At Intersolar Europe in Munich, various companies presented their concepts for powerful Perovskite Tandem Photovoltaïschens. The first modules are expected to be available in the second half of the year. The different approaches by manufacturers are clear.
Anyone who ran with his eyes open through the corridors of the Intersolar Europe in Munich could, in addition to standard module technologies such as Topcon and Heterojunction, double-sided and with back contacts, other modules that are not in line with the mainstream and are currently waiting for a breakthrough. Particularly striking were the colored Morph color modules from Megasol, which were not only shown in brilliant glitter colors, but also in variable cuts for roofs and facades. The Swiss manufacturer also presented his new white solar module for the first time. According to the manufacturer, the colored modules can reach up to 94% of the output of standard black modules.
The future dental modules are expected to score points without any loss of performance, but with a significant increase in efficiency. Prototypes of Oxford PV, Huasun, Micrquanta, GCL and others were already on the Trade Fair.
Oxford PV has already stopped the production of his first generation of perovskiet toothem modules and will launch the second generation in the second half of the year. The standard major modules of the Centaur Series are expected to have an efficiency of 25%. The route map then calls to launch the third generation, with 26% module, in 2026, Laura Miranda Perez, Chief Communications and Sustainability Officer, said PV -Magazine. The guarantees for module performance are expected to increase year after year. The second generation already has a 20 -year guarantee and the third generation even strives for a 30 -year guarantee, Miranda Perez said. The company recently announced that the Trinasolar had granted the license to commercialize its technology on the Chinese market.
Oxford PV follows a tandem approach at cell level. The symmetrical heterojunction base is treated with perovskiet layers after passivating and then contacted. Interestingly, Oxford PV continues to use undivided full cells. In addition to the Centaur Series, there will be a Pegasus series. The manufacturer is planning to develop particularly powerful modules for special applications with partners, to adapt them to applications such as space travel, aviation, telecommunications and other specialized applications.
A similar cell-based approach was clearly at the unveiling of the tandem prototype at Huasun. From 2026 the company is planning to launch an 800 W module with heterojunction tandem cells. Many details were not announced during the launch. However, the company intends to “seamlessly” integrate the steps of the Perovskite production into the production of heterojunction cell production. The processes at low temperature would have a particularly low carbon footprint. The long -term goal is to achieve cell efficiency in the mass production of more than 30%.
The Chinese company Micrquanta, which was first represented at Intersolar, uses a different approach. The modules, which are already being sold in China and are now also expected to get a foothold on the European market, are designed as a few perovskiet or as dental modules. The single modules have a reddish color and, as glass laminates, are partially transparent. Their output is 140 W to 160 W per square meter. Coated roof tiles with a lower output are also available.
Image: Cornelia Lichner/PV Magazine
In the dental module, the perovskiet thin film is above the silicon cell layer of the module. Both the silicon and the perovskiet layers also have their own connecting boxes because the outputs of the respective layers are too different. A series of such modules therefore requires two inverters, one for the perovskiet and one for the photovoltaic silicon, such as Yang Chen, director of foreign business development, explained. Micrquanta already has a Perovskite production facility with an annual production capacity of 100 MW.
GCL also presented a single and a dental module with a similar approach in Munich. The single prototype has an efficiency of 19.04% at a size of 2 meters by 1 meter. The dental module is expected to have an efficiency of 26.36% at the same size. GCL is planning to market the modules in 2026 and works, among other things, so that the two connectors can be connected to an inverter with two MPPTs.
The race for the tandem modules has therefore started, and in addition to the question of who can deliver the highest electricity, there is also the issue of the best route to the goal.
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