I got some specs of my PV panel, it is 150 W rated, but what I need someone to explain are some other specs.
It says:
Voltage open circuit (Voc) = 23,00 V
Voltage on max. power (Vmp) = 17,80 V
Current short circuit (Isc) = 9,9 A
Current of max power (Imp) = 8,42 A
How do I get 150 W?
Vmp x Imp = 17,80 x 8,42 = 149,87 Watts
I guess that's it.
Is "open circuit voltage" on PV panel similar with the one in wind generator, when it's not connected to batteries?
Also, do I need to connect PV cells to get open circuit voltage, if I want to build something like this at home? Or to get voltage on max. power?
The specs also rates cells to be 165x165mm, and 0,61 V each.
I don't know the manufacturer.
Thanks!