ZSW sets 21.7% CIGS cell record

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

Researchers at the Centre for Solar Energy and Hydrogen Research (ZSW) in Stuttgart have achieved a 21.7% conversion rate in a CIGS thin-film cell, a new record.

The new efficiency rate, confirmed by the Fraunhofer Institute for Solar Energy Systems, beats the previous record of 21% set earlier this year by Swedish researchers.

Michael Powalla, head of ZSW’s PV division, said the advance extended the efficiency lead of CIGS over multicystalline PV cells by 1.3%, offering the prospects of extending the market reach of CIGS technology.

“Our advances once again confirm the tremendous technological potential of CIGS thin-film photovoltaics.

“The lab data show that further efficiency improvements will be possible in the years ahead. This could drive down the cost of CIGS technology even more sharply.”

The record-setting cell had an area of 0.5 cm², a standard size for such tests. It was manufactured in a laboratory coating plant using a co-evaporation process that ZSW said was highly reproducible in the lab. The body said the fact it had made 40 cells that topped the 21% efficiency rate indicated the method lent itself to industrial mass production.

Powalla said that it would be some time before commercially available modules reflected this new efficiency level, but said CIGS modules of 17-19% would be possible in the “next few years”. Current CIGS modules on the market are rated at around 15% as the physical area of modules makes them less efficient than the cells.

Nevertheless ZSW said the new record improved the chances of CIGS thin-film technology gaining a larger market share.

This will be particularly to the benefit of manufacturing equipment Manz, which jointly developed the technology with ZSW and plans to incorporate the efficiency boost into its manufacturing processes.

20 October 2021
Utility-scale solar is evolving, shaped by higher power modules and demand for increasingly lower levelised cost of electricity (LCOE). Those trends are also changing project requirements elsewhere, with inverters capable of delivering high power density and power capacity in strong demand. In this webinar, FIMER will detail how its innovative high-power, multi-MPPT string inverter and modular conversion solution can both meet those demands and transform the utility-scale solar sector for the better.
20 October 2021
The race is on but we need to sprint… With global climate talks fast approaching and time running out to prevent the most disastrous impacts of climate change, now is the time to act. The Summit will explore the opportunities that emerge from taking action on climate change and provide a clear pathway forward for governments, citizens and companies. Taking place just 10 days before the G20 meeting in Rome, on 30-31 of October, and in the lead up to the critical COP26 meeting in Glasgow from 31 October–12 November, this event will be instrumental in influencing ambitious global action.
10 November 2021
The solar tracker market continues to mature at breakneck speed, with designs and component selections becoming ever-more complex in the pursuit of better project economics. But a more simplistic design could deliver a triple benefit of lower Capex, EPC and Opex costs. This webinar will set out the ideal single axis tracker design for utility-scale solar farms. The design leapfrogs from decades of experience, with a comprehensive understanding and attention to the three cost structures of Capex, EPC and Opx. Sun and Steel Solar has prototyped a single axis tracker designed to deliver up to US$0.03/W in real savings compared to existing single axis trackers on the market. That’s US$30 million for every gigawatt deployed.
15 November 2021
The 10th edition of the famous Metallization and Interconnection Workshop, MIW2021, will take place in the Thor Central venue in Genk, Belgium, on Monday, November 15, and Tuesday, November 16, 2021 as a face-to-face meeting. We are longing for direct exchange of knowledge and ideas after a long time. Hopefully you can be part of it! But of course, the organizors will keep an eye on the evolution of the Covid pandemic. It will be assess carefully, whether the workshop can be held without major risks or excessive restrictions. We are looking forward to exciting talks, discussions and meetings and to welcoming you in Genk!
23 November 2021
The solar, storage and EV industries in the UK are going from strength to strength. There is no better place for the community to meet, share ideas and do business than Solar & Storage Live from 23-25 November at the NEC.There’s something for everyone; more than 150 exhibitors, a high-level conference, a start up and innovation zone, a poster zone, strategic partners to network with and much more. 
1 December 2021
Understand fully the technical and logistical supply chains that determine the production and performance of solar modules, including all related factors impacting quality, reliability & bankability. This event will be run online with streamed content, access to session recordings and chat/messaging tools for delegates to connect.

Read Next

October 19, 2021
Funds managed by private equity firm Antin Infrastructure Partners have secured a deal to acquire a majority stake in US solar and storage developer Origis Energy.
October 19, 2021
Lightsource bp has announced its entry into Poland’s solar market through a co-development deal which will see the developer proceed with a 757MWp pipeline in the country.
October 19, 2021
Shortlisted bids in Saudi Arabia’s latest solar tender have jumped significantly on the lowest price recorded in the country’s previous renewables programme, reflecting the hikes in PV equipment costs in recent months.
October 19, 2021
The White House has said renewables are still key to its budget reconciliation bill despite rumours of the investment tax credit (ITC) being modified as opposition to the bill by senators Manchin and Sinema continue
October 19, 2021
Europe's energy crisis can be a boon for renewables deployment on the continent by bolstering business cases, but familiar foes such as grid constraints will still need to be hurdled in the coming years.
October 19, 2021
Solar tracker manufacturer Soltec has signed a framework agreement with renewables developer Acciona Energia to supply trackers over a three-year period.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
November 10, 2021
8am (PST) | 5pm (CET)
Solar Media Events
December 1, 2021