Table 5.
Open in new tab

Parameter comparison between the TTDAT and AADAT systems.

CriteriaTTDATAADATReferences
Tracking methodTwo-axis rotationTwo-axis rotation[105–108]
Axis of rotationTilt and panAzimuth and elevation
Control mechanismFeedback loop and sensorsFeedback loop and sensors
Accuracy0.2 horizontal
rotating angle: 180°		High as compared to tip-tilted
Energy efficiency16%–24% when the axis is oriented south‒north24%–30% when the axis is oriented south–north
Space requirementSmall as compared to fixed trackerLarge as compared to fixed tracker
CostLow to moderate as compared to fixed trackersHigh as compared to tilted trackers
MaintenanceSimple as compared to another tracking systemComplex in maintenance
ApplicabilitySmall and medium systemsLarge systems and utility scale
CriteriaTTDATAADATReferences
Tracking methodTwo-axis rotationTwo-axis rotation[105–108]
Axis of rotationTilt and panAzimuth and elevation
Control mechanismFeedback loop and sensorsFeedback loop and sensors
Accuracy0.2 horizontal
rotating angle: 180°		High as compared to tip-tilted
Energy efficiency16%–24% when the axis is oriented south‒north24%–30% when the axis is oriented south–north
Space requirementSmall as compared to fixed trackerLarge as compared to fixed tracker
CostLow to moderate as compared to fixed trackersHigh as compared to tilted trackers
MaintenanceSimple as compared to another tracking systemComplex in maintenance
ApplicabilitySmall and medium systemsLarge systems and utility scale
Table 5.
Open in new tab

Parameter comparison between the TTDAT and AADAT systems.

CriteriaTTDATAADATReferences
Tracking methodTwo-axis rotationTwo-axis rotation[105–108]
Axis of rotationTilt and panAzimuth and elevation
Control mechanismFeedback loop and sensorsFeedback loop and sensors
Accuracy0.2 horizontal
rotating angle: 180°		High as compared to tip-tilted
Energy efficiency16%–24% when the axis is oriented south‒north24%–30% when the axis is oriented south–north
Space requirementSmall as compared to fixed trackerLarge as compared to fixed tracker
CostLow to moderate as compared to fixed trackersHigh as compared to tilted trackers
MaintenanceSimple as compared to another tracking systemComplex in maintenance
ApplicabilitySmall and medium systemsLarge systems and utility scale
CriteriaTTDATAADATReferences
Tracking methodTwo-axis rotationTwo-axis rotation[105–108]
Axis of rotationTilt and panAzimuth and elevation
Control mechanismFeedback loop and sensorsFeedback loop and sensors
Accuracy0.2 horizontal
rotating angle: 180°		High as compared to tip-tilted
Energy efficiency16%–24% when the axis is oriented south‒north24%–30% when the axis is oriented south–north
Space requirementSmall as compared to fixed trackerLarge as compared to fixed tracker
CostLow to moderate as compared to fixed trackersHigh as compared to tilted trackers
MaintenanceSimple as compared to another tracking systemComplex in maintenance
ApplicabilitySmall and medium systemsLarge systems and utility scale
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