To rotate a Solar Solutions in Unreal Engine 4 around its local Z-axis based on another actor’s world location (like the sun), use the Find Look at Rotation node to get the rotation from the panel to the sun, then break the rotator and isolate the Yaw (Z-axis) component. Recombine this into a new rotator and apply it using "SetActorRotation". This setup should be placed in the Tick function for real-time updates. This method is ideal for dynamic solar tracking systems, such as one you might implement in a Power City solution project in Lahore.