Publication

Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions

Ordóñez, F., Morales, C., López-Villada, J. & Vaca Jiménez, S. D., Jun-2018, In : Journal of Solar Energy Engineering. 140, 3, 7 p., 031003.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Ordóñez, F., Morales, C., López-Villada, J., & Vaca Jiménez, S. D. (2018). Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions. Journal of Solar Energy Engineering, 140(3), [031003]. https://doi.org/10.1115/1.4039095

Author

Ordóñez, Freddy ; Morales, Carlos ; López-Villada, Jesús ; Vaca Jiménez, Santiago David. / Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions. In: Journal of Solar Energy Engineering. 2018 ; Vol. 140, No. 3.

Harvard

Ordóñez, F, Morales, C, López-Villada, J & Vaca Jiménez, SD 2018, 'Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions', Journal of Solar Energy Engineering, vol. 140, no. 3, 031003. https://doi.org/10.1115/1.4039095

Standard

Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions. / Ordóñez, Freddy; Morales, Carlos; López-Villada, Jesús; Vaca Jiménez, Santiago David.

In: Journal of Solar Energy Engineering, Vol. 140, No. 3, 031003, 06.2018.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Ordóñez F, Morales C, López-Villada J, Vaca Jiménez SD. Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions. Journal of Solar Energy Engineering. 2018 Jun;140(3). 031003. https://doi.org/10.1115/1.4039095


BibTeX

@article{29c81556eadd4a9ca3fe5ab1aaad35f3,
title = "Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions",
abstract = "Solar tracking is a major alternative to increase the electric output of a photovoltaic (PV) module, and therefore, improves the global energy collected by PV systems. Nonetheless, solar-tracking PV systems require more resources and energy than static systems. Additionally, the presence of cloudiness and shadows from near buildings may reduce the profitability of these systems. Therefore, their feasibility must be assessed in order to justify their application. In equatorial latitudes, the sun's movement through the sky is in the zenith East-West axis. It may be advantageous, since the best tilt in such latitudes is the horizontal. In these terms, the main objective of this research is to numerically assess the performance of a PV array with solar tracking and under typical operation conditions in equatorial latitudes. For this, the assessment of the solar resource in Quito was analyzed in first place. Then, the comparison between three solar arrays was studied to evaluate the feasibility of solar tracking (two-axes tracking, horizontal one-axis tracking, and horizontal fixed). Additionally, the impact of cloudiness and shadows in the system was analyzed. The results showed that the horizontal one-axis tracking is the most beneficial option for equatorial latitudes as the two-axes tracking system only surpasses the gains of the one-axis tracking marginally. Furthermore, the use of a strategy to place the PV modules horizontally in cloudy conditions seems to be marginally advantageous. Finally, the shadows created from neighboring buildings in the East and West of the system may reduce considerably the solar irradiation on the PV-array (not the ones in the north and south).",
keywords = "PV systems, solar tracking, equatorial latitudes, cloudiness and shadow assessment, POWER OUTPUT, RADIATION, ARRAYS, DESIGN",
author = "Freddy Ord{\'o}{\~n}ez and Carlos Morales and Jes{\'u}s L{\'o}pez-Villada and {Vaca Jim{\'e}nez}, {Santiago David}",
year = "2018",
month = "6",
doi = "10.1115/1.4039095",
language = "English",
volume = "140",
journal = "Journal of Solar Energy Engineering",
issn = "0199-6231",
publisher = "ASME",
number = "3",

}

RIS

TY - JOUR

T1 - Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions

AU - Ordóñez, Freddy

AU - Morales, Carlos

AU - López-Villada, Jesús

AU - Vaca Jiménez, Santiago David

PY - 2018/6

Y1 - 2018/6

N2 - Solar tracking is a major alternative to increase the electric output of a photovoltaic (PV) module, and therefore, improves the global energy collected by PV systems. Nonetheless, solar-tracking PV systems require more resources and energy than static systems. Additionally, the presence of cloudiness and shadows from near buildings may reduce the profitability of these systems. Therefore, their feasibility must be assessed in order to justify their application. In equatorial latitudes, the sun's movement through the sky is in the zenith East-West axis. It may be advantageous, since the best tilt in such latitudes is the horizontal. In these terms, the main objective of this research is to numerically assess the performance of a PV array with solar tracking and under typical operation conditions in equatorial latitudes. For this, the assessment of the solar resource in Quito was analyzed in first place. Then, the comparison between three solar arrays was studied to evaluate the feasibility of solar tracking (two-axes tracking, horizontal one-axis tracking, and horizontal fixed). Additionally, the impact of cloudiness and shadows in the system was analyzed. The results showed that the horizontal one-axis tracking is the most beneficial option for equatorial latitudes as the two-axes tracking system only surpasses the gains of the one-axis tracking marginally. Furthermore, the use of a strategy to place the PV modules horizontally in cloudy conditions seems to be marginally advantageous. Finally, the shadows created from neighboring buildings in the East and West of the system may reduce considerably the solar irradiation on the PV-array (not the ones in the north and south).

AB - Solar tracking is a major alternative to increase the electric output of a photovoltaic (PV) module, and therefore, improves the global energy collected by PV systems. Nonetheless, solar-tracking PV systems require more resources and energy than static systems. Additionally, the presence of cloudiness and shadows from near buildings may reduce the profitability of these systems. Therefore, their feasibility must be assessed in order to justify their application. In equatorial latitudes, the sun's movement through the sky is in the zenith East-West axis. It may be advantageous, since the best tilt in such latitudes is the horizontal. In these terms, the main objective of this research is to numerically assess the performance of a PV array with solar tracking and under typical operation conditions in equatorial latitudes. For this, the assessment of the solar resource in Quito was analyzed in first place. Then, the comparison between three solar arrays was studied to evaluate the feasibility of solar tracking (two-axes tracking, horizontal one-axis tracking, and horizontal fixed). Additionally, the impact of cloudiness and shadows in the system was analyzed. The results showed that the horizontal one-axis tracking is the most beneficial option for equatorial latitudes as the two-axes tracking system only surpasses the gains of the one-axis tracking marginally. Furthermore, the use of a strategy to place the PV modules horizontally in cloudy conditions seems to be marginally advantageous. Finally, the shadows created from neighboring buildings in the East and West of the system may reduce considerably the solar irradiation on the PV-array (not the ones in the north and south).

KW - PV systems

KW - solar tracking

KW - equatorial latitudes

KW - cloudiness and shadow assessment

KW - POWER OUTPUT

KW - RADIATION

KW - ARRAYS

KW - DESIGN

U2 - 10.1115/1.4039095

DO - 10.1115/1.4039095

M3 - Article

VL - 140

JO - Journal of Solar Energy Engineering

JF - Journal of Solar Energy Engineering

SN - 0199-6231

IS - 3

M1 - 031003

ER -

ID: 53674112