There's a lot more panels installed on the field now. When done this first solar farm will stretch across 100 acres and generate 20 MW. Apple is also building another 20 MW solar farm near by. The solar panels and trackers come from California's SunPower. SunPower makes higher efficiency solar panels, which are placed on trackers that follow the sun throughout the day.
Take a look at some photos below taken by WCNC-TV.