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Power Utility

Substations, switchgear, and grid infrastructure depend on battery backup for control power, protection relays, and circuit breaker operation. Naradex provides the reliability that keeps the grid stable.

The Challenge

  • Substation batteries must operate protection relays even after years of standby
  • Circuit breaker tripping requires high instantaneous discharge current
  • Remote substations need zero-maintenance batteries that last 15+ years
  • Grid-scale installations demand large capacity 2V cell banks

The Naradex Solution

Naradex NL2 series 2V stationary batteries and OPzV tubular gel batteries are the backbone of power utility backup systems. From 150Ah to 3000Ah, our batteries provide the capacity and reliability required for substation DC systems, protection relays, and SCADA backup power.

15-20+ Year Design Life

NL2 stationary (15+ years) and OPzV gel (20+ years) minimize replacement cycles.

High Instantaneous Current

Designed to deliver the surge current needed for circuit breaker tripping.

Up to 3000Ah Capacity

Large-format 2V cells for utility-scale 48V/110V/220V DC battery banks.

Zero Maintenance

Sealed VRLA and gel designs eliminate water topping and acid checks.

Technical Overview

Typical Voltage48V / 110V / 220V DC battery banks
ApplicationsProtection relays, SCADA, circuit breaker tripping
Battery TypeNL2 stationary AGM or OPzV tubular gel
Design Life15+ years (NL2) / 20+ years (OPzV)
StandardsIEC 60896-21/22, IEEE 485/1188 compatible

Recommended Products

NL2-500 (2V 500Ah)

Medium substation DC backup

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NL2-1000 (2V 1000Ah)

Large substation and control room backup

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OPzV2-1000 (2V 1000Ah Gel)

Maximum life for critical utility installations

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Power Utility FAQ

What battery type is best for substation DC backup?
For substations, we recommend NL2 series 2V stationary AGM batteries for standard installations (15+ year life), or OPzV tubular gel batteries for critical substations requiring maximum longevity (20+ years). The choice depends on your budget, environmental conditions, and required service life.
How do I size a substation battery bank?
Substation battery sizing follows IEEE 485 methodology, considering the design load profile (continuous loads + momentary loads like breaker tripping), minimum cell voltage, temperature correction, aging factor, and required autonomy time. We provide free sizing assistance — send us your load profile and we will recommend the optimal configuration.
Can Naradex batteries handle circuit breaker tripping currents?
Yes. Our NL2 and OPzV batteries are designed for high-rate discharge applications. The ND12-200, for example, can deliver 1200A for 5 seconds. For substation applications requiring momentary high-current discharge, we specify the battery to meet your worst-case breaker tripping scenario.
What is the difference between NL2 AGM and OPzV gel for utility applications?
NL2 AGM batteries offer 15+ year design life at lower cost — suitable for most substations. OPzV tubular gel batteries offer 20+ year design life, better deep cycle performance (1500+ cycles at 80% DOD), and no acid stratification — ideal for critical or remote substations where replacement is expensive or difficult.

Need Batteries for Power Utility?

Get a custom battery solution for your project. We provide free sizing assistance and factory-direct pricing.

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