. The earthquake also caused huge economic losses. The scene of the ruins in the wind and rain, the helpless residents, soldiers, and the masses of the people courageously rescued the disaster, haunting the hearts of the people across the country.

        After decades of efforts, Wenchuan and other disaster areas have been reconstructed on a large scale. Taking this as a reference, the seismic capacity of new buildings in China has also been significantly improved, and the possibility of collapsing and injuring people has been greatly reduced. Under the call of the “30.60″ double carbon target, more and more photovoltaic power station projects are taking root all over the country. Some areas need to build photovoltaic power stations in the earthquake zone. In order to avoid damage to the power station and serious casualties caused by the earthquake, it is necessary to prepare for earthquake prevention and post earthquake response in advance.

What to do when a photovoltaic power plant encounters an earthquake?

        1. If the solar panels of the photovoltaic power station are damaged in the earthquake, they are mixed with the rubble of the house, but they still have certain functions. When the sun shines on the solar panels, they may generate electricity. If they are touched by bare hands without any protective measures, they may get electric shock. Therefore, insulating gloves should be worn when handling them.

        2. Unplug or cut off the connected cables, so that the power station is in a power-off state. Cover the battery board with a blue tarp or cardboard, or place the battery board upside down to avoid exposure to sunlight. If possible, wrap the exposed copper wire in the cable section with plastic tape, etc.

        3. Since the solar panels are composed of semi-strengthened glass, battery cells, metal frames, transparent resin, white resin boards, wiring materials, resin boxes and other parts, the damaged solar panels must be transported to the abandoned place. For safety reasons, required a hammer to break the glass; to deal with damaged panels, it is best to contact the sales contractor to take corresponding countermeasures.

        4. Even after sunset or when the solar panel is not irradiated by the sun at night, it should be handled in the same way as when there is solar irradiation to avoid accidents.

How to build photovoltaic power plants in earthquake-prone areas?

        1. Pay attention to the site selection. If possible, try to build on the open space. For example, photovoltaic power plants built with agriculture and light complementary, fishing and light complementary, and animal husbandry and light complementary models are located in places with few people and few buildings. Once an earthquake occurs, personnel It is easy to evacuate, and it is also easier to handle and rebuild the photovoltaic power station after an earthquake. If it is a photovoltaic power station built on the roof, the quality of the supporting building needs to be considered, and the design mainly considers the support capacity and the prevention of risks such as earthquakes.

        2. From the perspective of the selection of photovoltaic modules, we can consider choosing modules with high impact resistance and seismic resistance for some special climate and environmental areas, so as to improve the ability to withstand special conditions. From the perspective of power station design, while weighing the cost of photovoltaic power station and the benefits of power generation, the strength design requirements of photovoltaic brackets and module compacts can be appropriately increased.

        3. Choose a reliable design party and construction party, strictly control the construction quality, lay a good foundation, strictly control the quality of components, brackets, inverters and other products to prevent cutting corners. Pay attention to the operation and maintenance of photovoltaic power plants, and troubleshoot faults and hidden dangers in time.

        4. Purchase insurance for the photovoltaic power station in time. Photovoltaic insurance is divided into three categories, property insurance, liability insurance, and quality insurance. In order to reduce the inevitable losses caused by natural disasters, property insurance is generally chosen.

        Since earthquakes are highly destructive to ground facilities, after an earthquake, there will often be water and power outages and communication failures. In addition, due to the damage to transportation facilities caused by the earthquake, the transportation of materials was blocked, and the maintenance of power and communication systems has also become a problem. At this time, photovoltaic equipment can provide power supply for the disaster area after the earthquake, ensure the smooth use of people’s communication and lighting equipment, and can also play an extremely important role in the post-disaster relief process. Therefore, if necessary, some small photovoltaic equipment can be prepared to deal with accidental disasters.