How to test the eol of the energy storage system

What is end-of-life (EOL) & how does it affect battery performance?

Typically, end-of-life (EOL) is defined when the battery degrades to a point where only 70-80% of beginning-of-life (BOL) capacity is remaining under nameplate conditions. Understanding temperature impact on battery performance is equally important to understanding degradation performance from a control or energy dispatch perspective.

What is the starting Soh and EOL of a battery?

For all applications the starting SoH is assumed to be 80% and the EoL is set to 60%. The graph shows the degradation of the battery operating in the FCR market, the intraday market and the day-ahead market with two different SoC limitations: 5–95% and 20–80%. The FCR application is modelled only with the air-cooled temperature model (solid line).

What is end-of-life testing for battery packs?

In this exploration, we delve into the intricate process of End-of-Life (EOL) testing for battery packs, dissecting each crucial step that contributes to their robustness, safety, and sustainable management.

Is energy storage device testing the same as battery testing?

Energy storage device testing is not the same as battery testing. There are, in fact, several devices that are able to convert chemical energy into electrical energy and store that energy, making it available when required.

What is a constant EOL threshold?

A constant EOL threshold at SOH EOL = 80 % as well as an interest rate of i = 7. 5 % are considered for all simulations. 3.4. Impact of scaling aging cost and increasing lifetime profitability by accounting for the interest rate

Where is the battery energy storage system located?

The battery energy storage system, which is going to be analysed is located in Herdecke, Germany . It was built and is serviced by B e lectric. The nominal capacity of the BESS is 7.12 MWh, delivered by 552 single battery packs, which each have a capacity of 12.9 kWh from Deutsche Accumotive.