|Flat plate collectors
||concentrating type collectors
| Absorber area is large.
||Absorber area is small.
|Concentration ratio is 1.
||Concentration ratio is high.
|It is uses both beam and diffuse radiation.
||It is uses mainly beam radiation.
|Application limited to low temperature uses suitable for all places as it can work in clear and cloudy days.
||High temperature application such as power generation suitable where there are more clear days in a year.
|Simple in maintenance.
||Difficult in maintenance.