The Hourly PV Performance Data



About The Hourly PV Performance Data

The values reported for AC power in the PVWATTS Hourly Performance Data Output are associated with the preceding
hour; i.e., the hour ending at the time indicated. Time is reported as Local Standard Time (LST). Daylight Savings Time
(DST) is not used.

The Hourly PV Perfromance Data output has the following format:


Example PVWATTS Hourly Performance Data Output, Header and Data:

 

PVWATTS: Hourly PV Performance Data

DODGE_CITY, KS     37.77° N     99.97° W     787 m

Array Type: Fixed Tilt     Array Tilt : 37.8°     Array Azimuth: 180.0°     AC Rating: 4.0 kW

Month, Day, Hour, AC Power (W)
1971, 1, 1, 01:00, 0
1971, 1, 1, 02:00, 0
1971, 1, 1, 03:00, 0
1971, 1, 1, 04:00, 0
1971, 1, 1, 05:00, 0
1971, 1, 1, 06:00, 0
1971, 1, 1, 07:00, 0
1971, 1, 1, 08:00, 0
1971, 1, 1, 09:00, 848
1971, 1, 1, 10:00, 1949
1971, 1, 1, 11:00, 1994
1971, 1, 1, 12:00, 2927
1971, 1, 1, 13:00, 3222
1971, 1, 1, 14:00, 3143
1971, 1, 1, 15:00, 1323
1971, 1, 1, 16:00, 1582
1971, 1, 1, 17:00, 412
1971, 1, 1, 18:00, 0
1971, 1, 1, 19:00, 0
1971, 1, 1, 20:00, 0
1971, 1, 1, 21:00, 0
1971, 1, 1, 22:00, 0
1971, 1, 1, 23:00, 0
1971, 1, 1, 24:00, 0
1971, 1, 2, 01:00, 0
1971, 1, 2, 02:00, 0
1971, 1, 2, 03:00, 0



Saving The Hourly PV Performance Data To a Text File

The output seen in the previous windw, PVWATTS: Hourly PV Performance Data, exist only in your browser window.
In order to save it to your harddrive you will need to do the following:

The new file can be opened in a text editor, and, with a little editting, imported into MS Excel™.


Please send questions and comments to webmaster

Disclaimer and copyright notice.


Return to RReDC home page (http://rredc.nrel.gov )