How is Bess degradation determined?

Since BESS degradation is a consequence of how the battery cells are operated (e.g.; initial and final state-of-charge (SOC) values within each cycle), we propose the use of a technique capable of estimating an equivalent degradation factor regardless of their operation.

How to assess Bess degradation in a micro-grid?

To assess BESS degradation, an economic dispatch is carried out, which incorporates the use of a BESS inside a micro-grid. The economic dispatch is formulated as a MILP optimization problem that allows the BESS to supply the electricity demand during an eighthour period of energy autonomy per day.

What are the latest advances in Bess modeling methods?

Then, we conduct a comprehensive study of the latest advancements in BESS modeling methods aimed at three specific objectives: equivalent circuit models for estimating SOC and SOH, degradation models for predicting battery lifespan, and economic models for cost-benefit analysis of deployment projects.

What causes battery degradation in Bess optimization?

It is evident that the perspective of battery degradation in BESS optimization is getting deeper. Its factors vary, such as energy capacity fading, calendar, and cycling aging, battery lifetime, cycle battery, and temperature.

What is a Bess model?

The proposed theoretical framework offers BESS owners tailored modeling methods that address specific prediction objectives, such as optimizing operational efficiency, accurately forecasting degradation, and assessing economic viability.

When is the degradation process extrapolated from Bess data?

Until mid-2020 logged data from the BESS is available and afterwards the degradation behaviour is extrapolated until 2040. The degradation process is modelled with different temperatures, since the seen temperature differences in a BC lead to a capacity spread.