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Geerligs, L.J. (author), Manshanden, P. (author), Hoek, E.G. (author), Okel, L.A.G. (author), Dogan, I. (author), Simurka, I. (author), Fledderus, H. (author), Zardetto, V. (author), Zhang, D. (author), Najafi, M. (author), Bracesco, A.E.A. (author), Creatore, M. (author), Coletti, G.C. (author), Veenstra, S.C. (author)—4-terminal tandem technology is a straightforward approach to bring to the market perovskite/crystalline silicon tandem modules. However, dealing with 4 terminals poses a challenge at system level for practical deployment. We have produced large area 4-terminal perovskite/crystalline silicon tandem modules for a study of the performance of a 2...conference paper 2021
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- Newman, B.K. (author), Guillevin, N. (author), Späth, M. (author), Burgers, A.R. (author), Rosca, V. (author), Okel, L.A.G. (author) public lecture 2020
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- Newman, B.K. (author), Okel, L.A.G. (author), van der Ham, A. (author), Regondi, S. (author), Steenbeek, J. (author), Maar, J. (author) public lecture 2018
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- Brounne, M. (author), Heuseveldt, J.W. (author), Rosca, V. (author), Okel, L.A.G. (author) public lecture 2018
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- Sinapis, K. (author), Pacheco Bubi, R. (author), Slooff-Hoek, L.H. (author), Okel, L.A.G. (author), Jansen, M.J. (author), Folkerts, W. (author) conference paper 2018
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Sinapis, K. (author), Pacheco Bubi, R. (author), Slooff, L.H. (author), Folkerts, W. (author), Okel, L.A.G. (author)Large scale implementation of PV in urban areas asks for more shadow tolerant modules and more size flexibility. Power optimizers and micro inverters can be used to improve shadow tolerance of standard c-Si modules but the electrical interconnection and the size of cell groups in the standard module design is a limiting factor when it comes to...conference paper 2018
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Slooff, L.H. (author), van Roosmalen, J.A.M. (author), Okel, L.A.G. (author), Minderhoud, T. (author), Gijzen, G. (author), Polinder, L.C. (author), Goethals, F. (author)The energy transition and more precisely, the contribution of photovoltaics (PV) in that transition, asks for better integration of PV in buildings, infrastructure and landscapes. To realize this, a variation in shape, size and color of PV products is needed. In this paper a technology will be shown that allows variation of all these features....conference paper 2018
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van Roosmalen, J.A.M. (author), Slooff, L.H. (author), Okel, L.A.G. (author), van den Donker, M.N. (author), Minderhoud, T. (author), Sepers, T. (author), Versluis, A. (author), Frumau, F. (author), Rietbergen, M. (author), Polinder, L. (author), Heller, E.M.B. (author), de Vries, T. (author), Gijzen, G. (author), Wang, Ningzh (author), Energieonderzoek Centrum Nederland (author)Solar energy will become increasingly important in the energy mix in the coming decades and will become much more visible in urban areas. Standard, rectangular size solar panels do not allow full roof or façade coverage. Together with their blueish appearance, they are visible, but not in an attractive way. Dutch Solar Design (DSD-PV)...conference paper 2017
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Dekker, N.J.J. (author), Jansen, M.J. (author), Eerenstein, W. (author), Guillevin, N. (author), Bende, E.E. (author), Okel, L.A.G. (author), Newman, B.K. (author), Energieonderzoek Centrum Nederland (author)Back contact cells architectures, especially Interdigitated Back Contact (IBC), offer the potential for the highest efficiencies, best aesthetics, and application flexibility. Foil-based back contact module interconnect for these architectures has been shown to be a high throughput, industrially viable, and reliable solution for both IBC and...conference paper 2017
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Burgers, A.R. (author), Rosca, V. (author), Carr, A.J. (author), Okel, L.A.G. (author), Jong, J. (author), Brouwer, E. (author), Energieonderzoek Centrum Nederland (author)Herein we report on the development and testing of a high-performance structured AR coating applied to solar glass by means of TOWA’s high-pressure molding technology. This technology allows the application of optically-active structures on glass with unprecedented freedom of geometry and precision. The structured layer with AR functionality...conference paper 2017
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van Roosmalen, J.A.M. (author), Slooff, L.H. (author), Okel, L.A.G. (author), Minderhoud, T. (author), Sepers, T. (author), Versluis, A. (author), Frumau, F. (author), Rietbergen, M. (author), Polinder, L. (author), Heller, E.M.B. (author), de Vries, F. (author), de Vries, T. (author), Gijzen, G. (author), Energieonderzoek Centrum Nederland (author)In order to improve the social acceptance of photovoltaic modules, the choice in panel color and size should be enlarged. Although various approaches have been reported to change the appearance of PV modules, it often adds complexity to the manufacturing process. Here an approach is presented in which a design module can be manufactured on...conference paper 2017
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Burgers, A.R. (author), Weeber, A.W. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), Rosca, V. (author), Cesar, I. (author), Okel, L.A.G. (author), Spinelli, P. (author), Sawallich, S. (author), Nagel, M. (author)An integral solar cell and module concept is developed based on an IBC cell design with a front floating emitter (FFE). The FFE renders the cell resilient to electrical shading and reduces the demands on feature size. The cells are bi-facial by design. We interconnected 6” IBC cells using a conductive back sheet foil, resulting in a visually...article 2017
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Jansen, M.J. (author), Slooff, L.H. (author), Bakker, J. (author), Carr, A.J. (author), Okel, L.A.G. (author), de Groot, K.M. (author), de Gier, B. (author), Harthoorn, A. (author), Jonkman, R. (author)A full size TESSERA shade tolerant module has been made and was tested under various shadow conditions. The results show that the dedicated electrical interconnection of cells result in an almost linear response under shading. Furthermore, the voltage at maximum power point is almost independent of the shadow. This decreases the demand on the...article 2017
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Jansen, M.J. (author), Slooff, L.H. (author), Carr, A.J. (author), Okel, L.A.G. (author), de Groot, K.M. (author), Jonkman, R. (author), Energieonderzoek Centrum Nederland (author)Tessera® is a new Si PV module concept especially developed to improve the integratability of PV. Tessera enables freedom of module size, shape and form and moreover has a high shadow tolerance. Where standard PV systems have a significantly reduced output under partial shading conditions, a shadow of 10% on a module can decrease the...conference paper 2017
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van Roosmalen, J.A.M. (author), Luxembourg, S.L. (author), van Aken, B.B. (author), Okel, L.A.G. (author), Liu, J. (author), Energieonderzoek Centrum Nederland (author)We present a novel module design to increase the power output of bifacial modules without compromising the increased energy yield due to the bifaciality. This innovation includes a highly reflective interlayer between and around the bifacial solar cells and laminated between the front and rear encapsulant. Although bifacial solar cells in...conference paper 2016
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Jansen, M.J. (author), Manshanden, P. (author), Slooff, L.H. (author), Bende, E.E. (author), Okel, L.A.G. (author), Danzl, F.J.K. (author), Energieonderzoek Centrum Nederland (author)The efficiency of photovoltaic modules is for a large part determined by the solar cell efficiency, but the electrical losses from current transport between the cells and to the module contacts, and optical losses also play an important role. In order to investigate the losses in the module the Cell to Module (CtM) ratio is often used. It is...conference paper 2016
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Tool, C.J.J. (author), Koppes, M. (author), Gutjahr, A. (author), Geerligs, L.J. (author), Romijn, I.G. (author), Guillevin, N. (author), van Aken, B.B. (author), Bende, E.E. (author), Loffler, J. (author), Okel, L.A.G. (author), Zhai, jinye (author), Newman, B.K. (author), Wang, J. (author), Wang, Z. (author), Chen, Y. (author), Wang, Y. (author), Energieonderzoek Centrum Nederland (author)Metal wrap through (MWT) cells and modules offer technology that combines a front junction cell with an all back contact module interconnection offering potential for higher efficiency, improved cost to power ratio, lower electrical cell to module losses, and improved module aesthetics. For the best conversion efficiency, isolation of the vias...conference paper 2015
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Janssen, G.J.M. (author), Romijn, I.G. (author), van Aken, B.B. (author), Okel, L.A.G. (author), van Roosmalen, J.A.M. (author), Mrcarica, M. (author), Du-Mong, K. (author), Rooijmans, M. (author), Panofen, C. (author), Energieonderzoek Centrum Nederland (author)DSM’s light trapping film (LTF) is applied to bifacial modules to improve the energy yield for vertical, east/west facing applications. The LTF increases the current both at test conditions (STC) and under high albedo with about 4% compared to planar solar glass, due to the better anti-reflection (AR) and light trapping properties. Without LTF,...conference paper 2015
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Goris, M.J.A.A. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), van Aken, B.B. (author), Rosca, V. (author), Cesar, I. (author), Okel, L.A.G. (author), Energieonderzoek Centrum Nederland (author)In this paper we have presented an overview of the recent reliability results obtained at ECN for foil-based p-MWT, and novel high-efficiency n-MWT and IBC back-contact modules. As deduced from extensive TC and DH testing on p-MWT modules, two alternative low-cost conductive back sheet foils were shown to improve the module reliability. Exposure...conference paper 2015
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Goris, M.J.A.A. (author), van Roosmalen, J.A.M. (author), Bende, E.E. (author), Jansen, M.J. (author), Bakker, J. (author), Carr, A.J. (author), Eerenstein, W. (author), Okel, L.A.G. (author), de Groot, K.M. (author), Jonkman, R. (author), van der Sanden, R. (author), de Gier, B. (author), Harthoorn, A. (author), Energieonderzoek Centrum Nederland (author)Application of PV in the built environment, both as BAPV and BIPV, requires improved aesthetics, decreased operating temperatures of the modules and diodes, improved output under partial shading and reduced production costs while allowing the size and shape of the PV elements to be more flexible. ECN presents TESSERA: a novel PV module lay-out...conference paper 2015
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