
March 3, 2026
8
Min reading

Is there a good time to buy your electricity and gas? The answer is yes. But it is unique to each business. The challenge? Know how to seize the right opportunity.
It depends on several factors: electricity and gas prices, but also the consumption profile or contractual conditions.
How to identify the best period to negotiate your company's energy contracts? How to build your energy purchasing strategy, compare offers and save money on your electricity and gas bills?
Focus on best practices to properly negotiate your energy purchases.
Any negotiation is prepared in advance. Do you want to exchange on an equal footing with energy suppliers and be able to compare offers? Understanding your current contracts and your energy consumption is an essential prerequisite for optimizing and securing your energy purchases.
What kWh rates are you paying today? What is the duration of your contractual commitment with your supplier? Do the terms of your contract allow you to renegotiate or even cancel it, or do you have to wait for the scheduled deliveries to finish? Are there fees for changes or early cancellations?
Clarifying the pricing and contractual situation allows the company toidentify the opportunity and cost of renegotiating contracts.
Optimizing electricity and gas purchases requires know its annual energy consumption, as well as its periodic variations.
This complete and detailed analysis is essential for negotiating kWh prices, selecting the offer and pricing structure that best suits your needs, but also optimizing the TURP And the subscribed power.
This diagnosis is an opportunity to detect energy wastage and power overruns. Controlling consumption contributes to the control of energy costs.
Are you considering thermal insulation work on your buildings? You have a project ofPhotovoltaic self-consumption ? Are you planning to expand your premises or acquire new electrical equipment?
A company's energy consumption is subject to fluctuations over time. When you buy energy, you must anticipate the increase or decrease in your needs. The risk? Subscribe to an offer that would become unsuitable after a few months.
Do the contractual conditions allow you to modify or cancel your energy contract? Be on the lookout for opportunities and observe the fluctuations in electricity and gas prices. However, this monitoring requires a good understanding of the complex mechanisms of energy markets.
Energy suppliers source their electricity and gas on European wholesale markets. Transactions are organized:
As in any market, prices fluctuate depending on supply and demand. They are also influenced by other factors: the production cost of the last power plant called, the prices of other financial markets (oil, CO2) or the geopolitical context.
On the energy markets, two types of products are traded.
Spot products are purchased by energy suppliers on the Spot market for same-day delivery (sub-daily products, Intraday or Within Day) or the next day (daily products or Day-Ahead).
The price of Spot products is particularly volatile. The price of electricity is fixed every day before 13:00 according to supply and demand almost in real time.
Forward products are purchased by suppliers on wholesale markets several weeks, months, or even years before actual delivery. The price per MWh is fixed and negotiated at the signing of the contract.
In electricity, a distinction is made between baseload products, for businesses that require consistent power all year round, and peakload products, for businesses that call for power mostly from 8 am to 8 pm from Monday to Friday.
For more information, see our dedicated article: Spot and Forward Prizes: What are the differences?
Analyzing the evolution of prices on the markets is the key to identifying the best time to buy your electricity and gas.
Innovative and intuitive, the SirEnergies application offers access to key indicators to manage your energy management.
By simple registration, you can see in complete transparency the market price, as well as the Spot price the next day. In addition, our newsletter deciphers the trends in the electricity, gas and CO2 markets every week.

Monitoring of market prices (electricity, gas) - Source: SirEnergies
An energy consulting firm, SirEnergies provides businesses with An energy management application.
Thanks to the monitoring of electricity and gas prices and the real-time vision of energy consumption, it allows proactive and agile energy management.
While energy markets are complex, they have paved the way for the construction of tailor-made electricity and gas contracts for professional customers.
The fixed offers are indexed to the forward market. They guarantee the company a constant rate for the duration provided for in the contract.
The advantage: you benefit from a long-term visibility on your energy budget. You also protect your business from rising electricity and gas prices. What's at stake? Buy energy when the negotiated fixed rate is the most attractive.
On the other hand, the price per kWh is often higher, as it includes the provider's margin of safety. In addition, you are not taking advantage of lower prices in the markets.
Indexed offers are indexed to the Spot price. The price per kWh varies every day according to supply and demand in almost real time. If they are very volatile, these offers allow the company to make great savings when the price of electricity is close to 0 euros. On the other hand, The price increases are brutal for the budget.
Mixed offers combine forward and spot products.
In practice, few contracts are 100% indexed to Spot products due to financial risks. The majority of indexed offers include a portion of secure purchases on the long-term market and a share of riskier purchases on the spot market.
Electricity purchases are subject to choice of rate options. Businesses can opt for:
The choice of this tariff option is strategic to control the cost of energy purchases according to the periods.
Each business is unique. Your energy needs vary according to your sector of activity, your energy strategy and your projects. While it's impossible to write down the perfect recipe for a good energy purchasing strategy, here are some tips to guide your negotiations.
In your energy contract, you can negotiate the prices per kWh and the subscription price. But not only that. Many other points are negotiable:
Time is a key element in a negotiation. You will feel more comfortable negotiating your energy contract if you anticipated. This gives you time to talk to your electricity supplier and to allow the competition to take full advantage of.
A few days before the end of the contract, you are no longer in a position of strength. You risk rushing to compare offers and neglecting market price analysis. Once the tacit renewal date has passed, you will have to wait for the next deadline to negotiate with your supplier.
Group purchasing of energy consists of grouping several consumers with similar consumption profiles to buy electricity and gas. The supply of large volumes of energy appeals to suppliers, who are more likely to negotiate advantageous rates and contract terms.
Group buying is organized by an intermediary. After identifying interested consumers, he negotiates directly with energy suppliers the terms of their future electricity or gas contract. Proposals are presented to the members of the group, who can accept or refuse the offer.
Group purchasing of energy is an attractive strategy. It frees up the constraints of negotiating and analysing offers. On the other hand, Group buying does not make it possible to build a tailor-made offer, perfectly adapted to the specific needs of the company.
Spot and forward products, price options, fixed or indexed offers, price fluctuations... : energy markets are complex. Determining the right buying strategy and the right time frame to negotiate is tricky.
However, energy is a strategic area which weighs on the company's finances. Using an energy consulting firm assures you of successful purchases.
An energy consulting firm adapts to your consumption profile. The expert takes into account the specificities of your business to build a tailor-made purchasing strategy and negotiating customized electricity and gas contracts.
Responsive and agile, experts analyze market prices for their customers. They decipher your consumption, anticipate your needs, identify opportunities and negotiate with energy suppliers. Careful, they compare every detail of the offers offered to guide you towards the most advantageous contract.
With an energy consulting firm, you benefit from a personalized long-term follow-up, with a single objective: to always better optimize your purchases and your energy costs.
The energy consulting firm provides you with its digital solutions to support you in decision-making.
With a real-time view of consumption data and electricity and gas prices, the SirEnergies application is the the basis for proactive energy management. Thanks to a good understanding and good foresight, you manage your risks and control your energy costs over time.
Energy purchases require a perfect knowledge of your company's energy consumption and a thorough understanding of market mechanisms and offers. Choosing the right strategy and the right time are two key levers for securing your contracts, controlling your energy costs and reducing your electricity and gas bills.
An energy consulting firm, SirEnergies assists you in negotiating your energy purchases, in complete transparency and trust.
Thanks to our community of experts, our large network of suppliers and our innovative and intuitive tools, we support you over the long term to build a tailor-made energy purchasing strategy and implement concrete solutions to optimize your electricity and gas contracts.

.png)
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.
.png)
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.
.png)
Non. L'IA traite la donnée (data processing), mais l'analyste apporte la compréhension du contexte (market sentiment) et la prise de décision stratégique.
.png)
La Multiannual Energy Programming (PPE) is the strategic management tool for France's energy policy. Established by the 2015 law on energy transition for green growth (LTECV), it serves as a compass for the State, communities and businesses.
Concretely, the PPE sets the priorities for action of the public authorities for the management of all forms of energy on the national territory. It covers a period of ten years, divided into two periods of five years, and must be revised periodically to adapt to technological and economic developments.
It deals with major topics such as:
It is crucial not to confuse it with National Low Carbon Strategy (SNBC). While SNBC sets carbon budgets (the ceilings for greenhouse gas emissions by sector), the PPE determines the technical and energy resources to achieve them.
.png)
Chaque modèle d'IA répond à un besoin spécifique du cycle d'achat :
L'expertise humaine reste néanmoins indispensable.
.png)
The €/MWh is a price unit used in wholesale markets, while kWh is the unit visible on your bills.
.png)
Absolument. La réforme des heures creuses vise à absorber la surproduction solaire en milieu de journée. Les créneaux d'heures creuses se déplacent progressivement vers la plage 11h00 – 17h00, notamment en été. C'est une opportunité majeure pour les sites industriels ou tertiaires capables de flexibilité.
Conseil stratégique :
.png)
Le prix Forward est fixé à l'avance (sécurité budgétaire), tandis que le prix Spot varie heure par heure selon le marché (opportunité mais risque élevé).
.png)
C'est l'indicateur d'efficacité d'un appareil électrique ; il représente le ratio entre la puissance active (utile) et la puissance apparente (totale).
.png)
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.
.png)
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.
.png)
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.
.png)
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.
.png)
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.
.png)
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).
.png)
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.
.png)
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.
.png)
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.
.png)
Instauré en 2017, ce dispositif répond à un enjeu de sécurité nationale.
L'électricité ne se stockant pas à grande échelle, le réseau doit être capable de répondre instantanément à la demande, même lors des pics de froid hivernaux. Le mécanisme incite financièrement les producteurs à maintenir leurs centrales disponibles et les entreprises à réduire leur consommation (effacement) lors de ces périodes critiques.
.png)
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.
.png)
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.
.png)
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.
.png)
La Vente de Nucléaire Universelle (VNU) est le nouveau mécanisme de régulation des prix de l'électricité en France. Contrairement à l'ARENH, il ne s'agit plus d'un volume fixe à prix réduit, mais d'une redistribution financière des revenus excédentaires d'EDF aux consommateurs, basée sur les prix de marché et les coûts de production du nucléaire historique.
.png)
Le calendrier 2026 impose deux échéances majeures :
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.
.png)
Ce seuil est jugé élevé par rapport aux prévisions actuelles du marché. Si le prix de l'électricité reste en dessous de 78 €/MWh, les entreprises ne bénéficieront d'aucune redistribution. Cela signifie que la protection promise par la réforme pourrait être inexistante dans un marché baissier, d'où l'importance de stratégies de sourcing agiles et d'outils de monitoring comme Pilott.
.png)
Ce record de 92,3 TWh s'explique par la conjonction de trois facteurs :
.png)
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.
.png)
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.
.png)
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.
.png)
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.
.png)
The central objective of PPE 3 is to engage France towards carbon neutrality by 2050 by breaking the country's historical dependence on fossil fuels.
Today, approximately 60% of final energy consumption in France still relies on imported oil and natural gas. PPE 3 aims to radically reverse this trend by setting an ambitious target: to reach 60% of carbon-free energies in final consumption by 2030.
To achieve this, PPE 3 pursues three major sub-objectives:
.png)
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.
.png)
Plusieurs leviers existent pour préserver la fiscalité locale :
.png)
En 2025, la France a atteint un solde exportateur net de 92,3 TWh, battant le précédent record de 2024 (89 TWh).
.png)
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.
.png)
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.
.png)
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.
.png)
This makes it possible to choose the right time to contract, secure your budgets and anticipate increases.
.png)
The range E @sy is available in four pricing structures to adapt to each risk profile:
.png)
Parce que la puissance souscrite en kVA détermine le prix de l'abonnement et que tout dépassement peut entraîner des surcoûts importants.
.png)
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.
.png)
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.
.png)
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).
.png)
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.
.png)
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.
.png)
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.
.png)
Car les marchés dépendent de facteurs exogènes imprévisibles (géopolitique, météo soudaine, politique) que les modèles basés sur l'historique ne peuvent pas anticiper, tout comme on ne prédit pas le Loto.
.png)
L'impact dépendra des prix de marché. Le mécanisme prévoit une redistribution si les prix dépassent 78 €/MWh. Cependant, si les cours restent bas (actuellement autour de 60 €/MWh), le dispositif ne s'activera pas. La facture sera alors indexée à 100% sur les prix de marché, rendant le choix du fournisseur et du moment d'achat critiques.
.png)
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.
.png)
La fin de l'ARENH (Accès Régulé à l'Électricité Nucléaire Historique) marque l'arrêt de la fourniture d'électricité à prix fixe garanti (42 €/MWh).
Dès le 1er janvier 2026, les entreprises sont exposées aux prix de marché, mais deux nouveaux mécanismes de régulation prennent le relais, bien que leur logique soit différente :
Conseil stratégique : Ne comptez pas sur le VNU pour réduire votre facture en 2026 si les marchés restent stables. Auditez vos contrats dès maintenant pour intégrer une part de prix fixe ou explorer des "Power Purchase Agreements" (PPA) pour sécuriser vos coûts sur le long terme.
.png)
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.
.png)
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).
.png)
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.
.png)
La réussite d'un projet collectif énergie repose sur trois piliers fondamentaux :
.png)
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.
.png)
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 :
.png)
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.

