Create a circular logo for a research institute named GMGETC, focusing on power electronics and grid-connected inverters. The design should be clean, youthful, and tech-oriented, featuring simple lines and color blocks. The base of the logo should resemble a printed circuit board (PCB) in green. Incorporate simplified and cute elements representing solar panels, wind turbines, electric cars, and power transmission towers. These elements should be outlined in gold with white fill, mimicking PCB circuit lines. The overall design should be neat and not cluttered.