Battery Energy Storage Systems
                     Battery Energy 
Storage Systems
Battery Energy Storage Systems (BESS) are designed to store energy in 
batteries for later use. They are becoming increasingly popular as 
renewable energy sources such as solar and wind become more 
common.
 
Applications of BESS
Building Energy Electric Vehicle Grid Stabilization
Management Charging
BESS can be used to provide 
BESS can be used to store BESS can be used to store ancillary services to the grid, 
excess energy produced by energy for electric vehicle such as frequency regulation 
buildings with solar panels charging stations, which and voltage control.
for later use. helps reduce peak demand 
on the grid.
Benefits of BESS
1 Efficient 2 Flexible
BESS can reduce energy waste by BESS can be easily integrated into 
storing and releasing energy when it is existing infrastructure and can be 
needed, reducing the need to burn scaled up or down depending on 
fossil fuels for power generation. energy demand.
3 Reliable 4 Sustainable
BESS can ensure a reliable supply of BESS can help reduce greenhouse gas 
energy, particularly in areas with poor emissions by enabling the use of 
grid infrastructure or prone to power renewable energy sources.
outages.
Different Types of BESS
Lithium Ion Batteries Flow Batteries
Small and lightweight, these batteries have large and heavy, these batteries store 
high energy density but may be subject to energy in tanks and are ideal for long-
thermal runaway. duration storage applications.
Supercapacitors Lithium Polymer Batteries
Used for short duration energy storage, Similar to lithium-ion batteries but with a 
these batteries can be charged and solid polymer electrolyte, these batteries 
discharged quickly and have a long cycle are more flexible and stable, but may have 
life. lower energy density.
Design Considerations for BESS
System Efficiency
BESS should be designed to minimize 
energy losses and maximize efficiency.
1 2 3
System Capacity Safety
BESS should be sized appropriately for BESS should be designed with safety 
the load it is intended to serve. features such as temperature sensors and 
overcurrent protection to prevent thermal 
runaway and other hazards.
Use Cases
Residential Grid Stabilization Electric Vehicle 
Energy Storage Charging
BESS can be used to store 
BESS can be used to store excess energy during times BESS can be used to store 
energy from residential solar of low demand and release it energy for electric vehicle 
panels for use during times back into the grid during charging stations, reducing 
when the panels are not peak demand to help the need for additional power 
producing enough energy. stabilize the grid and prevent generation and reducing 
blackouts. strain on the grid.
Future of BESS
Increased Cost Reduction New Applications
Efficiency
As demand for BESS BESS are expected to 
BESS technology is increases, economies of play an increasingly 
rapidly advancing, and scale are expected to important role in a variety 
improvements in battery drive down costs and of applications, including 
chemistry and design are make BESS more electric vehicle charging, 
expected to significantly accessible and grid stabilization, and 
increase efficiency. affordable. disaster response.