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 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 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 performance testing?

Performance testing is focused on testing the integrated system unit to ascertain the unit power rating, energy capacity and efficiency characteristics. The types of performance tests that could be executed are outlined in Table 5.

What is a specific performance test?

Specific performance tests can be applied to individual battery cells or to integrated energy storage systems. Battery cells can be tested for both reference performance (e.g., capacity and efficiency) and for life-cycle performance (e.g., cycle-life for a specific intended use).

What is EES performance test?

Scope: This recommended practice focuses on the performance test of the electrical energy storage (EES) system in the application scenario of PV-storage-charging stations with voltage levels of 10 kV and below.