Explain the relationship between the tracking
ability of a solar PV system and its energy
production.
Simulated energy production for one kilowatt of solar PV capacity in Los Angeles, Calif.
hourly average production by season, watthours
800
700
600
500
400
300
200
100
0
4 8 12 16 20 p 4 8 12 16 20 4 8 12 16 20
winter
summer
spring
(Mar-May)
(Dec-Feb)
(Jun-Aug)
Adnun
PV array facing south at fixed tilt
4 8 12 16 20
fall
(Sep-Nov)
Aion Axis of rotation
2
One axis tracking PV array
with axis oriented south.
tracking.
dual-axis
tracking.
single-axis
afted south
no tracking.
sited south
no tracking.
fat
Axis of rotation
Two-axis tracking PV array
ela
