Interview: Sai Charan Kuppili

Technical Director, South & Central Asia at Jinko Solar

TOPCon sits on top of PV technology leaderboard owing to its high-energy density

July 06, 2023. By News Bureau

TOPCon will lead the market in the high-end technology segment, as it will offer the lowest LCOEs and will evolve in multiple ways as the most optimised technology product. It is expected to grab the highest market share and compete with PERC, IBC and/or any other passivated or back contact technology, shared Sai Charan Kuppili, Technical Director, South & Central Asia, Jinko Solar in an interview with Energetica India.

Que: Earlier this year, Jinko Solar unveiled 2nd Generation Tiger Neo Series Modules that provide higher average productivity under low-light conditions. Tell us more about the benefits of these modules along with their technical features.

Ans: Jinko excelled in TOPCon mass production as compared to its peers in the global context right from the initial days of PERT and continues to do so until now, when the market has seen the latest TOPCon variants. We have optimised the technology on the selective emitter process to increase the specific energy yield by reducing the temperature coefficient. The plain TOPCon variant now sets a new benchmark in reducing the loss factor specific to temperature. Thus, relevant metrics which help in increasing specific energy yield are getting better on all fronts.


Que: What is the current market presence of these modules? Are you planning to expand the market in the coming times?

Ans: Currently, TOPCon sits on top of the PV technology leaderboard owing to its high-power density and high-energy density. Most of the PERC manufacturers are transitioning towards TOPCon with increased production capacities. Looking at the market presence perspective, Jinko is the only brand to have manufactured more than 15 GW of TOPCon during 2022 alone. Now, with the technology gaining prominence, we may witness global capacities increase multi-fold as more PERC players initiate their switch to TOPCon. As for us, we have global sales leadership when it comes to N-Type – 10.7 GW in 2022; 60 percent share in 2023 overall shipments; 6 GW in 2023 Q1 alone. Jinko would touch 55-60 GW manufacturing capacity for N-Type TOPCon by the end of 2023.


Que: What according to you are the latest trends and demand drivers in the solar PV market?

Ans: We believe, TOPCon will lead the market in the high-end technology segment, as it will offer the lowest LCOEs and will evolve in multiple ways as the most optimised technology product. It is expected to grab the highest market share and compete with PERC, IBC and/or any other passivated or back contact technology. Since TOPCon has already kick-started its optimisation curve on technology fronts, its different and advanced variants are expected to see the light of day in the next 8-12 quarters.


Que: Besides the Tiger Neo 2023 series, Jinko Solar also introduced SunTank residential energy storage system, SunGiga C&I system and Suntera utility system. Could you shed some light on these recent launches?

Ans: Specific to Energy Storage Solutions (ESS), we earmark ourselves as a solution provider in this segment rather than a product manufacturer, thereby creating sustainable metrics in energy security.

We provide our ESS solutions in the residential segment (RESS) with SUN TANK, distributed generation applications with less than 1 MWh using a cabinet or container with SUN GIGA and utility applications with SUN TERA which has a high energy density of 3.44 MWh in a 20 feet container. These solutions will have better prospects on round trip efficiency, reduced auxiliary consumption, better operational features at varied temperatures under different climatic zones and best-in-class fire safety and protection system. With these characteristics, we are looking at almost a 20 percent reduction in LCOS.


Que: What steps do you take to ensure product safety while maintaining the quality and performance of your products?

Ans: Being a technology leader, Jinko continuously strives to improve the power density of its high-end technology products. At the same time, we focus a lot of R&D on evolving the reliability characteristics by using better composite materials and through our best-in-class process control resulting in higher efficiency and increased energy density for longer tenures. Our products are always top on the metrics of reliability characteristics in most of the 3rd party reliability test reports specific to thermal cycle, damp heat, humidity freeze, PID, LeTID, etc.


Que: How is Jinko Solar leveraging TOPCon technologies to gain a competitive advantage in the Indian market?

Ans: Jinko is the first and only player across the Globe to produce double-digit GW TOPCon capacity during 2022. The challenges are specific to this technology shift were widely experienced and analysed by us to enable capacity expansion to 55 GW of TOPCon manufacturing by the end of CY 2023. High power and energy densities along with other inherent benefits of TOPCon technology, have made Tiger Neo - Jinko’s flagship N Type TOPCon product, the ‘Go-To’ choice for IPPs and Project Developers. EPCs are seeing a clear BOS cost benefit too. 2023 will see more Tiger Neo shipments in India across all verticals.


Que: What are Jinko Solar's future plans and business roadmap for the Indian market?

Ans: Specific to the Indian market, we continue to provide both PERC - Tiger Pro Series & TOPCon - Tiger Neo with 72 cell modules in both monofacial and bifacial variants along with the 78 Cell bifacial variant aiming 635 Wp power. The bifacial variants are with Dual Glass. However, we will maintain the same dimensions for both P & N-type modules, with a 20-25Wp power class benefit on N - Tiger Neo.


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