A study by NREL titled "Solar Carport Projects: Lessons Learned from California and Beyond" (2015) provides a detailed analysis of the benefits of dual axis solar trackers for carports. The study compares the energy production of fixed and dual axis tracking systems in carport installations in California and found that the dual axis tracking systems produced up to 40% more electricity annually compared to fixed systems. The study also highlights the flexibility and adaptability of dual axis tracking systems to varying weather conditions, which can result in higher energy production.