Comprehensive Energy Storage System solutions combining power electronics, battery management, sensing, and protection technologies for grid-scale, commercial, and industrial applications.
Battery Energy Storage Systems (BESS) are becoming a critical component of modern energy infrastructure, enabling grid stability, renewable energy integration, energy resilience, and efficient power management. As global electrification accelerates and renewable energy generation expands, utility-scale, commercial and industrial (C&I), and residential energy storage deployments continue to grow. Emerging demands from AI data centers, EV charging infrastructure, and distributed energy resources are increasing the need for high-performance battery energy storage solutions that deliver greater efficiency, reliability, scalability, and lower total cost of ownership (TCO). Modern BESS architectures rely on the seamless integration of Battery Management Systems (BMS), Power Conversion Systems (PCS), and Energy Management Systems (EMS) to support intelligent, bidirectional energy flow and grid flexibility.
onsemi provides a comprehensive portfolio of power semiconductor and system technologies designed to enable next-generation energy storage platforms. These solutions include EliteSiC™ silicon carbide (SiC) MOSFETs, SiC JFETs, IGBTs, hybrid and full-SiC power modules, GaN power solutions, isolated gate drivers, power management ICs, sensing technologies, and connectivity devices. Supporting both AC-coupled and DC-coupled BESS architectures, onsemi technologies help designers improve power density, increase conversion efficiency, reduce switching losses, and support high-voltage systems up to 1500 V and beyond. Advanced solutions for bidirectional AC-DC and DC-DC conversion, distributed energy storage, and intelligent system control help developers optimize battery performance, reliability, and lifecycle value.
Designed for residential solar storage, commercial microgrids, utility-scale renewable energy storage, EV charging ecosystems, and grid modernization projects, our energy storage solutions support the industry's transition toward smarter and more sustainable power networks.
Explore how advanced inverter topology and hybrid SiC power technology help reduce losses, improve efficiency, and maximize usable energy in utility-scale energy storage systems.
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Learn how ANPC topology and hybrid SiC technology can reduce losses, enhance thermal performance, and improve system efficiency in modern ESS designs.
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Explore the latest IGBT module innovations designed for renewable energy systems and eCAVs. The webinar showcases how onsemi delivers high-efficiency, reliable power solutions.
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Our SiC MOSFETs are designed to be fast and rugged and include system benefits from high efficiency to reduced system size and cost. MOSFETs are metal–oxide–semiconductor field-effect transistors with insulated gates. These silicon carbide MOSFETs have a higher blocking voltage and higher thermal conductivity than silicon MOSFETs, despite having similar design elements. SiC power devices also have a lower state resistance and 10 times the breakdown strength of regular silicon. In general, Systems with SiC MOSFETs have better performance and increased efficiency when compared to MOSFETs made with silicon material.
There are many advantages to choosing SiC MOSFETs over silicon MOSFETs, such as higher switching frequencies. High-temperature development is also not a concern when using SiC MOSFET modules because these devices can operate efficiently even in high heat. Additionally, with SiC MOSFETs, you benefit from a more compact product size because all components (inductors, filters, etc.) are smaller.
Explore the diagram handbooks for AC/DC-coupled BESS, featuring converter, inverter, mainstream topologies, auxiliary power, and design guidelines to accelerate efficient ESS development.
Our packages technologies are optimized for superior performance, lower thermal resistance than discrete devices, and easy mounting packages that fit industry standard pinouts.
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A Battery Energy Storage System stores electrical energy in batteries and releases it when needed to support grid stability, renewable integration, and energy cost optimization. BESS enables peak shaving, backup power, and efficient use of solar and wind energy, making it a foundational technology for modern low‑carbon energy infrastructure.
A typical BESS consists of four core elements: battery packs, a battery management system (BMS), a power conversion system (PCS), and an energy management system (EMS). Together, these blocks ensure safe battery operation, bidirectional power flow, system‑level control, and optimized interaction with the grid or local loads.
Bidirectional operation allows a BESS to both charge and discharge efficiently, supporting functions such as grid balancing, peak shaving, and backup power. Selecting suitable topologies and components is essential because power converters are typically optimized for one dominant power‑flow direction, affecting efficiency and thermal performance.
As BESS power levels increase, higher DC bus voltages reduce current, losses, and cable size. Wide‑bandgap devices such as SiC enable higher switching frequencies, improved efficiency, and better thermal performance, supporting compact, high‑power PCS designs while meeting stringent EMI and safety requirements.
By storing excess solar or wind energy and releasing it during peak demand, BESS smooths renewable intermittency and reduces grid stress. In commercial and residential settings, it also mitigates the impact of high‑power EV charging, enabling more efficient energy utilization and lower operating costs.
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