Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Current-Voltage Measurement Behavior of the CIGS Solar Module through the Evaluation of KS C 8562 Standard

KS C 8562 평가를 통한 CIGS 태양광모듈의 출력 거동 분석

  • Kyung Soo Kim (Photovoltaics Research Department, Renewable Energy Institute, Korea Institute of Energy Research (KIER))
  • 김경수 (태양광연구단, 재생에너지연구소, 한국에너지기술연구원)
  • Received : 2024.05.15
  • Accepted : 2024.06.18
  • Published : 2024.06.30
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Abstract

CIGS solar cells are thin film solar cells that have excellent light absorption coefficient and can be manufactured with high efficiency through the use of low materials. In Korea, they must pass KS certification for home and commercial installation. KS C 8562 is a standard for evaluating the durability of CIGS and thin film amorphous silicon solar modules and deals with contents such as light, temperature, humidity, and mechanical durability. Unlike general crystalline silicon solar modules, the CIGS solar module has a different behavior of output change through these environmental tests, so if it shows 90% or more of the rated output suggested by the manufacturer after the final test, it is judged to be a suitable product. In this paper, the output before and after individual tests was measured through the test method of KS C 8562 to observe the output change and to discover the vulnerabilities of the CIGS solar module when exposed to various environments. Through this, it was confirmed that humidity exposure was the most vulnerable and that it had output recovery characteristics for light (visible light and ultraviolet rays). This study attempted to present the output behavior characteristics and data of the CIGS module at the time when the high efficiency thin film photovoltaic module market is expected to be created in the future.

Keywords

Acknowledgement

이 논문은 2011년도(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원과(과제번호 : 2011T100100038 과제명: 대면적(900×1600 mm2) 고효율(16%) CIGS 박막태양전지 기술 개발) 2023년도(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(과제번호: RS-2023-00303745 과제명: 탄소배출이 적고 재활용이 용이한 모듈 소재 및 공정 기술개발).

References

  1. PVPS, "Snapshot of Global PV Markets 2024", IEA PVPS, T1-42 (2024).
  2. PVPS, "Trends in Photovoltaic Applications 2023 Report", IEA PVPS, T1-43 (2023).
  3. The National Renewable Energy Laboratory (NREL), https://www.nrel.gov/pv/cell-efficiency.html (accessed on 5 15 2024)
  4. Industrial Convergence Source Technology Development Project, Low-Cost, High-Efficiecy and Large-Area CIGS Thin-Film Solar Modules, Project number 2011T100100038, KETEP (2011).
  5. J. Nam , Y. Kang , D. Kim , D. Baek , D. Lee , J. Yang , The oxidation effect of a Mo back contact on Cu(In,Ga)(Se,S)2 thin-film solar modules, Sol. Energy Mater. Sol. Cells. 144, 445-450 (2016). https://doi.org/10.1016/j.solmat.2015.09.035
  6. K.-S. Kim, G.-H. Kang, G.-J Yu, S.-G. Yoon, Performance measurement method of several types of photovoltaic module depending on efficiency, J. Korean Solar Energy. 31, 93-99 (2011). https://doi.org/10.7836/kses.2011.31.1.093
  7. KS C 8562 : Thin film photovoltaic (PV) module (performance) (2022).
  8. J. Dennis, Life prediction for CIGS solar modules part 1: Modeling moisture ingress and degradation, Prog. Photovolt.: Res. Appl. 21, 156-172 (2013). https://doi.org/10.1002/pip.1172
  9. S. Boulhidja, A. Mellit, Performance degradation of CIGS photovoltaic modules by light soaking and reverse bias, 2015 4th International Conference on Electrical Engineering (ICEE), pp. 1-4 (2015).
  10. S. Lee, S. Bae, S. J. Park, J. Gwak, J. H. Yun, Y. Kang, D. Kim, Y.-J. Eo, H.-S. Lee, Characterization of potential-induced degradation and recovery in CIGS solar cells, Energies. 14, 4628 (2021).
  11. K. Bakker, A. Weeber, M. Theelen, Reliability implications of partial shading on CIGS photovoltaic devices: A literature review. Journal of Materials Research (JMR). 34, 3977-3987 (2019). https://doi.org/10.1557/jmr.2019.373