Glossary16/02/25

Bidirectional meter: 3 features that matter for your company

Bidirectional Meter

Quick definition: A bidirectional meter is an advanced energy measurement device that can record both incoming and outgoing electricity flow, essential for prosumers who both consume and generate power.

Table of contents

  1. Understanding bidirectional meters
  2. Key features explained
  3. India-specific implementation
  4. Practical applications
  5. How Neufin can help?
  6. Related terms
  7. FAQs
  8. Additional resources

Understanding bidirectional meters

Bidirectional meters represent a significant advancement in energy measurement technology. These sophisticated devices can measure electricity flow in both directions – power consumed from the grid and excess power exported back to it. This capability is particularly crucial in the era of distributed energy resources and prosumer systems.

Key features explained

The three essential features that make bidirectional meters indispensable are:

1. Dual-direction measurement accuracy
Modern bidirectional meters offer precise measurement capabilities with an accuracy class of 0.5S or better, ensuring exact recording of both import and export energy. This accuracy is crucial for fair billing and proper energy accounting.

2. Time of day (ToD) metering
These meters can record energy flows during different time slots, enabling differential tariffs for peak and off-peak hours. This feature helps in demand-side management and optimized energy usage patterns.

3. Advanced communication capabilities
Integration with smart grid infrastructure through various communication protocols (DLMS/COSEM, Modbus) enables real-time data monitoring and remote management capabilities.

India-specific implementation

In India, bidirectional meters have gained prominence with the rise of rooftop solar installations. The Ministry of Power’s regulations mandate specific technical requirements:

  • Compliance with IS 16444 standards for smart meters
  • Certification from Bureau of Indian Standards (BIS)
  • Integration capability with state DISCOM infrastructure

Practical applications

The implementation spans across various sectors:

  • Residential rooftop solar installations
  • Commercial buildings with solar power systems
  • Industrial facilities with cogeneration units
  • Agricultural pump sets with solar integration

How Neufin can help?

Neufin helps your company make the switch to renewable energy. We provide the fastest way for companies to buy renewable energy in India. Companies choose Neufin because we provide –

  1. Guaranteed cost savings – Lower your electricity bills without operational headaches.
  2. End-to-end execution – From feasibility to power delivery, we handle everything.
  3. Zero upfront investment options – Easy and flexible financing through Neufin Capital


Bidirectional meter visualization

Related terms

  • Net metering
  • Smart meters
  • Grid integration
  • Prosumer systems

Frequently Asked Questions (FAQs)

What is the typical lifespan of a bidirectional meter?

The average lifespan is 10-15 years with proper maintenance and protection from environmental factors.

Can existing meters be replaced with bidirectional meters?

Yes, conventional meters can be replaced with bidirectional meters, but installation must be done by authorized personnel following local regulations.

Is government approval required for bidirectional meter installation?

Yes, in India, approval from the local DISCOM is mandatory before installing a bidirectional meter for grid-connected systems.

Additional resources

  • Ministry of Power guidelines for metering
  • Central Electricity Authority regulations
  • State-specific net metering policies

Last updated: January 2024

Disclaimer: Technical specifications and regulations mentioned are subject to change. Please consult local authorities for the most current requirements.

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