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 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 energy storage performance?

Performance, in this context, can be defined as how well a BESS supplies a specific service. The various applications for energy storage systems (ESSs) on the grid are discussed in Chapter 23: Applications and Grid Services. A useful analogy of technical performance is miles per gallon (mpg) in internal combustion engine vehicles.

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.

Which electrochemical energy storage technology is best?

Of the competing electrochemical energy storage technologies, the lithium-ion (li-ion) battery is regarded as the current leader in terms of volumetric (Whl −1) and gravimetric (Whkg −1) energy density at standard temperature conditions (20 °C) .

Does operating temperature affect the performance of electrochemical energy storage technologies?

The performance of electrochemical energy storage technologies such as batteries and supercapacitors are strongly affected by operating temperature.