Solar racking is the “skeleton” of the entire power generation system, and its durability directly affects the service life of the power station as well as power generation efficiency. Many friends who are ready to install solar energy are most concerned about the question: how long can the bracket be used in the end? How to extend its service life? Today we will talk about this topic.
Generally speaking, the service life of qualified solar racking is about 20-25 years. Exactly how long to use depends on three factors: material, installation environment and routine maintenance. Now there are two main materials on the market: galvanized steel bracket and aluminum alloy bracket. Galvanized steel bracket high strength, affordable, normal use of 20 years no problem; aluminum alloy bracket is lighter, better corrosion resistance, the service life can reach more than 25 years.
To make the bracket weather resistant, construction measures are critical. Installation should pay attention to these: First, the foundation should be strong, the depth of the concrete foundation should be below the permafrost layer; Second, the bracket should be appropriate, so as not to cause the “duct effect”; Third, the diagonal bracing should be reasonable, especially windy areas to increase the number of diagonal bracing. Coastal areas are recommended to use typhoon-resistant design bracket, fixing bolts to use anti-loosening nuts.
Rustproof maintenance is also very important. Nowadays, most of the brackets are made with anti-rust treatment, but the rust layer will still appear in the sun and rain for a long time. It is recommended to check the surface of the bracket once every 2-3 years, and find that the paint or rust block should be repainted with anticorrosive paint in time. Normally, you can use a soft brush to clean up the dust and debris on the bracket to avoid the accumulation of water and rust. Pay special attention to the connection parts, these places are most likely to accumulate dust and water.
In addition, it is essential to check the fasteners regularly. Check all the bolts and nuts at least once a year and observe whether there is any loosening. It is even more important to check them in time after windy weather, and tighten the loose ones immediately. If you find that the bracket is deformed or the welds are cracked, it is important to get a professional to repair or replace it.
Remember a tip: put a rubber mat on the bottom of the bracket when installing it to protect it from moisture and reduce vibration wear and tear. With routine maintenance in place, it’s not a problem at all to get 25 years out of your solar racking. After all, the bracket only accounts for about 10% of the cost of the entire system, spend a little effort to maintain, in exchange for decades of stable income, this account how to calculate a good deal.
