As the solar energy industry continues to expand, so does the demand for durable, cost-effective, and long-lasting mounting materials. One standout solution gaining traction is ZAM-coated steel—an innovative material that is rapidly replacing traditional galvanized steel in many applications.

But what exactly is ZAM? And why are more solar companies and EPCs switching to it?

What Is ZAM?

ZAM stands for Zinc-Aluminum-Magnesium coated steel. It is a type of hot-dip alloy coating that consists of:

Zinc (Zn) – the primary corrosion-resistant element

Aluminum (Al) – enhances surface stability and oxidation resistance

Magnesium (Mg) – improves adhesion and provides self-healing properties

This combination creates a protective layer that performs far better than traditional hot-dip galvanizing (HDG) in many environments.

Top Reasons Customers Are Choosing ZAM

1. Superior Corrosion Resistance

ZAM offers 2 to 3 times better corrosion resistance compared to conventional HDG coatings, especially in:

Salt-spray environments (coastal, marine regions)

Industrial zones with high pollution

High-humidity climates

This longer service life translates directly into lower maintenance costs and longer-lasting installations.

2. Thinner Coating, Stronger Protection

Unlike HDG, which requires a thick zinc layer, ZAM can achieve better performance with thinner coatings (often 10–30μm). This results in:

Lighter structures

Better precision in component design and tolerance

Lower material usage, which is both cost-efficient and eco-friendly

3. Self-Healing Ability

Thanks to magnesium’s role in the alloy, ZAM-coated steel can self-heal scratches and cut edges, preventing rust from spreading—an advantage especially important during installation and transportation.

4. Excellent Weldability and Formability

ZAM-coated steel allows for easy:

Bending, punching, and rolling

Welding without extensive damage to the coating

This makes it ideal for complex solar racking designs and custom solutions.

5. Attractive Appearance

ZAM has a smooth, silvery finish, offering a clean, high-tech look that fits well in visible installations such as carports, fences, or rooftop solar systems in urban areas.

ZAM vs. HDG: A Quick Comparison

Conclusion

More and more solar developers are moving toward ZAM-coated steel because it offers long-term reliability, reduced total cost of ownership, and better performance in harsh environments. For projects requiring durability, efficiency, and a modern finish, ZAM is becoming the material of choice.

At Xiamen Topfence, we offer ZAM-based pv mounting systems tailored for both ground and rooftop PV projects. If you're planning a project that needs advanced protection with lasting value—ZAM is worth the upgrade.

In the solar mounting industry, carbon steel is widely used for its strength, durability, and cost-effectiveness. However, one common question arises: Will carbon steel rust? And if so, how can we prevent it? Let’s explore.

Does Carbon Steel Rust?

Yes, carbon steel is prone to rusting when exposed to moisture, oxygen, and other environmental elements. Unlike stainless steel or aluminum, carbon steel lacks sufficient corrosion resistance on its own. Over time, unprotected carbon steel will develop surface rust, which can compromise both the structural integrity and appearance of the solar mounting system.

Why Still Use Carbon Steel for Solar Structures?

Despite its susceptibility to rust, carbon steel remains popular in solar racking systems for several reasons:

High strength-to-weight ratio

Lower material cost compared to aluminum and stainless steel

Good load-bearing capacity for ground mount and large-scale projects

Easy fabrication and installation

To maximize its advantages, it’s crucial to apply effective anti-corrosion treatment.

Protection Methods for Carbon Steel Structures

Here are the most common and effective surface treatments used in the solar industry:

1. Hot-Dip Galvanizing (HDG)

A thick layer of zinc is applied by immersing steel in molten zinc. HDG offers:

Excellent long-term corrosion resistance

Self-healing capability at cut edges

Typical zinc coating thickness: 65μm to 85μm

Ideal for outdoor and coastal installations

2. Zinc-Aluminum-Magnesium (ZAM) Coating

ZAM is a newer type of coating offering:

Superior corrosion resistance (up to 2-3 times better than HDG in salt spray tests)

Thinner coating with better surface finish

High-performance protection in aggressive environments

3. Powder Coating or Epoxy Painting

These coatings offer both protection and aesthetics:

Applied electrostatically and cured under heat

Often used for custom colors or secondary protection

Requires good surface preparation to ensure adhesion

Additional Tips for Corrosion Prevention

Avoid water traps in the design (open profiles, drainage holes)

Use compatible fasteners (e.g., stainless bolts with HDG steel)

Apply touch-up spray (zinc-rich paint) on cut edges during installation

Choose suitable protection based on climate (desert, seaside, humid areas)

Conclusion

Yes, carbon steel can rust—but with the right surface treatment such as hot-dip galvanizing or ZAM coating, it becomes a reliable and long-lasting material for solar racking systems. When designed and protected properly, carbon steel structures can serve your solar project for 20+ years, even in harsh environments.

If you're looking for a durable, cost-efficient, and well-protected steel pv mounting system, carbon steel with advanced anti-corrosion treatment is a strong choice.

When planning a rooftop solar project, choosing the right mounting system is a key factor for long-term performance and safety. The two most common options are Ballasted (non-penetrating) and Penetrating solar mounting systems. Each offers distinct advantages and limitations depending on your roof type, structural capacity, and installation goals.

This article breaks down the pros and cons of both systems to help you make an informed decision.

What is a Ballasted Mounting System?

Ballasted mounting systems use weight—typically concrete blocks—to hold solar panels in place, without penetrating the roof surface. They are mostly used on flat roofs.

Pros:

No Roof Penetration: Ideal for maintaining the waterproof integrity of the roof.

Fast Installation: No drilling or sealing means faster setup and lower labor costs.

Easily Removable: Great for leased buildings or temporary installations.

Simplified Permitting: In some jurisdictions, non-penetrating systems face fewer regulatory requirements.

Cons:

Heavy Load: May not be suitable for roofs with limited load capacity.

Wind Sensitivity: Requires more ballast or additional anchoring in high-wind areas.

Limited Tilt Angles: Lower tilt angles can reduce solar efficiency.

Flat Roof Only: Not applicable for sloped or pitched roofs.

What is a Penetrating Mounting System?

Penetrating systems use bolts, screws, or anchors to secure the pv mounting structure directly into the roof or building substructure. They are suitable for flat or sloped roofs made from metal, tile, concrete, and more.

Pros:

Stronger Hold: Provides excellent wind resistance, especially for sloped or high-wind areas.

Lightweight System: No need for extra ballast, ideal for roofs with low weight tolerance.

Flexible Tilt Angles: Allows optimal panel positioning for higher energy output.

Broad Compatibility: Works with a wide range of roof types and materials.

Cons:

Roof Penetration Risk: Requires proper waterproofing to avoid leakage.

Longer Installation Time: Drilling and sealing add time and complexity.

Ongoing Maintenance: Roof seals should be inspected periodically.

May Require Engineering Approvals: Structural assessments may be needed depending on local codes.

Quick Comparison Table

Which One is Right for Your Project?

Choosing between ballasted and penetrating systems depends on several factors:

Roof type (flat or sloped?)

Structural load capacity

Local weather conditions (especially wind zones)

Installation timeline and budget

Waterproofing and long-term maintenance requirements

Final Thoughts

Both ballasted and penetrating mounting systems have their place in rooftop solar installations. At Xiamen TopFence Co., Ltd., we offer a wide range of solutions tailored to your specific project needs. Our business team can help you evaluate your site conditions and recommend the most cost-effective and reliable system.

Contact us today to discuss your rooftop solar project and receive a customized proposal!

Jet skis are built for thrill—fast acceleration, tight turns, and endless summer fun. But one often-overlooked component can make or break your experience: the battery. If you're still using a traditional lead-acid battery, it may be time to consider an upgrade that enhances both performance and reliability. Switching to a lithium battery can transform how your jet ski performs on and off the water.

Reduced Weight = Enhanced Agility

A key reason many riders make the switch is weight reduction. Lithium batteries are dramatically lighter than traditional ones, and that translates into a better power-to-weight ratio. The result? Faster takeoffs, smoother cornering, and more agile handling. Upgrading from older units like the YTX20-BS Motorcycle Battery to a lithium version can instantly lighten the load on your jet ski.

Dependable Starts, Every Time

Ever experienced a slow or failed start just before hitting the water? Lithium batteries deliver consistent power output and high cranking amps, even after long storage periods. Riders who choose a YTX30L-BS Battery Replacement in lithium form often report quick, confident starts—no more guessing whether the battery has enough juice.

Extended Lifespan = Lower Long-Term Costs

Although lithium batteries may come with a higher upfront price, they last far longer than standard batteries—often 2 to 4 times as long. That means fewer replacements, less hassle, and more value over time. The upgrade pays for itself in reliability and peace of mind.

Compact and Efficient

Lithium batteries don’t just weigh less—they're also more compact. This leaves more room in tight engine compartments and makes installation easier. It’s a subtle change that makes a big difference, especially for those who do their own maintenance or ride in challenging conditions.

Built for Modern Riders

Today's jet ski owners demand more: faster charging, cleaner energy, and zero maintenance. Lithium batteries deliver on all fronts. Whether you're cruising casually or racing over waves, lithium technology keeps up with your pace and performance goals.

The battery inside your jet ski might not be the flashiest part, but it's definitely one of the most important. Upgrading from a standard YTX20-BS Motorcycle Battery to a lithium-based YTX30L-BS Battery Replacement is a simple switch that unlocks a host of performance benefits. If you're ready to get the most from every ride, lithium is the way forward.

Outdoor solar street lamps in industrial parks are lighting devices specially designed for outdoor environments in industrial areas. Combining solar power generation technology, they feature energy conservation, environmental friendliness, and flexible installation.

They can meet the night lighting needs of areas such as park roads, surrounding factory areas, parking lots, and peripheral warehouses.

The following details are provided from aspects such as core composition, advantages and features, selection points, and maintenance suggestions:

1. Power Generation Component Core Composition

The working system of industrial park solar street lamps is composed of several key components to ensure stable lighting:

Solar panels: The core power generation component, usually made of single-crystal silicon or polycrystalline silicon, with single-crystal silicon having a higher conversion efficiency (18%-23%), suitable for areas with average lighting conditions; polycrystalline silicon has a lower cost and performs stably in strong light environments.

The panels need to have characteristics of resisting wind, hail, and high and low temperatures (-40°C to 70°C), adapting to the complex climate of industrial parks.

Energy storage batteries: Store the electricity generated during the day for use at night. Commonly used are lead-acid batteries (low cost, suitable for areas with small temperature differences) and lithium batteries (small in size, long lifespan, better low-temperature performance, recommended for industrial parks to prioritize), with capacity designed based on lighting duration, power requirements, and reserve for rainy days, generally needing to meet 3-7 days of continuous rainy lighting.

Ordering of lighting fixtures for industrial park LED light sources: The core of lighting, featuring low energy consumption, high brightness, and long lifespan (50,000 - 100,000 hours).

Industrial parks need to choose high color rendering index (Ra≥70) and color temperature 3000K - 5000K light sources (3000K warm white light is suitable for the surrounding living areas, 5000K cold white light is suitable for main roads and work areas, with higher recognition), and need to have anti-glare design to avoid affecting nighttime work safety.

Smart controllers: Responsible for coordinating the work of the solar panels, batteries, and light sources, with functions such as light control (automatically turns on at night), time control (setting lighting duration, such as 18:00 - 24:00 fully lit, reducing power after midnight for energy conservation), overcharge and overdischarge protection (to extend battery life), reverse connection protection. Some high-end models support remote monitoring (via GPRS/4G to check battery level and fault warnings).

Light poles and foundations: The light poles are mostly made of hot-dip galvanized steel pipes (durable and long-lasting, with a lifespan of 15-20 years), the height is selected based on the lighting area (main roads 8-12 meters, secondary roads 6-8 meters, factory edge 4-6 meters), with a wall thickness of ≥3mm to resist strong winds (must meet the local wind resistance level, such as ≥12 levels in coastal areas). The foundation is made of concrete pouring, the depth is determined based on the light pole height and geological conditions (generally 0.8-1.5 meters), to ensure stability against overturning.

2. Ordering of lighting fixtures for industrial park Core Advantages of Industrial Park Scenarios

Zero electricity cost and energy conservation: Completely relying on solar power generation, no need to connect to the power grid, especially suitable for areas in industrial parks far from the power grid (such as warehouse peripheries, raw material storage areas), long-term use can significantly reduce electricity costs and reduce cable laying costs.

Flexible installation:Not restricted by power grid lines, simply choose a location with sufficient sunlight (avoid being blocked by buildings or large trees), the installation period is short (a single lamp can be completed within 1-2 days), suitable for park expansion and temporary lighting needs.

Safe and reliable： Using low-voltage direct current power supply (12V/24V)， avoiding the risk of high-voltage electric shock， especially safer in humid and dusty industrial environments； no open flames， no fire hazards caused by aging power lines.

Low maintenance cost： Core components (batteries， light sources) have long lifespans (lithium batteries 5-8 years， LED light sources over 50，000 hours)， no frequent maintenance required， only need to clean the solar panels regularly (remove dust， bird droppings to ensure power generation efficiency). Environmental protection and policy alignment: Zero carbon emissions, in line with the national "dual carbon" policy. In some areas, there are subsidies for industrial energy-saving projects; and it can still operate normally during power outages, ensuring the safety of the park at night (such as security patrols, emergency passage lighting).

3.Selection Key Points (Based on the needs of industrial parks)

Lighting and power matching

The power of the solar panel and the capacity of the battery need to be selected based on the average annual sunshine duration in the local area: For example, in northern regions (average annual sunshine of 3-4 hours), if the power of the street lamps is 60W, a 18V 150W solar panel + 12V 100Ah lithium battery needs to be selected to ensure normal lighting for 3 consecutive rainy days.

Resistance to harsh environments

Wind resistance and earthquake resistance: The lamp pole needs to pass mechanical calculations to ensure stability in strong winds and earthquakes, and the connection components (such as flanges) need to be welded firmly and treated for anti-corrosion.

4.Industrial park outdoor solar street lamps Lighting demand matching

Lighting mode: It is recommended to adopt "intelligent dimming" (such as full brightness for the first 4 hours, and reduced to 50% power in the late night), taking into account both lighting needs and energy conservation, and extending battery life during rainy days.

After-sales should include: battery warranty of more than 5 years, lamp pole warranty of 10 years, and provide local maintenance services (industrial park equipment failures need to be responded to quickly to avoid affecting production safety).

5. Industrial park lighting for agricultural purposes Maintenance and Precautions

Regular cleaning: Clean the surface of the solar panel every 1-3 months (use a soft cloth or high-pressure water gun, avoid scratching the glass), especially in parks with heavy dust and frequent smog, it can increase 10%-30% of power generation.

Battery inspection: Check the connection lines of the battery every year for looseness or bulging (lead-acid batteries need to pay attention to the electrolyte level, lithium batteries do not need maintenance), and replace them in time to avoid affecting the overall lifespan.

Light source and controller: If there is a sudden drop in brightness or no light, first check if the controller is faulty (such as the over-discharge protection is triggered), then check if the light source is damaged (a single LED light bulb damage can be replaced separately, no need to replace the entire lamp);

Anti-obstruction: Regularly check if there are any new obstructions around the lamp pole (such as new buildings, trees growing), promptly clear or adjust the position of the lamp pole to ensure that the solar panel receives at least 4 hours of direct sunlight every day.

6.Market for ordering of industrial park street lamps Examples of applicable scenarios

Perimeter walls of the factory area, security patrol roads (6-8 meter lamp pole, 30-50W power, combined with surveillance camera lighting);

Raw materials / finished goods storage areas, parking lots (4-6 meter lamp pole, 50-80W power, illuminating vehicle loading and unloading, goods counting areas);

Emergency passages, fire passages (low-power constant lighting mode to ensure basic lighting during night evacuation).

As digital services continue to shape the way we work, live, and communicate, data centers have become the core infrastructure behind this transformation. Whether supporting cloud platforms, artificial intelligence, online transactions, or real-time communications, these facilities must operate with maximum reliability. In such a context, ensuring uninterrupted power supply is essential—not optional.

Even brief power outages can lead to service disruption, data loss, or hardware damage. That’s why having a robust, integrated backup power system is fundamental to maintaining business continuity and operational stability.

Reliability Starts with Redundancy 
In a mission-critical environment like a data center, there’s no room for single points of failure. That’s why redundancy is built into modern power infrastructure. Configurations such as N+1 or 2N ensure that if one power component fails or needs maintenance, a backup is immediately available to keep operations running without interruption.
However, redundancy is only effective when it’s part of a smart and responsive system. Backup components like generators, UPS units, and transfer switches must work together seamlessly. When managed by intelligent controllers and power management systems, they can distribute loads efficiently and switch power sources quickly—ensuring smooth transitions during unexpected events.

Speed Makes the Difference
The speed at which power transfers from utility to backup can have a big impact. Any delay, even just a few seconds, may cause dropped connections or data inconsistencies. That’s why fast-switching automatic transfer switches (ATS) are essential. With high-speed detection and response, modern ATS systems can handle the switchover with minimal or no impact on equipment.
Technologies such as closed-transition switching offer even greater protection by transferring the load between power sources without any interruption at all—ideal for sensitive systems that require constant uptime.

Remote Monitoring Ensures Control
Today’s data centers often operate across multiple sites and rely on remote teams. Having real-time visibility into power systems is crucial. Modern monitoring tools allow operators to track equipment status, fuel levels, alerts, and performance metrics from anywhere, enabling fast decision-making and proactive maintenance planning.
Integration with building management systems (BMS), DCIM tools, and enterprise software adds another layer of efficiency, bringing everything together in a centralized dashboard.

Built to Scale with Future Needs
As demand for digital services increases, so do the energy requirements of data centers. A well-designed backup power system should be able to scale accordingly. Modular generators, flexible controllers, and scalable monitoring platforms make it possible to grow power capacity without compromising reliability.
Cost-efficiency also matters. Intelligent load balancing, automated testing, and remote diagnostics help reduce operating costs and extend the life of power equipment—all while supporting long-term sustainability goals.

Conclusion
 In today’s always-on world, backup power is not just a safeguard—it’s a core part of a data center’s design philosophy. With the right systems in place, operators can minimize risk, maintain uptime, and protect critical data.
 At Coolnet, we understand the importance of stable power infrastructure. Our solutions are designed to deliver reliability, flexibility, and performance—helping data centers meet the demands of a connected future with confidence.

Are you tired of high electricity bills and looking for a sustainable solution? Look no further than a balcony PV system! This innovative technology allows you to harness the power of the sun and generate your own electricity, all from the comfort of your own balcony.

With a balcony PV system, you can enjoy a range of benefits, including:

Cost savings: By generating your own electricity, you can significantly reduce your monthly electricity bills. Plus, with government incentives and tax credits, you can save even more money.

Sustainability: By using renewable energy, you can reduce your carbon footprint and contribute to a more sustainable future.

Convenience: A balcony PV system is easy to install and requires minimal maintenance. Plus, with a battery backup system, you can ensure that you have power even during a blackout.

Increased property value: A balcony PV system can increase the value of your property, making it a smart investment for the future.

But don't just take our word for it - check out these stunning pictures of balcony PV systems in action:

As you can see, a balcony PV system is not only practical, but it can also be a stylish addition to your home.

So what are you waiting for? Contact us today to learn more about how a balcony PV system can benefit you and your home. Let us help you take the first step towards a more sustainable and cost-effective future.