QuintuMod – Development of a low-cost and high efficient solar module using a solar cell with 5-pn junctions

Duration: 02/2021 - 01/2024
Contracting Authority/ Sponsors:
Bundesministerium für Wirtschaft und Energie (BMWi) Fkz: 03EE1088B
Project Partners: AZUR SPACE Solar Power GmbH
Project Focus:     
© Fraunhofer ISE
Outdoor test-setup at Fraunhofer ISE for characterization of concentrator modules from AZUR SPACE. The IV data together with ambient conditions like temperature, intensity and spectral composition of the solar radiation is recorded.
© Fraunhofer ISE
Test setup for measuring a solar cell lens unit at different distance and temperature of the lens and (new in the project) the solar cell.

In the project „QuintuMod”, a reliable, cost-efficient and high efficient CPV module will be developed and optimized. Already today, in concentrator photovoltaics (CPV) the highest efficiencies for the conversion of solar energy to electrical power are achieved. Furthermore, the technology has advantages regarding transport, recycling and sustainability. In the project, a novel multi-junction solar cell with 5 pn-junctions will be introduced in the CPV module from AZUR SAPCE and optimized for highest module efficiency. The target is to achieve a module efficiency of 34% at CSTC (concentrator standard test conditions) and at least 32% at CSOC (concentrator standard operating conditions). By evaluating the electrical performance at different locations, a simulation procedure will be developed. With this method, well-founded energy yield calculations will be possible. This is important data for an economical evaluation of CPV power plants that are especially beneficial to be installed in locations with high direct radiation. 

In the project, Fraunhofer ISE is responsible for the electrical characterization of the five-junction solar cells indoors and the modules in outdoor measurements. Therefore, existing measurement equipment like an EQE test rig or a cell-lens-test setup will be adapted. With this, measurements at cell temperatures anticipated during operation (to 90°C) will be possible. Within the project, different technology generations will be evaluated and an understanding regarding the behavior of the module performance established. Furthermore, Fraunhofer ISE supports the project partner AZUR SPACE in the assessment of the module design by accelerated aging tests and optical and thermal simulations of the primary optics.

An important focus in the project is the evaluation of the energy yield for the CPV modules at different locations and therefore different ambient conditions. At Fraunhofer ISE, methods to calculate the energy yield will be investigated scientifically. With this, the accuracy of the energy yield prediction will be improved.

More Information on this Topic:

Research Topic

High-Concentration Systems (HCPV)

Research Topic

III-V and Concentrator Photovoltaics

Business Area