Bifacial solar modules boost yields by up to 23% in new study

Share on facebook
Share on twitter
Share on linkedin
Share on reddit
Share on email
Image: JA Solar.

Bifacial double-glass solar modules have increased power yields by up to 23% compared to monofacial counterparts a study conducted in China by JA Solar and TÜV Rheinland has found.

The study compared the power generation performance of bifacial double-glass modules developed by JA Solar with monofacial mono modules, connected with different inverters and racking systems, in an attempt to provide reference points for customers when selecting modules.

Four particular arrays were modelled within a state-owned 100MW PV power plant in Delingha, Qinghai, China, with testing conducted by independent technical testing provider TÜV Rheinland.

The first array combined JA Solar-made bifacial double-glass 310W modules with a horizontal uniaxial rack and a string inverter, while the other three test arrays all used 310W monofacial modules from unnamed manufacturers. Distributed, centralised and string inverters were used on these three arrays, while the racking was also adjusted.

The arrays neighbour each other and were built on the same land type, were designed and constructed by the same construction team using the same construction cycle and grid-connected time, and all were export-unlimited arrays.

Sample data was taken between 6 June 2019 and 19 October 2020, with a total of 485 days worth data was collated after some data abnormalities were removed.

TÜV Rheinland conducted consistency tests on the performance and quality of the modules to ensure objectivity of the data comparisons.

The results compiled by TÜV Rheinland, which had taken into account the impact of the tracking bracket on performance, show that the bifacial array produced between 15.4% and 23.3% more power compared to the monofacial arrays of different tilt and inverter technology, results which JA Solar said demonstrated the “excellent power generation performance” of bifacial modules over monofacial.

“The result of the test once again validates the excellent power generation performance of JA Solar bifacial double-glass module, enabling it to become a good choice to guarantee ROI for downstream customers,” JA Solar said.

Read Next

PV Tech Premium
April 26, 2021
LONGi’s ascent to the top of the solar module shipments league table captured headlines last week, but it also cements the view that consolidation in the sector is inevitable, with an oligarchy of majors dominating market share. Carrie Xiao assesses the prospects of those top five companies as 2021 heats up.
PV Tech Premium
April 20, 2021
New technologies are increasingly being used to enhance solar project economics and boost gains, however the application and modelling of these technologies remains uncertain. This exclusive recording from Solar Finance & Investment Europe sheds a light on those areas.
April 19, 2021
‘Solar Module Super League’ (SMSL) member JA Solar has confirmed its founder and chairman, Jin Baofang had returned to work at the company.
March 30, 2021
‘Solar Module Super League’ (SMSL) member JA Solar has reported PV module shipments of 15.88GW in 2020, up from 10.26GW in 2019, a 54.8% increase year-on-year, setting new records for total shipments and shipment growth.
PV Tech Premium
March 30, 2021
In exclusive analysis for PV Tech Premium subscribers, Mark Osborne scrutinises JA Solar's plans to have 40GW of module assembly capacity by the end of this year, and how it reached that capacity.
March 8, 2021
‘Solar Module Super League’ (SMSL) member JA Solar is planning a new manufacturing hub in Qidong Economic Development Zone, Jiangsu Province, China to operate 20GW of solar cell production and 20GW of PV module assembly.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
May 11, 2021
Upcoming Webinars
May 26, 2021
Session 1 - 7:00 AM (BST) | Session 2 - 5:00 PM (BST)
Solar Media Events
June 15, 2021
Solar Media Events
July 6, 2021