SCE&G net metering customer installs solar tracker to improve the efficiency of his solar panels. A solar tracker is a device that uses the position of the sun and can track it throughout the day. By doing so the panels can produce up to about 30% more power. An SCE&G smart meter captures the power the panels generate. Data shows the solar tracker is producing about 20 megawatts per year, which is about enough to power Williams Brice Stadium on a game day.