Most common W/m^2 a solar panel can get before overheating?

[DrGreenback]

I was trying to figure out if I could concentrate solar rays with a spherical type mirror and put the solar panel on the focal point as opposed purchasing several panels to cover the area.

[Flynn76]

Using mirrors to increase your power density are only effective if they are driven by motors. This makes them more expensive than simply adding more solar panels.

[EnviroNut]

Hard to say, and the alternative isn

[Mosesbbhhh]

As the panel warms, the efficiency goes down.

[MarineLiner]

As the panel warms, the efficiency goes down.