Energy storage system battery test

What is energy storage performance testing?

Performance testing is a critical component of safe and reliable deployment of energy storage systems on the electric power grid. Specific performance tests can be applied to individual battery cells or to integrated energy storage systems.

What is a battery energy storage system?

Battery Energy Storage Systems (BESS) are expected to be an integral component of future electric grid solutions. Testing is needed to verify that new BESS products comply with grid standards while delivering the performance expected for utility applications.

What is battery capacity testing?

Capacity testing is performed to understand how much charge / energy a battery can store and how efficient it is. In energy storage applications, it is often just as important how much energy a battery can absorb, hence we measure both charge and discharge capacities.

What is a stored energy test?

The goal of the stored energy test is to calculate how much energy can be supplied discharging, how much energy must be supplied recharging, and how efficient this cycle is. The test procedure applied to the DUT is as follows: Specify charge power Pcha and discharge power Pdis Preconditioning (only performed before testing starts):

What is a battery energy storage system (BESS)?

One energy storage technology in particular, the battery energy storage system (BESS), is studied in greater detail together with the various components required for grid-scale operation. The advantages and disadvantages of diferent commercially mature battery chemistries are examined.

Are batteries a viable energy storage technology?

Batteries have already proven to be a commercially viable energy storage technology. BESSs are modular systems that can be deployed in standard shipping containers. Until recently, high costs and low round trip eficiencies prevented the mass deployment of battery energy storage systems.