What does maximum effiency mean in solar panels??

[JayGuevara]

Guys,

I've been offered these panels at a crazy price. Pic below.

Says the max effiency is 17.5%

Is that good or bad?

Jay.

 

[nosys70]

that is average.
it allows you to get the max power from your location for a particular time (usually around 1000W/m2)
and get an idea of the power you will get from the panel.
this number is very misleading since it is a lab number, in very precise condition of light and temperature and probably applies only to new panels.
By nature, there are big chances you will always be under.
obviously , whatever efficiency a panel is, as they are sold by power (100, 250 300Watts) it is not really important.
a 12% efficiency just means a bigger panel than a 17% one, for same power.

 

[Forbisher]

I've been offered these panels at a crazy price.

What's the crazy price?

 

[RCinFLA]

Don't see 62 v single panels too often.

 

[JayGuevara]

What's the crazy price?

£275 (around $350) for 4 panels.

 

[JayGuevara]

Don't see 62 v single panels too often.

62v? Not what it says on back of panels?