For a junior design class, three engineering students built a solar tracking array. The device finds and tracks the sun to keep solar panels optimally aligned with it as the Earth rotates. North Carolina is a leading state for solar panel installations and such devices can boost the amount of energy generated. That’s because panels are most efficient when precisely aligned with the sun. Engineering students Roberto Estrada, Stephanie Chavez Cardenas and Zachary Kielbasa said they modeled their solar tracking device after the Parker Solar Probe NASA launched in 2018 to observe the sun.