Novel optical approach for concentrating light in micro-CPV

Jost, Norman; Domínguez, César; Vallerotto, Guido; Gu, Tian; Hu, Juejun; Antón, Ignacio

doi:10.1109/pvsc40753.2019.8980963

Cited by 8 publications

(8 citation statements)

References 11 publications

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“…As an example, TIR optic designs with an acceptance angle of AE1°at 1000X and optical efficiencies over 80% have been proposed in ref. [112], this can be seen in Figure 14B. Drawbacks of TIR optics include manufacturability, shape conformity, and surface quality.…”

Section: Tir-opticsmentioning

confidence: 97%

Integrated Micro‐Scale Concentrating Photovoltaics: A Scalable Path Toward High‐Efficiency, Low‐Cost Solar Power

Jost

Juejun

et al. 2023

Solar RRL

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The global energy market is seeing increases in the electricity demand of a couple of percentage points annually. The photovoltaic (PV) industry is also growing rapidly every year. One of the PV technologies is concentrator photovoltaics (CPV). CPV uses high‐efficiency multijunction solar cells and optics to concentrate sunlight, thereby significantly reducing the amount of semiconductor material needed. Yet, due to the high upfont manufacturing cost of CPV, it currently does not offer a competitive price against silicon PV. With this a new branch is introduced to the industry, micro‐CPV, which can be broadly explained as the miniaturization of the solar cells and optical components. The motivation for micro‐CPV is lowering the cost by decreasing the material volume and enabling new system architectures and high‐throughput manufacturing methods, while still maintaining high electrical efficiencies, taking advantage of a lower thermal load, shorter optical paths, lower resistive losses, and lower material volumes. Herein, a comprehensive review of the technological advances is presented, key synergies between micro‐CPV and other industries sharing similar challenges are identified, exemplified by micro‐light emitting diodes display manufacturing. New assembly process development in these industries will facilitate commercial adoption of micro‐CPV with continued miniaturization while driving down the cost.

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Section: Tir-opticsmentioning

confidence: 97%

Integrated Micro‐Scale Concentrating Photovoltaics: A Scalable Path Toward High‐Efficiency, Low‐Cost Solar Power

Jost

Juejun

et al. 2023

Solar RRL

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“…The second approach is imparting plasticity to rigid devices using a geometrically optimized platform where the strain is concentrated in areas of high elasticity, and the rigid components are placed in areas that are not subject to strain. [20][21][22][23][24][25] For example, Lee et al proposed a platform that enables the fabrication of stretchable GaAs-based devices with a PCE of 19% and a stretchability of 60%. [23] Et-Atab et al employed commercial SCs embedded into an ECOFLEX polymer to fabricate a module with an efficiency of 19% and a strain of 95%.…”

Section: Introductionmentioning

confidence: 99%

Highly Stretchable Photovoltaic Module with Improved Mechanical Robustness through Elastomeric Interconnections

Salimzhanov,

Kang,

Raju

et al. 2024

Solar RRL

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Stretchable photovoltaics have garnered increasing attention due to their adaptability to various surfaces and applications, meeting the rising demands for portable and flexible power sources. In this work, stretchable solar modules are demonstrated by sandwiching electrically connected rigid solar cells between top and bottom polydimethylsiloxane (PDMS) layers, which are then attached onto an elastomer with an island and trench structure. The electrical connection of solar cells is achieved by dispenser‐printing of electrically conductive adhesive (ECA). The fabricated stretchable solar modules have a maximum bi‐axial elongation of 75%, and the electrical connection of the solar cells using ECA resulted in a negligible efficiency loss of 1.6%. In particular, embedding of solar cells and interconnects between PDMS layers enhances mechanical stability by placing these key components at the mechanical neutral plane and the long‐term stability against humidity due to the encapsulation role of the PDMS layer. The module demonstrates only a 5% of efficiency drop after 1000 hours in the dump‐heat test (85°C/85%). The results in this study are not limited to solar cells but can be applied to various types of rigid devices, paving the way for the commercialization of stretchable electronics.This article is protected by copyright. All rights reserved.

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“…[ 2,3 ] Concurrently, the photovoltaic (PV) sector experiences substantial annual expansion. [ 4 ] The significance of PV power in sustainable energy solutions has underscored the critical importance of accurately estimating its capacity value for effective integration into power systems. However, current estimation methods are prone to significant errors due to various factors such as data granularity, forecasting inaccuracies, and the variability and intermittency inherent in solar energy.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Photovoltaic Farm Capacity Estimation: A Comprehensive Analysis with a Novel Approach

Hosseini Dolatabadi,

Soleimani,

Maghanaki

et al. 2024

Energy Tech

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This research paper addresses the inaccuracies in the current methods for estimating the capacity value of photovoltaic (PV) plants, which rely heavily on large‐scale data and fail to represent the actual capacity value pattern accurately. The research conducts case studies in Belgium, Texas, and California to analyze the impact of different factors on capacity value. It proposes a new metric called the Marginal Moving‐Average Limited‐Hours (MMALH) Equivalent Load‐Carring Capability (ELCC) ‐ Based capacity value. The proposed metric reduces the dependence on hourly data and better represents capacity value. The results from real case studies validate the effectiveness of the new metric, highlighting its novelty and contribution to the assessment of capacity value in PV power systems. The study emphasizes the importance of accurately assessing the capacity value of PV compared to conventional units, considering environmental factors and system parameters. The study exposes the shortcomings in current metrics and advocates for the MMALH ELCC methodology as a more precise evaluation approach. The research suggests optimizing design, employing advanced tracking systems, enhancing maintenance practices, and ensuring effective grid integration to boost solar plant efficiency. Consistent monitoring and analysis of the utilization factor are vital for pinpointing improvement areas and augmenting productivity.

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Novel optical approach for concentrating light in micro-CPV

Cited by 8 publications

References 11 publications

Integrated Micro‐Scale Concentrating Photovoltaics: A Scalable Path Toward High‐Efficiency, Low‐Cost Solar Power

Integrated Micro‐Scale Concentrating Photovoltaics: A Scalable Path Toward High‐Efficiency, Low‐Cost Solar Power

Highly Stretchable Photovoltaic Module with Improved Mechanical Robustness through Elastomeric Interconnections

Enhancing Photovoltaic Farm Capacity Estimation: A Comprehensive Analysis with a Novel Approach

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