| 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. |
