PV Watts kWh production

[electro7]

Hi,

I was wondering if I should be entering the STC measurement into PV Watts to find the amount of kWh produced? Or is it the PTC or CEC of the modules I should be entering? Thanks for the help.

Danny

 

[GoldDigger]

Hi,

I was wondering if I should be entering the STC measurement into PV Watts to find the amount of kWh produced? Or is it the PTC or CEC of the modules I should be entering? Thanks for the help.

Danny

I think that you should enter the STC value and PVWatts will do the necessary approximate derating for actual conditions.

 

[SolarPro]

Correct. PVWatts is design to use nameplate power ratings (kWstc):

http://www.nrel.gov/rredc/pvwatts/changing_parameters.html#dc_rating

 

[electro7]

Awesome, I did not see that page. Thanks a bunch.