Maximizing Yield with Improved Single-Axis Backtracking on Cross-Axis Slopes: Preprint
Conference
·
OSTI ID:1669380
Many tracking PV systems avoid row-to-row shading by backtracking in morning and afternoon. Because the common single-axis backtracking implementation assumes the array is in a horizontal plane, it does not fully prevent row-to-row shading in arrays installed on cross-axis slopes. This paper simulates the effect of reduced self-shading on annual production with two modified backtracking strategies. Depending on the array geometry and the steepness of the cross-axis grade, using a modified backtracking strategy improved annual yield by 3-10%.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
- DOE Contract Number:
- AC36-08GO28308;
- OSTI ID:
- 1669380
- Report Number(s):
- NREL/CP-5K00-76023; MainId:7092; UUID:f216390b-a347-ea11-9c31-ac162d87dfe5; MainAdminID:13352
- Conference Information:
- Presented at the 47th IEEE Photovoltaic Specialists Conference (PVSC 47), 15 June - 21 August 2020
- Country of Publication:
- United States
- Language:
- English
Similar Records
Maximizing Yield with Improved Single-Axis Backtracking on Cross-Axis Slopes
Slope-Aware Backtracking for Single-Axis Trackers
Shaded fraction and backtracking in single-axis trackers on rolling terrain
Conference
·
Mon Jan 04 23:00:00 EST 2021
·
OSTI ID:1769834
Slope-Aware Backtracking for Single-Axis Trackers
Technical Report
·
Tue Jun 30 20:00:00 EDT 2020
·
OSTI ID:1660126
Shaded fraction and backtracking in single-axis trackers on rolling terrain
Journal Article
·
Mon Apr 01 20:00:00 EDT 2024
· Journal of Renewable and Sustainable Energy
·
OSTI ID:2560950