The Internet of Things, an essential tool for compliance with the High Decree


Managers of Grade 3 buildings with a surface area greater than or equal to 1,000 square meters must report their energy consumption before September 30, 2022. It is a task for which the technology has proven itself.

The municipality of Val d’Oise launched a call for bids between February and March 2022 to manage the energy consumption of its buildings spread over 28 sites and thus meet the requirements of the third decree. Very few communities have done the same, according to the representatives interviewed. “There are many initiatives in France but this is still a minority,” warns Frédéric Noche, President and Co-Founder of the French Design Office Alisius who participated in the call for bids. Because there is an urgent need: the deadline set in the third decree sets September 30, 2022 for the registration and depreciation of buildings.

For Birdz, it is essential to be able to collect energy data in an automated and regular manner without having to contact different supplier websites. © Birds

As a reminder, this decree provides, for any manager of Class III buildings with a floor area greater than or equal to 1,000 square metres, to declare their depreciation for 2020 and 2021 and to set, during the period from 2010 to 2019, a reference year (The most consumable, regardless of the influence of weather conditions, editor’s note) With one goal: to reduce energy consumption by 40% before the end of 2030, 50% before the end of 2040, and 60% before the end of 2050 in relative terms or according to a threshold that may not be exceeded in absolute terms. With these measures, the old buildings should be closer to the consumption of new buildings that meet the new standards. says Frédéric Nucci, who states that only 6% of buildings in France are connected.

Under the third decree, the first action that building managers have to take is to declare their energy consumption. To do this, they will have to collect all their bills, since “a few buildings have smart meters from 2010,” asserts Xavier Devaux, SBA (Smart Building Alliance) member and reference for smart buildings, before adding: “They will also have to take in Consider events that may have an impact. For example, AccorHotels Arena in Bercy organized a windsurfing competition in 2016 where 30 fans simulated winds on their artificial pool. Use and consumption depend.”

Internet of things for decision making

To manage this report, managers primarily look for dashboards. “With the Internet of Things, large groups such as Microsoft, IBM, or Legrand are competing with consulting firms,” notes Arthur Menkes, director of business development at distributor Tech Data. “To avoid manual readings and improve the reliability and quality of data in the long run, the Internet of Things is essential,” highlights Thibaut de Denchen, Energy and Environmental Business Developer at Birds, IoT subsidiary of Veolia, noting the advantages of connecting water, gas and electricity meters (Read the column by Thibault de Dinechin Tertiary Decree: How do you respond to an ambitious environmental and economic challenge?). “Having the details of consumption makes it possible to identify losses and elements of high consumption in order to reduce them,” stresses Frédéric Noschi, at Alizeus.

Once depreciation is announced and the reference year has been set, managers will have to work to achieve a 40% reduction by 2030. Uses must be targeted. “In this case, actuator-type sensors will reveal all their usefulness, for example for conditioning heating in a room only if it is occupied,” says Bruno Hamamlian, Director of Data For Business BU at Birdz. Temperature and presence sensors are among the main products.

“Many warehouse docks remain open all day, with no dimmers, while the site is heated.”

For Raphaël Autale, CEO of French engineering firm Tekin, the IoT will “demonstrate the usefulness of the action to be taken” and will make end users consider whether or not the space needs to be heated: “Of the many warehouse docks remaining open all day, without a device Blackout, while the site is hot.” This was the case, for example, at the Revima Aviation plant, which put forward the Internet of Things project (Read our article Revima Aviation Factory in Normandy is being modernized with the Internet of Things). For Bruno Hamamlian, it is the association between temperature and a feeling of comfort that will promote the adoption of energy improvement measures.

Regarding the measures to be taken, two types of assets will be affected: passive substances (eg double glazing installation) and active substances. “It is not necessary to connect passive equipment, in active equipment IoT has the card to play,” recognizes Xavier Devaux, of the SBA. An opinion shared by Anthony Bennett, CEO of start-up Wise Building: “To equip everything with IoT in the old building would be very expensive, you have to make a mix according to the uses that are most relevant between IoT and operating systems. Reduce investments while reducing consumption.”

“The decree has already been postponed once by Ademe”

If the movement appeared to be underway, the actors doubted that the directors would all be ready by the deadline of September 30, 2022. If a target was not achieved, penalties would be applied by the state: an administrative fine equal to 1,500 euros for natural persons and 7,500 euros for legal persons, as well as Publication of the official notice on the website of the state services ”, states on its website the French company Smart Watteo, which specializes in improving energy efficiency in buildings.

“The decree has already been postponed once by Ademe (which ran from September 30, 2021 to September 30, 2022, editor’s note) Because there was no ready actor. The situation may not change because users want to maintain their level of comfort and not all equipment is connected, says Xavier Devaux, fearing that many of them are invoking the ROI clause set out in Decree III: if measures make it possible to achieve a 40% reduction If the energy consumption is not viable, that is, they have a return on investment of more than six years, the manager may request an exemption. Set the brakes as quickly as possible so that the managers are committed to the process. The latter can be discouraged because, despite current efforts, carbon dioxide production is not declining, but by surrounding ourselves with people who know the subject, we can get there.”

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