
March 6, 2026
6
Min reading

The NOME law, or New Organization of the Electricity Market, was adopted in France in 2010. It aims to promote competition on The electricity market by allowing new suppliers to access the distribution network.
In this article, we will explore the main measures of the NOME Act, the ARENH mechanism, and the role of the parties involved.
The changes caused by openness to competition are profound and have changed the French electricity market in a sustainable way. At the end of this reading, you will know: the origins of ARENH, the role of suppliers and CRE, the functioning of TRVs and the current impact of the NOME law on the energy market.
The NOME law is the culmination of a long process of liberalization of the market French started in 1999.
Initially, from 1999 to 2004, major consumers (businesses and local authorities) accessed market offers. However, wholesale market prices are soaring (x3 between 2004 and 2008) because of the price of raw materials and the 2008 financial crisis. The State then offers companies the possibility of subscribing to the Regulated Transitional Market Adjustment Tariff (TarTAM) to once again benefit from a regulated rate that is lower than market prices.
This energy policy strongly displeases the European Commission, which is launching procedures to penalize France. In response, the Champsaur Commission was created in 2008. It must reconcile consumer protection, the development of competition and the financing of investments necessary for electricity production and network development. This work was a precursor to the formulation of the NOME law in 2010.
The New Organization of the Electricity Market (NOME) is adopted in 2010 In order to increasingly integrate the French energy market into the European Union's common market.
This reform aims to satisfy the European Commission's desire to see the French market become more competitive, in particular through the abolition of TRVs (Regulated Sales Tariffs) and the investment of alternative suppliers in the means of producing electricity.
This law is at the origin of the creation of ARENH (Regulated Access to Historic Nuclear Energy). Due to the current energy context, ARENH is considered to be a major asset for all French consumers. The ARENH also allows France to have a long term vision for its electricity purchases, as well as a relatively low price.
The NOME law signs The end of EDF's monopoly as the sole producer and supplier of electricity in France. ARENH is a legal provision that requires the historical supplier to sell to its competitors (Engie, TotalEnergies, ENI...) a nuclear energy at the fixed price of €42/MWh. This price guarantees EDF the coverage of its production and maintenance costs.
ARENH lowers barriers to entry into the French electricity market and allows alternative suppliers to offer attractive rates that rival those of EDF. Thanks to this competition, French businesses and individuals have a wider choice of electricity rates and suppliers.
The objective is to push prices down on the French market.

The purpose of the NOME law is certainly to liberalization of the market, the protection of the smallest consumers (individuals and VSEs/SMEs) is nonetheless a priority for public authorities. Thus, the blue regulated tariffs, characterized by a subscribed power less than 36 kVA, are maintained.
On the other hand, the regulated “yellow” and “green” tariffs, with a subscribed power greater than 36 kVA, are abandoned in favor ofmarket offers. The objective is to offer professional consumers a wide range of offers, among which is the most adapted to their needs.
Today, a large part of professional consumers are facing a sudden increase in energy costs. This increase should be put into perspective, because, unlike our European neighbors, ARENH — which constitutes around 50% of the electricity consumed in France — significantly limits the increase in electricity bills.
The NOME law protects the competitiveness of French companies on the European energy market.
To facilitate the arrival of other actors on the electricity market, the ARENH puts every year 100 TWh available to alternative suppliers.
However, this mechanism is transitory. At 1Er January 2026, ARENH as we know it will cease to exist to be replaced by another mechanism, still unknown to date. This deadline pushes alternative suppliers to innovate and invest in their own means of production in order to remain competitive on the French market.
The NOME law also has strengthened the security of electricity supply of the country. All suppliers have the obligation to secure their electricity supply, as well as the quality of their service, to protect their customers. These standards ensure a continuous and reliable supply of electricity.
The NOME law has also created a market regulation mechanism that makes it possible to monitor the activities of companies and to make them comply with obligations in terms of security of supply and quality of service.
The main issues around ARENH are placed under the authority of the CRE (Energy Regulatory Commission). She is given the role Of referee And of gendarme in order to ensure the smooth running of the mechanism.
The CRE sets prices, resolves disputes between EDF and alternative suppliers and advises the State on the volume allocated to alternative suppliers. This last point is crucial, as the nuclear rent granted to alternative suppliers by the NOME law is set at 100 TWh per year.
However, since 2018, demand from alternative suppliers has exceeded this ceiling, as wholesale market prices are higher than those of ARENH. The volume requested has only increased as prices soared, pushing CRE to exceptionally raise the 2022 ARENH ceiling to 120 TWh.
The law also changes the structure of the organization. The CRE goes from 8 to 4 commissioners, thus reducing the CRE's college to 5 members (president of the CRE + commissioners included). Although being a independent administrative authority, each member of the college is appointed by the political authorities in power to remain consistent with the objectives of the country's energy policy.
This reform allows consumers to reduce their electricity bill. Individuals are the big winners: they benefit from greater security of supply, competitive rates and TRVs are maintained for several more years.
Businesses can take advantage of a more liberal market, with long-term contracts (Exeltium, ARENH, PPA...) and medium/long-term contracts that allow them to establish bold energy purchase strategies that are consistent with their consumption profile.
The NOME law is innovative because it advocates an energy policy in which long-term contracts (ARENH, Exeltium) coexist with medium and short-term contracts (between 1 and 3 years on the wholesale market).
This unique characteristic explains why France stands out from the crowd today and serves as an inspiration for the reform of the European common market.
In this sense, many professional consumers are also turning to long-term contracts such as PPA (Power Purchase Agreement), thePhotovoltaic self-consumption... to cover itself from shocks affecting the European electricity market.

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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.
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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.
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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).
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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This makes it possible to choose the right time to contract, secure your budgets and anticipate increases.
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C'est l'indicateur d'efficacité d'un appareil électrique ; il représente le ratio entre la puissance active (utile) et la puissance apparente (totale).
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Parce que la puissance souscrite en kVA détermine le prix de l'abonnement et que tout dépassement peut entraîner des surcoûts importants.
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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.
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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.
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Chaque modèle d'IA répond à un besoin spécifique du cycle d'achat :
L'expertise humaine reste néanmoins indispensable.
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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.
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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.
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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.
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En 2025, la France a atteint un solde exportateur net de 92,3 TWh, battant le précédent record de 2024 (89 TWh).
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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.
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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.
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The €/MWh is a price unit used in wholesale markets, while kWh is the unit visible on your bills.
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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.
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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.
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Ce record de 92,3 TWh s'explique par la conjonction de trois facteurs :
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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.
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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 :
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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.
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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.
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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.
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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.
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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.
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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.
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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).
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Non. L'IA traite la donnée (data processing), mais l'analyste apporte la compréhension du contexte (market sentiment) et la prise de décision stratégique.
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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).
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The range E @sy is available in four pricing structures to adapt to each risk profile:
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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 :
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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:
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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.

