Summarize with AI
Individual solar self-consumption, take control of your energy
Mis à jour le
March 6, 2026
6
Min reading
Against the background of the energy and geopolitical crisis, individual solar self-consumption has exploded in France since 2020. Between 2020 and 2022, the number of installations was multiplied by 2.5.
It must be said that photovoltaic self-consumption combines advantages. But is it suitable for businesses? At a time of instability in energy markets, the tertiary decree and the photovoltaic obligations of the Climate and Resilience Law, the answer is yes!
How does solar self-consumption work? What are its advantages? How to set up an individual self-consumption system in your company?
Here's the guide to help you take the plunge green electricity consumption, sustainable, local and renewable.
What is individual solar self-consumption?
Photovoltaic self-consumption still creates distrust in businesses. However, it is an efficient solution, adapted to the electricity consumption needs of professionals.
Individual solar self-consumption: definition
As the name suggests, individual solar self-consumption consists of consume directly the electricity produced locally by your own photovoltaic installation.
This solution is very suitable for professionals whose electricity needs during the day coincide with the production peaks ofsolar energy. With this system, the company is guaranteed access to clean, renewable and local energy.
How do individual solar self-consumption installations work?
Electricity is produced by the encounter between the particles of light and the electrons of photovoltaic modules. THEinverter Transform direct current into alternating current. It ensures the safety of the photovoltaic installation by interrupting its operation in the event of overload or short circuit. Les batteries store electricity for later use.
A photovoltaic installation can operate in single phase or in three phase. Nevertheless, a three-phase inverter is more suitable for self-consumption. It allows better distribution of production of electricity according to consumption, and in particular to better meet the needs of powerful machines.
Benefits of individual solar self-consumption for businesses
La reduction in energy costs is the first concrete and immediate advantage of individual photovoltaic self-consumption. Feedback on experience shows an average reduction of 20 to 40% in energy bills.
Self-consumption reduces the need for electricity from the network, and therefore energy dependence. In an unstable global context, she secures part of the energy supplies.
It is also a concrete gesture for the environment, accessible to all businesses. Beyond Reduce their carbon footprint, self-consumption value their image of a company committed to energy transition And the renewables.
How to set up an individual solar self-consumption system?
Between needs analysis, financial and technical study, urban planning and connection procedures, an individual photovoltaic self-consumption project requires several months before it is put into operation.
Analyze current energy consumption
The analysis of energy consumption helps to size the installation and estimate the power and surface area of photovoltaic panels required.
The SirEnergies platform supports companies to analyze and monitor their energy consumption, including all uses (buildings, equipment, machines, lighting, etc.). Thanks to this tool, the company accesses its data in real time to accurately estimate its needs for individual solar self-consumption.
Evaluate the financial feasibility of self-consumption
How long will it take for the investments to be amortized and profitable? That is the only question that arises. Because self-consumption is always a profitable choice in the long term. There are several factors that affect profitability:
- The sunshine rate.
- The orientation and the inclination of the solar panels, and any shading.
- Technical choices (type of panels, surface area, etc.)
- Financial aid (self-consumption bonus, reduction mechanism, local subsidies, etc.)
Evaluate the technical feasibility of the solar project
The pose of photovoltaic panels on the roofs of existing buildings is often preferred. However, it requires three conditions: a flat surface, a roof with a lifespan of at least 30 years, and a frame capable of supporting approximately 15 kg/m².
If installation on the roof is not possible, other solutions exist such as Photovoltaic car park shades Or the ground based photovoltaic power plants.
The ideal? Building a new turnkey photovoltaic building. But be careful not to give in to the sirens of third party investment, which is irreconcilable with self-consumption.
Undertake administrative and regulatory procedures
Building a photovoltaic power plant requiresobtain urban planning permission. From 3 to 1,000 kW, it is necessary to perform a prior declaration of work (DP). Beyond that, a file of building permit must be mounted.
In partial self-consumption, the solar installation must be connected to the public electricity network. But even with total self-consumption, the connection is recommended. This is a condition for obtaining the self-consumption premium. It also allows the company to have a backup source of electricity.
La connection request requires a few weeks or months depending on the complexity of the project. A tip: Anticipate it from the start of the project.
Individual self-consumption: favor total self-consumption or with the resale of surplus?
Total self-consumption or with total or partial sale? Both are possible. It is up to each company to choose the solution that suits them according to their energy transition goals, electricity needs and financial calculations.
Total photovoltaic self-consumption
When is total self-consumption the company consumes all of the solar energy produced by its photovoltaic installation.
The electricity is consumed immediately or later. Production surpluses are stored in batteries. They are injected into the internal network when photovoltaic production decreases.
The advantage of this solution? The higher the self-consumption rate, the more the energy bill decreases.
Self-consumption with the resale of surplus production
Partial self-consumption consists in consume only part of the solar energy produced and resell surplus production.
EDF and the Local Distribution Companies (ELD) have the obligation to buy back the electricity produced by photovoltaic power plants from individuals and professionals.
Concretely, the producer signs a 20-year contract with EDF Purchase obligation To one fixed purchase rate. It's the regulated rate in force on the applicable signature date. It is updated quarterly by the Energy Regulatory Commission (CRE).
The electricity is sold directly on the market for photovoltaic power plants greater than 500 kWp. Installations between 100 and 500 kWp that cannot have a carbon footprint of less than 550 kg CO2 eq/kWc are also concerned.
What is the difference between individual self-consumption and collective self-consumption?
Authorized since 2017, collective self-consumption Is a short circuit of energy that brings together several producers and consumers of photovoltaic electricity locally.
It is a Very framed device. Thanks to collective self-consumption, businesses that do not have the capacity to invest in a solar installation can access clean, local and renewable energy. The device also allows a producer to market its electricity directly to neighboring consumers.
For businesses, individual solar self-consumption offers an efficient solution to combine savings and ecology. However, energy independence is still difficult to achieve. Adopting energy sobriety in his business and improve energy performance of buildings increase the rate of self-consumption to get closer to this ideal.
Did you know that?
Recognizing the climate emergency, SirEnergies offers professionals and businesses the opportunity to limit the ecological impact in terms of energy.
We have made the choice to work with key players in solar photovoltaic to offer you support solutions dedicated to your photovoltaic self-consumption projects.
Click below for more information:
Take the first step towards optimization
In a few clicks, organize an exchange with one of our experts.
weekly newsletter subscribers
4.9
The answers to your questions
How do I get a tax exemption?
.png){kind=icon}
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.
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
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.
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.
What is the difference between Scope 1 and Scope 2?
- Scope 1 concerns direct emissions (combustion on site),
- Scope 2 deals with indirect emissions related to purchased energy (electricity, steam).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Why is Scope 2 crucial for CSR?
It allows you to prove your commitment to the energy transition and to meet regulatory requirements.
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.
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.
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 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.
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.
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.
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).
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 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.
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).
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.
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.
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.
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.
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.
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.
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 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.
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.
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).
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.
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.
The answers to your questions
No items found.