China Dongguan TOMUU Actuator Technology Co., Ltd. latest company blog about Fixed Tilt and Solar Tracking Systems for Different PV Project Requirements

In PV projects, both fixed tilt structures and solar tracking systems are widely used solutions today.

Fixed tilt systems usually offer a simpler structure and lower system cost, while solar tracking systems allow panels to follow the sun throughout the day to improve energy yield. Depending on sunlight conditions and project location, tracking systems can often increase power generation by around 20%, and in some high-irradiance areas, the gain may approach 30%.

This is why more utility-scale PV projects are now evaluating tracking systems as part of their long-term energy strategy.

However, the decision is not only about higher energy output.

Factors such as:

· local sunlight conditions

· land cost

· maintenance resources

· project budget

· return on investment expectations

can all influence the final system design.

For some projects, a fixed tilt structure is already sufficient. For others, improving energy yield per installation area may be more important.

Fixed Tilt and Solar Tracking Systems for Different PV Project Requirements

Drive Performance Matters in Solar Tracking Systems

In a solar tracking system, the actuator is responsible for adjusting panel angles, but it also affects the stability of the tracker structure itself.

Because of this, many projects pay close attention to:

· dynamic load capacity

· static load capacity

· IP protection rating

· long stroke stability

· long-term outdoor reliability

Especially in windy regions, higher static load capacity can help maintain panel position under wind load conditions, improving structural stability when the system is not actively moving.

For outdoor PV applications, IP66 protection and corrosion resistance are also commonly considered during actuator selection.

U20G: Heavy Load Linear Actuator for Solar Tracker Applications

For heavy-duty solar tracker systems, U20G Heavy Load Linear Actuator is designed for high-load solar tracking applications, offering up to 43,000N dynamic load and up to 230kN static load capacity.

The new U20G series uses IP66 protection as the standard configuration, upgraded from the previous IP65 design.
For projects with higher sealing requirements, protection levels up to IP68 are also available.

Mechanical Linkage Is Still Common in Some Tracker Designs

Some solar tracker systems use mechanical linkage so that one actuator can drive multiple rows together.

Compared with fully independent drive structures, this approach can reduce actuator quantity and help lower overall system cost. In some projects, it is also a practical way to keep the tracker structure relatively simple.

Depending on the project layout and tracking requirements, mechanical linkage systems are still commonly used in many solar tracker applications today.

TOMUU Still Supports Manual Adjustment Solutions

Not every PV project requires full-time solar tracking.

In some agricultural PV systems or seasonal-angle installations, panel angles may only need to be adjusted a few times per year. In these cases, a manual adjustment structure can be a simpler and lower-cost option.

For this type of application,U18C Manual Linear Actuator is commonly used for manual angle adjustment without additional motors or control systems.

For projects that focus more on cost control and simpler maintenance, this type of solution is still widely used.

Different PV Projects Have Different Priorities

Fixed tilt systems, solar tracking systems, and manual adjustment structures all serve different types of PV projects.

For solar tracking applications, components such as linear actuators and mechanical linkage systems are part of the drive structure, helping the system adjust panel angles based on the project design.

Some projects focus more on lower system cost, while others pay more attention to long-term energy yield and land efficiency.

In practice, the right solution usually depends on the project itself, including installation conditions, budget, maintenance expectations, and overall system goals.

· Why High Static Load Matters for Solar Tracker Actuators

· Heavy Duty Linear Actuator for Solar Tracking Systems | U20G (43,000N)

· Solar Tracker Actuators at SNEC 2026

· TOMUU U18 Manual Linear Actuator: Economical Solution to Maximize North-South Solar Plant Efficiency

Discuss Your Solar Tracker Project

Different PV projects often require different drive and mounting approaches.

If you are evaluating:

· electric tracking systems

· mechanical linkage structures

· manual adjustment solutions

· heavy load linear actuators

the TOMUU engineering team can support application discussion based on your project requirements.