In 2026, the 1000V high-voltage platform has become a new battleground for automakers.
Recently, a survey by 'Expert Talk on Third-Generation Semiconductors' found that at least 15 automakers and electric drive companies, including BYD, Geely, NIO, Xiaomi, Leapmotor, and GAC, are collectively sprinting towards the kilovolt architecture, promoting the scaled mass production of 1000V high-voltage platforms.
The 1000V platform typically requires 1400V-1500V SiC MOSFETs, and currently, many silicon carbide (SiC) companies are developing high-voltage devices. Recently, the 1400V SiC products jointly developed by AccoPower semiconductor (AccoPower) and AscenPower have achieved mass production and vehicle integration, and have been equipped in multiple high-end new energy vehicle (NEV) models.
15 Automakers Deploy 1000V Platforms AccoPower/AscenPower 1400V SiC Has Achieved Mass Production and Vehicle Integration
According to incomplete statistics from 'Expert Talk on Third-Generation Semiconductors', as of now, a total of more than 10 automakers have deployed 1000V automotive platforms and introduced related models to achieve scaled mass production (for details, please refer to the second part).
Upstream electric drive manufacturers such as Inovance, Zhixin Technology (Shenzhen Zhixin New Information Technology Co., Ltd), INVT, EZ-DRIVE, and Jingwei Hirain have also successively launched 1000V electric drive products (for details, please refer to the second part).
From the actions of the above manufacturers, it can be seen that 800V has gradually become the mainstream for NEVs, while 1000V is the commanding height of the next-generation automotive platform. Combined with SiC technology, 1000V can reduce current, minimize losses and wiring harness weight at the same power level, and compress the 10%-80% energy replenishment time to 5-10 minutes, achieving parity with ICE refueling speeds.
In addition, while 800V high-voltage technology mainly focuses on accelerating energy replenishment and enhancing performance for passenger cars, this round of 1000V technology iteration completely breaks through scenario limitations. Automakers and electric drive companies are no longer just deploying for passenger cars, but are simultaneously focusing on high-power commercial scenarios such as heavy-duty trucks, construction machinery, industrial vehicles, and ships.
As the automotive bus platform voltage increases, SiC MOSFETs also need to be upgraded in voltage. Typically, 800V automotive platforms mainly adopt 1200V SiC MOSFETs and modules. However, according to AscenPower, 1200V SiC MOSFET modules are difficult to adapt to the electric drive systems of 1000V high-voltage platforms. This is because, under the operating condition where the maximum bus voltage reaches 1000V when the vehicle is fully charged, 1200V SiC modules will frequently approach their voltage withstand limit, keeping the system in a critical design state for a long time. For 900V and above voltage platforms, SiC MOSFETs and modules with a rated voltage of 1400V or 1500V can provide reliable safety guarantees for NEVs.
To meet the scaled demand for 900V and above high-voltage electric drive platforms, some leading SiC companies have been collaborating with automakers and electric drive companies to develop 1400V and above silicon carbide products for a long time, including AccoPower and AscenPower.
According to introductions, the second-generation silicon carbide (SiC) chips of AccoPower and AscenPower take 1400V as the native design target, and have recently achieved breakthroughs in mass production and vehicle integration.
On September 14, AccoPower announced that the second-generation 1400V SiC main drive chips and power modules jointly developed with AscenPower have officially achieved scaled mass production, and have been mass-produced and integrated into multiple electric drive platforms, successfully equipping multiple high-end NEV models.
According to introductions, the actual breakdown voltage typical value of the second-generation SiC chips from AccoPower and AscenPower is about 1700V, the cumulative high-temperature bias stress test reaches 2000 hours, and the specific on-resistance is reduced by another 29% compared to the previous generation.
At the same time, in terms of packaging, relying on its self-developed high-end module packaging technology and complete packaging and testing capabilities, AccoPower forms a two-way empowerment with AscenPower's chip design and manufacturing, effectively reducing stray inductance and thermal resistance, and significantly decreasing switching losses under high-frequency operating conditions.
AccoPower further revealed that, in addition to the 1400V second-generation chips mass-produced and delivered this time, the third-generation full-series chips jointly developed by both parties have been designated by multiple automakers for their main drive projects.
As of now, AccoPower and AscenPower have jointly completed the R&D of two generations of automotive-grade SiC chips and achieved mass production and vehicle integration. The specific time nodes are as follows:
In mid-2025, both parties achieved batch vehicle integration and mass production of the first-generation silicon carbide (SiC) chips, laying the technical and market foundation for the scaled deployment of the second-generation 1400V SiC chips;
In May 2026, AscenPower's second-generation 1400V SiC MOSFET main drive chip + AccoPower's power module completed the 'chip + module' test assessment, received customer design wins, and entered small-batch delivery;
In September 2026, AccoPower and AscenPower transformed the second-generation 1400V SiC product solution into scaled mass production results as scheduled.
1000V NEVs Accelerate Deployment 15 Companies Including BYD/GAC/Geely Have Deployed
Since March 2025, when BYD took the lead in releasing the full-domain 1000V architecture, Leapmotor, Chery, Bulletrux, JAC, Changan, GAC, Dongfeng, Geely, and other automakers have simultaneously followed up, accelerating the deployment of 1000V high-voltage platforms. The specific situations are as follows:
BYD Auto: In March 2025, BYD took the lead in releasing the full-domain 1000V architecture, adopting self-developed 1500V SiC power chip and module technology; in March 2026, based on the kilovolt architecture, BYD announced the second-generation Blade Battery and flash charging technology and launched multiple SiC models, indicating that its kilovolt architecture technology has matured.
Leapmotor: In October 2025, Leapmotor announced the launch of the D platform, where the pure electric SUV D19 adopts a full-domain 1000V e-powertrain system, with a comprehensive power of 540 kW, a 0-100 km/h acceleration of just over 3 seconds, and the ability to replenish energy for a range of over 350 km in 15 minutes.
Chery Automobile: In October 2025, it publicly released the Mars architecture, which supports the 1000V high-voltage platform;
Bulletrux: In October 2025, it launched the 1000VDC high-voltage full-domain platform, equipped with a new generation of SiC power modules, supporting energy replenishment for over 400 km in 30 minutes, specifically designed for next-generation NEV intelligent heavy-duty trucks.
JAC Motors: Its DEFINE-S model is pre-set with a 1000V high-voltage platform, driving a three-motor system to burst a total power of 590 kW, achieving acceleration performance comparable to supercars, and featuring FAEB forward emergency braking assistance and a high-performance braking kit.
Changan Deepal and StarPower: On March 27, 2026, Deepal Auto, under Changan Automobile, announced that its one-millionth electric drive has officially rolled off the production line, while simultaneously releasing the new-generation Yuanli Super-Integrated Electric Drive technology, the latter of which adopts 1000V SiC embedded power module technology.
GAC Group: In May 2026, GAC Group exhibited an embedded SiC chip power module at the Beijing Auto Show, with a voltage rating of 900V and a stray inductance of only 1.54 nH. In August 2025, GAC once revealed the application of SiC electronic control systems and other technologies on the engine side of range extenders, which can operate well under the 1000V high-voltage platform.
Dongfeng Motor: On July 29, 2026, Dongfeng Motor R&D Center announced that its kilovolt electric drive product prototype has rolled off the production line. This kilovolt electric drive is equipped with a 1500V voltage-withstand SiC power module, covering a voltage range of 450V to 1000V, with a peak power of 300 kW, compatible with the 800V platform and expandable up to 1200V.
Geely Auto: On September 4, 2026, Zhejiang Geely Holding Group revealed that it is developing a 1000V high-voltage whole-vehicle architecture, aiming to significantly reduce the charging time of electric vehicles. Geely stated that this 1000V high-voltage platform is expected to shorten the time to charge the vehicle from 10% to 80% to within 5.5 minutes.
Tesla: In September 2026, Tesla announced the launch of the Semi electric semi-truck in Europe. In December 2022, Tesla's first Semi electric semi-truck using a 1000V powertrain was successfully delivered.
In addition to automakers, electric drive companies such as Inovance, Zhixin, INVT, EZ-DRIVE, and Jingwei Hirain have all proactively deployed 1000V electric drive products:
Inovance: In May 2025, Inovance's high-voltage 1000V multi-in-one controller was publicly unveiled. This product highly integrates multiple modules such as the main drive motor controller, auxiliary drive motor controller, PDU, DCDC, and electrical accessories, and can adapt to the requirements of various vehicle types such as mining trucks, loaders, excavators, and industrial vehicles.
Zhixin Technology: On May 26, 2026, Zhixin Technology announced that the first FT0 coaxial distributed electric drive 3-in-1 prototype has officially rolled off the production line. It is reported that this prototype features 800V/1000V dual-voltage adaptation, with a maximum system peak power of over 400 kW (at 1000V).
INVT: On June 29, 2026, INVT revealed on the investor platform that its NEV power TA54 product is the first in the heavy-duty truck industry to achieve a 1000V@700kW SiC parallel drive main control multi-in-one product, applied in high-power drive fields such as large buses, heavy-duty trucks, construction machinery, and ships.
EZ-DRIVE: On July 27, 2026, EZ-DRIVE announced on its official WeChat account that its first self-developed 800V high-voltage coaxial electric drive assembly has successfully completed the A-sample rollout. It is reported that this electric drive system is developed based on a 750V rated high-voltage platform, expandable and compatible to support up to 1000V voltage, perfectly adapting to the mainstream 800V high-voltage whole-vehicle architecture.
Jingwei Hirain: On September 2, 2026, Jingwei Hirain issued an announcement that the first batch of 1000V high-voltage platform heavy-duty truck electric drive axles jointly developed with Tri-Ring Auto Axle has successfully rolled off the production line, and simultaneously carried out announcement type tests, 3C certification tests, and Ministry of Transport standard compliance certification. It is expected to achieve small-batch vehicle installation and delivery by the end of the year and be put into real-scenario operation.
This article is published by [Expert Talk on Third-Generation Semiconductors], focusing on industry observations of third-generation semiconductors (silicon carbide and gallium nitride).