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The Glass CHP · Battery storage

String current sensor

Ventilation/dehumidification — the silent 24/7 load, with heat recovery. Part of the glass family — like our glass BESS, biogas plant and CHP.

String current sensor
Outdoor air → Fresh air → Heat recovery → Heating coil → Hall → Exhaust
Glass-box in 4 steps

Understand → See it live → What the AI does → Your benefit

Step 1 of 4
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Understand
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See it live
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What the AI does
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Your benefit

What is a string current sensor?

> A string current sensor measures the current flow in the individual battery modules of a BESS (Battery Energy Storage System) according to IEC 62933. It enables precise monitoring of charging and discharging currents to ensure cell balance. Without accurate measurement data, the system cannot perform correct State-of-Charge (SoC) or State-of-Health (SoH) calculations.

No own register — honestly

For this component, no own register is connected; therefore, no example value is provided here. Where the system measures, the value is read as read-only and calculated internally. It becomes visible via connected components.

What the AI reads in this component

What the AI reads
  • Precise monitoring of the charging current to prevent overcharges
  • Determination of the discharge current to optimise cycle efficiency
  • Identification of imbalances between modules
  • Basis for calculating the degradation rate of battery cells
Scenario

Monitored: continuous

The scenario: > Monitored: continuously · every cell, every rack The scenario: a weak cell silently limits capacity, less yield per cycle, no alarm. The AI: tracks outliers over cycles and reports them before they slow down the string. It detects the trend before the limit is reached.

Why it is important

Precise current data prevent premature cell failure and maximise the lifespan of the BESS. By avoiding overcharges, capacity is maintained over more cycles. This ensures long-term profitability by minimising failure costs and optimising degradation curves. usable capacity (kWh) · SoC (%) · Reserve (%) → — kWh available Calculation: Capacity × (SoC − Reserve) ÷ 100

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Standards & norms

What the rules require — String current sensor

Grounded in the applicable national standards for battery energy storage systems. Same knowledge base as the European reference plant; presented anonymously.

Basis: the applicable national standards. Values shown are those measured on the plant, not target figures.