Summarize with AI
What is the energy management of buildings?
Mis à jour le
February 19, 2026
7
Min reading
Energy efficiency is a priority axis of France's energy strategy. The 2015 law on the energy transition for green growth sets a target of reducing national energy consumption by 20% in 2030 compared to 2013.
In March 2023, Europe bid by setting an informal target ofee by 11.7% compared to the 2030 forecasts established in 2020. Businesses are on the front line.
Energy management is part of the solution. This intelligent device reinforces the effects of energy control actions. It is on this postulate that the BACS decree of July 20, 2020 is based. Complemented by the decree of April 23, 2023, it requires tertiary buildings whose nominal useful power is greater than 70 kW to install an automation and control system (“Building Automation and Control System”) from 1Er January 2025.
Even if you are not affected by this regulatory requirement, energy management is a powerful driver of energy performance for your company. What is energy management? How to set it up and what are its advantages for your business? Explanations.
What is energy management in concrete terms?
Energy management — or energy management — aims to reduce energy consumption of the company through intelligent and automated management systems.
Energy management of buildings
Energy management of buildings consists of monitor, analyze and optimize energy consumption company buildings. Concretely, it is structured around a computerized management system And of monitoring and control procedures.
Thanks to the analysis of the data collected by the energy management system (SME) and dashboards, companies can:
- Know in real time and item by item the consumption of each building and each equipment.
- Compare Changes in consumption from one reference period to another and measure efficiency energy-saving actions, in a process of continuous improvement.
- Detect malfunctions and anomalies of overconsumption via automated alerts, then quickly initiate corrective maintenance actions to limit energy and financial losses.
- Adjust consumption to needs, for example, by remotely and automatically programming the hours and days when the ventilation and heating will operate.
- Identify the most energy-consuming installations to imagine more efficient solutions (purchase of more efficient equipment, choice of photovoltaic self-consumption, thermal insulation...)
- Reducing electricity consumption by carrying out voluntary internal load offloads, for example in the event of tensions on the electrical network announced by the application EcoWatt.
The energy management of electric car charging
Professional electromobility has numerous environmental and financial advantages. However, the simultaneous recharging of a fleet of electric vehicles is not without consequences on the company's electrical network and, more generally, on the public electricity network.
Energy management allows the company to recharge its professional vehicles safely. It helps to warn Exceedances of the subscribed power, synonymous with the risk of cuts and financial penalties.
With the smart charging and dynamic, The terminal adjusts the power allocated to charging based on the company's real-time electrical needs, the number of cars charged and the capacities of the electric meter. It is also possible to set a maximum power per charging station.
Energy management also makes it possible to start recharging remotely or automatically at times when the electrical network is least used, often during off-peak hours.
This tool for optimizing electricity production, consumption and distribution promotes better use of resources, which in turn leads to energy and financial savings for businesses.
How to implement an energy management system in business?
The implementation of an energy management system follows the stages of project management: assessment, action plan, implementation, evaluation, improvement. The ISO 50001 standard can guide the company in setting up a” Energy management ” efficient and good practices.
An essential tool: the energy audit
The energy audit is an essential prerequisite for deploying energy management in the company. Complete energy balance of buildings, the audit is essential to define a relevant and coherent energy efficiency plan and to structure energy management.
The audit draws up a Detailed inventory of the company's consumption. It allows you to know precisely:
- The energy performance of all equipment (heating installations, domestic hot water production (DHW), ventilation, heating networks...)
- The thermal performance of buildings and the quality of the insulation.
- Energy and thermal weak points of the company and the potential for energy savings.
Data analysis results in proposal of a detailed action plan. Each recommendation is accompanied by estimates of the cost of the work, the potential energy savings and the payback time.
The energy audit can be renewed by the company for assess progress and identify areas for improvement.
Framing the energy management system
The results of the energy audit help to prioritize energy efficiency actions and to Define coherent energy management with the goals and ambitions of the company. The scope and scope of energy management will depend on the answers to numerous technical and organizational questions:
- What data does the company want to track and for what purpose?
- What scope should be given to the project and which installations to control (lighting, heating, domestic hot water, ventilation, airconditioning, renewable energy production, solar panels, heating networks...)?
- What management systems are the most adapted to the size of the company, its activities and its equipment? What software should you choose and how to implement them in the information system?
- How many sensors, detectors, meters are needed and where do you install them? Does this require connection work?
- Does the company have internal skills to supervise energy management or is it more appropriate to entrust this mission to an external expert, with centralized remote management?
Deploy and assess the company's energy management
Once the project is clearly defined, it is time to implement it in the company. Concretely, this means the deployment of a computerized energy management system, by the installation of sensors, meters and detectors IoT (Internet of Things) and by the possible technical connection of the installations.
It is also the time to Define procedures and practices monitoring and control, accompanied by communication and training actions.
Of regular evaluations make it possible to correct dysfunctions, to adapt the system to operational realities and to make it evolve according to needs.
The benefits of smart energy management
Energy management is a real ecological and financial opportunity for companies.
Improving the company's energy performance
Energy management is a powerful lever for energy performance. It reinforces the efficiency of sobriety and effectiveness actions, optimizing them and preventing dysfunctions.
On average, energy management can lead to reduction in electricity consumption by 10 to 30%, depending on the specificities of the buildings.
Reduce energy bills and maintenance costs
Energy management Reduce the electricity bill And gas of the company through the optimization of consumption, but also by the rapid identification of malfunctions. No need to wait for the receipt of an extravagant bill to identify overconsumption.
The management software immediately detects the anomaly and the equipment involved. The problem can be resolved quickly and cheaply. via corrective maintenance or remote adjustment of the installation.
Better negotiate your energy purchases
Thanks to energy management, the company knows very precisely the details of its electricity and gas consumption. This gives it a valuable advantage in negotiating its energy purchases and finding the supplier with the offer best suited to its needs.
Optimizing employee comfort
Energy management optimizes the working comfort of occupants and simplifies their daily lives. For example, it can be via the automatic ventilation and temperature adjustment depending on weather conditions. It can also be via the intelligent and automatic management of lighting and blinds depending on the brightness.
Energy management is a ecological transition solution accessible to all businesses, regardless of their size and budget capabilities. It offers real financial and energy opportunities for all businesses that want to reduce their electricity bills and improve their carbon footprint.
Today, with the digitalization And the development of artificial intelligence, energy management is constantly progressing. If theInternet of Things (IoT) already offers very precise monitoring of installations, we are now evolving towards integrated Smart Building solutions.
In these connected and communicating buildings, digital technology is at the service of energy performance. All systems are interoperable, from energy management to space management to access controls.
Thanks to connected tools and “tailor-made” services, Smart Building is asserting itself as the intelligent building with very high energy performance of the future.
Did you know that?
Electricity, gas and CO₂ prices change every day and are important to follow for buy at the best time.
Beyond supporting you in your energy optimizations, our vision is to give you this transparency in real time. Price data allows you to make better decisions for your business.
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The answers to your questions
What is the difference between Scope 1 and Scope 2?
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- Scope 1 concerns direct emissions (combustion on site),
- Scope 2 deals with indirect emissions related to purchased energy (electricity, steam).
Why launch an energy tender?
Un appel d’offres permet de mettre en concurrence plusieurs fournisseurs d’électricité et de gaz afin d’obtenir des conditions contractuelles optimisées. C’est une démarche transparente qui permet de choisir l’offre la plus adaptée aux besoins budgétaires et techniques de l’organisation.
Qu'est-ce qui remplace l'ARENH en 2026 pour les entreprises ?
L'ARENH est remplacé par le VNU (Versement Nucléaire Universel), un mécanisme de redistribution des revenus excédentaires d'EDF en cas de prix très élevés, et par les CAPN, des contrats long terme pour les gros industriels.
Pourquoi le kVA est-il crucial pour les entreprises ?
Parce que la puissance souscrite en kVA détermine le prix de l'abonnement et que tout dépassement peut entraîner des surcoûts importants.
What is energy sourcing?
Sourcing consists in identifying and analysing the offers of several electricity and gas suppliers. This approach makes it possible to obtain contracts adapted to the consumption profile and budgetary constraints of the company.
Which taxes are particularly relevant for farms?
Farms are subject to taxes such as TICFE or TICGN. Sirenergies verifies their application, identifies cases of exemption and accompanies the procedures to reduce the tax burden.
What is the difference between €/MWh and kWh?
The €/MWh is a price unit used in wholesale markets, while kWh is the unit visible on your bills.
Quelles sont les nouvelles obligations pour le Décret Tertiaire et l'Audit Énergétique ?
Le calendrier 2026 impose deux échéances majeures :
- la déclaration des consommations 2025 sur la plateforme OPERAT avant le 30 septembre
- la réalisation d'un audit énergétique avant le 11 octobre pour toutes les entreprises consommant plus de 2,75 GWh/an.
Pour simplifier ces démarches, vous pouvez centraliser vos données de consommation avec la plateforme Pilott de Sirenergies, garantissant ainsi la conformité de vos rapports réglementaires.
What are the consequences of overpowering?
Exceeding capacity leads to financial penalties and can impact the size of the contract. Adjust the correctly subscribed power makes it possible to avoid these additional costs.
Le prix de l'électricité va-t-il baisser en 2026 ?
Pas nécessairement sur votre facture finale. Si les prix de gros (le prix de l'énergie brute) ont baissé, les coûts d'acheminement (TURPE) et certaines taxes augmentent, compensant souvent la baisse de la part énergie.
What are the energy challenges for manufacturers?
Industrial companies consume large volumes of energy for their production processes. They have to deal with the volatility of prizes, multi-site management and specific taxes. Controlling costs is essential to remain competitive.
What are the challenges for tertiary companies?
Tertiary companies must manage their energy costs while guaranteeing the comfort of users (offices, shops, services). Consumption is often linked to heating, air conditioning and lighting, which requires precise monitoring to avoid budgetary excesses.
Pourquoi l'humain est-il le premier levier de la performance énergétique ?
Même le bâtiment le plus moderne et le mieux isolé perd son efficacité si ses usages sont inadaptés. La technologie et les normes ne suffisent pas : la transition énergétique est avant tout une transformation humaine.
Derrière chaque kilowattheure consommé se cache une habitude.
Un collaborateur sensibilisé comprend qu'ouvrir une fenêtre alors que le chauffage est allumé ou laisser un ordinateur en veille consomme de l'énergie inutilement. En replaçant l'humain au centre de la stratégie de gestion de l'énergie, l'entreprise s'assure que ses équipements performants sont utilisés de manière optimale, garantissant ainsi une rentabilité durable et un impact environnemental réduit.
Quand faut-il renégocier son contrat d'électricité professionnel pour 2026 ?
Idéalement entre 6 et 12 mois avant l'échéance, de préférence au printemps ou au début de l'été lorsque la demande est plus faible.
What are the main taxes applicable?
Among the taxes include TICFE, TICGN, CTA, CJA and TURPE. They represent a significant part of the bill and vary according to consumption profiles. Understanding them well is essential to optimize costs.
Comment l'eau est-elle transformée en électricité ?
Le processus repose sur l'utilisation de la force de l'eau (énergie cinétique) issue des courants, des chutes d'eau ou des dénivelés. Le fonctionnement suit trois étapes clés :
- Le barrage retient l'eau et l'oriente vers des conduites.
- La pression de l'eau fait tourner une turbine, créant de l'énergie mécanique.
- Une génératrice (alternateur) transforme cette énergie mécanique en électricité, laquelle est ensuite adaptée par un transformateur pour le réseau
Is Bellenergie Business electricity really green?
Yes. The supplier guarantees an offer 100% renewable via the official Guarantees of Origin (GO) mechanism.
For the most demanding companies, the offer GREENVOLT+ ensures very low carbon intensity electricity, sourced exclusively from independent French producers (hydraulic, wind, solar).
Comment réduire la puissance souscrite de son compteur ?
En analysant votre courbe de charge pour identifier la puissance réelle appelée, puis en demandant un ajustement à votre fournisseur ou via un expert en énergie.
Pourquoi mon contrat est-il en kVA et ma consommation en kWh ?
Le kVA mesure la capacité maximale que votre compteur peut supporter à un instant T, tandis que le kWh mesure la quantité d'énergie consommée sur une durée.
How do I read an electricity or gas bill?
One invoice consists of several elements: consumption, supplier share, taxes and contributions. The analysis of each line makes it possible to identify possible errors and to check the consistency with the signed contract.
Quel est l'impact de ces exportations sur le prix de l'électricité pour les entreprises ?
L'abondance de production française tire les prix du marché de gros vers le bas.
En vertu du mécanisme de l'Ordre de Mérite (Merit Order), les centrales les moins coûteuses (nucléaire, renouvelables) couvrent la demande plus souvent, évinçant les centrales à gaz ou charbon plus onéreuses.
Cela multiplie les épisodes de prix bas, voire négatifs, sur le marché spot.
Why change energy suppliers?
Changing suppliers can allow you to benefit from more competitive prices, adapted services or better contractual conditions. Thanks to sourcing, change is happening without interruption of supply.
Who can benefit from optimizing invoices and taxes?
All businesses, from SMEs to large organizations, can benefit from this service. Les local authorities also find it a lever to better control their budgets.
Quelle est la différence concrète entre le transport et la distribution d'électricité ?
Le transport (RTE) correspond aux "autoroutes" de l’électricité. Il s’agit de transporter de très grandes quantités d'énergie sur de longues distances, depuis les centrales de production (nucléaires, barrages, parcs éoliens offshore) vers les régions de consommation.
La distribution (Enedis) s'apparente aux "routes départementales" et aux rues. Elle récupère l'électricité à la sortie du réseau de transport pour la livrer directement chez le client final, en abaissant la tension pour qu'elle soit utilisable par vos appareils.
What are the energy challenges of the agricultural sector?
Farms must deal with high seasonal needs (greenhouse heating, irrigation, storage) and high volatility of prizes. Controlling these costs is essential to maintain profitability and secure the business.
What is the point of following Spot & Forward prices?
This makes it possible to choose the right time to contract, secure your budgets and anticipate increases.
Pourquoi la France a-t-elle exporté un volume record d'électricité en 2025 ?
Ce record de 92,3 TWh s'explique par la conjonction de trois facteurs :
- Le redressement du parc nucléaire : Après les problèmes de corrosion sous contrainte de 2022, la production nucléaire a retrouvé une forte disponibilité (373 TWh).
- L'essor des renouvelables : Une capacité installée en hausse (solaire et éolien) et une production hydraulique solide.
- Une consommation intérieure atone : La demande française reste inférieure de 6 % à la moyenne historique, créant un surplus massif disponible pour nos voisins.
How do you calculate Scope 2 emissions?
To calculate Scope 2 emissions, use the following formula:
Energy quantity (kWh) × Emission factor (kg CO₂ e/kWh).
Use databases like ADEME for precision.
Comment mobiliser les collaborateurs autour d'un projet de sobriété énergétique ?
La réussite d'un projet collectif énergie repose sur trois piliers fondamentaux :
- La visibilité : On ne gère bien que ce que l'on mesure. Partager les données de consommation via des outils comme l'application Pilott donne un sens concret aux efforts fournis.
- L'incarnation : Nommer des ambassadeurs énergie internes permet de diffuser les bonnes pratiques par l'exemple et de lever les freins opérationnels propres à chaque métier.
- La gamification : Transformer la contrainte en défi (challenges inter-services, concours de l'équipe la plus sobre) crée une dynamique positive et renforce la cohésion d'équipe autour des enjeux RSE.
L'hydroélectricité est-elle une énergie "propre" ?
Oui, elle est considérée comme une énergie renouvelable à faibles émissions de gaz à effet de serre.
De plus, l'eau ne subit aucune transformation chimique durant le cycle de production et réintègre son milieu naturel en aval.
Cependant, la construction de barrages nécessite des mesures pour protéger les écosystèmes (débit minimum, passes à poissons).
Quel est le nouveau record 2025 d'exportation d'électricité de la France ?
En 2025, la France a atteint un solde exportateur net de 92,3 TWh, battant le précédent record de 2024 (89 TWh).
Qu'est-ce que le cosinus phi
C'est l'indicateur d'efficacité d'un appareil électrique ; il représente le ratio entre la puissance active (utile) et la puissance apparente (totale).
What are the PP1 and PP2 alert days?
These are signals sent by RTE during periods of tension on the electrical network. The Sirenergies tool informs you in real time to anticipate your uses.
How to properly define your subscribed power?
The subscribed power must be calculated according to the consumption profile and uses (heating, industrial processes, tertiary equipment). One fine analysis makes it possible to ensure the adequacy between real need and contract.
How do I get a tax exemption?
Some businesses may obtain a partial or total exemption from the TICFE or the TICGN, depending on their activity and energy intensity. The support of an expert makes it possible to identify the eligibility criteria and to put together the file.
Qu'est-ce qui remplace l'ARENH depuis le 1er janvier 2026 ?
Le dispositif ARENH a laissé place au VNU (Versement Nucléaire Universel).
Ce changement structurel expose davantage les entreprises aux prix de gros, rendant la gestion des risques plus complexe qu'auparavant.
Il devient alors indispensable de définir une stratégie d'achat d'électricité avec Sirenergies pour lisser l'impact de la volatilité des marchés sur votre budget.
What taxes are particularly relevant to manufacturers?
The industry is concerned by TICFE, TICGN and other contributions that may represent an important part of invoices. Sirenergies identifies cases of exemption and accompanies the procedures to benefit from them.
Comment financer les travaux communaux sans augmenter la taxe foncière ?
Plusieurs leviers existent pour préserver la fiscalité locale :
- Les CEE (Certificats d’Économie d’Énergie) : Un financement privé majeur pour l'efficacité énergétique.
- L'optimisation de l'achat d'énergie : Choisir des contrats adaptés (prix fixes, indexés ou groupés) pour dégager des marges de manœuvre dès la première année.
- Les aides publiques : Mobiliser le Fonds Vert, le FEDER ou le Fonds Chaleur.
How to optimize taxes and contributions?
Tertiary companies are concerned by taxes such as TICFE or TICGN. Sirenergies checks the accuracy of invoices, identifies possible exemptions, and helps correct errors to sustainably reduce costs.
How to optimize the taxes and contributions of a community?
Communities are subject to taxes such as TICFE or TICGN. Sirenergies analyzes invoices, identifies exemption possibilities and fixes possible errors to reduce the tax burden.
What are the customer reviews on bellenergie Business's customer service?
In 2025, the supplier had a NPS (Net Promoter Score) of +16 and a note of 4,17/5.
Satisfaction is based on a “zero solicitation” model and 100% in-house customer service in Toulon, guaranteeing proximity and responsiveness that cannot be found with major historical suppliers.
What are the advantages of sourcing?
Sourcing offers better visibility on the market and promotes the selection of competitive contracts. It helps to reduce the risks associated with price volatility and to optimize the energy budget.
Quel est l'impact réel de la rénovation de l'éclairage public ?
C'est le levier le plus rapide pour obtenir des résultats visibles. L'éclairage représente environ 40 % de la consommation d'électricité d'une commune.
Passer au LED avec pilotage intelligent permet de réduire la facture de 50 à 80 %, avec un retour sur investissement (ROI) rapide, souvent estimé à 2 ou 3 ans.
Why is Scope 2 crucial for CSR?
It allows you to prove your commitment to the energy transition and to meet regulatory requirements.
Pourquoi ma facture de gaz va-t-elle augmenter en 2026 ?
L'augmentation s'explique par la revalorisation de l'Accise sur le gaz à 16,39 €/MWh et la hausse de 3,41 % du tarif de transport (ATRT 8).
S'y ajoute l'entrée en vigueur des Certificats de Production de Biogaz (CPB), un nouveau coût réglementaire pour soutenir le biométhane.
Face à ces évolutions, Sirenergies vous accompagne dans l'achat de gaz naturel pour sécuriser vos prix malgré la volatilité du marché.
Comment réduire ma facture si les prix du marché sont volatils ?
En 2026, les principaux leviers sont : la renégociation de votre contrat de fourniture au bon moment, l'optimisation de votre tarif d'acheminement (TURPE), la vérification de votre éligibilité aux taux réduits de taxes (Accise), et la réduction de votre consommation (efficacité énergétique, autoconsommation).
What are the concrete benefits for tertiary companies?
Les profits include a direct reduction in bills, strengthened budgetary forecasting and better control of consumption. Businesses gain visibility and efficiency thanks to adapted tools.
What are the electricity offers offered by bellenergie Business?
The range E @sy is available in four pricing structures to adapt to each risk profile:
- E @sy Fixed: 100% budget visibility without variation.
- E @sy Click: Smoothed price thanks to staggered purchases on the markets.
- E @sy Block + Spot: A mix between a secure base and a portion indexed to daily prices.
- E @sy Sport: A 100% dynamic offer to take advantage of downside opportunities in real time.
The answers to your questions
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