A Worldwide Theoretical Comparison of Outdoor Potential for Various Silicon-Based Tandem Module Architecture

Liu, Haohui; Rodríguez-Gallegos, Carlos D.; Liu, Zhe; Buonassisi, Tonio; Reindl, Thomas; Peters, Ian Marius

doi:10.1016/j.xcrp.2020.100037

Cited by 25 publications

(46 citation statements)

References 58 publications

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“…So a multi-terminal configuration is most beneficial for the double junction. The energy yield of multi-terminal silicon-based tandems using technologically relevant but not optimal band gaps (GaAs and GaInP) has recently been studied by several groups ( Schulte-Huxel et al., 2018 ; Essig et al, 2017 ; Liu et al., 2020 ). Using the corresponding band gaps (1.42 eV for GaAs and 1.85 eV for GaInP) with our model, we reproduce the results reported by Schulte-Huxel et al., (2018) , obtaining larger gains for the multi-terminal configuration than when using optimal band gaps.…”

Section: Resultsmentioning

confidence: 99%

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

et al. 2020

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The efficiency of photovoltaic modules in the field is generally lower than the efficiency under standard testing conditions due to temperature and spectral effects. Using the latest spectral dataset available from the National Solar Radiation Database, we report spectral correction factors ranging from-2% to 1.3% of the produced energy for silicon modules depending on location and collector geometry. We find that spectral effects favor trackers if silicon modules are used, but favor a fixed tilt instead if perovskites or CdTe are used. In high-irradiance locations, the energy yield advantage of silicon-based trackers is underestimated by 0.4% if spectral sensitivity effects are neglected. As the photovoltaic market grows to a multi-terawatt size, these seemingly small effects are expected to have an economic impact equivalent to tens of billions of dollars in the next few decades, far outweighting the cost of the required research effort.

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Section: Resultsmentioning

confidence: 99%

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

et al. 2020

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“…Here we underline that such an albedo is realistic for industrial solar parks optimized to operate with bifacial modules. In the near future, it is likely that albedos that result in rear irradiances as high as 30 mW cm -2 may be achieved, for example, with the implementation of a reflective coating that covers the ground and proper site selection 30 .…”

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confidence: 99%

Efficient bifacial monolithic perovskite/silicon tandem solar cells via bandgap engineering

et al. 2021

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Bifacial monolithic perovskite/silicon tandem solar cells exploit albedo-the diffuse reflected light from the environment-to increase their performance above that of monofacial perovskite/silicon tandems. Here we report bifacial tandems with certified power conversion efficiencies >25% under monofacial AM1.5G 1 sun illumination that reach power-generation densities as high as ~26 mW cm -2 under outdoor testing. We investigated the perovskite bandgap required to attain optimized current matching under a variety of realistic illumination and albedo conditions. We then compared the properties of these bifacial tandems exposed to different albedos and provide energy yield calculations for two locations with different environmental conditions. Finally, we present a comparison of outdoor test fields of monofacial and bifacial perovskite/silicon tandems to demonstrate the added value of tandem bifaciality for locations with albedos of practical relevance.

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“…Figure 6d–f shows the yearly energy production per m 2 from the different PV technologies in this study by applying the calculation method adopted in our previous report. [ 26 ] Here, it can be appreciated that, in general, the tandem devices are able to reach the highest energy yield, in particular the CdO‐In 2 O 3 ‐based perovskite/Si tandem achieves the highest yearly energy production in Singapore, Australia, and Germany, showing their great potential to enter the global PV market. With respect to the single‐junction modules, Si modules reach the highest performance in most cases.…”

Section: Resultsmentioning

confidence: 99%

“…[ 25 ] Afterward, the energy generation from the different PV technologies was estimated following our reported approach which considered the two‐diode model (its parameter values were estimated based on the measured standard test conditions [STC] IV curve per technology), weather conditions and measured STC EQE and temperature coefficient from all technologies. [ 26 ] With the previous results, the LCOE, assuming a PV lifetime of 25 years, was calculated considering the cost parameters per country of interest as reported before. [ 25 ] Furthermore, when calculating the LCOE values, the module power degradation for all technologies was considered to be of 0.55% per year which is a typical value when dealing with Si modules.…”

Section: Methodsmentioning

confidence: 99%

Amorphous CdO‐In₂O₃ Electrode for Perovskite‐Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production

et al. 2021

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Energy production of perovskite‐based photovoltaic (PV) technology can be increased not only by improving device efficiency of perovskite solar cells (PVSCs) but also by innovative concepts such as bifacial and tandem configurations which require low‐damage and highly transparent top electrodes. Herein, an amorphous CdO‐In2O3 alloy film with high transparency and low resistivity and its application in a bifacial PVSC and a perovskite/Si 4T tandem solar cell are reported. Due to the high optical transmittance, the CdO‐In2O3‐based PVSC shows a high bifaciality factor of 84.0%, and the CdO‐In2O3‐based perovskite/Si 4T tandem solar cell achieves a champion power conversion efficiency of 25.12%, much higher than the indium tin oxide based tandem cell. Finally, a yearly energy yield calculation and levelized cost of energy (LCOE) analysis for these PV technologies (together with Si single‐junction solar cells as a reference) in Singapore, Australia, and Germany are conducted. The results demonstrate the potential of CdO‐In2O3‐based perovskite PV technologies, yet more efforts are still required to further reduce the manufacturing cost to achieve competitive LCOE values in countries with relatively low PV installation cost.

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A Worldwide Theoretical Comparison of Outdoor Potential for Various Silicon-Based Tandem Module Architecture

Cited by 25 publications

References 58 publications

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

Efficient bifacial monolithic perovskite/silicon tandem solar cells via bandgap engineering

Amorphous CdO‐In₂O₃ Electrode for Perovskite‐Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production

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A Worldwide Theoretical Comparison of Outdoor Potential for Various Silicon-Based Tandem Module Architecture

Cited by 25 publications

References 58 publications

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

Location-Specific Spectral and Thermal Effects in Tracking and Fixed Tilt Photovoltaic Systems

Efficient bifacial monolithic perovskite/silicon tandem solar cells via bandgap engineering

Amorphous CdO‐In2O3 Electrode for Perovskite‐Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production

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Product

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Amorphous CdO‐In₂O₃ Electrode for Perovskite‐Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production