This course introduces principles and technologies for converting solar into heat, solar into electricity, and heat into electricity via solid-state devices. The first part of the course discusses solar collecting and concentrating technology, photovoltaic cells, solar thermal conversion, and thermal energy storage. The second part of the course discusses photovoltaic systems. Solar thermophotovoltaics and solar thermoelectrics will be introduced and reviewed. The last part of this course will be focused on the modeling techniques of solar energy conversion, followed by the economic analysis of the solar energy conversion techniques, and the wind energy resulting from the solar energy. The latest technologies on energy conversion technologies will be introduced as well.