Concentrated solar applications are not that much popular than Solar PV Plant in case of small scale users, What are the technical differences between those two applications...
The higher the solar concentration, the more accurately the sun has to be tracked. Concentrated solar therefore requires at least one axis tracking - preferably two axis. The first is fairly expensive and the second very expensive compared with the cost of a flat panel. Almost nobody steers a flat panel array - the increase in energy output per day simply isn't worth it. However, any concentrated system MUST be steered in some way, and this adds to the expense and complexity.
The main drawback of Solar concentration method is that it involves more installation cost than solar PV and also it is more location dependent. Further commercially those lenses are not popular.