Long‐term performance and reliability of silicon heterojunction solar modules

Abstract

The high-efficiency silicon heterojunction (SHJ) technology is now perceived mature enough to enter the Giga-Watt manufacturing scale with several players around the globe. The growth of the SHJ technology requires confidence from manufacturers, investors, and system developers about its reliability and long-term performance. In this work, we perform a literature survey collecting performance data (and performance loss rates [PLRs]) published for SHJ modules. Publications on this specific subject are still limited; however, enough available data exist to drive some preliminary conclusions. Despite a long list of caveats specific to this type of meta-analysis, when considering all published datasets, we obtain for SHJ modules median and average PLR values of 0.56%/year and 0.70%/year, respectively. These numbers are in line with PLR generally reported for field-deployed crystalline silicon (c-Si modules). We then apply a filtering procedure to distinguish what we perceive to be high-accuracy datasets from less accurate ones. This methodology is understandably arbitrary, but

Recent Advances in Floating Photovoltaic Systems

“…PV modules are widely expected to function for at least 25 years with minimal power degradation [72,73] . However, several factors can influence their performance and durability, such as environmental conditions, moisture ingress, soiling, spectral effects, angular losses, electrical instability, and potential‐induced degradation [73,74] …”

“…[72,73] However, several factors can influence their performance and durability, such as environmental conditions, moisture ingress, soiling, spectral effects, angular losses, electrical instability, and potential-induced degradation. [73,74] Various environmental factors, including humidity, radiation, temperature, thermal cycling, and external impacts, can lead to PV module failure. [75,76] A PV module's power, current, voltage, and efficiency can be negatively affected by these degradation effects.…”

Device Physics and Design Principles of Mixed‐Dimensional Heterojunction Perovskite Solar Cells

“…[ 1 ] Sustaining efficiency improvements of PSCs to catch up with mainstream crystalline silicon (c‐Si) SCs (with a record efficiency of 26.81%) remains critical to enhance their competitive edges in the photovoltaic (PV) community. [ 2 ] However, further increasing the efficiency of PSCs remains challenging, as it requires highly complex fabrication processes and stringent material selection criteria.…”

Correlating Carrier Dynamics with Performance in Perovskite Solar Cells

“…The ongoing effects to enhance the efficiency of PSCs to rival mainstream crystalline silicon (c-Si) solar cells, which have achieved a record efficiency of 26.81%, remain a critical topic to enhance their competitiveness in the photovoltaic (PV) community. [10] Currently, effective methods to improve the efficiency of PSCs involve advanced structural and material design, combined with high-quality passivation at perovskite-related interfaces and grain boundaries. [11][12][13][14][15][16][17][18] For instance, Xu et al introduced an insulator alumina nanoplate with random nanoscale openings between the perovskite absorber and transport layer to reduce contact area and minimize surface recombination.…”

“…The ongoing effects to enhance the efficiency of PSCs to rival mainstream crystalline silicon (c‐Si) solar cells, which have achieved a record efficiency of 26.81%, remain a critical topic to enhance their competitiveness in the photovoltaic (PV) community. [ 10 ]…”