Revision as of 20:17, 31 January 2023

Power Production

https://pvwatts.nrel.gov/pvwatts.php - good. 8.5 MWhr/year with 20 degree tilt or 45 degree tilt. 8.2 MWhr/yr with 12 degree tilt. 8.7 MWhr/yr with 32 degree tilt. 7.8 MWhr/yr with 60 degree tilt. With 2 axis tracking, it is 12 MWhr/yr.
- Good reality check: Angle optimization in a fixed system gets you only about 6% improvement! 2 axis tracking gets you 50%.

Useful to study latitude (not much difference) vs time of day (lots of differentce, as this difference is determined by air mass. Think of space: in space around the earth, insolation would be constant.

Dual axis trackers improve energy gain by 40% [1]. Is that over fixed mount or seasonal change mount?
Bifacial panels add 14-40% more energy gain, and tracking adds about 40% [2]

@@ Line 2: / Line 2: @@
 *https://pvwatts.nrel.gov/pvwatts.php - good. 8.5 MWhr/year with 20 degree tilt or 45 degree tilt. 8.2 MWhr/yr with 12 degree tilt. 8.7 MWhr/yr with 32 degree tilt. 7.8 MWhr/yr with 60 degree tilt. With 2 axis tracking, it is 12 MWhr/yr.
-**Good reality check: '''Angle optimization in a fixed system gets you only about 6%! 2 axis tracking gets you 50%.'''
+**Good reality check: '''Angle optimization in a fixed system gets you only about 6% improvement! 2 axis tracking gets you 50%.'''
 =PV Panel Angle Calculator=