English language sitetricolore

Tackling the Energy Challenge Together Toolkit A toolkit for communities, local authorities, and schools on how to raise awareness or build capacity on sustainable energy issues.

Wireless Energy Monitors

wireless-energy-monitorsPopular models include “Current Cost”, “Wattson”, “Efergy” and “Fludiametre FM300e”.


To display instantaneous electricity demand and consumption.

Further description

This devices consist of three elements. Induction clamps clip around the power cable in your meter cupboard (three clamps for three phase). The clamps plug into a battery powered transmitter unit. The display unit receives wireless signals from the transmitter and displays instantaneous demand and records electricity consumption. Depending on the model, the consumption can be recorded at different intervals.

Where can it be found

Electrical retailers.


Wiltshire Council, Green Economy Team

Devon County Council, Environment Group

Conseil Général des Côtes d’Armor

How it has been used to date

These have been used in schools that do not have automatic meter reading so that consumption can be recorded to prioritise action in behaviour change campaigns. Staff who regularly work from home have also used the monitors to help manage their energy consumption.

User Experience

A range of products is available in this category at various price points. The higher specification models allow half hourly data collection, but all provide real time electricity demand display. They allow users to view historic data through associated software. “Wattson” enables the addition of a generation input, which will monitor the amount of power being generated by, for example, solar PV panels or a wind turbine, and allows users to see when they have “free” energy.

Collecting the data is not always straight forward for non-experts.

Users have to engage with the data, analyse the consumption and understand what actions they can take to in order to reduce consumption.

Target audience

Energy Managers, Facilities Managers, home workers.


Some energy companies will provide these free of charge to their customers. Why not contact your energy company to find out? Otherwise the wireless energy monitors are available from £30 – £140.

Case Study Link

Wiltshire Council Staff Campaign Case Study