PVI Paper

State-of-the-art c-Si cell manufacturing: Trends in materials, processes and products identified in the 5th edition of the ITRPV roadmap

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email

By Markus Fischer, Director of R&D Processes, Hanwha Q CELLS GmbH; Alexander Gerlach, Senior Specialist, Hanwha Q CELLS GmbH

The crystalline silicon (c-Si) module price has been fluctuating slightly around the US$0.72/Wp level for the last 18 months. This pricing, at an estimated cumulative PV module shipment volume of 149GWp, indicates a trend change for the PV industry. C-Si module pricing appears to be currently above the production cost and should therefore yield a profit margin. However, there is still a mismatch between manufacturing capacity and future market demand. A closer look at the pricing figures reveals that there is no indication to give the allclear during the ongoing consolidation process in the PV industry. C-Si module pricing is not reflecting the
increase in polysilicon and wafer prices, and therefore the pressure to reduce the cell and module conversion costs remains a looming fact. This paper describes state-of-the-art c-Si cell manufacturing solutions that are in line with identified trends in materials, processes and products recently published in the 5th edition of the International Technology Roadmap for Photovoltaic (ITRPV). Currently available c-Si cell technologies offering higher efficiencies as well as materials savings will be discussed. The need for implementing these technologies in mass production without significantly increasing the cost per piece and in the face of more complex manufacturing processes will be established. The findings of the ITRPV regarding the reduction in levelized cost of electricity (LCOE) will be discussed, leading to the conclusion that contemporary cell technology supports the long-term competitiveness of PV-based power generation.

L3dwLWNvbnRlbnQvdXBsb2Fkcy9sZWdhY3ktcHVibGljYXRpb24tcGRmcy82ZWUyMTU4ZTVkLXN0YXRlb2Z0aGVhcnQtY3NpLWNlbGwtbWFudWZhY3R1cmluZy10cmVuZHMtaW4tbWF0ZXJpYWxzLXByb2Nlc3Nlcy1hbmQtcHJvZHVjdHMtaWRlbnRpZmllZC1pbi10aGUtNXRoLWVkaXRpb24tb2YtdGhlLWl0cnB2LXJvYWRtYXAucGRm

Published In

PVI Issue
Signs earlier in the year of the global industry entering a growth phase have now been confirmed beyond any doubt. Almost all the big-name suppliers have now announced some form of manufacturing capacity expansion, a trend that analysts agree will only gather pace as long as the levels of demand predicted over the next few years turn out to be correct.

Read Next

PVI Paper
Cell Processing, Photovoltaics International Papers
This paper presents preliminary results of SERIS’ biPolyTM cell: the bifacial application of polysiliconbased passivating contact stacks with front and rear screen-printed and fired metallization.
PVI Paper
Cell Processing, Photovoltaics International Papers
This work reports the latest results obtained at Jolywood for full-area (251.99cm2) n-type bifacial passivating-contact solar cells using a cost-effective process with industrially-feasible boron diffusion, phosphorus ion implantation and low-pressure chemical vapour deposition (LPCVD) with in situ oxidation.
PVI Paper
Cell Processing, Photovoltaics International Papers
This paper reviews the key technology improvements which have enabled a continuous 0.5%abs/year increase in efficiency of industrial PERC and PERC+ cells.
PVI Paper
Photovoltaics International Papers, Thin Film
This paper provides a concise overview of existing c-Si-based 2-, 3- and 4-terminal tandem technologies, summarizes the current development status, and sets out the future roadmap. In addition, a discussion is included of what will be required over the coming years to bring these promising technologies to market, enabling commercial efficiencies above 30%.
PVI Paper
Photovoltaics International Papers, Thin Film
This paper discusses, at both the cell and the module level, the balance between the advantages and drawbacks of increasing the cell bifaciality from a typical value of 90% towards 100%, or decreasing it towards that of monofacial cells (0%).
PVI Paper
Photovoltaics International Papers, PV Modules
Because it leads to higher efficiencies than aluminium back-surface field (Al-BSF) cells, passivated emitter and rear cell (PERC) technology is attracting more and more attention in the industry and gaining market share. However, PERC technology brings new challenges with regard to the phenomenon of degradation: some monofacial/bifacial PERC cell modules were found to demonstrate much higher power degradation than Al-BSF cell modules after damp-heat (DH: 85°C and 85% relative humidity RH, 1000h) and potential-induced degradation (PID: 85°C and 85% RH, –1,500V, 96h) tests, which will be the focus of this paper.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
March 9, 2021
Solar Media Events
March 17, 2021
Solar Media Events
April 13, 2021
Solar Media Events
April 20, 2021
Get 50% off!
Subscribe before 5th of April 2020!