PRACTICAL METHOD to Estimate Energy Potential Generated by Photovoltaic Cells: Practice Case at Merida City

Morcillo-Herrera, Carlos; Hernández-Sánchez, Fernando; Flota-Bañuelos, Manuel

doi:10.1016/j.egypro.2014.10.029

Cited by 7 publications

(4 citation statements)

References 18 publications

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“…The Performance Ratio (PR) is defined as the ratio between the final system yield, in operation conditions, to the reference yield (Y r ), under ideal no-losses condition [11,46]. The PR includes the optical losses (Shadings, Incidence angle, soiling), the array losses (temperature operation, ageing, module quality, mismatch, wiring) and the system losses (inverter efficiency) [47][48][49]. The PR is useful for finding the efficiency of the entire PVP, regardless of module efficiency.…”

Section: The Solar Photovoltaic Potentialmentioning

confidence: 99%

Creating the Path for Sustainability: Inserting Solar PV in São Francisco Transposition Project

Galdino

Freitas²,

Silva

et al. 2020

Sustainability

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Semiarid regions are characterized by prolonged droughts and drought regimes. In Brazil, 57% of the northeast region is considered semiarid, with an average annual rainfall of less than 800 mm. This climatic condition imposes the need to conduct public policies and develop infrastructure in order to mitigate drought effects. In this context, the São Francisco River transposition project is an alternative to problems concerning city water supplying and aiming at decreasing socio-economic impacts resulting from water restrictions in this region. On the one hand, the river transposition has the potential to establish a new development cycle in Northeastern Brazil, while, on the other, electricity demands, estimated at 2533 GWh/year from 320 MW of installed capacity, require technological alternatives that ensure the project’s financial sustainability. In this context, this study presents proposals for arrangements concerning electric energy production through photovoltaic systems as an alternative supply for the transposition project. To this end, a study of the region’s photovoltaic solar potential was carried out. Based on the performed assessment, three production arrangement proposals that consider the use of (i) the lateral area and (ii) the transposition channel and (iii) part of the area of some reservoirs belonging to the transposition of São Francisco river. The study point out that the use of this potential for all three studied arrangements is favorable to supply, individually or in a combined form, the electrical energy demanded by the pumping stations installed.

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Section: The Solar Photovoltaic Potentialmentioning

confidence: 99%

Creating the Path for Sustainability: Inserting Solar PV in São Francisco Transposition Project

Galdino

Freitas²,

Silva

et al. 2020

Sustainability

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“…The scope of this paper is limited only to estimation techniques. Different methods have been proposed to estimate PV generation at the module and system levels [29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…Another work [30] considers the problem of accurately estimating the net distributed PV capacity for a region and uses the associated customer load curves with a bootstrap support vector regression to estimate the net capacity of installed distributed PV systems. The work in [31] proposes a practical method to compute energy generation based on a mathematical P-N junction model and posits that the module's conversion efficiency is lowered by half of what the efficiency is under STCs. Solar irradiance and frequency classification were used in [32] to estimate PV generation of residential PV systems in Japan.…”

Section: Introductionmentioning

confidence: 99%

Hybrid data‐model method to improve generation estimation and performance assessment of grid‐tied PV: a case study

Sundararajan¹,

Sarwat²

2019

IET Renewable Power Generation

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Increased installed capacity of distributed photovoltaic (PV) systems has necessitated accurate measurement and tracking of PV performance under locality-specific conditions of irradiance, temperature, and derate factors. Existing PV generation estimation methods are strictly model based and not responsive to changes in weather and system losses. Metrics computed using these methods, therefore, do not capture the real PV behaviour well. This study proposes a hybrid data-model method (HDMM) that uses historical PV data in addition to model information to improve the accuracy of generation estimation. The generation estimated by HDMM is used to compute performance metrics-performance ratio, yield, capacity factor, energy performance index, and power performance index-for two real-world PV systems at Miami (ℳ, 1.4 MW) and Daytona (D, 1.28 MW) for 2017. The significance of these metrics is then evaluated, and a preliminary analysis of inverter efficiencies is provided. Results from this study show that when compared with the existing estimation method, HDMM performs better on an average by 75% for D and 10% for ℳ. Further, at a given point in time, system ℳ is likely to perform better than D. The study gives system installers and other stakeholders better PV system visibility, enabling aggregation and transactive energy. 2 Related work The performance of PV systems has been studied well in the literature, both at system level and module level [9, 10]. However, only system-level performance is of scope in this paper. In a prior work of the authors [11], an in-depth analysis of PV performance for a special case of the partial solar eclipse of 21 August 2017 was conducted to demonstrate how critical the problem of PV performance analysis is for operators under high penetration scenarios. A study with a similar scope was conducted in [12] for

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“…The sensor is chosen according to its rate of response and other requirements [14,15]. The correct design, calibration, and use of these sophisticated equipment provide good information about the irradiance at a given location [16,17]. On the other hand, many papers aimed at improving the prediction of the performance of a PV energy capture system have been published [14,[18][19][20][21][22][23].…”

Section: Journal Of Solar Energymentioning

confidence: 99%

A Simple and Inexpensive Method for Evaluating the Photovoltaic Potential: Its Validation in Buenos Aires and Antarctica

Cabezas

Hawryluk

Franco

et al. 2016

Journal of Solar Energy

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The use of renewable energies requires a precise and detailed quantification of the resource available. Because of the cost of solar stations or limited availability of skilled human resources, in most emerging countries, this assessment is made only on a few points scattered over large areas. We report here a simple and inexpensive method to evaluate the photovoltaic (PV) potential for a specific geographic region and a given PV capture technology. The system allows for a direct evaluation of the energy actually obtainable by scaling the measurement array of photovoltaic cells. The proposed measurement system can be installed as a stand-alone unit, or as part of a measurement network, connected to a more sophisticated central hub. The measurement station consists of said PV array (or similar PV array), a resistor, and a portable data logger. The system is calibrated with a device composed of a small array of PV cells, a resistor load bank, and two multimeters. Due to its low cost, this system can be replicated as many times as required with minimal investment. This would make it possible to evaluate the available photovoltaic potential of large regions with accurate and detailed data. Measurements carried out in Buenos Aires and in Antarctica confirm the consistency of the method.

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PRACTICAL METHOD to Estimate Energy Potential Generated by Photovoltaic Cells: Practice Case at Merida City

Cited by 7 publications

References 18 publications

Creating the Path for Sustainability: Inserting Solar PV in São Francisco Transposition Project

Creating the Path for Sustainability: Inserting Solar PV in São Francisco Transposition Project

Hybrid data‐model method to improve generation estimation and performance assessment of grid‐tied PV: a case study

A Simple and Inexpensive Method for Evaluating the Photovoltaic Potential: Its Validation in Buenos Aires and Antarctica

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