Smart Meters & Low Voltage Monitoring

Monitoring our low voltage network helps us understand current demand profiles and how best to support future demand increases. Smart meters provide a more accurate record of energy consumption and are therefore an essential tool in helping us develop this understanding.  

Find out below how we are using smart meters and low voltage monitoring in our innovation projects.

The project will establish the best way of monitoring our distribution network. By improving our understanding of how much our network is being used, our engineers will be able to identify substations with spare capacity more easily. The project is also trialling optical sensors that could provide monitoring at underground and overhead sites without remote telemetry.

Find out what else the Distribution network visibility Project is exploring >>


As part of the trial site selection we will be installing temperature sensors in substations in Brighton city centre to identify highly utilised transformers. The project will install low voltage monitoring equipment in London and Brighton, selected through the LCNF Tier 1 project – Low Voltage Current Sensor Technology Evaluation, to identify potential feeders for the installation of power electronics devices (PEDs).


Circuit breakers and switches, developed as part of the LCNF Tier 1 project – Smart Urban Low Voltage Network (Faults), will be trialled to provide uncontrolled capacity transfer between distribution substations.


Find out more about Flexible Urban Networks – Low Voltage

The Low Carbon London smart meter trial is monitoring the impact on our electricity network of thousands of customers using in-home displays linked to their smart meter to manage their electricity use.

Over 5,800 EDF Energy customers in London are participating in our smart meter trials. Of these, 1,100 customers are taking part in the first British trial of day-ahead electricity prices.

This dynamic time-of-use trial is testing whether day-ahead electricity prices via text or the in-home display could influence the demand for electricity. Flexible demand for power could make better use of intermittent renewable energy or reduce demand when the network is constrained by a fault or maintenance.

The smart meter trial will provide valuable data that will be analysed by our project partner, Imperial College London. The findings will form part of our final reports, which will be published in 2014, and will support the widespread roll out of smart meters in GB.

Find out more about Low Carbon London >>

Smart meter trial enquiries: If you are an existing smart meter trial participant and have any queries you can contact us on the following number: 0800 015 8787

We collaborated on the low voltage sensor technology project with Western Power Distribution to evaluate a range of monitoring solutions under laboratory conditions at the National Physical Laboratory and on their low voltage power networks, equipping 28 substations with sensors from seven different manufacturers.

Find out what else the Low voltage current sensor technology evaluation Project is exploring >>

This project will investigate how a greater understanding, visibility and control of the network can lead to Low Voltage active network management and enable the connection of additional low carbon technologies. The data available from the circuit breakers (in 54 distribution substations) and the single phase switches and load monitoring devices (installed in 168 link boxes) will also be used to validate current Low Voltage modelling and increase our understanding of the Low Voltage network.

Find out what else the Smart urban low voltage network Project is exploring >>


As part of the trials we will be installing smart meters into participating households along with an in-home display. We will monitor the impact on our electricity network when fuel poor customers using the in-home display linked to their smart meter manage their electricity use.


550 residents of Tower Hamlets Homes and Poplar HARCA both of which are in the London Borough of Tower Hamlets will take part in the trials.


We will install low voltage monitoring equipment as part of the trials. This monitoring is necessary if network impact is to be analysed for the project.


Find out more about the Vulnerable Customers and Energy Efficiency project >>