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Secure Meters Official and Authorised Distributors

Non-Tariff Meters

Home > Secure Meters > Non-Tariff Meters

Non-Tariff Meters

Home > Secure Meters > Non-Tariff Meters

SECURE

Secure Meters Ltd is an Indian multinational and privately owned business, headquartered in Udaipur, India. Their expertise is spread over the entire energy stream, from the generation of electricity, gas and heat to their final consumption, adding value at every point. They create solutions for metering billing and collection, pump efficiency (ESCO), controlling heating and cooling, energy auditing, asset monitoring, older adult care, and more.
They have offices in India, the UK, Australia, Sweden, the UAE, Malaysia, Singapore, Italy, and Bangladesh. They also have two manufacturing partnerships in Malaysia and Ghana. Sun-AP is the leading dealer and distributor of Secure Energy Metres in India.
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Authorised Non-Tariff Meters Distributors in India

Sun-AP Ecopower is an authorised distributor of Non-Tariff Meters by Secure Meters in India. We supply a complete range of non-tariff energy meters for energy monitoring, submetering, load management, and power quality applications across industrial, commercial, and solar installations pan-India.

What is a Non-Tariff Meter?

A Non-Tariff Meter is an energy meter used for internal monitoring and measurement purposes rather than for utility billing or revenue transactions. Unlike a tariff meter which is a legally certified billing instrument between a consumer and a DISCOM – a non-tariff meter is installed within a premises to monitor energy consumption at the feeder, department, machine, or tenant level.

The data from a non-tariff meter is used for internal decision-making: identifying energy waste, tracking department-wise consumption, managing load distribution, auditing power quality, and building an energy management system. They do not require BIS certification for billing use but must still meet accuracy and measurement standards relevant to their application.

Where Are Non-Tariff Meters Used?

Non-tariff meters are deployed anywhere inside a facility where you need visibility into energy consumption without it being tied to a billing transaction:

  • Feeder-level monitoring inside industrial plants and factories
  • Department or floor-wise submetering in commercial buildings and IT parks
  • Individual machine or equipment monitoring in manufacturing
  • DG set output monitoring
  • Solar inverter output and generation monitoring
  • Tenant submetering in housing complexes and commercial complexes
  • APFC panel monitoring
  • Data centre power monitoring at PDU and rack level
  • Energy auditing and baseline studies

Key Features of Non-Tariff Meters

  • Accurate true-RMS measurement of all standard electrical parameters
  • Available in single-phase and three-phase configurations
  • LED, LCD, and TFT display options depending on the series
  • RS485 Modbus RTU communication standard for SCADA and EMS integration
  • Advanced models support BACnet, Profinet, and IEC 61850 protocols
  • Harmonic measurement and power quality analysis on advanced variants
  • Onboard data logging with time-stamped records
  • Maximum demand tracking and load survey capabilities
  • Digital and analog output options
  • Compact 96x96mm panel mount design
  • Wide auxiliary supply range

Non-Tariff Meter vs Tariff Meter - What's the Difference?

Purpose

Utility billing and revenue

Internal monitoring and energy management

Certification

BIS certified, legally valid for billing

No billing certification required

Installed by

DISCOM at point of supply

Consumer/facility inside premises

Accuracy class

Class 0.5, Class 0.2S (regulated)

Class 0.5S, Class 1 (application-based)

Communication

Optical port, AMR, DLMS

Modbus, BACnet, Profinet, IEC 61850

Data use

Billing computation

Energy audit, load management, SCADA

Both serve important roles – the tariff meter determines what you pay, the non-tariff meter tells you why and where you’re consuming.

Why Non-Tariff Metering Matters

Most industrial and commercial consumers receive a single utility bill for the entire premises. Without internal submetering, there is no visibility into which department, feeder, or equipment is consuming the most energy. This makes it impossible to identify waste, set consumption targets, or verify the impact of energy efficiency initiatives.

Non-tariff meters solve this by creating a granular layer of energy data inside the facility. When integrated with an energy management system or SCADA platform via Modbus or BACnet, they provide continuous, time-stamped consumption data across every monitored point enabling informed decisions on load scheduling, power factor correction, tariff optimisation, and equipment efficiency.

For solar installations, non-tariff meters at the inverter output provide generation data that feeds into monitoring dashboards and performance verification reports. Explore our Multifunctional Meters range for advanced variants with full power quality and communication capability.

Why Purchase from Sun-AP Ecopower

Sun-AP Ecopower is an authorised distributor of Non-Tariff Meters by Secure Meters in India. We supply genuine, warranty-backed products with complete technical documentation, and our team assists with model selection based on your application, panel configuration, and integration requirements. We supply both individual units and bulk project quantities with fast dispatch across Bangalore and pan-India.

Contact us: +91 88844 90100 | marketing@sunapecopower.com

Frequently Asked Questions

What is the main purpose of a non-tariff meter?

A non-tariff meter is used for internal energy monitoring within a premises — tracking consumption at feeder, department, machine, or tenant level. The data is used for energy auditing, load management, SCADA integration, and cost allocation, not for utility billing.

What accuracy class is required for HT tariff metering in India?

HT metering points in India typically require Class 0.2S accuracy as per IS 14697 and IEC 62053-24 standards. LT connections generally use Class 1 or Class 0.5 meters depending on the DISCOM specification.

Do non-tariff meters need BIS certification?

No. Since non-tariff meters are not used for legal billing between a utility and a consumer, they do not require BIS certification. However, they must meet accuracy and communication standards relevant to the application.

Can non-tariff meters be integrated with SCADA or BMS?

Yes. Most non-tariff meters support RS485 Modbus RTU as standard. Advanced models also support Modbus TCP, BACnet, Profinet, and IEC 61850 — making them compatible with virtually all SCADA, BMS, and EMS platforms.

What is the difference between a non-tariff meter and a multifunctional meter?

A multifunctional meter is a type of non-tariff meter. All multifunctional meters are used for monitoring purposes, but a non-tariff meter is a broader category that includes simpler single-parameter panel meters as well as advanced multifunction instruments.

Does Sun-AP Ecopower supply non-tariff meters for solar applications?

Yes. We supply non-tariff meters for solar inverter output monitoring, generation tracking, and SCADA integration for both rooftop and utility-scale solar installations. Contact us at +91 88844 90100 for product recommendations.

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