Recently, a client from Thailand asked an interesting question during our discussion about solar mounting systems “How thick should the galvanization and pipe wall of a ground screw be to ensure a long service life?” This is actually a very important topic for solar ground mounting projects, especially in regions with different soil conditions and climates. Here are a few key factors that determine the durability of solar ground screws. 1. Hot-Dip Galvanization Thickness For solar mounting ground screws, hot-dip galvanization is essential to prevent corrosion. Typical standards in the industry: ≥ 80 μm – Standard protection for most normal environments ≥ 100 μm – Recommended for coastal or humid areas ≥ 120 μm – Suitable for highly corrosive environments In general, 80–100 μm galvanization can provide 25–40 years (or even longer) of corrosion protection under normal soil conditions. However, the actual lifespan also depends heavily on soil chemistry and drainage conditions. 2. Pipe Wall Thickness of the Ground Screw The wall thickness of the steel pipe affects both structural strength and long-term durability. Common specifications used in solar projects is diameter typical wall Thickness60 mm2.5–3.5 mm76 mm3.0–4.0 mm89 mm3.5–4.5 mm For large solar plants or areas with high wind loads, thicker walls are usually recommended. 3. Soil Conditions Matter The soil environment can significantly influence corrosion speed. Normal soil (neutral pH) ： Standard galvanization usually works well. Clay or wet soil： Higher galvanization thickness recommended. Salty or coastal soil ： Thicker galvanization + larger safety factor. Rocky soil : Focus more on structural strength than corrosion. 4. Installation and Drainage Even a well-designed ground screw can fail prematurely if installation conditions are poor. Key recommendations is ● Avoid long-term water accumulation. ● Ensure proper drainage around the foundation. ● Select the correct screw length based on soil conditions. ● Follow installation torque recommendations. 5. Why Ground Screws Are Widely Used in Solar Projects Compared with traditional concrete foundations, ground screws offer several advantages: ● Faster installation. ● No concrete curing time. ● Environmentally friendly. ● Easy removal and recycling. ● Suitable for most soil types. This is why they are increasingly popular in utility-scale solar farms and commercial PV installations. The service life of a solar ground screw is not determined by a single factor. It depends on galvanization thickness, pipe wall thickness, soil conditions, and proper installation.In our recent solar projects, we typically recommend 80–100μm hot-dip galvanization for ground screws, depending on the soil environment and project lifetime requirements.Proper material selection and corrosion protection are essential to ensure that the foundation can match the 25+ year lifespan of a solar power plant. Feel Free to contact us if you want to have your suitable ground screw. ...

Corigy is an outstanding manufacturer of photovoltaic mounting structures.It boasts an elite engineering and design team. From the selection of solar mounting solutions to detailed drawing design, we fully take into account factors such as cost efficiency, structural safety, and ease of installation of solar mounting for our customers. While ensuring the structural safety of the mounting system, Corigy strives to provide customers with the most cost-effective solar mounting solutions. Even more commendably, our engineer usually gives some professional suggestions on safety of the solar mounting structures, these suggestions are so valuable and indispensable for a project. We have a successful case of hot-dop galvanizing solar mounting where we helped a customer to reduce the mounting costs from $90/KW to $45/KW. In the customer’s original design, many rectangular tubes were used for diagonal bracings and beams. Our engineers simplified the design by adopting Cee steel for beams and diagonal bracings, significantly cutting costs. As the labor cost in the country is very expensive, so we suggested customer to use foundation of piles ramming into the ground. The type of piles in this project are U steel instead of normal Cee steel. This is because the maximum thickness of Cee steel is not more than 3 mm. But 3 mm thickness Cee steel can not withstand the impacting force generated from large pile driver machine, so we used U shape steel with thickness from 6-8 mm. We suggested customer to use Lock Nut for the bolts in one special part, as there is a small gap between two U shape steel, so there is no friction here. The screws in this part are prone to loosening and falling off under the gravity of the panels and wind speed over time. If the screws  get loosening or falling off, the solar mounting structure won't be stable. So our engineer suggested to use the lock nut. This kind of nut is embedded with a nylon ring; when the bolt is screwed in, the nylon deforms under compression, gripping the threads to provide constant friction. We are very happy that customer accepted all of our suggestions. Order is under processing now. Except this case , we also provide customers with pre-assembled components to improve on-site installation efficiency and lower labor costs. Our extensive product range: We manufacture mounting systems for ground-mounted, rooftop, and carport solar installations. We do both aluminum and hot-dip galvanized steel ground mounting, metal sheet roof and flat roof. Our carport design Corigy offers two designs for solar carports: the Y-type carport and the single-column carport. Both types combine practicality with an attractive appearance. Corigy designs the carport structure in accordance with the customer’s requirements, including maximum wind speed, snow load, and panel dimensions. The primary material is hot-dip galvanized Q235B steel. Each parking space generally has a width of 3 meters and a depth of 5 meters. We can also de...

As the festive lanterns continue to glow and the spirit of the New Year fills the air, we at Corigy Solar are thrilled to announce the official start of our operations for the New Year! We hope you and your loved ones enjoyed a wonderful holiday season filled with joy and prosperity. As we step into this new chapter, we are energized and ready to support your projects with our high-quality solar mounting solutions. At Corigy Solar , we remain committed to driving the global energy transition with reliable and innovative products: Aluminum Alloy Ground Mounting Systems Lightweight, durable, and corrosion-resistant—perfect for large-scale solar farms. Zinc-Aluminum-Magnesium Ground Mounts Superior strength and anti-corrosion performance for long-term reliability in challenging environments. Metal Roof Mounting Systems Engineered for stability and quick installation on iron sheet roofs. Tile Roof Mounting Systems Designed to seamlessly integrate with clay and concrete tile roofs while ensuring safety and aesthetics. We also have mounting structure for balcony, solar fence, and other solar mounting accessories. As we begin this New Year, we extend our warmest wishes to our partners and customers around the world. May this year bring you success, growth, and abundant sunshine! Let’s harness the power of the sun together—welcome to a bright and productive year ahead!

To Our Loyal Customers: A sincere thank you for your continued trust and partnership over the years. Your support has been the driving force behind our commitment to quality and innovation. We look forward to further strengthening our collaboration in the coming year. To Our Future Partners: If you are looking for reliable, high-performance solar mounting solutions, we welcome the opportunity to work with you. Our expertise spans residential, commercial, and utility-scale projects, and we pride ourselves on delivering durable, cost-effective, and easy-to-install photovoltaic mounting systems.

Corigy Solar, a leading manufacturer of high-performance photovoltaic mounting solutions, today announced the successful completion and delivery of a 50MW ground-mount solar system utilizing its next-generation Zinc-Aluminum-Magnesium (Zn-Al-Mg) coated steel. This major project underscores Corigy Solar's commitment to providing the global solar industry with structures engineered for extreme durability and optimized lifetime value. The newly supplied 50MW installation leverages Corigy Solar's proprietary Zn-Al-Mg coating technology, a significant advancement over traditional galvanized steel. This innovative alloy formulation is designed to meet the rigorous demands of large-scale solar farms, particularly in challenging environments. Engineered to far exceed the performance of conventional hot-dip galvanized steel, this advanced material offers: 1. Exceptional Long-Term Corrosion Resistance: Providing robust protection against harsh environmental stressors, including coastal salinity, industrial pollutants, and high humidity, ensuring structural integrity for decades. 2. Self-Healing Protection: The unique alloy composition offers sacrificial protection at cut edges and minor scratches, effectively preventing red rust formation—a critical advantage for long-term field performance and reduced maintenance. 3. Optimized Lifetime Cost: By dramatically extending the service life of the mounting structure to match or exceed that of the PV modules, our Zn-Al-Mg systems significantly reduce the Levelized Cost of Energy (LCOE) and total cost of ownership for project developers and investors. Designed for durability and efficiency, the ground-mount system features: 1. High-strength, lightweight Zn-Al-Mg coated steel profiles. 2. Streamlined, tool-free installation designs to reduce labor costs and deployment time. 3. Full compliance with international wind and snow load standards. 4. Excellent sustainability credentials, using fully recyclable materials with a minimized environmental footprint. CORIGY SOLAR more professional and flexible solar mounting solutions waiting for you here! CONTACT US! Above news from CORIGY SOLAR Sales & Marketing department Phone: +0086-592-6883200 E-mail: sales@corigy.com

This Christmas, as we celebrate hope, joy, and new beginnings, we extend our warmest wishes to our valued partners and clients around the world. May your holidays be bright, peaceful, and full of light. Just as the star guided the way, let us guide you toward a more sustainable and profitable future. In a season of giving, the greatest gift we can offer our planet is a commitment to clean energy.  While others focus on the panels, we provide the critical solar panel mounting structure that ensures your projects stand the test of time and nature. Our Christmas promise to you is unwavering performance, delivered through: Engineered for Endurance: Built from premium, corrosion-resistant materials, hot dip galavizied steel, Zn-Al-Mg coated steel or alumnum, our pv module mounting bracket withstand the harshest environments—from heavy snow loads to fierce winds—guaranteeing peace of mind for decades. Designed for Efficiency & Ease: Our streamlined designs enable faster installation, reducing labor costs and accelerating your project ROI. Optimized for various rooftops and terrains, they ensure your panels capture every ray of sunlight. The Gift of Certainty: In a world of change, we deliver consistency. Rigorous quality control and expert technical support are our standard, making us the trusted partner you can rely on, season after season. This holiday, invest in a solution that keeps on giving. Choose Corigy solar mounting systems—the solid foundation for a brighter, greener, and more prosperous new year. From all of us at Corigy Solar, we wish you a Merry Christmas and a shining New Year filled with success and sustainable growth. Ready to build a resilient future? Contact our team today for a quote.