What is a battery energy storage system?

A battery energy storage system (BESS) is an electrochemical device that charges from the grid or a power plant and then discharges that energy to provide electricity or other grid services when needed.

Who uses battery storage?

Battery storage is a technology that enables power system operators and utilities to store energy for later use.

Are new battery technologies a risk to energy storage systems?

While modern battery technologies, including lithium ion (Li-ion), increase the technical and economic viability of grid energy storage, they also present new or unknown risks to managing the safety of energy storage systems (ESS). This article focuses on the particular challenges presented by newer battery technologies.

What is behind-the-meter energy storage?

Behind-the-meter energy storage systems enable consumers to draw energy from the grid and store it for later on-site use or to enable better use of any onsite generation, such as rooftop solar. These systems can alter a consumer’s demand profile.

Do electric energy storage systems need to be tested?

It is recognized that electric energy storage equipment or systems can be a single device providing all required functions or an assembly of components, each having limited functions. Components having limited functions shall be tested for those functions in accordance with this standard.

What can a battery do in a co-located project?

In a co-located project like a solar park developed alongside a battery, the battery can store the solar-generated power, to be exported later, at the evening peak. Behind-the-meter energy storage systems can be used to alter a consumer’s demand profile.