onsemi and Sungrow have integrated onsemi’s latest EliteSiC silicon carbide (SiC) hybrid power module technology into the PowerTitan 3.0 energy storage platform for utility-scale battery energy storage systems (BESS), improving inverter-level efficiency by 0.4%.
The companies said utilities and energy providers face growing pressure to store and deliver energy more efficiently as electricity demand rises with AI infrastructure and electrification. Sungrow adopted the technology for PowerTitan 3.0 to improve system efficiency and increase usable energy output while lowering operating costs.
PowerTitan 3.0 incorporates onsemi’s high-density power integrated modules (PIMs), optimized for advanced three-level inverter architectures in high-power energy storage applications. The architecture supports power conversion units rated up to 450 kW. Key features include peak efficiency exceeding 99.3%; increased power density for higher-power BESS deployments; enhanced thermal performance; and a hybrid SiC design optimized for large-scale deployment.
According to onsemi analysis, the 0.4% efficiency improvement could save more than 475 MWh of energy annually in a 100 MW battery energy storage installation compared with the previous-generation module. The architecture also enables higher overload capability and improved thermal performance. Sergio Fissore, vice president and general manager of onsemi’s IPD Power Division, said that even small improvements in power conversion efficiency can have a meaningful impact on BESS performance and total cost of ownership.
Sungrow estimates delivering 10 GWh of PowerTitan 3.0 across Europe in 2026.
