JinkoSolar has used its Global Tech Day in Shanghai to position itself at the intersection of solar, energy storage and artificial intelligence. The event brought together customers, academics and industry leaders to examine how photovoltaic and storage technologies can support higher energy yields, stronger project returns and more resilient power systems.
The company unveiled Tiger Neo 5.0, a residential module based on its new TAC, or TOPCon based Amorphous Si Passivating Cell, technology. The first commercial version is an all-black 48 cell module with maximum output of 510 W and module efficiency of 25.52%. Its power temperature coefficient is -0.24% per degree Celsius, which JinkoSolar says supports better energy production in hot climates.
TAC uses a 2 plus 1 architecture that combines two cell technologies with one structural optimisation. It applies heterojunction passivation to the p type emitter, tunnel oxide passivated contacts to the n type region, and places both electrodes on the rear of the wafer. This removes front side metallisation, reduces optical shading and allows greater light absorption.
JinkoSolar says the approach delivers peak cell efficiency of 28%, close to the theoretical limit for monocrystalline silicon. The company also reports that Tiger Neo 5.0 provides about 30 W more power than conventional back contact products, while offering a deeper and more uniform black appearance for villa and premium residential rooftops.
The launch reflects JinkoSolar’s move from a single technology approach toward application specific products. The company says Tiger Neo 3.0 TOPCon modules will remain central for utility scale plants, commercial and industrial projects, data centres, agrivoltaics, floating solar, desert installations, solar to hydrogen projects and other demanding applications. It argues that high power, high bifaciality and strong low light performance remain decisive for lowering levelised cost of electricity and improving project returns.
JinkoSolar also highlighted the role of artificial intelligence in research and development. With more than 700 GW of TOPCon based installations worldwide, the company says it is using field performance data, installation conditions and climate information to build simulation models and accelerate technology development.
Jinko ESS
Jinko ESS, a subsidiary of JinkoSolar, is progressing a 220MWh battery energy storage portfolio in Germany. The portfolio combines green and grey battery energy storage systems with planned photovoltaic capacity under a hybrid power purchase agreement strategy.
The project is designed to shift energy across time, balance variations in solar output and respond to market signals. Jinko ESS says this can improve the commercial value of renewable generation while supporting grid stability.
The storage portfolio uses the Jinko Tera liquid cooled energy storage system, which has a capacity of 5.01MWh. The system offers three times grid forming capability for 10 seconds, black start capability and fast frequency regulation. Its tested round trip conversion efficiency is 94.1%, and it has a 20 year design life.
Roberto Murgioni, General Manager of Jinko ESS Europe, said the company was proud to support the 220MWh portfolio in Germany. He said the project demonstrated what close collaboration could achieve and reflected Jinko ESS’s technology, experience and long term support.
For African energy sector stakeholders, the announcements point to a growing focus on application specific solar technology and storage led commercial models. As utilities, developers and industrial users confront grid constraints and variable renewable generation, integrated solar and battery storage solutions are likely to become increasingly relevant across the continent.
Author: Bryan Groenendaal

 






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