Solar thermal technologies capture the sun's energy in the form of heat which then can be stored, cheaply and easily as heat. Conversely, Photovoltaics capture the sun's energy and immediately convert it to electricity. While this process is seamless, it is also reasonably inefficient and required batteries to store power for later use. This then translates into a technology that effectively produces power based on the sun's schedule, as opposed to when the demand cycle requires the power. 

NetPLUS Concepts uses an integrated thermal reservoir to store heat so that the generation "day" can be extended and fed back to the grid when needed. In addition, in times where the electric demand approaches peak, NetPLUS plants can then retrieve this stored heat to produce power on demand so as to help prevent brownouts or blackouts.