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French city targets smarter parking, buildings and waste with IoT network

The city of Saint-Grégoire in north-western France is working with Kerlink to install a customised IoT network and has already achieved a 43 per cent reduction in electricity consumption.

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Saint-Grégoire is using the IoT network to save energy and improve quality of life
Saint-Grégoire is using the IoT network to save energy and improve quality of life

The city of Saint-Grégoire in north-western France is working with connectivity specialist Kerlink to install a customised Internet of Things (IoT) network aimed at reducing building energy consumption by 20 per cent, cutting CO2 emissions and making use of city services more convenient.

 

The city, which is home to 9,700 residents across a 17km²-area, has already achieved a 43 per cent reduction in electricity consumption between October 2020 and January 2021.

 

Real-time data

 

Kerlink hopes the deployment will help to show how the IoT and LoRaWAN networks can help small cities and towns to better manage energy and improve public services.

 

The network combines LoRaWAN IoT connectivity with Kerlink’s indoor and outdoor Wirne LoRaWAN gateways, and its Wanesy Management Centre, wi-fi hotspots and Saint-Grégoire’s existing optical fibre network. It was deployed with Kerlink’s integrator partner, Sensing Vision, based in Rennes.

 

This reduction was achieved by transforming real-time data into actionable information, and guiding city staff to adjust systems to match the requested service level, associated with the real occupancy of public buildings. Real-time alerts by email/SMS allow the city staff to react without delay to leakages, wrong parameters and system dysfunctions.

 

“Studies report that public buildings waste a lot of electricity use without systems that monitor and manage room usage, lighting and temperature,” said Benjamin Maury, smart city and smart building director at Kerlink. “Kerlink’s LoRaWAN solutions can be configured to meet the precise building-efficiency goals of public officials in any size of municipality, including simple management of network options.

“Studies report that public buildings waste a lot of electricity use without systems that monitor and manage room usage, lighting and temperature”

“Add to that the efficient use of parking spaces and monitoring of refuse collection, and you have a flexible solution that reduces costs, saves energy and improves quality of life for city residents.”

 

Industrial-grade Wirnet LoRaWAN gateways, including Wirnet iStation outdoor gateways and a Wirnet iFemtoCell indoor gateway, receive and route data from 68 energy-use sensors, 150 parking-spot sensors and two Covid-19 refrigerator-sensor sites across the city through the Wansey Management Centre to Sensing Vision’s Energy Suite solution. City staff continuously monitor the data with Sensing Vision’s dashboard and gets notified by email/SMS for critical alerts.

 

“As an integrator of communication networks that include equipment and software from a variety of vendors, Sensing Vision confidently recommends and works with Kerlink’s technology,” said Benoit Vagneur, president of Sensing Vision. “Our collaborations in smart-city projects have helped municipal officials meet their goals for energy conservation and lower emissions, as well as for making essential services more efficient.”

 

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