Composition of Residential Energy Storage Systems
A residential energy storage system consists of battery cells, a Battery Management System (BMS), an Energy Management System (EMS), a bidirectional energy storage converter, and other supporting systems. The battery is the most crucial component.
Residential energy storage adopts an integrated microgrid design concept, enabling both off-grid and grid-connected operation with seamless switching between modes, significantly improving power supply reliability. Furthermore, residential energy storage systems feature flexible and efficient management systems that can adjust operating strategies based on grid conditions, load, energy storage capacity, and electricity prices, optimizing system operation and maximizing user benefits.
Technical Roadmap for Residential Energy Storage
The mainstream technology for residential energy storage is lithium iron phosphate (LFP), while sodium-ion and lithium manganese iron phosphate (LME) are emerging future pathways.
Energy storage battery technologies include lithium-ion, lead-acid, and flow batteries. Currently, lithium iron phosphate (LFP) batteries, due to their high safety and long cycle life, better meet the design requirements of energy storage batteries compared to ternary lithium batteries, and are the mainstream development route for energy storage batteries. Tesla's energy storage batteries are also gradually shifting from the ternary route to the LFP route. In addition, some companies such as CATL and Pylontech are already conducting research and testing on sodium-ion and lithium manganese iron phosphate (LFP) batteries, and it is expected that the technological routes for energy storage batteries will be further improved in the future.
