I'm working on a ground mount solar array, but I'm not too confident about manually adjusting it since each panel weighs about 300kg. I'm considering a single-axis control system that could automatically adjust the setup based on a light sensor and anemometer throughout the year (it's a south-facing array with a north/south axis). My plan is to connect two actuators to each array to minimize flex in the panels, but I need them to operate at the same speed (synchronized). Does anyone have recommendations for products that could handle this?
2 Answers
I've actually used a couple of these actuators that I found on Amazon, and they've worked pretty well for me! If you're worried about the weight of the panels, consider using an electric trailer tongue jack; you can modify the switch to fit your needs. I recommend the one from VEVOR; it's been reliable. Also, I agree with cmacridge's controller suggestion – the dual-axis one I have is excellent!
I've been checking out some tracker systems similar to what you're thinking of. I found these options that mostly seem set up for a single actuator, but they do have dual-axis versions with two actuators. Just a heads up, I'm not sure how they'd perform if they're pre-programmed for east/west rather than north/south.
I get what you're saying about flex in the array. Using multiple actuators definitely helps, but synchronization is crucial to avoid one actuator taking on too much load. I currently use a scissor jack, and it has similar issues. Just something to keep in mind as you decide!