Title: Demystifying Solar Actuation Systems: The Underrated Heroes in Solar Power Generation
Hello, solar enthusiasts! You know we love talking about everything solar, from individual solar panels for your home to extensive solar arrays for home projects. Today, let’s dive into a topic that is often overlooked but constitutes a huge part of solar power generation: The Actuation System.
Actuation systems are the backbone of utility-scale solar trackers; they’re the driving force behind the tracker’s movement and have a significant influence on project performance. But do you know how to identify an efficient actuation system in your next solar project?
Understanding torque, the force causing rotation, is essential. Torque doesn’t come as a one-size-fits-all in actuation systems. It requires meticulous consideration of the project’s structural requirements and the torque demands the actuation system will face throughout its lifespan.
Take this theoretical example: imagine a solar array weighing 15,000 lb, strapped to a robust steel tube. The actuator needs sufficient torque to rotate, and, critically, hold this hefty array in place against wind or when tilted, which is labeled in kilonewtons (kN) – one kN representing about 224.8 pounds of force.
Through various daily operations, like adjusting module tilt for optimal energy output, responding to extreme weather conditions, or maintenance actions like cleaning or equipment inspection, solar trackers apply considerable force, which can measure up to hundreds of kilonewtons or tens of thousands of pounds of force.
Now, this poses an important question: Can your solar actuation system withstand this constantly evolving stress over a lifespan of 25+ years without faltering? It’s a challenging question but essential in preventing potential system failure too early in the expected lifetime of a solar project.
The answer lies in learning about the specifics of your actuation system. And no, this doesn’t mean casually glancing at a product spec sheet and relying on a single number it provides. You need a thorough understanding of the system, backed by specific, solar-related testing, and not just generic engineering evaluations conducted under different conditions.
Not only should you consider the static and dynamic testing results of actuation systems, but it is also essential to look into accelerated life testing, which uncovers potential failure points faster than regular field testing.
In conclusion, your solar actuation system should be optimized to your specific needs, whether you’re a tracker manufacturer, an EPC, or a developer. Make sure that your supplier not only understands solar applications but also designs drives specifically for solar infrastructure. Your actuation system is more than a spec sheet or a single number; it’s an understanding of the system that keeps your solar dreams a reality.
Stay tuned for more in-depth solar discussions, and remember: every solar panel installed on a home or a solar array built for a large-scale project takes us a step closer to a greener, cleaner future. Shine on!
Original Articlehttps://pv-magazine-usa.com/2024/02/13/solar-actuators-the-brains-and-brawn-behind-solar-trackers/
