Photovoltaic system in northern climes to 5.61 kWh/m²/day in the sunniest regions. For large systems, the energy gained by using tracking systems can outweigh the added complexity (trackers can increase efficiency by 30% or more). For very large systems, the added maintenance of tracking is a substantial detriment. Tracking is not required for flat panel and low-concentration photovoltaic systems. For high-concentration photovoltaic systems, dual axis tracking is a necessity. Pricing trends affect the balance between adding more stationary solar panels versus having fewer panels that track. When solar panel prices drop, trackers become a less attractive option. Systems designed to deliver alternating
Shigatse Photovoltaic Power Plant by LDK Solar (60 MW), the other by Chaorisolar (10 MW). Shigatse Photovoltaic Power Plant The Shigatse Photovoltaic Power Plant () is located 3 km northwest of Shigatse, the second largest city in Tibet, China. It was connected to the grid in July 2011. The plant sits in the industrial photovoltaic area of Shigatse about 3 km northwest of the city in the Xigaze Prefecture, at an altitude of 3895 meters. According to Suntech CEO, “with intense sunlight and cool temperatures, Tibet is extremely well-suited for the utilisation of advanced photovoltaic technology”. Tibet has abundant solar energy with more than