Introduction
Understanding how your BESS will perform in the future is essential for managing warranties, planning operations, and minimizing financial risk. The new State of Health (SoH) Forecast gives you a clear, forward-looking view of expected battery degradation, so you can make informed decisions long before issues arise.
With SoH Forecasting, you can:
Check long-term compliance with warranty guarantees
Identify potential SoH threshold breaches early
Plan mitigation strategies such as augmentation or maintenance
Strengthen reporting to OEMs, partners, and internal stakeholders
This gives operators, asset owners, and warranty managers confidence in how assets are expected to perform over the next 10 years.
In this article we aim to explain how to use SoH Forecasts in TWAICE platform.
How it works
1. SoH Forecast in the Warranty
Configure the SoH Forecast graph
You can now add dedicated SoH Forecast KPIs to your Warranty dashboard.
Click on Configure KPI Graphs button.
You can choose from three new SoH Forecast KPI options:
State of Health Forecast – Energy-based
State of Health Forecast – ref. Installed DC Energy
State of Health Forecast – ref. Equipment DC Energy
You can adjust the granularity (e.g., weekly or monthly). Note: aggregation method is based on minimum.
Once added, the KPI will appear as a new forecast graph in the Warranty view.
👉🏻 Check out this help article to learn more about different SoH calculations - State of Health (SoH): TWAICE Calculation and Definitions
View the Forecast in the Warranty Dashboard
The SoH Forecast graph includes:
Historical SoH (based on available estimations)
Projected SoH for up to 10 years
Confidence interval to visualize uncertainty
Threshold indicators, if you’ve configured warranty limits
The graph helps you evaluate whether future SoH values remain within expected performance boundaries.
Threshold breach indicators (red triangles), if there are any breaches → which apply exclusively to forecasts (not the confidence interval)
Operational Status panel next to the graph highlights:
Whether any future threshold conditions are expected to be crossed
The Effective Full Cycles (EFC) used for the forecast
The latest forecasted SoH value
This gives you a quick, actionable snapshot of long-term asset health.
⚠️ Note: To calculate the SoH forecast, the system must operate a minimum of 1 EFC per week.
2. SoH Forecast in the Data Explorer
Moreover, you can also deep dive into SoH Forecast with Data Explorer, enabling more flexible data analysis.
Go to Data Explorer and choose Storage (system) level component. Click on Next.
Choose preferred SoH Forecast sensors and click on Apply.
3. Your chart is ready! You can change the time range, zoom in/out to specific areas.
