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The Glass CHP · Battery storage

Cell temperature at the NTC

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

Cell temperature at the NTC
Outdoor air → Fresh air → Heat recovery → Heating coil → Hall → Exhaust
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What is the cell temperature at the NTC?

> The cell temperature at the NTC resistor is a critical parameter for monitoring the thermal state of individual cells within a battery energy storage system (BESS). According to IEC 62619, precise temperature management defines the lifespan of the electrodes and prevents thermal runaway. A stable measured value in the cab_temp register is the technical basis for the battery management system (BMS) to calculate the State of Health (SoH).

Bound to the register

cab_temp This wizard is linked to a real register. The value is read as read-only and calculated in-house — nothing leaves the plant. The value runs inside the container.

What the AI reads in this component

What the AI reads
  • Deviations from target temperature as an early indicator of cell imbalances.
  • Monitoring of thermal degradation to avoid capacity losses.
  • Identification of hot spots for fire risk prevention according to safety standards.
  • Determination of the optimal charging window to maximise cycle resistance.
Scenario

Monitored: continuous

The scenario: > Monitored: continuously · Interconnected sensors The scenario: one point remains too hot for a long period, the cell there ages faster, its lifespan is shortened without anyone noticing immediately. The AI: identifies the deviating sensor and distinguishes cooling issues from cell problems. It detects the trend before the limit value is reached.

Why it is important

Stable cell temperatures minimise chemical degradation and ensure long-term profitability through a higher number of usable charge cycles. Precise monitoring via cab_temp allows for slowing down the degradation rate. This significantly extends the economic lifespan of the BESS and secures the ROI. Continuous operation above optimum (K) → — K above optimum Calculation path: Rule of thumb: every +10 K ≈ half of the calendar life

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Standards & norms

What the rules require — Cell temperature at the NTC

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.