Researchers in France have tried to predict the competitiveness of tandem PV modules against commercial crystalline products in 2030. Crystalline products will be 22-24% efficient in a decade, according to the researchers, possibly 25% if interdigitated back-contact heterojunction versions become mainstream. To compete, tandem devices will need to offer similar life spans and degradation rates, plus efficiencies of 30%.
The EU-funded Nextbase project aims to manufacture heterojunction, interdigitated back-contact solar modules for less than €0.275/W. Solar panels featuring the Nextbase cell tech are expected to have a conversion efficiency of 23.2%, according to the European Commission.
The authorities in Beijing, concerned at ever greater solar production capacity announcements and oversupply fears, are preparing to introduce standards which would bring the recent mono Perc production explosion to a shuddering halt.
Valoe Corporation has extended its €3.5m convertible bonds issuance but with investors fleeing to safe havens and Lithuania yesterday announcing COVID-19 quarantine measures, hopes of getting cell manufacturing off the ground in Vilnius this month appear unrealistic.
A convertible bond issuance by Valoe Corp is due to expire on Sunday and the board has already been forced to sign up for more than 40% of the investment. The module maker, which is still attempting to pay for a cell line acquired from Solitek last year, has been announced as a technology partner by Munich-based Sono Motors.
Researchers from Saudi Arabia’s King Abdullah University of Science and Technology have created flexible solar cells made of crystalline silicon. They claim to have stretched a crystalline silicon cell’s surface by around 95% while maintaining conversion efficiency of around 19%.
Among n-type manufacturers, SunPower, Panasonic, and LG had the leading roles in interdigitated back contact (IBC), heterojunction (HJT), and tunnel oxidized passivated contact (TOPCon), respectively. But Chinese cells with low cost and high efficiency trends have been on the rise. In the future expansion of n-type production lines, the power of Chinese cell manufacturers and equipment makers can’t be underestimated.
The PV maker plans to shift its 800 MW of E-Series production to its new NGT technology, as it records a massive loss on depreciation of its old equipment. The move was revealed in second-quarter figures featuring plenty of red ink.
Trina Solar has set a new record of 25.04% total area efficiency for an n-type interdigitated back contact (IBC) solar cell. The record has been independently verified by Japan Electric Safety and Environmental Technology Laboratory.
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