Single vs. Dual-Axis Trackers:
How to Choose
This new trend was born largely out of the experience of installing many types of trackers in Spain and other high-incentive markets during the past two years.
The choice of what type of tracker to use is now a decision about installation cost and maintenance over time, not just energy yield increases. Often times, the additional net energy yield a dual-axis system earns over a single-axis system is lost to additional costs of installations, permitting and on-going maintenance. A dual-axis system can require much more costly site prep, engineering and equipment that may need special permits to use on site. In addition, dual-axis trackers have more moving parts than a single-axis tracker – certainly more than RayTracker GC.
![Single-axis trackers and fixed tilt have the same risk rating and cost of debt for projects. Dual-axis trackers are scored as a higher risk. Stick with single-axis. The added complexity [of dual-axis] is not worth the risk. - VP, Energy Investments, Leading Bank with over $2B of assets in Renewables](/images/track/quote_choose2.gif)
Additional things to consider:
- Nearly all performance advantage is lost if your goal is equivalent land usage for dual-axis trackers.
- Typical single-axis trackers are half the height, at most, of typical dual-axis trackers. This reduces site design and foundation costs of single-axis trackers.
- RayTracker GC can be installed without using any concrete in many circumstances. Most dual-axis trackers require a substantial concrete foundation.
We would be happy to help you better understand the benefits of single-axis trackers and how they can increase the ROI of your solar project. If you would like to speak with a RayTracker sales person, please
contact us, or
request a quote.
