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What is a smart meter?

Did you know that there are three main types of electricity meters, and as technology evolves, so does the way consumers monitor their energy consumption and interact with the power grid?

Electronic meter

Uses microprocessors to measure and display energy consumption, offering greater accuracy than the induction meter. This device can display additional information such as consumption by time intervals or voltage. It allows for the application of time-of-use tariffs but requires manual configuration or periodic updates from the supplier.

Induction meter

Is the oldest type of meter, operating based on a rotating disk. It does not provide detailed information about energy consumption and requires manual data reading.

Smart meter

Represents the latest generation of electricity meters. This device allows bidirectional communication between the meter and the central system, facilitating the detection of outages or other anomalies in the network and providing information to both consumers and system operators. It can also register multiple price types, allowing end-users to benefit from differentiated pricing and enabling the integration of renewable energy sources into the grid.

Curious to see what a smart meter looks like?

Discover its components.

  1. Display screen

  2. Scroll button and reconnection button

  3. Consumption indicator

  4. Optical communication port

  5. Unique identification number

  6. M24 – Year of production

Benefits of smart meters

Smart meters provide precise real-time data, eliminate estimates, and allow for more efficient use of resources. Discover the advantages:

For consumers
  • Reflect the actual consumption recorded over a specific period.
  • Accurate billing, without estimates and the need for manual meter readings.
  • Access to consumption data to monitor and adjust behavior in order to reduce bills.
  • Recording multiple price types, enabling the end user to benefit from differentiated pricing.
  • Measures both consumed and produced electricity, providing benefits for prosumers.

For distributors and energy suppliers
  • Real-time transmitted data allow system operators to identify the causes of issues and reduce intervention times.
  • Remote intervention by system operators to disconnect and reconnect specific consumers.
  • Improved monitoring and control of key technical parameters related to electricity quality.
  • Efficient energy demand management and grid balancing.
  • Automation of the billing process.
  • Reduction of operational costs, eliminating manual readings and saving time and resources.

For the environment
  • Efficient energy use reduces greenhouse gas emissions, contributing to combating climate change.
  • By integrating smart metering in a country, power plants can only produce the necessary energy, avoiding overproduction and waste.
  • Smart meters have a longer lifespan, contributing to less electronic waste in the long term.
  • Contributes to reducing dependence on energy imports, encouraging more sustainable local production.
  • Helps achieve the country's green energy and energy efficiency goals.

 

Components of a smart metering system

Smart meter

Installed in the homes of residential consumers or at the premises of nonresidential consumers.

Data concentrator

Collects, assimilates and transmits the recorded data from the smart meter to the distribution system operator.

Central system (software)

Collects and processes the data, which is later used by the supply operator for issuing electricity consumption invoices.

Data transmission from the smart meter

Household

The smart meter installed in the household records data on electricity consumption. It operates at full capacity only when integrated into a smart metering system.

Smart meter

The meter transmits the data through the low-voltage network using Power Line Communication (PLC) technology.

Low-voltage network

At the transformer station level, the data concentrator collects information received from multiple meters in the area.

Transformer station

The data collected by the concentrator is transmitted to the operator's central system via a Wide Area Network (WAN).

Central system

The central system receives and analyzes the data for various purposes, including: real-time billing, detection of network anomalies, network optimization, and energy demand management.