White Paper Overview

Residential Battery Energy Storage Systems (BESS) are essential for maximizing renewable energy use in homes and improving grid stability. These systems store excess solar or grid power for use during peak demand or outages, helping reduce electricity costs and dependence on fossil fuels. Key technologies include high-efficiency inverters using SiC and GaN MOSFETs, intelligent Battery Management Systems (BMS) for safe operation, and advanced charging profiles like Constant Current Constant Voltage (CCCV) to optimize performance and battery lifespan.

This white paper provides a detailed overview of residential BESS design, covering system architectures such as grid-tied, hybrid, and off-grid configurations, as well as AC- and DC-coupled topologies. It explains essential components including solar optimizers, bidirectional inverters, and charge controllers with MPPT capability, while addressing industry safety standards like UL 9540 and IEC 62485.

Engineers will gain valuable insights into converter topologies and power stages—from H-Bridge and HERIC to Dual Active Bridge (DAB) and CLLC converters—used to achieve high efficiency, low harmonic distortion, and reliable bidirectional power flow. The paper includes practical design guidance, system block examples, and component recommendations.